Cisco Fiber Optic Module GLC-LH-SM

Cisco Fiber Optic Module GLC-LH-SM:

Introducing Cisco Fiber Optic Module GLC-LH-SM:

The Cisco GLC-LH-SM is a hot-swappable SFP transceiver designed for Gigabit Ethernet applications. It supports 1Gbps data rate and operates on a 1310 nm wavelength using an LC duplex connector. Optimized for single-mode fiber (SMF), it provides a maximum reach of 10 km, and with a mode-conditioning patch cord, it can also work with multimode fiber up to 550 m.

This module complies with the IEEE 802.3z 1000BASE-LX/LH standard and is RoHS compliant, ensuring environmental safety. While the standard version does not include Digital Optical Monitoring (DOM), the GLC-LH-SMD variant offers this feature. Designed for reliable long-distance connections, it is commonly used in enterprise networks, data centers, and service provider environments.

Uses of Cisco Fiber Optic Module GLC-LH-SM:

The Cisco GLC-LH-SM module is widely used for providing high-speed, long-distance network connectivity in enterprise, campus, and service provider environments. It is specifically designed for Gigabit Ethernet over fiber and offers a cost-effective way to extend network reach over single-mode fiber. Its ability to support both single-mode and multimode (with a mode-conditioning patch cord) makes it versatile for mixed-fiber infrastructures.

Specifications of Cisco Fiber Optic Module GLC-LH-SM:

• Form Factor: Small Form-Factor Pluggable (SFP) transceiver, hot-swappable
• Data Rate: 1.25Gbps nominal line rate (supports Gigabit Ethernet and Fiber Channel 1G)
• Standard Compliance: IEEE 802.3z 1000BASE-LX/LH standard
• Wavelength: 1310 nm (long wavelength laser)
• Interface Connector: LC duplex connector
• Supported Fiber Types & Distance: Single-Mode Fiber (SMF): Up to 10 km (9/125 µm fiber) & Multimode Fiber (MMF): Up to 550m with mode-conditioning patch cord (62.5 µm fiber)
• Transmit Power Range: -9.5 dBm to -3 dBm (typical)
• Receive Sensitivity: -21 dBm (minimum)
• Maximum Input Power: -3 dBm
• Digital Optical Monitoring (DOM): Not available in GLC-LH-SM | Available in GLC-LH-SMD variant
• Operating Temperature Range: 0°C to 70°C (standard commercial temperature)
• Power Consumption: < 1 Watt (typically around 0.8W)
• Compliance & Safety: RoHS compliant | Laser safety per IEC 60825-1

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