Allied Telesis Switch AR700 Series User Manual

AR700 Series Router  
Hardware Reference  
AR725  
AR745  
AR750S  
AR750S-DP  
AR770S  
 
2
AR700 Series Router  
AR700 Series Router Hardware Reference  
Document Number C613-03087-00 Rev E.  
© 2005-2006 Allied Telesis Inc. All rights reserved. No part of this publication may be  
reproduced without prior written permission from Allied Telesis Inc.  
Allied Telesis Inc. reserves the right to change specifications and other information in  
this document without prior written notice. The information provided herein is subject  
to change without notice. In no event shall Allied Telesis Inc. be liable for any incidental,  
special, indirect, or consequential damages whatsoever, including but not limited to lost  
profits, arising out of or related to this manual or the information contained herein, even  
if Allied Telesis Inc. has been advised of, known, or should have known, the possibility  
of such damages.  
All company names, logos, and product designs that are trademarks or registered  
trademarks are the property of their respective owners.  
C613-03087-00 Rev E  
 
Hardware Reference  
3
Contents  
C613-03087-00 Rev E  
 
4
AR700 Series Router  
Introduction  
This Hardware Reference describes the hardware features of AR700 Series  
router models, including information on PCI Accelerator Cards (PACs).  
Hardware and installation information for Port Interface Cards (PICs) and  
Network Service Modules (NSMs) can be found in their respective Quick  
Install Guides and Hardware References.  
Software and configuration This hardware reference does not cover software  
configuration or software installation procedures. For information on software,  
refer to your router’s Software Reference.  
Models Covered By This Reference  
This Hardware Reference includes information on the following models:  
AR725 router  
AR745 router  
AR750S router  
AR750S-DP router  
AR770S router  
Hardware Reference updates can be found at  
Where To Find More Information  
The Documentation and Tools CD-ROM bundled with each router contains the  
complete Document Set for your router and, where applicable, its expansion  
options. The CD-ROM also includes tools for managing your router. These  
documents can also be downloaded from the Support Site at  
The Document Set includes:  
The Installation and Safety Guide for your router, which provides safety and  
statutory information and outlines how to install the router.  
This AR700 Series Router Hardware Reference for your router, which provides  
detailed information on the hardware features of AR routers.  
The AR700 Series Router Software Reference for your router, which provides  
detailed information on configuring the router and its software.  
The Port Interface Card Quick Install Guide, which outlines the procedure for  
installing PICs  
The Port Interface Card Hardware Reference, which provides detailed  
information on PICs.  
The Network Service Module Quick Install Guide, which outlines the  
procedure for installing an NSM  
The Network Service Module Hardware Reference, which provides detailed  
information on NSMs.  
The AR740 RPS Quick Install Guide, which outlines the procedure for  
installing a redundant power supply for the AR725 and AR745 AC models.  
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Hardware Reference  
5
AT-TFTP Server for Windows, for downloading software versions.  
Adobe Acrobat Reader, for viewing online documentation.  
AR700 Series Routers  
All AR700 Series routers include Ethernet ports, asynchronous ports, and PIC  
bays; the AR750S, AR750S-DP and AR770S also have switch ports. PIC bays  
add expansion flexibility by allowing the installation of PIC cards, which are  
available with additional interfaces, such as ISDN (PRI E1/T1, BRI S/T),  
synchronous, or asynchronous ports. The AT-AR745 routers also have an  
expansion bay to accommodate a Network Service Module (NSM), which either  
directly provides further interfaces, or provides multiple slots where additional  
PIC interfaces can be added.  
The AR725 and AR745 routers have a dedicated PCI Accelerator Card (PAC)  
slot that accommodates special purpose PAC coprocessor cards. PAC cards  
provide additional functionality or performance, such as compression or  
encryption, through a high performance PCI bus, but do not add extra  
interfaces. The AR750S and the AR750S-DP have built-in high performance  
encryption processing.  
AR700 Series models are distinguished by the number and types of ports and  
presence or absence of an NSM bay and/or PCI Accelerator Card (PAC) slot.  
Table 1: Interface configurations for AR700 Series routers  
AR700 Series  
Model  
Ethernet  
(Eth) Ports  
Ethernet  
Switch Ports  
Asynchronous  
Ports  
NSM  
Bays  
PIC Bays  
PAC Slot  
AT-AR725  
AT-AR745  
AT-AR750S  
2 (10/100)  
-
2
2
1
2
2
2
-
1
-
1
1
2 (10/100)  
2 (10/100)  
-
5 (10/100)  
built in  
encryption  
AT-AR750S-DP  
AT-AR770S  
2 (10/100)  
5 (10/100)  
1
1
2
2
-
-
built in  
encryption  
2 (fibre-optic SFP  
or 10/100/1000)  
4 (10/100/1000)  
built in  
encryption  
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AR700 Series Router  
AR725 Router  
The AT-AR725 router consists of a base CPU card, enclosure and power supply.  
The base CPU card supports dual 10/100 autonegotiating Ethernet LAN (eth)  
ports and two asynchronous RS-232 ports.  
Figure 1: Front and rear panels of the AR725 Series router  
Front Panel  
AR725  
Enterprise Router  
STATUS  
COMPACT FLASH  
POWER  
RUN  
SYSTEM  
CLEAR SECURITY  
ACTIVITY  
Base LEDs  
Compact Flash  
Rear Panel  
DC power inlet for RPS  
Two PIC bays with PICs installed  
RPS DC POWER  
5V/5.5A  
12V/1.0A  
-12V/0.1A  
PIC  
1
DISCONNECT POWER BEFORE INSTALLING/REMOVING PIC  
PIC  
0
L/A  
L/A  
AC POWER  
100-240 VAC  
50-60 Hz  
PIC  
1
ACT DAT ER CLR  
ENGINE  
BASE  
1.0  
A
100M  
100M  
PIC  
0
PWR RUN SYS SEC  
ETHERNET  
1
ETHERNET  
0
PORT  
1
PORT 0  
Asynchronous  
ports  
Ethernet ports  
and LEDs  
Power switch  
AC power inlet  
Mac engine LEDs  
and base LEDs  
725FRP  
Figure 1 shows the AT-AR725 router’s front and rear panels (with a PIC  
installed in each PIC bay). “AR725 LEDs and what they mean” on page 10 lists  
functions of the AT-AR725’s LEDs. Additional rear panel LEDs may be present  
if PICs are installed. Functions of LEDs on PICs are described in the Port  
Interface Card Quick Install Guide and Port Interface Card Hardware Reference.  
Hardware Features  
Main hardware features of the AT-AR725 are:  
80 MHz RISC processor  
1 MByte of EPROM  
128 MBytes of synchronous DRAM (DIMM module)  
16 MBytes of on-board flash memory  
CompactFlash slot  
128 KBytes of battery backed SRAM  
2 high performance autonegotiating full duplex 10/100 Fast Ethernet LAN  
ports  
2 RS-232 asynchronous serial ports  
2 PIC bays  
A PAC compression/encryption card slot  
Connector for a Redundant Power Supply (RPS)  
-48 V DC power supply option  
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Hardware Reference  
7
Asynchronous Ports The two asynchronous serial ports can be used as general purpose ports for  
terminals, printers, or modems. They are effectively identical and can be  
independently configured. The default communications settings are:  
9600 bps  
8 data bits  
1 stop bit  
No parity  
Hardware flow control  
PIC Bays The chassis has two Port Interface Card (PIC) bays, which can accommodate any  
combination of the following PICs:  
AT-AR020 PRI E1/T1 PIC, one primary rate E1/T1 port  
AT-AR021(S) BRI-S/T PIC, one basic rate ISDN S/T port  
AT-AR021(U) BRI-U PIC, one basic rate ISDN U port  
AT-AR022 ETH PIC, one Ethernet LAN AUI/10BASE-T port  
AT-AR023 SYN PIC, one synchronous port with universal 50-way  
AMPLIMITE connector  
AT-AR024 ASYN4 PIC, four asynchronous ports with R-J45 connectors  
AT-AR026 4ETH PIC, four 10BASE-T/100BASE-TX ports with RJ-45  
connectors  
AT-AR027 VoIP-FXS PIC, two Foreign Exchange Subscriber (FXS) ports  
with RJ-11 connectors  
CompactFlash slot The AT-AR725 has a CompactFlash slot on its front panel. For information on  
CompactFlash, including a list of compatible flash cards, see “CompactFlash  
PAC slot The AT-AR725 router has a single PAC slot inside the chassis. When installed,  
PACs provide hardware-based encryption and or compression capability via a  
PCI interface. For information on PACs, including a list of compatible PACs,  
Power Supply  
The AT-AR725 is available in two power supply configurations: a universal AC  
model and a 48V DC model. The AC model includes an inlet for the AR740 RPS  
(Redundant Power Supply). The AR740 RPS can be purchased separately, and  
each unit supports up to two AT-AR725 or AT-AR745 routers.  
AT-AR725 AC AC models of the AT-AR725 have a universal AC input connector and a power  
switch on their rear panels. A DB25 connector for an optional external  
Redundant Power Supply (RPS), such as the AR740 RPS, is also located on the  
rear panel.  
Pin outs for the DB25 RPS connector, and cable specifications for RPS supply  
The router can monitor the PSU and the fan in both the router and the RPS. See  
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8
AR700 Series Router  
AT-AR725-80 DC The AT-AR725-80, designed for use by telecommunication carrier sites,  
supports connection to a 48V DC power supply (in the range 39 to 60 V DC).  
The DC model does not support an RPS connection, and does not support  
monitoring of the main PSU or fan.  
DC supply cable specifications:  
Number of wires (cores): 3  
2
Minimum size: 2.1 mm (14 AWG)  
Minimum cable rating: 600 V, 90 degrees Celsius  
DC power supply specifications:  
48 V DC (38 V to 60 V DC is acceptable)  
Either positive grounded or negative grounded  
Figure 2: DC Power inlet terminals on an AR725  
FOR CENTRALIZED DC  
POWER CONNECTION,  
INSTALL ONLY IN A  
RESTRICTED AREA  
3
1
DC POWER  
38-60 VDC  
, 2 A  
Safety Safety information and instructions outlining how to connect an AT-  
AR725-80 to a DC power supply can be found in the AR700 Series Router  
Installation and Safety Guide. You should read these instructions before  
attempting to connect the router to a DC power supply.  
Caution Some interfaces that may be installed in the router are not  
transformer isolated. This means they will be referenced to the frame  
ground of the equipment and may be damaged if connected to an  
interface on another piece of equipment which is at a different ground  
potential.  
!
Redundant Power AC models of the AT-AR725 can be used in conjunction with the AR740 RPS.  
Each AR740 RPS can provide power supply and mains circuit redundancy for  
up to two AT-AR725s or AT-AR745s. For more information on the AR740 RPS,  
Supply (RPS)  
For connection to an AR740 RPS, the AT-AR725 router has a female DB25  
connector on its rear panel (Figure 3). Pin outs for the connector are listed in  
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Hardware Reference  
9
Figure 3: DB25 female connector pinout for an RPS on the AT-AR725 rear panel  
Pin 13  
Pin 1  
Pin 14  
Pin 25  
A740db25  
Table 2: DB25 RPS power connector pin out on the AT-AR725  
Pin  
Function  
Keying  
Direction  
-
1, 25  
2, 14  
+12 V  
input  
3-5, 15-17  
+5 V  
input  
6-8, 18-20  
0 V  
input  
9
-12 V  
input  
10  
11  
12  
13  
21  
22  
23  
24  
VCC  
output  
output  
output  
input  
Main PSU error  
Main fan error  
RPS disconnected  
Sense 0 V  
Sense +5 V  
RPS PSU error  
RPS fan error  
output  
output  
output  
input  
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10  
AR700 Series Router  
AR725 LEDs and what they mean  
Functions of the AR725’s LEDs are shown in the following table. Additional  
rear panel LEDs may be present if a PIC or NSM is installed. Functions of PIC  
and NSM LEDs are described in their respective Hardware References.  
LED  
Function  
Front panel  
Rear panel  
ETH  
These LEDs give indications about the Ethernet interfaces.There are two LEDs for  
each Eth port.  
L/A (Link/Activity) Lit green when the Ethernet interface is connected to a device (e.g., a hub), which  
is generating link pulses. Blinks yellow when data is being transmitted or received  
on the Ethernet interface.  
100M  
PIC0/PIC1  
BASE  
PWR  
Lit when the Ethernet interface is in 100 Mbps mode.  
Lit when a PIC is inserted in either PIC bay 0 or PIC bay 1 (one LED for each PIC).  
These LEDs indicate the state of the main router unit.  
Power  
Run  
Lit when power is supplied and the router is switched on.  
RUN  
Lit when the internal processor is executing code. If the processor stops for any  
reason (a fault condition), then the LED will not be lit.  
System  
SYS  
SEC  
This LED is not normally lit. It is used to signal various system conditions (e.g.,  
when the processor executes the reboot sequence). Generally it signals a possible  
fault condition, but it is lit during a power-up or operator initiated reboot, and  
remains lit until a software version has been loaded from flash memory.  
Security  
Lit when a user is logged in with SECURITY OFFICER privilege and the router is in  
SECURITY MODE.  
Activity  
Lit when the compact flash card is accessed.  
(Compact Flash)  
Do not remove the compact flash card when the LED is lit.  
These LEDs give indications about PAC (PCI Accelerator Card), which can be  
installed for encryption and/or compression purposes.  
ENGINE  
ACT  
DAT  
ERR  
CLR  
Lit when a PAC is installed in the PAC slot.  
Lit when data is transferred to or from the PAC.  
Lit when there is an error in the data transmission to or from the PAC.  
Clear  
Lit when a secure router has enabled PPP interfaces or Frame Relay circuits that are  
configured to send clear text.  
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Hardware Reference  
11  
AR745 Router  
The AT-AR745 router consists of a base CPU card, enclosure, and power  
supply. The base CPU card supports two 10/100 autonegotiating Ethernet  
LAN (eth) ports and two asynchronous RS-232 ports.  
Front and Rear Panels  
Front and rear panels of the AT-AR745 router with a Port Interface Card (PIC)  
installed in each PIC bay, and an AT-AR040 4-PIC NSM installed in the NSM  
bay, are shown in the following figure.  
Figure 4: Front and rear panels of the AT-AR745 router  
Front Panel  
AR745  
Modular Enterprise Router  
STATUS  
SYSTEM  
COMPACT FLASH  
POWER  
RUN  
CLEAR SECURITY  
ACTIVITY  
LEDs  
Compact Flash  
Rear Panel  
DC power inlet for RPS  
Two PIC bays with PICs installed  
3
0
3
0
RPS DC POWER  
5V/5.5A  
12V/1.0A  
-12V/0.1A  
3
2
0
PIC  
1
DISCONNECT POWER BEFORE INSTALLING/REMOVING PIC  
PIC  
0
SYN  
SYN  
L/A  
L/A  
AC POWER  
Tx  
Tx  
Rx  
NSM  
0
SWAP  
IN  
PIC  
1
ACT DAT ER CLR  
100-240 VAC  
50-60 Hz  
1
ENGINE  
BASE  
Rx  
1.0  
A
HOT  
SWAP  
100M  
100M  
PIC  
0
PWR RUN SYS SEC  
ETHERNET  
1
ETHERNET  
0
PORT  
1
PORT 0  
Power switch  
AC power inlet  
Ethernet ports  
and LEDs  
Asynchronous  
ports  
NSM bay with  
AT-AR040 4-PIC NSM and PICs installed  
NSM Hot  
MAC engine  
and base LEDs  
Swap button  
and LEDs  
745FRP  
Hardware Features  
Main hardware features of the AT-AR745 are:  
80 MHz RISC processor  
1 MByte of EPROM  
128 MBytes of synchronous DRAM (DIMM module)  
16 MBytes of on-board flash memory  
CompactFlash slot  
128 KBytes of battery-backed SRAM (NVS)  
2 x 10/100 Mbps autonegotiating full-duplex Ethernet LAN (eth) ports  
2 RS-232 asynchronous serial ports  
2 PIC bays  
1 hot swappable Network Service Module (NSM) bay  
1 PAC slot for PAC compression and/or encryption cards  
Connector for a Redundant Power Supply (RPS)  
-48 V DC power supply option  
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12  
AR700 Series Router  
PIC bays and NSM The AT-AR745 chassis has two PIC bays. A further four PIC bays can be added  
if an AT-AR040 NSM is installed in the NSM bay.  
bay  
The NSM bay allows one NSM to be installed in the chassis. NSMs either have  
fixed ports (e.g., AT-AR041 and AT-AR042 BRI S/T NSMs) or PIC bays (e.g.,  
the AT-AR040 4 PIC NSM). For detailed information on NSMs, see the Network  
Service Module Hardware Reference.  
The PIC bays and the 4-PIC NSM can accommodate combinations of the  
following PICs (with a maximum of two E1/T1/PRI cards):  
AT-AR020 PRI E1/T1 PIC, one primary rate E1/T1 port  
AT-AR021(S) BRI-S/T PIC, one basic rate ISDN S/T port  
AT-AR021(U) BRI-U PIC, one basic rate ISDN U port  
AT-AR023 SYN PIC, one synchronous port with universal 50-way  
AMPLIMITE connector  
AT-AR024 ASYN4 PIC, four asynchronous ports with RJ-45 connectors  
AT-AR027 VoIP-FXS PIC, two Foreign Exchange Subscriber (FXS) ports  
with RJ-11 connectors  
Recommendation AT-AR022 ETH PICs and AT-AR026 4ETH PICs are not  
recommended for use in NSM PIC bays, as performance of these interfaces is  
likely to be reduced and packet loss may occur. When used with an AR745  
router, ETH PICs should be installed in the router’s PIC bay 0 or PIC bay 1.  
Asynchronous Ports The two asynchronous serial ports can be used as general purpose ports for  
terminals, printers or modems. They are effectively identical and can be  
independently configured. The default communications settings are:  
9600 bps  
8 data bits  
1 stop bit  
no parity  
hardware flow control  
PAC Slot AT-AR745 routers have a single PAC slot inside the chassis. When installed,  
PACs provide hardware-based encryption and or compression capability via a  
PCI interface. For information on PACs, including a list of compatible PACs,  
Caution PACs should only be installed by authorised service  
personnel. Unauthorised opening of the router lid may cause danger of  
injury from electric shock, damage to the router, and invalidation of  
the product warranty.  
!
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Hardware Reference  
13  
Power Supply  
The AT-AR745 is available in two power supply configurations: a universal AC  
model and a 48 V DC model. The AC model includes an inlet for the  
AR740 RPS (Redundant Power Supply). The AR740 RPS can be purchased  
separately, and each unit supports up to two AT-AR745 or AT-AR725 routers.  
AT-AR745 AC AC models of the AT-AR745 have a universal AC input connector and a power  
switch on their rear panels. A DB25 connector for an optional external  
Redundant Power Supply (RPS), such as the AR740 RPS, is also located on the  
rear panel.  
Pin outs for the DB25 RPS connector, and cable specifications for RPS supply  
The router can monitor the PSU and the fan in both the router and the RPS. See  
AT-AR745-80 DC The AT-AR745-80, designed for use by telecommunication carrier sites,  
supports connection to a 48 V DC power supply (in the range 39 V to 59 V DC).  
The DC model does not support an RPS connection, and does not support  
monitoring of the main PSU or fan.  
DC supply cable specifications:  
Number of wires (cores): 3  
2
Minimum size: 2.1 mm (14 AWG)  
Minimum cable rating: 600 V, 90 degrees Celsius  
DC power supply specifications:  
48 V DC (38 V to 60 V DC is acceptable)  
Either positive grounded or negative grounded  
Figure 5: DC Power inlet terminals on an AR745  
FOR CENTRALIZED DC  
POWER CONNECTION,  
INSTALL ONLY IN A  
3
1
RESTRICTED AREA  
DC POWER  
38-60 VDC  
, 2 A  
Safety Safety information and instructions outlining how to connect an AT-  
AR745-80 to a DC power supply can be found in the AR700 Series Router  
Installation and Safety Guide. You should read these instructions before  
attempting to connect the router to a DC power supply.  
Caution Some interfaces that may be installed in the router are not  
transformer isolated. This means they will be referenced to the frame  
ground of the equipment and may be damaged if connected to an  
interface on another piece of equipment which is at a different ground  
potential.  
!
C613-03087-00 Rev E  
 
