Fault Management

Table 7-2: Alarms associated with a Chassis

Severity	Description	Notes
Major	An over temperature conditions has been detected. This is measured on the NI-2 card
TBD	An alarm has been detected on the station alarm 1 input	>R1
TBD	An alarm has been detected on the station alarm 2 input	>R1
TBD	An alarm has been detected on the station alarm 3 input	>R1
Minor	A single fan has failed	The power module will force the fan fans to full speed upon seeing one or more fan faults. This will occur independent of SW.
Major	Multiple fans have failed	The power module will force the fan fans to full speed upon seeing one or more fan faults. This will occur independent of SW.
Major	One or both of the fan trays have been removed or are missing
Minor	The power module is not detected by the NI-2. This will only occur if the Power Module has been provisioned.	>R1
Minor	The power module installed does not match the provisioned type	>R1
Major	The two power units installed are not compatible	>R1
NA	The circuit breaker on the power module has tripped due to an over-current fault	this condition triggers a separate (from critical/major/minor) relay contact closure. It will not be signalled through any other means (no SNMP or LED indicators)
Major	The input voltage to one or both of the power modules is outside of its acceptable range
Major	The current through one or both of the power modules is excessive.
Major	The fan output voltage from one or both of the power modules is outside of its acceptable range
Major	One or both of the power units are reporting a fault condition. The fault is either over temp, output failure or input failure.
Major	The power supply is over its temperature limit

Table 7-3: Alarms associated with a DMT Card

Severity	Description	Notes
Info	Module was detected (Module software was loaded)
Minor	Module reset unexpectedly

Table 7-4: Alarms associated with an ADSL Line

Severity	Description	Notes
Minor	ATU-C port failure
Minor	Upstream Rate not above Min_rate
Minor	Downstream Rate not above Min_rate
Minor	The modem is reporting an near end LOS, LOF, or LOCD or a far end LPR failure.	This only occurs if the line is enabled to alarm on failures.

Table 7-5: Alarms associated with an NI2

Severity	Description	Notes
Major	Loss of timing reference
	Various buffer overflows	>R1

Table 7-6: Alarms associated with an OC3 Port

Severity	Description	Notes
Critical	SONET: Loss of Cell Delineation
Minor	SONET: Incorrect Payload type Signal Label Mismatch
Critical	SONET: Path RDI received. This is equivalent to Path FERF
Critical	SONET: Path AIS received
Critical	SONET: Loss of Pointer condition
Critical	SONET: Line RDI received. This is equivalent to Line FERF
Critical	SONET: Line AIS received
Critical	SONET: Loss of Frame condition
Critical	SONET: Loss of Signal detected by SONET device
Critical	The OC3 (if this is a OC3 module) or STM1 (if this is an STM1 module) port has failed.	>R1