Description Cisco GLC-LH-SMD Gigabit SFP transceiver module, MMF/SMF Multimode & SingleMode Cisco GLC-LH-SMD 1000BASE-LX/LH SFP is made for Both Multimode and Single-Mode Fibers. The 1000BASE-LX/LH SFP, compatible with the IEEE 802.3z 1000BASE-LX standard, operates on standard single-mode fiber-optic link spans of up to 10 km and up to 550 m on any multimode fibers. When used over legacy multimode fiber type, the transmitter should be coupled through a mode conditioning patch cable. 1300-nm wavelength, extended operating temperature range and DOM support, dual LC/PC connector. The table provides cabling specifications for the SFPs that you install in the Gigabit Ethernet port. Note that all SFP ports have LC-type connectors, and the minimum cable distance for all SFPs listed (multimode and single-mode fiber) is 6.5 feet (2 m). SFP Port Cabling Specifications Product Wavelength (nm) Fiber Type Core Size (μm) Modal Bandwidth (MHz* Km)*** Operating Distance (m) 1000BASE-SX(GLC-SX-MMD ) 850 MMF 62.5 160 (FDDI-grade) 220 (722 ft) 62.5 200 (OM1) 275 (902 ft) 50 400 (400/400) 500 (1,640 ft) 50 500 (OM2) 550 (1,804 ft) 50 2000 (OM3) 1000 (3281 ft) 1000BASE-LX/LH(GLC-LH-SMD) 1310 MMF* 62.5 500 550 (1,804 ft) 50 400 550 (1,804 ft) 50 500 550 (1,804 ft) SMF -** – 10,000 (32,821 ft) 1000BASE-EX 1310 SMF -** – 40,000 (131,234 ft) 1000BASE-ZX(GLC-ZX-SM ) (GLC-ZX-SMD ) 1550 SMF – – Approximately 70 km depending on link loss 1000BASE-BX-U 1310 SMF -** – 10,000 (32,821 ft) 1000BASE-BX-D 1490 SMF -** – 10,000 (32,821 ft) *A mode-conditioning patch cord, as specified by the IEEE standard, is required regardless of the span length. Note how the mode conditioning patch cord for 62.5-μm fibers has a different specification from the mode-conditioning patch cord for 50-μm fibers. **ITU-T G.652 SMF as specified by the IEEE 802.3z standard. ***Specified at transmission wavelength. GLC-LH-SMD Specification SFP Port Cabling Specifications Product Wavelength (nm) Fiber Type Core Size (μm) Modal Bandwidth (MHz* Km)*** Operating Distance (m) 1000BASE-SX 850 MMF 62.5 160 (FDDI-grade) 220 (722 ft) 62.5 200 (OM1) 275 (902 ft) 50 400 (400/400) 500 (1,640 ft) 50 500 (OM2) 550 (1,804 ft) 50 2000 (OM3) 1000 (3281 ft) 1000BASE-LX/LH 1310 MMF* 62.5 500 550 (1,804 ft) 50 400 550 (1,804 ft) 50 500 550 (1,804 ft) SMF -** – 10,000 (32,821 ft) 1000BASE-EX 1310 SMF -** – 40,000 (131,234 ft) 1000BASE-ZX(GLC-ZX-SMD) 1550 SMF – – Approximately 70 km depending on link loss 1000BASE-BX-U 1310 SMF -** – 10,000 (32,821 ft) 1000BASE-BX-D 1490 SMF -** – 10,000 (32,821 ft) Note: *A mode-conditioning patch cord, as specified by the IEEE standard, is required regardless of the span length. Note how the mode conditioning patch cord for 62.5-μm fibers has a different specification from the mode-conditioning patch cord for 50-μm fibers.