 
14  
AR700 Series Router  
Redundant Power AC models of the AT-AR745 can be used in conjunction with the AR740 RPS.  
Each AR740 RPS can provide power supply and mains circuit redundancy for  
up to two AT-AR745s or AT-AR725s. For more information on the AR740 RPS,  
Supply (RPS)  
For connection to an AR740 RPS, the AT-AR745 router has a female DB25  
connector on its rear panel (Figure 6). Pin outs for the connector are listed in  
Figure 6: DB25 female connector pinout for an RPS on the AT-AR745 rear panel  
Pin 13  
Pin 1  
Pin 14  
Pin 25  
A740db25  
Table 3: DB25 RPS power connector pin out on the AT-AR745  
Pin  
Function  
Keying  
Direction  
-
1, 25  
2, 14  
+12 V  
input  
3-5, 15-17  
+5 V  
input  
6-8, 18-20  
0 V  
input  
9
-12 V  
input  
10  
11  
12  
13  
21  
22  
23  
24  
VCC  
output  
output  
output  
input  
Main PSU error  
Main fan error  
RPS disconnected  
Sense 0 V  
Sense +5 V  
RPS PSU error  
RPS fan error  
output  
output  
output  
input  
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Hardware Reference  
15  
AR745 LEDs and what they mean  
Functions of the AR745’s LEDs are shown in the following table. Additional  
rear panel LEDs may be present if a PIC or NSM is installed. Functions of PIC  
and NSM LEDs are described in their respective Hardware References.  
LED  
Function  
Front panel  
Rear panel  
These LEDs give indications about the Ethernet interfaces.  
ETH  
LNK/ACT  
Lit green when the Ethernet interface is connected to a device (e.g., a hub) which is  
generating link pulses. Lit yellow indicates transmission or reception activity.  
100M  
PIC0/PIC1  
BASE  
PWR  
Lit when the Ethernet interface is in 100 Mbps mode.  
Lit when a PIC is inserted in either PIC bay 0 or PIC bay 1 (one LED for each PIC).  
These LEDs indicate the state of the main router unit.  
Power  
Run  
Lit when power is supplied and the router is switched on.  
RUN  
Lit when the internal processor is executing code. If the processor stops for any reason  
(a fault condition), then the LED will not be lit.  
System  
SYS  
Lit when the router or management software is malfunctioning. Flashes to indicate fan,  
PSU, and RPS faults.  
1 Flash: A router fan has failed.  
2 Flashes: If an RPS is connected and RPS monitoring is enabled, an RPS fan has failed.  
3 Flashes: If an RPS is connected, the routers PSU (Power Supply Unit) has failed.  
4 Flashes: If RPS monitoring is enabled, the RPS PSU has failed.  
5 Flashes: If RPS monitoring is enabled, an RPS is not connected or is not operational  
Security  
SEC  
Lit when a user is logged in with SECURITY OFFICER privilege and the router is in  
SECURITY MODE.  
Activity  
Lit when the compact flash card is accessed.  
(Compact Flash)  
Do not remove the compact flash card when the LED is lit.  
These LEDs give indications about a PCI Accelerator Card (PAC), which can be installed  
for encryption and/or compression purposes.  
ENGINE  
ACT  
DAT  
ERR  
CLR  
Lit when a PAC is installed in the PAC slot.  
Lit when data is transferred to or from the PAC.  
Lit when there is an error in the data transmission to or from the PAC.  
Clear  
Lit when a secure router has enabled PPP interfaces or Frame Relay circuits that are  
configured to send clear text.  
These LEDs give indications about an NSM installed in the router.  
NSM  
Swap  
Lit when the NSM and its PICs are powered down and can be hot swapped. Only lights  
if the Hot Swap button has been pressed and the software version supports hot  
swapping  
1.  
In Use  
Lit when an NSM is correctly installed. If the software version supports hot swapping,  
it indicates that the NSM and its PICs are powered up and may not be swapped.  
1. AT-AR021 (S) BRI-S/T, AT-AR021 (U) BRI-U, AT-AR022 ETH, AT-AR023 SYN, and AT-AR026 4ETH PICs can be hot swapped.  
The AT-AR745 router automatically monitors its own power supply and fan,  
and has the option of a redundant power supply. If a redundant power supply  
(RPS) is attached, the AT-AR745 software can detect the presence of the RPS  
and the state of its output voltages and fan. RPS monitoring, turned off by  
default, can be turned on or off using the command:  
set system rpsmonitor={on|off}  
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16  
AR700 Series Router  
The show system command displays the state of the main power supply and  
fan, and whether or not the RPS is being monitored. If RPS monitoring is  
enabled, it also shows whether an RPS is connected, and the state of its output  
voltage and fan.  
When a fault occurs in the main power supply or fan, system LEDs on the  
AT-AR745’s front and back panels are flashed in a pattern that identifies the  
fault. If RPS monitoring is enabled, the system LEDs also flash to indicate  
failures in the RPS connection, power supply or fan. Multiple faults are  
indicated by cycling through each error code.  
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Hardware Reference  
17  
AR750S Router  
The AT-AR750S router has two 10/100 autonegotiating Ethernet (eth) ports,  
one asynchronous RS-232 port, five Ethernet switch ports, and two Port  
Interface Card (PIC) expansion bays.  
Figure 7: Front and rear panels of the AT-AR750S router  
Front Panel  
AR750S Secure VPN Router  
ETHERNET  
1
SWITCH PORTS  
4
2
PIC1  
PIC0  
CONSOLE  
STATUS  
PWR  
ETHERNET  
SWITCH PORTS  
PIC  
1
L/A  
L/A  
D/C  
D/C  
SYS  
0
1
1
2
3
4
5
0
0
1
3
5
ASYN0  
PIC BAYS  
Status  
LEDs  
Eth  
LEDs  
PIC  
LEDs  
Eth  
ports  
Asynchronous  
port  
PIC bays  
Switch  
ports  
Switch  
port LEDs  
Rear Panel  
Fan  
vent  
Power  
inlet  
Power  
switch  
Hardware Features  
The main hardware features of the AT-AR750S are:  
533 MHz PowerPC processor  
64 MBytes of synchronous DRAM  
16 MBytes of on-board flash memory, (1 MByte reserved for boot code)  
High performance security engine (used for IPSec, SSL, 3DES, AES)  
2 x 10/100 Mbps autonegotiating full duplex Ethernet (eth) ports  
5 x 10/100 Mbps autonegotiating full duplex switch ports  
1 RS-232 asynchronous DTE console port, with RJ45 connector  
2 PIC bays  
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18  
AR700 Series Router  
Asynchronous port The asynchronous serial port (ASYN0) provides a general purpose port for  
terminals, printers or modems. The port is wired as a DTE (Table 9 on  
page 50). The default communications settings are:  
9600 bps  
8 data bits  
1 stop bit  
no parity  
hardware flow control  
PIC bays The AT-AR750S chassis has two PIC bays, which can accommodate  
combinations of the following PICs:  
AT-AR020 PRI E1/T1 PIC, one primary rate E1/T1 port.  
AT-AR021(S) BRI-S/T PIC, one basic rate ISDN S/T port.  
AT-AR023 SYN PIC, one synchronous port with universal 50-way  
AMPLIMITE connector.  
AT-AR024 ASYN4 PIC, four asynchronous ports with RJ-45 connectors.  
Power Supply  
The AT-AR750S has a universal AC input connector and a power switch on its  
rear panel. It operates with an input voltage in the range 100 VAC to 240 VAC.  
C613-03087-00 Rev E  
 
