AT&T System 25 - Manual (Page 16)

ROUTINE MAINTENANCE
Reseating and Replacing Circuit Packs
Removing and Restoring Power
Restarting the System
E R R O R L O G
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
O n l y )
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
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