Station Features and Operation (PT/SLT)
User Manual 413
4.4.5 Local Alarm
If a system error is detected during on-line communication mode, the Alarm light on the
Manager extension turns red. The Manager can confirm the error message by pressing the red
lit Alarm button.
If a major error occurs, minor errors will be neglected and only the first major error message
will be displayed. The second error will be neglected, if the error priority is the same as the first
one. Please refer to Section "5 Troubleshooting" in the Installation Manual for further
information on error messages.
Error Message List (Priority order)
Error Message Description Priority Alarm LED
ERR CLCK IC Calendar IC failure 1 A
ERR DC DOWN DC power down 1 B
B/S FAN FLT! Basic shelf fan alarm 1 E
E/S1 FAN FLT! Expansion shelf 1 fan alarm 1 E
E/S2 FAN FLT! Expansion shelf 2 fan alarm 1 E
B/S OVER HEAT! Basic shelf heat alarm 1 E
E/S1 OVER HEAT! Expansion shelf 1 heat alarm 1 E
E/S2 OVER HEAT! Expansion shelf 2 heat alarm 1 E
ERR TSW DWN TSW clock down 1 B
ERR BAT ALM CPU RAM battery alarm 1 A
ERR AC DOWN AC power down 2 B
ERR xyy CRD ERR Option Card failure 2 A
ERR xyy DISCNCT Card disconnect 2 B
ERR xyy DTR AIS Digital trunk AIS reception 2 D
*1
ERR xyy DTR FRM Digital trunk frame failure 2 D
*1
ERR xyy DTR RAI Digital trunk RAI reception 2 D
*1
ERR xyy DTR SYC Digital trunk out of
synchronization
2D
*1
ERR xyy LPR RAM Option Card RAM failure 2 A
ERR xyy LPR ROM Option Card ROM failure 2 A
ERR xyyz MODEM Modem failure 2 A
ERR xyy OGM LOS DISA OGM is lost 2 C
ERR xyy OPX POW OPX power failure 2 C
ERR SMDR Printer is not connected 2 B