 
Hardware Reference  
19  
AR750S LEDs and what they mean  
Functions of the AR750S LEDs are shown in the following table. Additional  
LEDs may be present if a PIC is installed. Functions of PIC LEDs are described  
in the Port Interface Card Hardware Reference.  
LED  
State  
Green  
Off  
Function  
Power/PWR  
System/SYS  
The router is receiving power and the power switch is ON.  
Normal operation.  
Amber  
Lit briefly during router startup, or the router is  
malfunctioning.  
Flashing  
There is a fault. To check the routers fan speed,  
temperature, and internal voltages, use the show system  
command.  
1 flash  
The router fan has failed.  
3 flashes  
6 flashes  
There is an internal power supply fault in the router.  
The router temperature is too high or too low. Put the  
router in a location that will maintain an ambient  
temperature range of 0 ºC to 50 ºC (32 ºF to 122 ºF), with  
adequate airflow around the router and its vents.  
PIC0  
PIC1  
Green  
A port interface card (PIC) is correctly installed and has  
been detected by the router.  
ETH0 / ETH1  
L/A  
Green  
The Eth port has a 100 Mbps link.  
The Eth port has a 10 Mbps link.  
Amber  
Flashing  
Green  
Data is being transmitted on the Eth port.  
The Eth port is operating at full duplex.  
The Eth port is operating at half duplex.  
There is a collision on the Eth port.  
ETH0 / ETH1  
D/C  
Amber  
Amber  
flashing  
PORT 1..5  
L/A  
Green  
The switch port has a 100 Mbps link.  
The switch port has a 10 Mbps link.  
Data is being transmitted on the switch port.  
The switch port is operating at full duplex.  
The switch port is operating at half duplex.  
Collision on the switch port.  
Amber  
Flashing  
Green  
PORT 1..5  
D/C  
Amber  
Amber  
flashing  
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20  
AR700 Series Router  
AR750S-DP Router  
The AT-AR750S-DP router has two 10/100 Mbps autonegotiating Ethernet  
(eth) ports, one asynchronous RS-232 port, five 10/100 Mbps Ethernet switch  
ports, and two Port Interface Card (PIC) expansion bays.  
The AT-AR750S-DP uses AT-PWR03 dual hot-swappable power supplies  
(PSUs). You can install either AC or DC PSUs.  
Figure 8: Front and rear panels of the AT-AR750S-DP router  
Front Panel  
ETHERNET  
1
SWITCH PORTS  
4
CONSOLE  
2
AR750S-DP Secure VPN Router  
PIC1  
PIC0  
STATUS  
2
ETHERNET  
L/A  
SWITCH PORTS  
PIC  
1
PSU  
PSU  
L/A  
D/C  
D/C  
1
SYS  
0
1
1
2
3
4
5
0
RESET  
0
1
3
5
ASYN0  
PIC BAYS  
Eth  
LEDs  
PIC  
LEDs  
Switch  
ports  
PIC  
bays  
Reset  
button  
Status  
LEDs  
Eth  
ports  
Switch  
port LEDs  
Asynchronous  
port  
Rear Panel  
PSU Bay Two (PWR03 DC installed)  
PSU Bay One (PWR03 DC installed)  
PSU  
2
AT-PWR03  
AT-PWR03  
DC Power Supply  
DC Power Supply  
40-60VDC  
,
2.0A  
40-60VDC  
,
2.0A  
PSU  
1
CAUTION: DISCONNECT ALL POWER AT SOURCE TO DISABLE SYSTEM POWER  
CAUTION: DISCONNECT ALL POWER AT SOURCE TO DISABLE SYSTEM POWER  
Run/standby switch  
(DC PSU only)  
Power  
inlet  
Hardware Features  
The main hardware features of the AT-AR750S-DP are:  
533 MHz PowerPC processor  
64 MBytes of synchronous DRAM  
16 MBytes of on-board flash memory, (1 MByte reserved for boot code)  
2 x 10/100 Mbps autonegotiating full duplex Ethernet (eth) ports  
5 x 10/100 Mbps autonegotiating full duplex switch ports  
1 RS-232 asynchronous DTE console port, with RJ45 connector  
2 PIC bays  
High performance security engine (used for IPSec, SSL, 3DES, AES)  
2 PSU bays compatible with dual hot-swappable, load sharing PSUs  
Reset button  
C613-03087-00 Rev E  
 
   
Hardware Reference  
21  
Asynchronous port The asynchronous serial port (ASYN0) provides a general purpose port for  
terminals, printers or modems. The port is wired as a DTE (Table 9 on page 50).  
The default communications settings are:  
9600 bps  
8 data bits  
1 stop bit  
no parity  
hardware flow control  
PIC bays The AT-AR750S-DP chassis has two PIC bays, which can accommodate  
combinations of the following PICs:  
AT-AR020 PRI E1/T1 PIC, one primary rate E1/T1 port.  
AT-AR021(S) BRI-S/T PIC, one basic rate ISDN S/T port.  
AT-AR023 SYN PIC, one synchronous port with universal 50-way  
AMPLIMITE connector.  
AT-AR024 ASYN4 PIC, four asynchronous ports with RJ-45 connectors.  
Restart with default To restart the router with the default configuration, either press the Reset  
button on the front panel of the router, or use the command:  
configuration  
restart router config=none  
This immediately restarts the router with the default configuration specified in  
the boot.cfgfile. The factory-loaded default configuration is shown in the  
Installation and Safety Guide. If the file has been removed, the router restarts  
with no configuration. We recommend leaving boot.cfgunchanged, so that  
you can revert to the original configuration if necessary.  
To return the router to the previous user configuration, restart the router by  
using the command:  
restart router  
This restarts the router with the startup configuration file previously specified  
by the command:  
set config=filename  
The restart reboot command or a power cycle also reload this user  
configuration. For information about configuration files, see the Managing  
Configuration Files and Software Versions chapter in the Software Reference.  
AT-PWR03 Power Supplies  
The AR750S-DP comes with the option of installing one or two AT-PWR03  
power supplies. When two are fitted, they must be the same type of current,  
either both AC or both DC.  
The AR750S-DP should use only the AT-PWR03 power supply. Do not use any  
other power supply to power this router.  
You can create triggers to execute scripts when specific PSU events occur. For  
more information, see the Trigger Facility chapter in the AR700 Series Router  
Software Reference.  
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22  
AR700 Series Router  
Safety Safety information and instructions outlining how to use an AT-PWR03  
AC or DC power supply can be found in the AR750S-DP Router Installation and  
Safety Guide. Read these instructions before attempting to install, remove or  
power an AT-PWR03.  
Hardware overview The AT-PWR03 power supplies are hot-swappable and load share.  
Dimensions:  
Height: 40.9 mm  
Width: 193 mm  
Depth: 130 mm  
AC models:  
Universal 100 VAC to 240 VAC, 50 Hz to 60 Hz input  
Maximum continuous current draw: 1.6 A at 100 V, 1 A at 230 V  
Maximum inrush current (cold start at 25 ºC/77 ºF): 50 A at 240 V, 25 A  
at 115 V  
DC models:  
40 V to 60 V, 48 V nominal  
Supports either positive grounded or negative grounded operation  
Maximum continuous current draw: 2 A at 40 V  
Maximum standby current: 100 mA  
Run/standby switch  
C613-03087-00 Rev E  
 
