Diagnostics - Allied Telesis AR Series Hardware Reference Manual

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Table 39: Functions of the DIP switch on the AT-AR720 base CPU card.
DIP Switch Function
SW1-1 Reserved (should be OFF)
SW1-2 Enable startup messages (ON=enable)
SW1-3 Reserved (should be OFF)
SW1-4 Enable show cycles (ON=enable)
SW1-5 Disable data cache (ON=disable)
SW1-6 Disable instruction cache (ON=disable)
SW1-7 Enable diagnostic mode (ON=enable)
SW1-8 Reserved (should be OFF)

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 is only to be used by authorised service personnel.
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.
The router will not function as a router if diagnostic mode is running.
Diagnostics will 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:
• 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
AR Router
Default
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
C613-03031-01 REV E