SFP Cisco GLC-LH-SM Compatible 1000BASE-LX SMF 1310nm 10km SFP Transceiver

The SFP Cisco GLC-LH-SM Compatible 1000BASE-LX SMF is a high-performance, cost-effective small form factor pluggable (SFP) transceiver designed for 1000BASE-LX Gigabit Ethernet and 1G Fiber Channel applications. Fully compliant with the SFP Multi-Sourcing Agreement (MSA), this transceiver can be utilized in MSA-compliant networking equipment.

This 1000BASE-LX SFP transceiver is thoroughly tested for compatibility with Cisco networking equipment, including Ethernet switches, routers, network interface cards (NICs), and media converters. It serves as an economical and reliable alternative to the Cisco GLC-LH-SM 1000BASE-LX SMF 1310nm 10km SFP Transceiver, providing significant savings for system integrators, distributors, and end-users in network infrastructure and fiber cabling solutions.

Key Features

  • Form Factor: SFP
  • Data Rate: 1.25Gb/s
  • Wavelength: 1310nm
  • Fiber Type: Single-Mode Fiber (SMF)
  • Max Distance: 10km on 9/125µm SMF
  • Connector: LC Duplex
  • Digital Diagnostic Monitoring (DDM): Supported
  • Power Supply: Single 3.3V
  • Power Consumption: Low
  • Metal Enclosure: Provides lower EMI
  • Hot-Pluggable: Easy installation and maintenance
  • Compliance: ROHS compliant and Lead-Free

Technical Specifications

Attribute Details
Compatible OEM Part Number GLC-LH-SM
Optcore Part Number OSP1250-3120DCR-CSC
Form Factor SFP
Data Rate 1.25Gb/s
Wavelength 1310 nm
Fiber Type SMF
Max Distance 10 km
Optical Components FP/PIN
Transmitter Power -9 ~ -3 dBm
Extinction Ratio > 9 dB
Receiver Sensitivity < -22 dBm
Receiver Overload > -3 dBm
Connector LC Duplex
Digital Diagnostic Monitoring Yes
Operating Temperature Range 0°C to 70°C
Storage Temperature Range -40°C to 85°C
Weight 0.025 kg
Compliance IEC/EN 61000-4-2, IEC-60825, FDA 21CFR 1040.10 and 1040.11, RoHS


  • 1x Fiber Channel
  • Switch to Switch Interface
  • Gigabit Ethernet
  • Switched Backplane Applications
  • Router/Server Interface
  • Other Optical Links

Compliance and Certifications

  • IEC/EN 61000-4-2
  • IEC-60825
  • FDA 21CFR 1040.10 and 1040.11
  • RoHS

The SFP transceiver offers a reliable, cost-effective solution for your network infrastructure, ensuring seamless integration with Cisco equipment and providing high-quality performance for various optical link applications.

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