Lucent Technologies 555-233-119 Table 1-15 shows the various LEDs on the A500 ATM switch and the meanings of the different states., Tabl e 1 -1 4. TN230X LED reference Continued LED color Interpretation Red Green Yellow, Continued on next page

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance for csi systems
1-103ATM Tips
1
Table 1-15 shows the various LEDs on the A500 ATM switch and the meanings of
the different states.
- - 100ms on /
100ms off Loss of signal on the OC-3 fiber. Either the TN230X-receive (top) or TN230X-transmit (bottom)
fibers are not working.
N/S Fast blink - Running DSP diagnostics or downloading cod e to
DSPs (typical during boot process).
- Slow blink - Board insertion has not yet completed.
- Steady on - Running maintenance tests. May appear to be blinking
if several short tests are run one after anoth er.
Steady on - - Hardware alarm. Does not necessarily take the TN230X
out of service, for example, if one of the 24 DSPs fails
diagnostics.
Table 1-15. A500 LED Quick Reference
Component Label Color State Meaning
Switch
Proces sor
Board
LK Green Intermittent
blink Normal state. T raffic is being sent or received over the Ethernet LAN link.
RX Green Steady on Normal state. Carrier is received over the
Ethernet LAN link.
DIAG Green Off Normal state.
NBOOT Green Off Normal state.
MGT Green Off Normal state.
RUN Green Steady on Normal state. The switch processor is
running.
PWR Green Steady on Normal state. The switch processor board is
powered up.
VOLT Yellow Off Normal state
TEMP Yellow Off Normal state
FAN Yellow Off Normal state
Continued on next page
Tabl e 1 -1 4. TN230X LED reference — Continued
LED color Interpretation
Red Green Yellow
Continued on next page