Hardware Reference  
23  
AR750S-DP LEDs and what they mean  
Functions of the AR750S-DP LEDs are shown in the following table. Additional  
LEDs may be present if a PIC is installed. Functions of PIC LEDs are described  
in the Port Interface Card Hardware Reference.  
LED  
State  
Function  
Status PSU 1..2 Green  
The router is ON, and is receiving power from the PSU  
indicated by the LED.  
Amber  
There is a fan or power fault.  
Normal operation.  
Status/SYS  
Off  
Amber  
Lit briefly during router startup, or if the router is  
malfunctioning.  
Flashing  
There is a fault. To check the routers fan speed,  
temperature, and internal voltages, use the show  
system command.  
3 Flashes  
6 Flashes  
7 Flashes  
There is an internal power supply fault in the router.  
The router temperature is too high or too low.  
The router has both an AC and a DC power supply  
connected to it. The router only supports dual power  
supplies when the PSUs have the same current type.  
ETH0 / ETH1  
L/A  
Green  
The Eth port has a 100 Mbps link.  
Amber  
Flashing  
Green  
The Eth port has a 10 Mbps link.  
Data is being transmitted or received on the Eth port.  
The Eth port is operating at full duplex.  
The Eth port is operating at half duplex.  
ETH0 / ETH1  
D/C  
Amber  
Amber flashing There is a collision on the Eth port.  
PORT 1..5  
L/A  
Green  
The switch port has a 100 Mbps link.  
The switch port has a 10 Mbps link.  
Amber  
Flashing  
Data is being transmitted or received on the switch  
port.  
PORT 1..5  
D/C  
Green  
The switch port is operating at full duplex.  
The switch port is operating at half duplex.  
Amber  
Amber flashing There is a collision on the switch port.  
Green A port interface card (PIC) is correctly installed and has  
been detected by the router.  
PIC0  
PIC1  
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24  
AR700 Series Router  
AR770S Router  
The AT-AR770S Secure VPN Router provides gigabit Ethernet and switch  
ports, and can accommodate optional fibre-optic SFPs (small form-factor  
pluggable modules) and Port Interface Cards (PICs).  
Figure 9: Front and rear panels of the AT-AR770S router  
Switch  
port LEDs  
Switch  
ports  
SFP Eth  
ports  
Front Panel  
ETHERNET  
1
SWITCH PORTS  
CONSOLE  
1
2
4
AR770S Secure VPN Router  
PIC1  
PIC0  
STATUS  
PWR  
ETHERNET  
10/100/1000  
SWITCH PORTS  
10/100/1000  
PIC  
1
SFP  
L/A  
L/A  
D/C  
D/C  
SYS  
0
1
0
1
1
2
3
4
0
0
0
1
3
ASYN0  
Status  
LEDs  
PIC  
LEDs  
Asynchronous  
port  
10/100/1000  
Eth LEDs  
10/100/1000  
Eth ports  
PIC  
bays  
SFP Eth LEDs  
Rear Panel  
POWER  
ON  
OFF  
100-240 VAC  
50/60 Hz  
2.1  
A
Fan  
vent  
Power  
inlet  
Power  
switch  
Hardware Features  
The main hardware features of the AT-AR770S are:  
833 GHz PowerPC processor  
128 MBytes of synchronous DRAM  
512 kBytes of battery-backed SRAM (NVS)  
32 MBytes of on-board flash memory, (1 MByte reserved for boot code)  
High performance security engine (used for IPSec, SSL, 3DES, AES)  
2 autonegotiating full duplex Eth ports — each port may be either  
10/100/1000 Base T, or SFP sockets for fibre-optic SFPs  
4 autonegotiating 10/100/1000 Mbps full duplex switch ports  
1 RS-232 asynchronous DTE console port, with RJ-45 connector  
2 PIC bays  
C613-03087-00 Rev E  
 
   
Hardware Reference  
25  
Asynchronous port  
The asynchronous serial port (ASYN0) is wired as a DTE (Table 9 on page 50),  
and can be used as general purpose port for terminals, printers or modems.  
The default communications settings are:  
9600 bps  
8 data bits  
1 stop bit  
no parity  
hardware flow control  
Ethernet SFP sockets  
The router has two eth interfaces (labelled Ethernet): eth0 (labelled 0) and eth1  
(labelled 1). Each Eth interface has two connectors — an RJ-45 connector for a  
10/100/1000 Mbps copper connection, and an SFP socket for a fibre-optic SFP.  
Only one of these can be operational at once. When an SFP transceiver is  
installed, the corresponding 10/100/1000 Eth port is disabled. When the SFP is  
removed, the RJ-45 port is again operational.  
Figure 10: Eth1 SFP and 10/100/1000 options  
eth1 SFP port  
eth1  
eth1 10/100/1000  
ETHERNET  
SWITCH PO  
1
1
2
PIC  
1
A
C
0
0
0
1
Warning Do not look into SFP cables or transceivers. Disconnected  
fibres or connectors may emit invisible laser radiation, which can  
damage eyes.  
!
The Ethernet SFPs sockets support the following Small Form-factor Pluggable  
transceivers:  
AT-SPSX (previously AT-MG8SX)  
AT-SPLX10 (previously AT-MG8LX10)  
AT-SPZX80 (previously AT-MGZX)  
For more information about SFP transceivers, see “SFP Ports (AR770S only)”  
C613-03087-00 Rev E  
 
26  
AR700 Series Router  
PIC bays  
The AT-AR770S chassis has two PIC bays, which can accommodate  
combinations of the following PICs:  
AT-AR020 PRI E1/T1 PIC, one primary rate E1/T1 port  
AT-AR021(S) BRI-S/T PIC, one basic rate ISDN S/T port  
AT-AR023 SYN PIC, one synchronous port with universal 50-way  
AMPLIMITE connector  
AT-AR024 ASYN4 PIC, four asynchronous ports with RJ-45 connectors  
Power Supply  
The AT-AR770S has a universal AC input connector and a power switch on its  
rear panel. It operates with an input voltage in the range 100 VAC to 240 VAC.  
C613-03087-00 Rev E  
 
 
Hardware Reference  
27  
AR770S LEDs and what they mean  
The following table shows the functions of the AR770S LEDs. Additional LEDs  
may be present if a PIC is installed. Functions of PIC LEDs are described in the  
Port Interface Card Hardware Reference.  
LED  
State  
Green  
Off  
Function  
Status PWR  
Status SYS  
The router is receiving power and is switched ON.  
Normal operation.  
Amber  
Lit briefly during router startup, or when the router  
system is malfunctioning.  
Flashing  
There is a fault. To check the routers fan speed,  
temperature, and internal voltages, use the show  
system command.  
1 flash  
The router fan has failed.  
3 flashes  
6 flashes  
There is an internal power supply fault in the router.  
The router temperature is too high or too low. Put the  
router in a location that will maintain an ambient  
temperature range of 0 ºC to 50 ºC (32 ºF to 122 ºF),  
with adequate airflow around the router and its vents.  
Ethernet  
SFP 0..1  
Green  
The SFP Eth port has a 1000 Mbps link.  
Data is being transmitted or received.  
There is an SFP installed, but there is no link.  
Green flashing  
Amber  
L/A  
Amber flashing There is a transmission fault at this SFP port.  
Ethernet  
10/100/1000  
0..1  
Green  
The Eth port has a 1000 Mbps link.  
The Eth port has a 10 or 100 Mbps link.  
Data is being transmitted or received.  
Amber  
Flashing  
L/A  
Ethernet  
10/100/1000  
0..1  
Green  
The Eth port is operating at full duplex.  
The Eth port is operating at half duplex.  
Amber  
Amber flashing There is a collision on the Eth port.  
D/C  
Switch Ports  
10/100/1000  
1..4  
Green  
The switch port has a 1000 Mbps link.  
The switch port has a 10 or 100 Mbps link.  
Data is being transmitted or received  
Amber  
Flashing  
L/A  
Switch Ports  
10/100/1000  
1..4  
Green  
The switch port is operating at full duplex.  
The switch port is operating at half duplex.  
Amber  
Amber flashing There is a collision.  
D/C  
PIC 0..1  
Green  
A port interface card (PIC) is correctly installed and has  
been detected by the router.  
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28  
AR700 Series Router  
Online Documentation  
This section provides a step-by-step guide to accessing the documentation on  
the Documentation and Tools CD-ROM. Adobe Acrobat Reader must be  
installed to view the online documentation.  
To Access Documentation  
To use the CD-ROM, follow these steps:  
1. Insert your router’s Documentation and Tools CD-ROM in the CD-ROM drive.  
2. If the CD browser menu does not appear.  
Select "Run" from the Start Menu (Windows 98, 2000 or Windows XP).  
Type d:\start.exe (where d: is the CD-ROM drive letter) and click OK.  
3. To view a document.  
Click on the document title.  
4. To navigate around PDF documents.  
Use the toolbar buttons, keyboard shortcuts, or commands from the  
Document menu to page through the document.  
Click on a bookmark, thumbnail or hypertext link to jump to a specific  
section or topic.  
Use the Search command to search for keywords or phrases.  
For more information about using the Adobe Acrobat Reader, select  
"Reader Guide" from the Help menu.  
5. To install any of the tools included on the CD-ROM.  
Click on a link in the CD browser menu.  
C613-03087-00 Rev E  
 
   
Hardware Reference  
29  
AT-TFTP Server  
This section provides information on how to access and use AT-TFTP Server.  
AT-TFTP Server can be used to transfer configuration files as well as to  
download software patches and versions.  
To use AT-TFTP Server, follow these steps:  
1. If AT-TFTP Server has not yet been installed.  
Install it now from the your router’s Documentation and Tools CD-ROM.  
To install AT-TFTP server:  
Choose AT-TFTP Server from the Start > Programs > Allied Telesis >  
AT-TFTP Server menu.  
2. To set preferences for the AT-TFTP Server.  
Select "Options" from the File menu to display the "Set Preferences" dialog  
box.  
The "Default file transfer directory" field specifies the directory that AT-  
TFTP Server will read from or write to for file requests that do not include a  
directory specification.  
To prevent unauthorised access to private directories, enter a path name in  
the "Restrict to directory" field. AT-TFTP Server will use only the specified  
directory, even if file requests contain references to other directories.  
Select "Read only" to prevent files being written to the PC. To use the PC to  
archive router scripts created using the router's create config command,  
select "Read Write".  
Make any required changes and click "OK".  
3. To load a file from AT-TFTP Server to the router.  
On a terminal connected to the router, type the command:  
load method=tftp file=filename server=ipadd dest=flash  
where filename is the name of the file to download and ipadd is the IP  
address of the PC running AT-TFTP Server.  
4. To save a TFTP Server log.  
Select "Save As" from the File menu.  
C613-03087-00 Rev E  
 
 
30  
AR700 Series Router  
TFTP requests are logged to the AT-TFTP Server main window.  
Using Windows Terminal and  
Hyperterminal  
You can use a PC running terminal emulation software as the manager console,  
instead of a terminal. There are many terminal emulation applications  
available for PCs, but the most readily available are the Terminal and  
HyperTerminal applications included in Microsoft Windows 98, 2000, and  
XP Professional. In standard Windows installations, HyperTerminal is  
available from the Communications submenu.  
The key to successful use of terminal emulation software with the router is to  
configure the software and router with matching communications parameters.  
The following procedure can be applied to most terminal emulation programs.  
Dialog boxes in the procedure are from Windows 2000 and XP Professional.  
To configure Windows HyperTerminal for 2000 and XP Professional  
1. Start the program in Windows by doing one of the following:  
Select Programs > Accessories > Communications > HyperTerminal.  
Double-click the Hypertrm.exe icon.  
2. In the Connection Description dialog box:  
Enter a name for the connection, such as Admin.  
Select an icon from the scrollable list and click the OK button.  
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Hardware Reference  
31  
3. In the “Connect using” field on the Connect To dialog box, select the COM  
port on the PC used to connect to the router. and click the OK button.  
4. In the COMn Properties dialog box, set port parameters as follows, and click  
the OK button.  
C613-03087-00 Rev E  
 
32  
AR700 Series Router  
5. From the main HyperTerminal window, select Properties from the File  
menu. Click the Settings tab, and set the Properties dialog box as follows.  
6. Click ASCII Setup to display the ASCII Setup dialog box, and ensure the  
following options are not selected:  
Echo typed characters locally  
Append line feeds to incoming line ends  
Set other parameters as necessary and click the OK buttons on both dialog  
boxes to close them.  
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Hardware Reference  
33  
7. Save the current session by selecting Save from the File menu on the main  
HyperTerminal window. This creates a connection icon with the name you  
assigned in the HyperTerminal group.  
To use the configuration, double-click the connection icon. When the  
HyperTerminal window appears, press the Enter key several times; the  
router’s login prompt is then displayed.  
Router Start-up  
At start-up, the manager can choose to run either the software version stored in  
the flash boot block, or the software version in the flash file system specified by  
the installation parameters previously set using the set install command.  
All code is executed out of system RAM. At power-up the boot code is loaded  
from the flash boot block to RAM. The boot code checks the installation  
parameters then reloads RAM with the selected temporary, preferred, or default  
install version (stored in the flash file system) and runs this code.  
The version is uncompressed as it loads to RAM. This may take 10 to 30  
seconds. At this point, any required patches are loaded from the flash file  
system. Any patch is also uncompressed as it loads to RAM. This procedure  
ensures that the code runs at maximum speed, and allows updates to be made  
to the code. Updates can be downloaded over the network from a TFTP server  
and stored in the flash file system until required at power-up.  
To download software onto the router, see the Managing Configuration Files and  
Software Versions chapter in the Software Reference.  
All router software, patches, and configuration settings are stored as files in  
flash memory. Typically, the following files will be present in the flash file  
system:  
The current installed software version. Additional software versions may  
also be present.  
The current installed patch, if any. Additional patches may also be present.  
The command line help file for the command line interface (CLI). The  
command help is stored in a separate text file, with extension .hlp. The  
command help file is loaded with a software version.  
The boot configuration script boot.cfg. The boot script contains standard  
router commands (executed on start-up to configure the router).  
Additional user-defined configuration scripts containing commands to  
configure the router for different functions. These scripts are created using  
the built-in editor, the add script command (in the Scripting chapter of the  
Software Reference), or the create config command (in the Managing  
Configuration Files and Software Versions of the Software Reference).  
Other files required by the system.  
Configuration information is stored in flash memory as configuration scripts.  
These scripts contain standard router commands. When a configuration  
command is entered at the command prompt from a terminal, terminal  
emulation program, or Telnet session, the command alters the dynamic  
configuration only; this is not saved over a power cycle. To ensure that  
configuration changes resulting from such commands are retained across a  
C613-03087-00 Rev E  
 
