Allied Telesis AR Series Hardware Reference Manual page 96

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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 will
be displayed on the terminal (Figure 62 on page 96). This can be used to
check that the terminal is correctly connected.
Figure 62: AR router diagnostics banner page.
* * * Diagnostic Mode * * *
version 06-Mar-95
Main Menu:
1. Full RAM test
2. ROM checksum test
3. Battery backed RAM battery test
4. Battery backed RAM test
5. Watchdog test
6. Full Flash Test
7. Totally Erase FLASH
P. Go to Probe
R 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 37 on page 96
lists the keys that control the basic operation of the diagnostics.
Table 37: Basic commands for running diagnostic s .
Key Function
Q Quits any running tests and displays the banner page.
S Prints a summary of test results so far.
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
diagnostics and interpret the results. Diagnostics only require the base CPU
board to be installed in the system.
To restore the router to normal operation, perform a restart by switching its
power switch (rear panel) OFF and ON.
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
Telesyn distributor or reseller.
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.
AR Router
C613-03031-01 REV C