Nortel Networks DCT1900 manual Comment to Fault Codes, Service

Technical Product Manual - DCT1900

Maintenance, Service Messages

4.3.1 Comment to Fault Codes

zFault 17 ... 26, 28, 29, 41 CPU faults. Replacement of the CPU requires saving of its data to PC first by "System Manager-Save/Restore".If not possible any more, restore the new CPU with the most recent save file on disk (EEPROM.SAV and SPU_S.SAV).

z Fault 35, 36, 37	These faults may disappear automatically. The DTU sends a
	message to T&M and T&M clears the fault status: L1 = AVE
	and L2 = AVE. However, the service error message remains
	and the general alarm as well. They must be cleared by "Clear
	Service."
z Fault 52	Maintenance personnel must verify if the subject is operational
	or not. It may occur that a subject is given "AVE," but not
	working any more. If not working, reset the subject and wait for
	new fault message. If operational then simply wait to see if the
	fault reappears.

4-4	Maint-DCT1900/R8/mw
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