Cisco GLC-LH-SM Gigabit Single Mode 1310nm 10KM SFP Fiber Module GLCLHSM

Description:

The Cisco GLC-LH-SM Gigabit Ethernet SFP Transceiver is a single-mode fiber optical module used in Cisco networking systems to provide long-distance Gigabit Ethernet connectivity over fiber optic infrastructure. It operates at a 1310 nm wavelength and supports transmission distances of up to 10 kilometers over single-mode fiber while maintaining reliable high-speed data communication. Commonly installed in Cisco switches, routers, and other networking devices equipped with SFP ports, this module enables stable fiber uplink connections between access, distribution, and core network layers. Network administrators, maintenance teams, and system integrators use this transceiver for expanding fiber network connectivity, replacing faulty SFP modules, or maintaining long-distance Gigabit Ethernet links in enterprise network environments.

Applications:

The Cisco GLC-LH-SM SFP module is used in enterprise, campus, and data center networks to provide Gigabit Ethernet connectivity over single-mode fiber infrastructure. It is commonly deployed for switch-to-switch uplinks, backbone fiber connections, and long-distance network links between buildings or network distribution points. Organizations install this module to ensure reliable fiber communication and maintain stable high-speed connectivity across extended network environments.

Technical Specifications:

• Brand: Cisco
• Manufacturer Part Number (MPN): GLC-LH-SM
• Alternate Part Number: GLCLHSM
• Product Type: Gigabit Ethernet SFP Transceiver Module
• Interface Type: Mini-GBIC / SFP
• Data Rate: 1 Gbps (Gigabit Ethernet)
• Optical Wavelength: 1310 nm
• Fiber Type: Single-Mode Fiber (SMF)
• Maximum Transmission Distance: Up to 10 km
• Connector Type: Duplex LC
• Optical Standard: 1000BASE-LX/LH
• Compliance Standard: IEEE 802.3z
• Compatibility: Cisco switches and routers with SFP ports
• Form Factor: Hot-swappable SFP module

Common Replacements:

• Cisco GLC-LH-SMD
• Cisco GLC-SX-MMD
• Cisco GLC-ZX-SM