Power Supply Status
LEDs Meaning
Yellow
(Overcurrent)
On - There is an overcurrent condition with the −48 V to one or
more of the adapters (slots 1–8) or the +12 V to the fan tray.
Green DC On - +5 V, +12 V, and −48 V are OK.
Green AC On - AC source voltage is present and within tolerance.
System Card Status
LEDs Meaning
PCMCIA 1 or
PCMCIA 2
(Yellow)
On - PCMCIA device has a fault, is not installed, or is not seated
correctly.
Off - Device passed self-tests
OK (Green) On - Card hardware is operating normally.
Blinking - Loading from hard file
OK (Yellow) On - Card hardware has a fault.
OK (Green and
Yellow)
On (both) - Waiting for password.
Fault Hard Drive
(Yellow)
On - Hard drive has failed.
SAC Card Status
LEDs Meaning
OK (Green) On - Card hardware is operating normally.
Blinking - Loading from hard file
OK (Yellow) On
MAE is not configured
Quick config is running on MAE
Card hardware has a fault.
Adapter Card Status
LEDs Meaning
OK (Green) On - Adapter is operating normally.
OK (Yellow) On - Adapter has a fault.
Wrong slot
(Yellow)
On - Adapter is in the wrong slot.
The wrong slot LED is ON only when an adapter that is plugged into
the multiaccess enclosure violates the plugging rules described in
Appendix B, “MAE Adapters Plugging Rules” on page B-1.
Green port
1
On - Port is operating normally (enabled and configured).
Off - Port is not configured or is disabled.
For the ESCON adapter:
Blinking - The optical power measurement test is running.
Yellow port
1
On - One or more ports has a hardware fault.
Blinking - One or more ports has a port I/O or network failure. Use
the Maintenance Analysis Procedures (MAPs) to isolate.
Off - No problem detected.
Chapter 3. Multiaccess Enclosure Problem Determination 3-3
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