ADTRAN 4200659L1, 4175043L2 STS-1 Active Alarm Traps, If enabled, the unit issues a trap when

Chapter 3. Configuration

STS-1 Active Alarm Traps

Trap	If enabled, the unit issues a trap when...
LOS	(Loss of Signal)
	The controller card has lost the network receive
	signal.
LOF	(Loss of Framing)
	The controller card detects a loss of framing
	from the network.
LOMF	(Loss of Multiframe)
	The controller card detects loss of H4
	multiframe from the network.
AIS-L	(Line Alarm Indication Signal)
	The controller card is receiving a line alarm
	indication signal. Line AIS defect is detected as
	a "111" pattern in bits 6, 7, and 8 of the K2 byte
	in five consecutive frames.
AIS-P	(Path Alarm Indication Signal)
	The controller card is receiving a path alarm
	indication signal. AIS-P is defined as all ones in
	bytes H1, H2, and H3 as well as all ones in the
	entire STS synchronous payload envelope.
RFI-L	(Line Remote Failure Indication)
	The controller card is receiving a line remote
	failure indication. RFI-L is declared when the
	incoming line remote defect indication (RDI-L,
	"110" pattern in bits 6,7, and 8 of the K2 line
	overhead byte) last for 2.5 +/- 0.5 seconds.
RFI-P	(Path Remote Failure Indication)
	The controller card is receiving a path remote
	failure indication. RFI-P is declared when the
	incoming path remote defect indication (RDI-P,
	"1" in bit 5 of the G1 path overhead byte for 5
	contiguous frames) last for 2.5 +/- 0.5 seconds.

3-26 MX2800 STS-1 User Manual 61200659L1-1