ROUTINE MAINTENANCE
Reseating and Replacing Circuit Packs
Removing and Restoring Power
Restarting the System
ERROR LOG
Accessing the Error Log From the SAT
ERROR MESSAGES
Clearing System-Detected Troubles
Complete System Failure
Common Control Trouble
Circuit Pack Trouble
Frontplane Ribbon Connector Trouble (Release 1
Only)
Power Supply Trouble
Power Supply Protection
Power Supply Replacement
Fan Assembly Trouble
Overheating Trouble
Backplane and Cabinet Trouble
Emergency Transfer Unit Trouble
CLEARING USER-DETECTED TROUBLES
Administration Equipment Troubles
Time-Keeping Troubles
Voice Terminal and Wiring Troubles
Voice Transmission Troubles
7300H Series Terminal Troubles
Virtual Facilities Troubles
Trunk Troubles
Outgoing Trunk Problems
Incoming Trunk Problems
Error Log Interpretation: Loop-Start Trunks
Error Log Interpretation: Ground-Start Trunks
DID Trunks Troubles
Switched Loop Attendant Console Troubles
Special Port Circuit Options for Stations and Trunks
Data Line Troubles
Multiple Troubles or Trouble That Cannot Be
Diagnosed
4-20
4-20
4-22
4-23
4-27
4-30
4-32
4-61
4-61
4-61
4-63
4-64
4-64
4-69
4-70
4-71
4-72
4-72
4-80
4-81
4-81
4-82
4-82
4-83
4-84
4-85
4-89
4-89
4-90
4-90
4-91
4-92
4-93
4-99
4-100
4-102
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