HP 37717C manual SDH Alarm Indicators, Sonet Alarm Indicators Option

Getting Started

Monitoring Status

SDH Alarm Indicators

These are active when an SDH signal is received.

FRAME LOSS Loss Of Frame has been detected.

LOSS OF
POINTER	Loss of pointer has been detected.
MS-AIS	Multiplexer Section AIS has been detected.
AU-AIS	Path AIS has been detected.
CLOCK LOSS	The transmitter clock is not synchronized to the
	selected reference.
MS-RDI	Multiplexer Section RDI (FERF) has been detected.
HP-RDI	Path RDI (FERF) has been detected.
TU-AIS	TU Path AIS has been detected. .
LP-RDI	TU Path RDI (FERF) has been detected. .
POINTER
ADJUST	A pointer change in the foreground signal has been
	detected.

SONET Alarm Indicators (Option 120)

These are active when a SONET signal is received.

LOF/SEF	Loss of Frame or Severely Errored Frame has been
	detected. Status message on bottom of display states
	which has occurred.
LOP-P/LOP-V	Loss of Pointer has been detected.
AIS-L	Line AIS has been detected.
AIS-P	STS Path AIS has been detected.
CLOCK LOSS	The transmitter clock is not synchronized to the
	selected reference.
RDI-L	Line Remote Defect Indication (RDI) has been
	detected.
RDI-P	STS Path RDI has been detected.
AIS-V	Virtual Tributary path AIS has been detected.

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