Cisco 3750G-12S Hardware Installation Guide - Page 113
Cable and Adapter Specifications, SFP Module Cable Specifications - glc t
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Appendix B Connector and Cable Specifications Cable and Adapter Specifications 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-8 • Crossover Cable and Adapter Pinouts, page B-9 SFP Module Cable Specifications Table B-3 lists 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 SFP Module 100BASE-BX (GLC-FE-100BX-D GLC-FE-100BX-U) 100BASE-FX (GLC-GE-100FX) 100BASE-FX (GLC-FE-100FX) 100BASE-LX (100BASE-LX10) 1000BASE-BX10-D (GLC-BX-D) 1000BASE-BX10-U (GLC-BX-U) 1000BASE-SX (GLC-SX-MM) 1000BASE-LX/LH (GLC-LH-SM) Wavelength (nanometers) 1310 TX 1550 RX Fiber Type SMF Core Size/Cladding Modal Bandwidth Size (micron) (MHz/km)1 Cable Distance G.6522 - 32,810 feet (10 km) 1310 MMF 50/125 500 62.5/125 500 1310 MMF 50/125 500 62.5/125 500 1310 SMF G.6522 - 1490 TX SMF G.6522 - 1310 RX 1310 TX SMF G.6522 - 1490 RX 850 MMF 62.5/125 160 62.5/125 200 50/125 400 50/125 500 1310 MMF3 62.5/125 500 50/125 400 50/125 500 SMF G.6522 - 6,562 feet (2 km) 6,562 feet (2 km) 6,562 feet (2 km) 6,562 feet (2 km) 32,810 feet (10 km) 32,810 feet (10 km) 32,810 feet (10 km) 722 feet (220 m) 902 feet (275 m) 1640 feet (500 m) 1804 feet (550 m) 1804 feet (550 m) 1804 feet (550 m) 1804 feet (550 m) 32,810 feet (10 km) OL-6336-10 Catalyst 3750 Switch Hardware Installation Guide B-5