Specifications

Hardware Reference 41
C613-03086-00 REV A
Restricted Procedures
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.
Diagnostic mode should be used by authorised service personnel only.
Unauthorised use of diagnostic mode may cause the router to cease functioning,
may invalidate the product warranty, and may be a breach of the product
licence agreement.
To enable diagnostics mode
The router does not function as a router while diagnostic mode is running.
Diagnostics do not perform checks on AT-AR026 PICs.
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:
• 9600bps
• 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
3. Enable diagnostics mode during start-up.
During the router start-up process, press [Ctrl/D] on the terminal to enter
diagnostics mode when you see the following prompt:
Force EPROM download (Y)?
A banner page is displayed on the terminal (see figure below). This can be
used to check that the terminal is correctly connected.
Figure 1-21: Diagnostics banner page.
* * * Diagnostic Mode * * *
version: 1-Jul-2004
Main Menu:
0. Restart
1. Full RAM test
2. ROM checksum test
Enter selection ==>