Cisco Systems 3120 manual X2 Product Transmit Power Receive Power Number, DBm Wavelength nm

Appendix B Connector and Cable Specifications

Cable and Adapter Specifications

Table B-1	X2 Transceiver Port Cabling Specifications (continued)
					Modal
X2 Product		Wavelength		Core Size	Bandwidth	Maximum Cabling
Number		(nm)	Cable Type	(microns)	(MHz/km)	Distance
X2-10GB-CX4		—	InfiniBand	—	—	49 feet (15 m)
			(copper)
X2-10GB-LRM		1310	MMF	62.5	160	220 m (722 feet)
				62.5	200	220 m (722 feet)
				50.0	400	220 m (722 feet)
				50.0	500	220 m (722 feet)
				50.0	1500	220 m (722 feet)

1. Mode conditioning patch cord is recommended for MMF applications.

Table B-2	X2 Transceiver Optical Send and Receive Specifications
					Transmit and
X2 Product			Transmit Power	Receive Power	Receive
Number		Transceiver Type	(dBm)	(dBm)	Wavelength (nm)
X2-10GB-SR		10GBASE-SR,	–11(max)	–1.0 (max)	840 to 860
		850-nm MMF	–7.3 (min)	–9.9 (min)
X2-10GB-LX4		10GBASE-LX4	–0.5 per lane (max)	–0.5 (max)	Four lanes; overall
		WWWDM	—	–14.4 per lane	range: 1269 to 1356
		1300-nm MMF
X2-10GB-LRM		10GBASE-LR,	0.5 (max)	0.5 (max)	1260 to 1355
		1310-nm MMF	–6.5 (min)	–8.4 (min average)
				and –6.4 (min in
				OMA)

1.The launch power shall be the lesser of the Class 1 safety limit or the maximum receive power. Class 1 laser requirements are defined by IEC 60825-1: 2001.

Cisco Catalyst Blade Switch 3120 for HP Hardware Installation Guide

OL-12246-01 B-5