 
34  
AR700 Series Router  
power cycle, the dynamic configuration must be saved as a configuration  
script, using the create config command.  
When the router starts up following either a power cycle or an operator-  
initiated reboot (using the restart command), it performs the following  
sequence of operations:  
1. Perform start-up self tests.  
2. Load the flash boot block version as the INSTALL boot into the router’s  
RAM.  
3. Prompt the manager for changes to the default start-up procedure:  
Force EPROM download (Y)?  
The manager may press one of the keys listed in Table 4 on page 35 to  
override the default installation procedure.  
4. Check the INSTALL information to determine which version to load and  
run, according to the INSTALL parameters, and the manager’s response to  
the previous prompt. If none of the keys in Table 4 on page 35 are pressed,  
the INSTALL parameters determine which version and patch are loaded  
and run.  
5. Load the required version specified by the INSTALL parameters from the  
flash file system as the main boot.  
6. Start the router.  
7. Execute the boot configuration script, if one has been configured. (The boot  
configuration script is either a configuration file set using the set config  
command from the Managing Configuration Files and Software Versions  
chapter, or the file boot.cfg file, if there is one.)  
A series of start-up messages is sent to asyn0 (the console or terminal port).  
Figure 11: Example of router start-up messages on an AR750S  
INFO: Self tests beginning.  
INFO: RAM test beginning.  
PASS: RAM test, 65536k bytes found.  
INFO: Self tests complete  
INFO: Downloading router software.  
Force EPROM download (Y) ?  
INFO: Initial download successful  
INFO: Initialising Flash File System.  
INFO: IGMP packet trapping is active for IGMP snooping, L3FILT  
is activated  
INFO: Executing configuration script <flash:boot.cfg>  
INFO: Router startup complete  
login:  
After the self tests are complete, the manager is given the option of forcing a  
mandatory boot from the flash boot block version. The following message is  
displayed on the terminal connected to the console port (asyn0) and the router  
pauses:  
Force EPROM download (Y)?  
If a key is not pressed within a few seconds, the start-up process continues and  
all steps in the start-up sequence are executed. Pressing selected keys on the  
terminal immediately after the “Force EPROM download” message is  
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35  
displayed changes the router start-up process as described in the following  
table.  
Table 4: Router start-up sequence keystrokes  
Pressing key... Forces the router to...  
(no key pressed) After a few seconds, the router startup process continues.  
[Y]  
Load the version, without any patches, from EPROM onto the RAM, and  
run the full version. Go to step 6.  
[S]  
Load and run the version and patch determined by the INSTALL  
parameters from the flash file system, ignoring any boot script or any  
previous configuration stored in NVS.  
[N]  
Load from flash to RAM the version and patch determined by the INSTALL  
parameters, and run using the current configuration stored in NVS (if  
any), ignoring any boot script.  
During the start-up process the router generates four different types of  
messages. All messages are preceded by one of the words INFO, PASS, FAIL,  
or ERROR. The meaning of these words in the context of the messages is  
shown in the following table.  
Table 5: Router start-up message classes  
Message  
INFO  
Meaning  
An informational message that an action has been taken by the system.  
An informational message that a test has been completed successfully.  
PASS  
ERROR  
An error message that a test has failed, but the system will continue to  
operate.  
FAIL  
An error message that a fatal error condition has caused the system to  
halt in an unrecoverable fashion.  
WARNING  
A serious error has occurred, which may indicate hardware failure.  
The possible messages and their meanings are:  
INFO: Self tests beginning.  
The code loader tests are about to begin.  
INFO: RAM test beginning.  
The RAM tests are about to begin.  
PASS: RAM test, 65536k bytes found.  
The RAM test passed, and the indicated amount of memory was found  
and will be used in the router.  
ERROR: RAM test 5. Error address = 00345678.  
A RAM test failed, at the given address. In the example, it was the fifth  
test run. The RAM test repeats until it passes, so a number of messages  
like this may appear. This fault means that the memory system is faulty.  
If the fault continues, contact your distributor or reseller immediately.  
INFO: BBR tests beginning.  
The BBR tests are about to begin.  
PASS: BBR test. Battery OK.  
The BBR battery test passed.  
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AR700 Series Router  
ERROR: BBR Battery low.  
The BBR battery test failed, indicating that the battery is running low.  
The BBR system will need to be replaced. Contact your distributor or  
reseller.  
PASS: BBR test, 256k bytes found.  
The BBR size/location test passed, with the indicated amount of BBR  
found.  
FAIL: BBR test. Error address = 12345678.  
The BBR size/location test failed at the given location. The test at this  
location failed, indicating the end of memory, but a valid location was  
discovered in the 255 long words following this location. The BBR  
system will need to be replaced. Contact your distributor or reseller.  
FAIL: BBR test, only 16k bytes found.  
The BBR size/location test completed, but only the displayed amount  
of memory was found. This amount is less than the minimum required  
to run the router software.  
INFO: Self tests complete.  
The start-up tests have finished.  
INFO: Downloading router software.  
The process of downloading the router software and vector table from  
ROM is about to begin.  
ERROR: Code load retried.  
FAIL: Code load failed.  
The load of the code from ROM to RAM failed. The load is retried a  
number of times. Each time a failure occurs the ERROR message is  
displayed. If the maximum number of attempts is reached, the FAIL  
message is displayed.  
ERROR: Vector load retried.  
FAIL: Vector load failed.  
The load of the vector table from ROM to RAM failed. The load is  
retried a number of times. Each time a failure occurs the ERROR  
message is displayed. If the maximum number of attempts is reached,  
the FAIL message is displayed. Contact your authorised distributor or  
reseller.  
INFO: Initial download successful.  
The start-up tests and download from ROM are complete, and the  
router software is about to be started. It takes a few seconds to  
decompress the software version.  
INFO: Downloading compressed release. This may take up to 1  
minute...  
INFO: Loading software into memory. This may take up to 1  
minute...  
The main router software is about to be loaded into RAM. If the version  
is a compressed version, the version will be decompressed.  
FAIL: Unexpected exception. Offset = 40, Addr = 0100045e.  
An unexpected exception occurred while the start-up was executing.  
The vector offset and the program counter when the exception occurred  
are given in the message. Contact your distributor or reseller.  
INFO: Executing configuration script <script-name>  
The configuration commands stored in <script-name> are being  
executed. If an error is found in the script, one or more ERROR  
messages will be displayed.  
INFO: Router startup complete.  
The start-up process is complete and the router is now operational.  
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INFO: Initialising Flash (This may take some time)  
The flash file system was found to be corrupt. The router is now re-  
initialising the flash device to a "good" state. The process will take at  
least 4 minutes, depending on the router.  
INFO: IGMP Snooping is activated.  
IGMP snooping has been enabled.  
INFO: IGMP packet trapping is active for IGMP snooping, L3FILT  
is activated  
IGMP snooping has been enabled.  
WARNING: IGMP Snooping not active, failed to enable ports.  
The IGMP snooping could not be activated on the switch ports. This  
may indicate a hardware failure. Contact your authorised Allied Telesis  
distributor or reseller.  
ERR: Error (3035012): Parameter "<keyword>" not recognised.  
ERR: Error (3035012): Parameter "firewall" not recognised.  
The configuration file contains commands not recognised by the  
software version that is loaded. In the example above, the configuration  
file contains commands to configure a firewall, but the software does  
not include the firewall feature - it may be the minimal boot version.  
Memory  
The routers have memory in the form of:  
Random Access Memory (RAM)  
The routers use RAM to run software for router operations, and to store the  
router’s dynamic configuration.  
The AR725 and AR745 routers have 128 MB of SDRAM on a DIMM and can be  
upgraded. Contact your authorised Allied Telesis distributor or reseller for  
upgrade options. Other supplier’s DIMMs are not approved, not supported,  
and may not function correctly.  
Warning DIMMs should be installed by authorised service personnel  
only. Unauthorised opening of the router lid may cause danger of  
injury from electric shock, damage to the router, and invalidation of  
the product warranty.  
!
The AR750S and AR750S-DP routers have 64 MB of DDR SDRAM, and cannot  
be upgraded.  
The AR770S has 128 MB of DDR SDRAM, and cannot be upgraded.  
To check the amount of RAM present in a router, use the command:  
show system  
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AR700 Series Router  
This will produce a display like that shown in Figure 12. The DRAM and  
FLASH fields show the amounts of DRAM and flash memory, respectively.  
Figure 12: Example output from the show system command  
Router System Status  
Time 10:59:39 Date 23-Mar-2006.  
Host Id Rev Serial number  
Board  
ID Bay Board Name  
--------------------------------------------------------------------------------  
Base  
PIC  
241  
AT-AR750S  
0 M1-0 ATR00434  
0 M3-0 50200528  
38 0 AT-AR023-00 PIC Sync  
--------------------------------------------------------------------------------  
Memory - DRAM : 65536 kB  
Chip Revisions -  
FLASH : 16384 kB  
<U123:4567> <U23:456> <U23:5566> <U098:765>  
--------------------------------------------------------------------------------  
SysDescription  
Allied Telesis AR750S version 2.7.6-00 11-Mar-2006  
SysContact  
David Johns, ext 8331  
SysLocation  
Laboratory, First Floor, Head Office Building  
SysName  
LAB  
SysDistName  
SysUpTime  
510 ( 00:00:05 )  
Boot Image  
: 55_276.fbr size 732308 10-Mar-2006  
Software Version: 2.7.6-00 11-Mar-2006  
Release Version : 2.7.6-00 11-Mar-2006  
Patch Installed : NONE  
Territory  
Country  
: europe  
: none  
Help File  
: help.hlp  
Main Fan  
: On  
Temperature  
: 30 Celsius  
Main Fan Speed : 4500 RPM  
Voltage Status ( Rail : Read )  
1.2V : 1.17V 2.5V : 2.54V 3.3V : 2.98V  
5.0V : 4.84V 12.0V : 11.78V  
Battery voltage : 3.14V  
Configuration  
Boot configuration file: flash:boot.cfg (exists)  
Current configuration: flash:boot.cfg  
Security Mode : Disabled  
Warning (2048284): No patches found.  
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39  
Battery-Backed RAM (AR725, AR745, AR770S  
only)  
The AR725 and AR745 have 128 kB of battery-backed SRAM as NVS (non-  
volatile storage), and the AR770S has 512 kB. The router can store files such as  
logs and configuration scripts in NVS over a power cycle.  
Onboard Flash Memory  
Flash memory is a nonvolatile reprogrammable memory storage device for  
router software versions, allowing upgrades to be remotely loaded from any  
WAN or LAN port. Flash memory is also used to store other types of data such  
as patches, logs and configurations.  
There are two types of flash—onboard flash (flash connected directly to the  
router’s PCB and available on all routers), and CompactFlash (flash provided  
by removable compact flash cards). All the routers have onboard flash  
memory; AR725 and AR745 routers also have a slot for compact flash cards.  
Of the router’s onboard flash memory, 1 MB is reserved for the flash boot  
version. You can use the rest to store files in the flash file system, such as a  
software version file, GUI resource file, configuration scripts and command  
line help file. The router also stores system files in the flash file system.  
Testing Onboard Flash Memory  
