Cisco Systems WSC3750X24TS Cable and Adapter Specifications, SFP Module Cable Specifications

Appendix B Connector and Cable Specifications

Cable and Adapter Specifications

For more information about XENPAK modules, see your XENPAK module documentation.

Note The 10-Gigabit Ethernet XENPAK modules are referred to as 10-Gigabit Ethernet module ports in the software documentation.

Console Port

The console port uses an 8-pin RJ-45 connector, which is described in Table B-4and Table B-5. The supplied RJ-45-to-DB-9 adapter cable is used to connect the console port of the switch to a console PC. You need to provide a RJ-45-to-DB-25 female DTE adapter if you want to connect the switch console port to a terminal. You can order a kit (part number ACS-DSBUASYN=) containing that adapter from Cisco. For console port and adapter pinout information, see Table B-4and Table B-5.

Cable and Adapter Specifications

These sections describe the cables and adapters used with Catalyst 3750 switches:

•SFP Module Cable Specifications, page B-5

•Two Twisted-Pair Cable Pinouts, page B-6

•Four Twisted-Pair Cable Pinouts for 10/100 Ports, page B-7

•Identifying a Crossover Cable, page B-8

•Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports, page B-9

•Crossover Cable and Adapter Pinouts, page B-9

SFP Module Cable Specifications

Table B-3lists the cable specifications for the fiber-optic SFP module connections. Each port must match the wave-length specifications on the other end of the cable, and for reliable communications, the cable must not exceed the required cable length. Copper 1000BASE-T SFP transceivers use standard four twisted-pair, Category 5 or greater cable at lengths up to 328 feet (100 meters).

Table B-3		Fiber-Optic SFP Module Port Cabling Specifications
			Wavelength		Core Size/Cladding	Modal Bandwidth
	SFP Module		(nanometers)	Fiber Type	Size (micron)	(MHz/km)1	Cable Distance
	100BASE-BX		1310 TX	SMF	G.6522	—	32,810 feet (10 km)
	(GLC-FE-100BX-D		1550 RX
	GLC-FE-100BX-U)
	100BASE-FX		1310	MMF	50/125	500	6,562 feet (2 km)
	(GLC-GE-100FX)				62.5/125	500	6,562 feet (2 km)
	100BASE-FX		1310	MMF	50/125	500	6,562 feet (2 km)
	(GLC-FE-100FX)				62.5/125	500	6,562 feet (2 km)
	100BASE-LX		1310	SMF	G.6522	—	32,810 feet (10 km)
	(100BASE-LX10)
					Catalyst 3750 Switch Hardware Installation Guide
	OL-6336-07							B-5