ATM Tips
Issue 4 May 2002
5-73555-233-123
Cajun A500 Diagnostics
The first step in any diagnostic procedure involving the A500 is to identify the
OC-3 ports on the A500 that have DEFINITY port networks attached.
■ Be aware that customers may use other ports on the A500 for applications
unrelated to DEFINITY (LAN traffic or multimedia applications, for
examples).
■ These other applications may manifest themselves in the output of the
troubleshooting commands you run on the A500. DEFINITY port networks
must be identified by their A500 port numbers.
NOTE:
The following examples show DEFINITY port networks connected to A500
ports A1.1 and A1.2.
Has the A500 been installed and configured correctly?
Diagnostics
■ Is the A500 powered up?
■ If you are administering the A500 through a locally-attached console, is
there a local console terminal connected to the console port on the A500
switch processor board with the correctly-pinned RS232 serial cable?
■ If you are administering the A500 through telnet over the Ethernet, is there
an 10BaseT Ethernet drop plugged into the Ethernet port on the A500
switch processor board? (Note that a few A500 commands are only
permitted over the local console terminal.)
■ Has the A500 been booted using either the recessed reset button or by
turning the power off, then on again?
■ Did the A500 go through a normal power up sequence, including testing all
of the LEDs?
■ Are any A500 yellow fault LEDs lit?
RPRD Yello
w
Off Normal state
Power Supply AC OK Green Steady on Normal state. AC power is okay.
DC OK Green Steady on Normal state. DC power is okay.
Table 5-9. A500 LED Quick Reference — Continued
Component Label Color State Meaning
Continued on next page
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