Cisco Systems 3750-X, 3560-X manual

Appendix B Connector and Cable Specifications

Cable and Adapter Specifications

Table B-1	Fiber-Optic SFP and SFP+ Module Port Cabling Specifications (continued)
				Core	Modal
		Wavelength		Size/Cladding	Bandwidth
SFP Module		(nanometers)	Cable Type	Size (micron)	(MHz/km)1	Cable Distance
1000BASE-T		Standard 4	—	—	—	328 feet (100 m)
(GLC-T)		twisted-pair
		Category 5
		cable
1000BASE-LX/LH		1310	MMF3	62.5/125	500	1,804 feet (550 m)
(GLC-LH-SM)				50/125	400	1,804 feet (550 m)
				50/125	500	1,804 feet (550 m)
			SMF	G.6522	—	32,810 feet (10 km)
1000BASE-ZX		1550	SMF	G.6522	—	43.4 to 62 miles
(GLC-ZX-SM)						(70 to 100 km)4
CWDM		1470, 1490,	SMF	G.6522	—	62 miles (100 km)
		1510, 1530,
		1550, 1570,
		1590, 1610
10GBASE-LR		1310	SMF	G.6522		6.21 miles (10 km)
(SFP-10G-LR)
10GBASE-SR		850	MMF	62.5/125	160	85 feet (26 m)
(SFP-10G-SR)				62.5/125	200	108 feet (33 m)
				50/125	400	216 feet (66 m)
				50/125	500	269 feet (82 m)
				50/125	2000	6,561 feet (2000 m)
10GBASE-CX1		—		—	—
(SFP-H10GB-CU1M)			Twinax cable, 30-AWG			3 feet (1 m)
			cable assembly
(SFP-H10GB-CU3M)			Twinax cable, 30-AWG			9 feet (3 m)
			cable assembly
(SFP-H10GB-CU5M)			Twinax cable, 24-AWG			16 feet (5 m)
			cable assembly

1.Modal bandwidth applies only to multimode fiber.

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

3.A mode-conditioning patch cord is required. Using an ordinary patch cord with MMF or 1000BASE-LX/LH SFP modules and a short link distance can cause transceiver saturation and an elevated bit error rate (BER). When using the LX/LH SFP module with 62.5-micron diameter MMF, you must also install a mode-conditioning patch cord between the SFP module and the MMF cable on both the sending and receiving ends of the link. The mode-conditioning patch cord is required for link distances greater than 984 feet (300 m).

4.1000BASE-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.

Catalyst 3750-X and 3560-X Switch Hardware Installation Guide

B-6 OL-19593-01