There are several ways to check that onboard flash memory is installed and  
operating correctly. First, check that the router has recognised the flash  
memory, using the command:  
show system  
to display system information (Figure 12 on page 38). The second part of the  
display shows the types and sizes of memory installed in the router. If the flash  
memory size is lower than expected, then the router’s boot process has not  
correctly detected or recognised the flash memory’s presence. If recognition  
fails, contact your authorised Allied Telesis distributor or reseller.  
If the flash is recognised, enter the command:  
show flash physical  
to display flash memory size, device type and location.  
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AR700 Series Router  
Figure 13: Example output from the show flash physical command for an AT-AR750S  
total size ............ 16 MBytes  
available to FFS ... 15 MBytes  
available to boot .. 1 MBytes  
device type ........... 28F128  
devices ............... 1  
location .............. built in  
programming power ..... off  
block erase time ...... 1000 milliseconds  
total erase blocks .... 128  
FFS erase blocks ... 120  
Boot erase blocks .. 8  
erase block size ...... 128 kBytes  
erase bit state ....... 1  
page buffers .......... 1  
size of page buffer ... 32 bytes  
Manager >  
Lastly, the Flash File System (FFS) can be checked to ensure that it has  
successfully formatted the flash, using the command:  
show file  
If flash memory has been used in the past then it may already be formatted and  
contain files. With erased or new flash memory that has been correctly  
formatted, an 80 byte hidden system file is present. A typical display for an FFS  
is shown in Figure 14.  
Figure 14: Example output from the show file command for an AT-AR750S  
Filename  
Device  
Size  
Created  
Locks  
-------------------------------------------------------------------------  
55-271a.rez  
55-273.rez  
config.ins  
feature.lic  
isdn.scp  
longname.lfn  
boot.cfg  
ppp.cfg  
flash  
flash  
flash  
flash  
flash  
flash  
flash  
flash  
flash  
flash  
flash  
3796816 11 Jan-2005 13:58:28  
3798416 11-Jun-2005 16:50:45  
0
0
0
0
0
0
0
0
0
0
0
32  
13-Dec-2004 09:37:32  
01-Dec-2004 09:45:51  
09-Dec-2004 15:38:50  
23-Dec-2004 10:59:34  
30-Nov-2004 11:36:03  
01-Dec-2004 10:14:28  
14-Dec-2004 16:25:47  
21-Dec-2004 12:14:24  
30-Nov-2004 11:26:54  
39  
1575  
17  
2769  
2819  
64  
prefer.ins  
random.rnd  
release.lic  
3904  
32  
-------------------------------------------------------------------------  
A complete test of flash memory may also be carried out by authorised support  
personnel using the router’s built-in diagnostics. See “Diagnostics” on page 60  
for more information.  
Caution The diagnostics flash memory test erases the entire flash  
contents.  
!
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CompactFlash (AR725, AR745 only)  
AR725 and AR745 routers have a CompactFlash slot on their front panel.  
Compact flash cards increase the flash memory available for file storage.  
CompactFlash files can be manipulated using the command line interface. Any  
type of data, including versions, patches, GUIs and configurations can be  
stored on compact flash cards. However, version, patch, and GUI files cannot  
be run directly from CompactFlash. These files must be loaded into either NVS  
or onboard Flash.  
Caution Data contained on compact flash cards can be read with any  
compliant reader. Do not keep sensitive data, for example security  
keys, on compact flash cards.  
!
The AT-CF128A 128 MB CompactFlash card has been approved for use with  
the AR725 and AR745 routers. For the latest approved compact flash cards, see  
the datasheet for your router at www.alliedtelesis.com . Only use approved  
CompactFlash cards. Using other cards may result in data loss.  
Installing and removing a compact flash card  
Compact flash cards can be inserted into the CompactFlash slot at any time.  
CLI messages are displayed when a card is inserted or removed. It takes  
approximately two seconds for an inserted card to be initialised. Messages  
notify the user when a card has been inserted:  
Info (1106257): Compact flash card inserted.  
and when the card is ready for use:  
Info (1106268): Compact flash card initialisation successful.  
A message notifies the user if the compact flash card is not compatible with the  
router:  
Info (3106300): Compact flash card initialisation  
unsuccessful.  
When CompactFlash is in use, the CompactFlash Activity LED on the front  
panel of the router is green.  
Caution Do not remove the compact flash card when it is being  
written to (that is, when the CompactFlash Activity LED is lit). Doing  
so will corrupt data on the file being written.  
!
Testing CompactFlash  
To display information about the basic state of a compact flash card, including  
card size, file count and serial number, insert the card and enter the command:  
show cflash  
To display cluster ranges on a card, insert the card and enter:  
show cflash test  
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AR700 Series Router  
Figure 15: Sample output from the show cflash test command, when no test is running  
Clusters available for testing  
Ranges:  
[42645--61944]  
Number of free clusters = 19300  
Number of ranges  
= 1  
Number of used clusters = 42645  
To test a card, insert the card and enter:  
enable cflash test start=startnumber end=endnumber  
where startnumber and endnumber are positive integers within a cluster range.  
The endnumber must be higher than the startnumber. Cluster ranges are  
displayed in the output of the show cflash test command (Figure 15).  
The test software will read the file allocation table and display a list of free  
sectors. Sectors can be tested as single sectors or as a range. The test will consist  
of a write/read/verify cycle.  
To stop the test, use the command:  
disable cflash test  
To display the testing process while a test is in process, enter:  
show cflash test  
Figure 16: Sample output from the show cflash test command, when a test is running  
Test Progress  
Starting cluster  
Ending cluster  
Current cluster  
= 700  
= 1700  
= 1185  
Passed clusters number  
Passed sectors number  
= 485  
= 1940  
Failed clusters number = 0  
Failed sectors number  
= 0  
Used Clusters encountered = 0  
Duration................ 4417 ms  
If used when testing is not active, the previous command displays blank  
cluster ranges on a compact flash card (Figure 15 on page 42).  
Error messages are displayed when a file write fails. Failure could be due to the  
card being removed or an error in the card.  
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Expansion Options  
Expansion options include:  
AR740 RPS Redundant Power Supply  
(AT-AR725, AT-AR745 only)  
Each AR740 RPS can provide power supply and mains circuit redundancy for  
up to two AC routers. The AR740 RPS cannot be used with DC versions of the  
routers. Figure 17 shows the AR740 RPS front and rear panels.  
Installation instructions for the AR740 RPS can be found in the AR740 RPS  
Quick Install Guide. This guide is packed with each AR740 RPS, or can be  
Figure 17: Front and rear panels of the AR740 RPS  
Front panel  
Rear panel  
AC POWER  
1
AC POWER  
2
RPS DC OUTPUT  
1
RPS  
AC Power  
ROUTER  
RPS DC OUTPUT  
2
AC Power  
AC Power  
100-240 VAC  
50-60Hz  
RPS Fan  
Fault  
Main PSU  
Fault  
RPS PSU  
Fault  
Main Fan  
Fault  
100-240 VAC  
50-60Hz  
1.5A  
On  
5V/6.5A  
12V/1.0A  
-12V/0.2A  
5V/6.5A  
12V/1.0A  
-12V/0.2A  
1
2
1.5A  
LEDs  
DC power outlets  
(DB25s)  
AC power  
supply inlets  
AC power  
supply switches  
DC supply cables Two DC supply cables are packed with each AR740 RPS. If making your own  
cable, use a cable that conforms to UL2464, and has at least twenty-three  
24 AWG cores. The cables will need a DB25 male connector on both ends and  
should be wired in a straight-through configuration. Pin outs for the  
connectors are listed in Table 6.  
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AR700 Series Router  
Figure 18: DB25 male pinout on the AR740 RPS  
Pin 1  
Pin13  
Pin 25  
Pin 14  
A740rpsp  
Table 6: DB25 RPS power connector pin out on AR740 RPS  
Pin  
Function  
Keying  
Direction  
1, 25  
-
2, 14  
+12 V  
output  
output  
output  
output  
input  
input  
input  
output  
input  
input  
input  
output  
3-5, 15-17  
+5 V  
6-8, 18-20  
0 V  
9
-12 V  
10  
11  
12  
13  
21  
22  
23  
24  
VCC  
Main PSU error  
Main fan error  
0 V  
Sense 0 V  
Sense +5 V  
RPS PSU error  
RPS fan error  
Specifications Dimensions  
Height = 44 mm (plus 5.5 mm if the rubber feet are used)  
Width = 440 mm (excluding rack-mounting brackets)  
Depth = 315 mm  
Weight = 3.75 kg  
Mounting System  
1U rack mounting  
Environmental Conditions  
Operating temperature range: 0 to 40 ºC (32 to 104 ºF)  
Storage temperature range: -25 to 70 ºC (-13 to 158 ºF)  
Relative humidity range: 5 to 95% non-condensing  
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Hardware Reference  
45  
LEDs  
AC power supply  
RPS fan fault  
Router PSU fault  
RPS PSU fault  
Main (router) fan fault  
AC Power Supply  
Universal 110 VAC to 240 VAC, 50 Hz to 60 Hz input  
DC Output  
5 V/6.5 A  
12 V/1.0 A  
-12 V/0.2 A  
AR740 RPS LEDs and LEDs on the rear panel indicate the RPS’s operational status.  
what they mean  
Table 7: AR740 RPS LEDs  
LED  
State  
Function  
Power  
Green  
The RPS unit is receiving AC power and the  
voltage is within an acceptable range.  
RPS Fan Fault  
Amber  
The RPS is switched OFF.  
Mains power to the RPS has failed.  
An RPS fan has failed.  
Off  
Normal operation.  
Main PSU Fault  
Amber  
The corresponding router is switched OFF or its  
PSU has failed.  
Mains power to the router has failed.  
The DC cable between the router and RPS is  
not connected.  
The RPS is supplying power to the router.  
Off  
Normal operation.  
RPS PSU Fault  
Amber  
The RPS is switched OFF or its PSU has failed.  
Mains power to the RPS has failed.  
The DC cable between the corresponding  
router and RPS is not connected.  
Off  
Normal operation.  
Main Fan Fault  
Amber  
The DC cable between the corresponding  
router and RPS is not connected.  
A main router fan has failed.  
Off  
Normal operation.  
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AR700 Series Router  
SFP Ports (AR770S only)  
SFP (small form-factor pluggable) transceivers are compact, hot-swappable,  
and high speed. Certain fibre-optic SFP transceivers are supported by the  
AR770S router so that you can interchange port types to meet changing  
network requirements. The AR770S router has 1000BASE-X Small Form-factor  
Pluggable Eth slots conveniently located on the front panel.  
Approved SFP You can purchase SFP transceivers when you purchase a router or order them  
separately as needed.  
transceivers  
SFP ports These SFP transceivers are approved and supported for the AR770S router:  
Product No.  
Media Type  
Description  
AT-SPSX  
(previously  
AT-MG8SX)  
1000BASE-SX  
850 nm, 2 to 550 m with 50/125 µm MM fibre,  
2 to 275 m with 62.5/125 µm MM fiber, LC  
connector  
AT-SPLX10  
(previously  
AT-MG8LX10)  
1000BASE-LX  
1000BASE-ZX  
1310 nm, 2 m to 10 km with 9 µm SM fibre,  
2 m to 550 m with 50 µm MM fibre, 2m to  
550 m with 62.5 µm MM fibre, LC connector  
AT-SPZX80  
(previously  
AT-MGZX)  
1550 nm, 80 km with 9 µm SM fibre, LC  
connector  
For the latest list of approved SFP transceivers, contact your authorised Allied  
Telesis distributor or reseller.  
For instructions on inserting or removing an SFP, see the AR700 Series Router  
Installation and Safety Guide packaged with your router, or available at  
Warning Do not look into SFP cables or transceivers. Invisible laser  
radiation may be emitted from disconnected fibres or connectors.  
!
PICs and NSMs  
You can install PICs (Port Interface Cards) in AR700 Series routers to give the  
router additional interfaces. The sections describing each router model (earlier  
in this Reference) list which PICs can be installed in each model of router.  
Installation information for PICs can be found in the Port Interface Card Quick  
Install Guide. Detailed PIC hardware information can be found in the Port  
Interface Card Hardware Reference.  
NSMs can be installed in the AR745 routers. Installation information for NSMs  
can be found in the Network Service Module Quick Install Guide. Detailed NSM  
