Cabletron Systems SFCS-1000, SFCS-200BX, SFCS-200WG manual 4 622 Mbps OC-12c/STM-4c MM Module, Power

Hardware Specifications

C.2.4 622 Mbps OC-12c/STM-4c MM Module

The following specifications apply to network module NM-1/622MMSCC and NM-1/622MMSTC:

Description	Specification
Port Capacity	One SONET/SDH port per module
Data Rate	622.08 Mbps
Output Buffer	13,312 cell capacity
Media	Multimode fiber
Max. Line Length	500 m
Connectors	SC or ST
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	-20 to -14 dBm transmit power, -26 to -14 dBm
	receive sensitivity, 0 to 6 dB path attenuation
	for 62.5 ∝m fiber, 0 to 2 dB path attenuation for
	50 ∝m fiber
Core Diameter	62.5 ∝m, 50 ∝m
Fiber Diameter	125 ∝m
Wavelength	1270 - 1380 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 (Line BIP-24, Section BIP-8, Path BIP-8)
	errors, Header Check Sequence (HCS) errors,
	cells received (RxCells), cells transmitted
	(TxCells)
Compliance	ATM Forum AF-PHY-0046.000, ITU-T I.432,
	ANSI T1E1.2/93-020, T1S1/92-185, ITU-T
	G.957, Bellcore TR-NWT-000253

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