GLC-LH-SMD – Cisco Compatible 1000BASE-LX/LH SFP Transceiver 1310nm 10km

Product Overview

The  Wlon GLC-LH-SMD compatible SFP transceiver provides a high-performance, cost-effective replacement for the original Cisco 1000BASE-LX/LH SFP module. Designed to meet the stringent demands of modern enterprise networks, this module guarantees 100% compatibility with Cisco switches, routers, and firewalls.

Unlike the older GLC-LH-SM model, our GLC-LH-SMD features Digital Optical Monitoring (DOM) support, allowing network administrators to monitor parameters such as optical output power, input power, temperature, and voltage in real-time. It operates at a wavelength of 1310nm and supports link lengths of up to 10km over single-mode fiber (SMF).

Key Features

• Broad Compatibility: Pre-coded to function identically to the Cisco GLC-LH-SMD hardware.

• Versatile Reach: Supports 1000BASE-LX standard for 10km long-haul transmission on SMF.

• Legacy Support: Can also work on Multimode fiber (up to 550m) when used with a mode conditioning patch cable.

• DOM Capability: Fully compliant with SFF-8472 for digital diagnostic monitoring (The "D" in SMD).

• Reliability: Industrial-grade components ensuring low EMI and long lifespan (MTBF > 5,000,000 hours).

Technical Specifications

Application Scenarios

Our GLC-LH-SMD compatible module is the workhorse of Gigabit networks, suitable for:

1. Enterprise Uplinks: Connecting access switches to distribution switches in a campus LAN environment.

2. ISP Networks: Providing reliable 1G connections for Internet Service Providers.

3. Server Connectivity: High-speed Gigabit links for data center servers.

4. Device Replacement: A budget-friendly, drop-in replacement for failed or aging Cisco SFP modules.

*Note: When using LX/LH modules over OM1/OM2 legacy multimode fiber, a Mode Conditioning Patch Cable (MCP) is recommended to avoid Differential Mode Delay (DMD).