GLC-LH-SMD Overview
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.
This Figure shows the appearance of GLC-LH-SMD.
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