hardware information can be found in the Network Service Module Hardware  
Reference.  
The PIC and NSM Quick Install Guides and Hardware References are included  
on the Documentation and Tools CD-ROM bundled with the router. They can  
also be downloaded from www.alliedtelesis.com/support/software/ .  
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PCI Accelerator Cards (PACs)  
PCI Accelerator Cards (PACs) provide additional processing features or  
performance, but do not add extra physical interfaces to the router. A PAC can  
be installed in the dedicated PAC slot on AT-AR725 and AT-AR745 routers. The  
AR750S, AR750S-DP, and AR770S routers have an inbuilt high performance  
encryption processor, and therefore do not have a PAC slot.  
Warning PACs should only be installed by authorised service  
personnel. Unauthorised opening of the router’s lid may cause danger  
of injury from electric shock, damage to the router, and invalidation of  
the product warranty.  
!
Two PACs are available:  
AT-AR060 EPAC, Encryption PAC.  
AT-AR061 ECPAC, Encryption/Compression PAC.  
How PACs work PACs provide AR725 and AR745 routers with high performance hardware-  
based encryption and/or compression services. PACs have a DMA slave  
processor, which operates independently of the base system. This processor is  
responsible for the transfer of data between the base system and the PAC, and  
the control of local high speed encryption and compression data processing  
devices.  
This architecture allows data encoding to be performed off-line without  
involving the base router processor, thereby maximising PAC performance  
while at the same time minimising impact on the router.  
The PAC is a single card. Figure 19 shows the layout of the board for an  
AT-AR061 ECPAC.  
Figure 19: Location of main components on the AT-AR061 ECPAC card  
PAC Connector  
Hole for PAC fastner  
Holes for PAC fasteners  
PAC  
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AR700 Series Router  
Compression PAC-based compression has the following features:  
Local 32-bit processor for high speed control and data transfer.  
Dedicated high performance 32-bit compression hardware.  
High compression ratio Lempel-Ziv algorithm in hardware.  
2 MBytes of history memory.  
Support for up to 127 compression channels.  
Compression and decompression operations are performed by a 32-bit data  
compression coprocessor specifically designed for high-performance Lempel-  
Ziv compression applications. The 2 MBytes of history memory allows up to  
127 individual data links to use compression concurrently, enabling PACs to  
provide compression for complicated network architectures. Figure 20 shows  
typical compression ratios achieved by a PAC for a representative set of file  
types.  
Figure 20: Typical hardware compression ratios by file type  
Compression Ratio  
7
6
5
4
3
2
1
0
Font Program Window Text  
Object Spread C source EPS  
sheet  
Bitmap  
TIFF  
File Type  
CMPRATIO  
Encryption PAC-based encryption has the following features:  
Local 32-bit processor for high speed control and data transfer.  
Dedicated high performance 32-bit Data Encryption Standard – DES and  
Triple DES (3DES) – hardware.  
PAC DES and triple DES encryption are based on a fast 32-bit device that  
complies with FIPS PUB 46, ISO DEA-1 and ANSI X3.92 standards.  
Dual Mode Throughput of an encrypted link can be dramatically increased by using data  
compression. To support this, ECPACs support both encryption and  
compression, providing a dual mode that allows combined compression and  
encryption operations. So that the compression phase will have the best  
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49  
opportunity at finding non-random data, compression occurs before  
encryption, in the order:  
compression encryption //decryption decompression  
Adding compression to an encrypted link increases line throughput. Once  
compression has been carried out there is less data requiring encryption,  
passing back to the base system, and transferring across the network, so less  
base system bus and network link bandwidth is required for a given amount of  
data. This results in the dual operation being very effective where encryption is  
required.  
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AR700 Series Router  
Asynchronous Interfaces  
Asynchronous interfaces, also known as terminal ports, (labelled ASYN0,  
ASYN1, RS-232 or CONSOLE) use RJ-45 connectors, wired as DTE with one of  
two pinout wiring schemes:  
For AR725, AR745 and AT-AR024 asynchronous port pinouts see Table 8.  
For AR750S, AR750S-DP and AR770S asynchronous port pinouts see  
Table 8: Pinout* of asynchronous ports for AT-AR725, AT-AR745 and AT-AR024  
RJ-45 Pin Function  
Signal Direction  
1
2
3
4
5
6
7
8
RING  
DCD  
DTR  
GND  
RXD  
TXD  
CTS  
Input to router (only available on expansion card interfaces)  
Input to router  
Output from router  
Input to router  
Output from router  
Input to router  
RTS  
Output from router  
* Pins are numbered from left to right looking into the socket with the locking tab down.  
Table 9: Pinout* of asynchronous interface on an AR750S, AR750S-DP,and AR770S  
RJ-45 Pin Function  
Signal Direction  
Output from router  
Output from router  
Output from router  
1
2
3
4
5
6
7
8
RTS  
DTR  
TXD  
GND  
GND  
RXD  
DCD  
CTS  
Input to router  
Input to router  
Input to router  
* Pins are numbered from left to right looking into the socket with the locking tab down.  
Asynchronous interfaces follow the RS-232 standard. A range of speeds is  
selectable using the set asyn command from the Interfaces chapter of the  
Software Reference.  
Not all signals need to be connected. In particular, DCD, DTR, CTS and RTS are  
not required unless the interface has been specifically set up to use them. See  
the Terminal Server chapter in the Software Reference for more details. A typical  
terminal connection will only require RXD, TXD and GND, but refer to the  
equipment manual for the connected device for more specific data.  
LPD print ports If LPD-based printer ports are required, then the router may  
expect to ‘see’ the DTR signal from the printer connected to the DCD pin of the  
router. This is used to detect both the fact that the printer is ‘online’ and that it  
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51  
is ‘powered-on’. This prevents print jobs from being sent to a disconnected  
printer and lost. See the Printer Server chapter of the Software Reference.  
Cables and Loopback Plugs  
This section describes how to make cables for connecting the AR router to  
networks, terminals, and printers. It also describes loopback plugs, which are  
required for testing most router interfaces.  
RS-232 Terminal and Modem Cables  
The following tables list the wiring diagrams to follow when constructing  
terminal and modem cables for various connector and port combinations for  
asynchronous ports.  
For AR725, AR745 and AT-AR024 asynchronous ports see Table 10.  
For AR750S, AR750S-DP and AR770S asynchronous ports see Table 11.  
Table 10: Terminal and modem cables for AR725, AR745 and AT-AR024  
Cable  
Figure  
Asyn port on router/PIC to DB25 female (terminal) cable (DTE to DTE) Figure 21 on page 52  
Asyn port on router/PIC to DB9 female (terminal) cable (DTE to DTE) Figure 23 on page 53  
Asyn port on router/PIC to DB25 male (modem) cable (DTE to DCE) Figure 25 on page 54  
Asyn port on router/PIC to DB9 male (modem) cable (DTE to DCE) Figure 27 on page 55  
Asyn port on router/PIC to MiniDin (Macintosh) (DTE to DTE)  
Table 11: Terminal and modem cables for AR750S, AR750S-DP, and AR770S  
Cable  
Figure  
Asyn port on router to DB25 female (terminal) cable (DTE to DTE)  
Asyn port on router to DB9 female (terminal) cable (DTE to DTE)  
Asyn port on router to DB25 male (modem) cable (DTE to DCE)  
Asyn port on router to DB9 male (modem) cable (DTE to DCE)  
Asyn port on router to MiniDin (Macintosh) (DTE to DTE)  
RING input The RING input is only available on asynchronous ports on  
expansion cards. It is not available on asynchronous ports on base CPU boards.  
An alternative method, for both terminal and modem cables, is to wire an RJ-45  
patch cord (a straight pin-to-pin cable with RJ-45 connectors on both ends) and  
then use an RJ-45-to-DB25 adaptor wired internally as a crossed cable. These  
adaptors are available in DB9 and DB25 female and male versions from data  
cabling suppliers, and are supplied with wires terminated on the RJ-45 socket  
and pins on the free ends. The pins are inserted into the appropriate positions  
in the DB9 or DB25 shell.  
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AR700 Series Router  
Figure 21: Pin wiring for terminal cable to connect asyn port on AR725, AR745 or  
AT-AR024 to DB25 female (terminal) port  
RJ45  
DB25 Female  
(to terminal)  
(to switch or router)  
1 Not connected  
(RXD)  
(TXD)  
(CTS)  
(RTS)  
5
6
7
8
2
3
4
5
6 Not connected  
(GND)  
(DTR)  
(DCD)  
(RING)  
4
3
2
1
7
8
20  
22  
Notes:  
(1)  
Other pins are not connected.  
(2)  
Output from switch or router; Input to switch or router.  
(3)  
Cable version 1.0.  
TERMINAL  
Figure 22: Pin wiring for terminal cable to connect asyn port on AR750S, AR750S-DP or  
AR770S to DB25 female (terminal) port  
RJ-45  
(to router)  
DB25 Female  
(to terminal)  
1 Not connected  
(RXD)  
6
3
8
1
4
5
2
7
2
(TXD)  
(CTS)  
(RTS)  
3
4
5
(GND)  
(GND)  
(DTR)  
(DCD)  
6 Not connected  
7
8
20  
22 Not connected  
Notes:  
(1)  
Other pins are not connected.  
(2)  
Output from switch or router; Input to switch or router.  
(3)  
Cable version 1.0.  
terminal_ar750  
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Figure 23: Pin wiring for terminal cable to connect asyn port on AR725, AR745 or  
AT-AR024 to DB9 female (terminal) port  
RJ-45  
(to router)  
DB9 Female  
(to terminal)  
1
2
3
4
5
3
(DTR)  
6
5
2
4
(TXD)  
(RXD)  
(DCD)  
(GND)  
6 Not connected  
7
8
9
7
8
1
(CTS)  
(RTS)  
(RING)  
Notes:  
(1)  
Output from switch or router; Input to switch or router.  
(2)  
Cable version 1.0.  
terminal_db9f  
Figure 24: Pin wiring for terminal cable to connect asyn port on AR750S, AR750S-DP, or  
AR770S to DB9 female (terminal) port  
RJ-45  
(to router)  
DB9 Female  
(to terminal)  
(DTR)  
2
3
6
7
4
5
8
1
1
2
3
4
5
(TXD)  
(RXD)  
(DCD)  
(GND)  
(GND)  
(CTS)  
(RTS)  
6 Not connected  
7
8
9 Not connected  
Notes:  
(1)  
Output from switch or router; Input to switch or router.  
(2)  
Cable version 1.0.  
terminal_ar750_db9f  
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AR700 Series Router  
Figure 25: Pin wiring for modem cable to connect asyn port on AR725, AR745 or  
AT-AR024 to DB25 male (modem) port  
DB25 Male  
(to modem)  
RJ45  
(to switch or router)  
1 Not connected  
(TXD)  
(RXD)  
(RTS)  
(CTS)  
6
5
8
7
2
3
4
5
6 Not connected  
(GND)  
(DCD)  
(DTR)  
4
2
3
1
7
8
20  
22  
(RING)  
Notes:  
(1)  
Other pins are not connected.  
(2)  
Output from switch or router; Input to switch or router.  
(3)  
Cable version 1.0.  
MODEM  
Figure 26: Pin wiring for modem cable to connect asyn port on AR750S, AR750S-DP, or  
AR770S to DB25 male (modem) port  
DB25 Male  
(to modem)  
RJ-45  
(to router)  
1 Not connected  
(TXD)  
(RXD)  
(RTS)  
(CTS)  
(GND)  
(GND)  
(DCD)  
(DTR)  
3
2
6
1
8
4
5
7
2
1
3
4
5
6 Not connected  
7
8
20  
22 Not connected  
Notes:  
(1)  
Other pins are not connected.  
(2)  
Output from switch or router; Input to switch or router.  
(3)  
Cable version 1.0.  
modem_ar750  
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Figure 27: Pin wiring for modem cable to connect asyn port on AR725, AR745 or  
AT-AR024 to DB9 male (modem) port  
RJ-45  
(to router)  
DB9 Male  
(to modem  
(DCD)  
2
5
6
3
4
1
2
3
4
5
(RXD)  
(TXD)  
(DTR)  
(GND)  
6 Not connected  
(RTS)  
(CTS)  
(RING)  
8
7
1
7
8
9
Notes:  
(1)  
Output from switch or router; Input to switch or router.  
(2)  
Cable version 1.0.  
modem_db9m  
Figure 28: Pin wiring for modem cable to connect asyn port on AR750S, AR750S-DP, or  
AR770S to DB9 male (modem) port  
RJ-45  
(to router)  
DB9 Male  
(to modem)  
(DCD)  
7
6
3
2
4
5
1
8
1
2
3
4
5
(RXD)  
(TXD)  
(DTR)  
(GND)  
(GND)  
(RTS)  
6 Not connected  
7
8
(CTS)  
9 Not connected  
Notes:  
(1)  
Output from switch or router; Input to switch or router.  
(2)  
Cable version 1.0.  
modem_ar750_db9m  
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AR700 Series Router  
