Cisco Systems OL-23421-02 manual Cable Pinouts, Bandwidth Type of SFP Module Nanometers Fiber Type

Appendix A Cable and Connectors

Cables and Adapters

Table A-1	Fiber-Optic SFP Module Port Cabling Specifications (continued)
				Core	Modal
		Wavelength		Size/Cladding	Bandwidth
Type of SFP Module		(nanometers)	Fiber Type	Size (micron)	(MHz/km)1	Cable Distance
100BASE-ZX		1550	SMF	9/10	—	43.5 miles (70 km)
(SFP-GE-Z)			SMF	8		62 miles (100 km)
100BASE-EX		1310	SMF	G.652	—	24.9 miles (40 km)2
(GLC-EX-SMD)

1.Modal bandwidth applies only to multimode fiber.

2.1000BASE-ZX SFP modules can send data up to 62 miles (100 km) by using dispersion-shifted SMF or low-attenuation SMF; the distance depends on the fiber quality, the number of splices, and the connectors.

3.A mode-field diameter/cladding diameter = 9 micrometers/125 micrometers.

Note When the fiber-optic cable span is less than 15.43 miles (25 km), insert a 5-decibel (dB) or 10-dB inline optical attenuator between the fiber-optic cable plant and the receiving port on the 1000BASE-ZX SFP module.

Cable Pinouts

Figure A-4

Switch

3 TD+

6 TD–

1 RD+

2 RD–

Figure A-5

Switch

3 TD+

6 TD–

1 RD+

2 RD–

Two Twisted-Pair Straight-Through Cable Schematic for 10/100 Ports

Router or PC

3 RD+

6 RD–

1 TD+	8
2 TD–	H557

Two Twisted-Pair Crossover Cable Schematic for 10/100 Ports

Switch

3TD+

6TD–

1 RD+	H5579
2 RD–

Cisco Connected Grid Ethernet Switch Module Interface Card Getting Started Guide

A-4 OL-23421-02