10 622 Mbps OC-12c/STM-4c SM Module | Cabletron Systems 9A000

Hardware Specifications

C.2.10 622 Mbps OC-12c/STM-4c SM Module

The following speciﬁcations apply to network module NM-1/622SMIRC:

Description	Speciﬁcation

Port Capacity	One SONET/SDH port per module

Data Rate	622.08 Mbps

Output Buffer	13,312 cell capacity

Media	Single mode ﬁber

Max. Line Length	~14 km

Connectors	FC

Line Encoding	Non-Return to Zero (NRZ)

Framing	STS-12c/STM-4c

Clock Accuracy	±20 ppm

Timing	Primary and secondary 8kHz reference from
	internal (default) or network

Loopbacks	Transmit and receive loopbacks

Power	-8 to -15 dBm transmit power, -8 to -28 dBm
	receive sensitivity, 0 to 13 dB path attenuation

Core Diameter	10 ∝m

Fiber Diameter	125 ∝m

Wavelength	1310 nm

Statistics/Alarms	SONET/SDH statistics include Loss of Signal
	(LOS), Loss of Frame (LOF), Loss of Pointer
	(LOP), Far End Block Errors (FEBE), Alarm
	Indication Signal (AIS), Far End Receive Fail-
	ure (FERF), Yellow Alarm, Bit Interleaved Par-
	ity errors (Line BIP-24, Section BIP-8, Path
	BIP-8), Header Check Sequence errors (HCS),
	cells received (RxCells), cells transmitted
	(TxCells)

Compliance	ATM Forum STS-12c UNI v3.1, ITU-T I.432,
	ANSI T1E1.2/93-020, T1S1/92-185, ITU-T
	G.957, Bellcore TR-NWT-000253

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