Figure 29: Pin wiring diagram for a Macintosh serial cable to connect asyn port on AR725,  
AR745 or AT-AR024 to MiniDin (Macintosh)  
MiniDin  
(to Macintosh)  
RJ45  
(to switch or router)  
1
(DCD)  
(RTS)  
(RXD)  
(GND)  
(TXD)  
(CTS)  
(DTR)  
2
8
5
4
6
7
3
1
2
3
4
5
6 Not connected  
7
8
Notes:  
(1)  
(2)  
Output from switch or router; Input to switch or router.  
Cable version 1.0.  
MINIDIN  
Figure 30: Pin wiring diagram for a Macintosh serial cable to connect asyn port on AR750S,  
AR750S-DP, or AR770S to MiniDin (Macintosh)  
MiniDin  
(to Macintosh)  
RJ-45  
(to router)  
(DCD)  
7
8
1
6
4
3
5
2
1
(CTS)  
(RTS)  
(RXD)  
(GND)  
(TXD)  
(GND)  
(DTR)  
1
2
3
4
5
6 Not connected  
7
8
Notes:  
(1)  
(2)  
(3)  
Output from switch or router; Input to switch or router.  
Cable version 1.0.  
Pin 1 on MiniDin has 2 wires.  
minidin_ar750  
Loopback Plugs for Testing Interfaces  
Loopback plugs are used in conjunction with the Test Facility software (see the  
Test Facility chapter) to test the router’s physical interfaces. The purpose of a  
loopback plug is to connect the output pins on the interface to the input pins so  
that any data transmitted over the interface is looped back and received at the  
same interface.  
On interfaces with control signals, these are also looped back. The data  
received on the interface is compared with the data transmitted to determine  
whether or not the interface is functioning correctly. In order to produce a  
comprehensive test report, most tests performed by the Test Facility require a  
loopback plug to be inserted in the interface being tested.  
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Some interfaces (e.g., the synchronous ports) require a specially built external  
testing device (available from your authorised Allied Telesis distributor or  
reseller) to be used in conjunction with the Test Facility.  
Table 12 lists the loopback plug wiring diagrams for each interface type.  
Table 12: Loopback plug pin wiring diagrams  
Physical Interface  
Loopback Pin Wiring Diagram  
RJ-45 asynchronous interface on AR725, AR745 or  
AT-AR024  
RJ-45 asynchronous interface on AR750S, AR750S-DP or Figure 32  
AR770S  
Ethernet TP interface  
Figure 31: RJ-45 loopback plug for testing asyn interfaces AR725, AR745 or AT-AR024  
8 7 6 5 4 3 2 1  
(RING)  
(DCD)  
(DTR)  
(GND)  
(RXD)  
(TXD)  
(CTS)  
(RTS)  
1
2
3
4
5
6
7
8
End view  
of plug  
RJ45LOOP_ar7x5  
Figure 32: RJ-45 loopback plug for testing asyn interfaces on AR750S, AR750S-DP, or  
AR770S  
8 7 6 5 4 3 2 1  
(RTS)  
1
2
3
4
5
6
7
8
(DTR)  
(TXD)  
(GND)  
(GND)  
(RXD)  
(DCD)  
(CTS)  
End view  
of plug  
rj45loop_ar750  
Figure 33: Ethernet twisted pair (TP) loopback plug  
8 7 6 5 4 3 2 1  
TX+  
TX-  
1
2
3
4
5
6
7
8
RX+  
End view  
of plug  
Not connected  
Not connected  
RX-  
Not connected  
Not connected  
TPLOOP_ar700  
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58  
AR700 Series Router  
Test Facility  
A Test Facility designed to test the router’s physical interfaces is built into all  
the router software. The Test Facility can be thought of as a specialised  
interface module like PPP or Frame Relay. Although the router can continue to  
operate normally during specific tests, any interfaces being tested are  
dedicated to the Test Facility. For more information on the Test Facility’s  
operation, see the Test Facility chapter of the Software Reference.  
The routers support a wide range of interface types, including Ethernet,  
asynchronous, synchronous, Basic Rate ISDN and Primary Rate ISDN.  
interface types (except Ethernet interfaces on the AT-AR026 PIC) can be tested  
independently using the Test Facility software. Most tests, however, will also  
require the use of a loopback plug. For more information on loopback plugs,  
AR026 PIC The Test Facility does not test Ethernet interfaces on AT-AR026  
PICs.  
The following examples show how to test specific interfaces.  
To display test results use the command:  
show test  
which produces a display like that shown in Figure 34.  
Test failure If a test fails, please contact your authorised Allied Telesis  
distributor or reseller.  
Figure 34: Example output from the show test command  
Board  
ID Bay Board Name  
Host Id Rev Serial number  
----------------------------------------------------------------------------  
Base  
PIC  
PIC  
241  
AR750S  
0 P1-0 ATR00433  
0 M2-0 42199300  
0 M2-0 41872128  
38 0 AT-AR023-00 PIC Sync  
38 1 AT-AR023-00 PIC Sync  
Duration  
Details  
Interface State  
Result  
Type (minutes) Data( %OK ) Control  
----------------------------------------------------------------------------  
eth0  
eth1  
no test  
no test  
-
-
-
-
-
-
-
-
-
-
-
-
port1 complete good  
port2 complete good  
port3 complete good  
port4 complete good  
port5 complete good  
-
-
-
-
-
2 good(100.0) -  
2 good(100.0) -  
2 good(100.0) -  
2 good(100.0) -  
2 good(100.0) -  
syn0  
syn1  
no test  
complete good  
-
-
-
-
-
-
RS-232dte  
dce  
X.21 dte  
dce  
V.35 dte  
dce  
1 good(100.0) good  
1 good(100.0) good  
1 good(100.0) good  
1 good(100.0) good  
1 good(100.0) good  
1 good(100.0) good  
asyn0 no test  
enco0 no test  
-
-
-
-
-
-
-
-
-
-
-
-
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Asynchronous Asynchronous interfaces require a loopback plug to be installed before the test  
will operate. See “Cables and Loopback Plugs” on page 51 for details of how to  
make a loopback plug. To start a test of an asynchronous interface, use the  
command:  
Interface Tests  
enable test int=portn  
where n is the interface number. This will run the test for 4 minutes. Use the  
show test command (from the Test Facility chapter of the Software Reference),  
to observe the test progress.  
Ethernet Interface A loopback plug is required to run the first part of the Ethernet test on eth ports  
and switch ports. See “Cables and Loopback Plugs” on page 51 for details of  
how to make a loopback plug.  
Tests for Switch and  
Eth Ports  
To start a test of an Eth interface, use the command:  
enable test int=ethn  
where n is the Ethernet interface number.  
To start a test of a switch port interface, use the command:  
enable test int=portn  
where n is the switch port number.  
This will run the test for 4 minutes. Use the show test command (from the Test  
Facility chapter of the Software Reference), to observe the test progress.  
AR770S To test an eth port on the AR770S in 1000 Mbps mode, loop the port  
back to the other eth port. To test a switch port in 1000 Mbps mode, loop the  
port back to another switch port. In 10 Mbps or 100 Mbps mode, either loop the  
port back to another port, or use a loopback plug. If two or more ports are  
looped back to each other, you must test both ports at the same time. Use the  
command:  
enable test int=base  
AR026 PIC The Test Facility does not test Ethernet interfaces on AT-AR026  
PICs.  
WAN Port Tests To fully test synchronous interfaces, an external tester (available from your  
authorised Allied Telesis distributor or reseller) is required. A loopback plug is  
not required to test BRI interfaces.  
To start a WAN interface test, use the command:  
enable test int=synn  
or  
enable test int=brin  
where n is the WAN interface number. This will run the test for 4 minutes. Use  
the show test command (from the Test Facility chapter of the Software  
Reference), to observe the test progress.  
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AR700 Series Router  
Restricted Maintenance Procedures  
This section contains procedures that should only be performed by authorised  
service personnel. Unauthorised use of procedures in this section may cause  
danger of injury from electric shock, damage to the router, and invalidation of  
the product warranty.  
If you would like to know more about the procedures outlined in this section,  
please contact your authorised Allied Telesis distributor or reseller.  
Diagnostics  
The router software includes a set of diagnostic programs. These programs  
perform basic level checks of all system components. They do not run in  
conjunction with the normal operating code, and require that the system be  
totally dedicated to their use. A detailed knowledge of the way your router  
hardware functions is necessary if diagnostics are to be used effectively.  
Caution Diagnostic mode is only to be used by authorised service  
personnel. Unauthorised use of diagnostic mode may cause the router  
to cease functioning.  
The router will not function as a router if diagnostic mode is running.  
!
AR026 PIC The diagnostics programs do not perform checks on AT-AR026  
PICs.  
To enable diagnostics mode:  
1. Connect a terminal to the console port.  
Connect a terminal to the console port (port 0) on the router’s rear panel,  
and set the terminal communications parameters to:  
9600 bps  
8 data bits  
1 stop bit  
No parity  
Hardware flow control  
2. Restart the router.  
Restart the router, either by switching it off and on again using the power  
switch on the rear panel, or by using the terminal to login and enter the  
command:  
restart reboot  
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3. Enable diagnostics mode during start-up.  
During the router start-up process, at the prompt:  
Force EPROM download (Y)?  
press [Ctrl/D] on the terminal to enter diagnostics mode. A banner page is  
displayed on the terminal (Figure 35). This can be used to check that the  
terminal is correctly connected.  
Caution Running the battery-backed RAM test, Full Flash test, or  
!
Totally Erase Flash option will cause important system files to be  
deleted. These will need to be reinstalled before the router can function  
normally.  
Figure 35: Diagnostics banner page.  
* * * Diagnostic Mode * * *  
version: 12-Jan-2005  
Main Menu:  
0. Restart  
1. Full RAM test  
2. ROM checksum test  
3. LED test  
4. Dump or Modify  
Enter selection ==>  
Figure 36: Example diagnostics banner page for the AR770S  
* * * Diagnostic Mode * * *  
version: Jul 8 2005 11:20:29  
Main Menu:  
0. Restart  
1. Full RAM test  
2. ROM checksum test  
5. Battery backed RAM test  
9. LED test  
A. Dump or Modify  
Enter selection ==>  
To run a diagnostic program, enter the corresponding letter or number. There  
are several sub-menus to cover all the different options. Table 13 lists the keys  
that control the basic operation of the diagnostics.  
Table 13: Basic commands for running diagnostics  
Key  
Q
Function  
Quits any running tests and displays the banner page.  
Prints a summary of test results so far.  
S
Diagnostics are designed to be used with all models of the router, and therefore  
some instances of particular tests will not be appropriate for some models. A  
reasonable level of understanding of the system structure is needed to operate  
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AR700 Series Router  
diagnostics and interpret the results. Diagnostics only require the base CPU  
board to be installed in the system.  
To restore an AR725, AR745, AR750S, or AR770S router to normal operation,  
perform a restart by switching its power switch (rear panel) OFF and ON. To  
restore the AR750S-DP to normal operation, use the Reset button on the front  
panel of the router.  
For more information This manual is not intended as a guide to diagnostics.  
Diagnostics are designed to be run by service personnel only. For more  
information, contact your authorised Allied Telesis distributor or reseller.  
Lithium Battery Replacement  
The routers have a replaceable lithium battery. The battery should be replaced  
when the router:  
has been in storage for more than two years  
has only been powered up intermittently over a two year period  
loses its time setting  
displays the message “ERROR: BBR Battery low”  
loses its configuration during a power cycle  
Caution Batteries should be replaced by authorised service personnel  
only. Unauthorised opening of the router lid may cause danger of  
injury from electric shock, damage to the router, and invalidation of  
the product warranty.  
!
The battery must be replaced by a 3 V lithium button cell, type CR2032  
or equivalent.  
Contacting Us  
With locations covering all of the established markets in North America, Latin  
America and Europe, Allied Telesis provides localized sales and technical  
support worldwide. To find our representative nearest you, visit Allied Telesis  
C613-03087-00 Rev E  
 
   

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