LED Interpretation
General
The lighting and unlighting of LEDs indicates the status of various maintenance
components in the system. LEDS are located on the attendant console, on all
circuit packs in the switch cabinets and, optionally, on customer-designated voice
terminals. The following LEDS are included in the system:
''Processor and Maintenance Circuit Pack LEDs''
''Duplication Interface circuit pack LEDs''
''Attendant console LEDs''
''Cabinet power unit LEDs''
''Power Distribution Unit LEDs''
''Control and port circuit pack status LEDs''
555-233-123
7
Issue 4 May 2002
7-1