ADTRAN 1200657L2, 4200659L1, 4175043L2, 4200659L5 System Alarms, Description, Configuration

	Chapter 3. Configuration
System Alarms
Alarm	Description
Protection Switching
Card Failure	A controller card has failed. This is a critical
	alarm only when the back-up card is not
	installed or is not working properly.
Protection	All data has been routed from the primary card
Switch	to the stand-by card.
Communication	Communication between controller cards A and
Fail	B has failed.
System Timing
Clock Status	When enabled, an abnormal clock status
	condition will cause the CRITICAL relay to be
	thrown.The alarm will remain active until the
	condition clears or the alarm is acknowledged
	by the user.
Clock Source	When enabled, a change in the clock source will
Change	cause the NON-CRITICAL relay to be thrown.
	The alarm will remain active until the condition
	clears or the alarm is acknowledged by the user.
PRI EXT Clock	When enabled, a fault condition (LOS/AIS or
Status	FAIL) on the PRImary or SEConday external
	clock will cause the NON-CRITICAL relay to be
	thrown. The alarm will remain active until the
	condition clears or the alarm is acknowledged
	by the user.
SEC EXT Clock	When enabled, a fault condition (LOS/AIS or
Status	FAIL) on the PRImary or SEConday external
	clock will cause the NON-CRITICAL relay to be
	thrown. The alarm will remain active until the
	condition clears or the alarm is acknowledged
	by the user.

61200659L1-1 MX2800 STS-1 User Manual 3-23