HP 37717C General Alarm Indicators, PDH / DSn Alarm Indicators, ATM Alarm Indicators, Jitter Alarm Indicators, AIS, Loss, Sync, Errors, Not RX, Remote M, VP Alarm

Getting Started

Monitoring Status

General Alarm Indicators

Loss No data transitions at the input port.

Pattern Loss The received data pattern is not in synchronization

	with the internally generated reference data.
Errors	A measured error has occurred. The indicator will
	remain lit for 100 ms.

PDH / DSn Alarm Indicators

These are active when a PDH / DSn signal is received

AIS	The All Ones AIS signal is detectable in the presence of
	a 1 in 10-3error rate.
Frame Loss	Frame alignment lost or out of alignment condition.

M/Frame Loss Multiframe alignment lost.

Remote Alarm Remote alarm, x-bit or yellow alarm bit is set.

Remote M/

Frame Alarm Remote Multiframe Alarm bit is set.

ATM Alarm Indicators

These are active when an ATM signal is received.

VP Alarm	Virtual Path AIS or FERF has been detected.
VC Alarm	Virtual Channel AIS or FERF has been detected.
Loss of Cell
Sync	Cell Sync Loss has been detected.
Selected Cell	The selected cell has not been received.Selected cell not
Not RX
	received.

Jitter Alarm Indicators

Jitter Unlock The jitter receiver has lost phase lock. Jitter measurement is suspended until lock is regained.

Jitter Hits A jitter hit has been detected.

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