Cisco GLC-LH-SMD: Versatile Gigabit SFP for Fiber Networks

The Cisco GLC-LH-SMD is a reliable 1000BASE-LX/LH SFP transceiver module, designed for Gigabit Ethernet connections over both single-mode and multimode fiber. It provides essential high-speed connectivity for a variety of networking environments, ensuring flexible deployment options. While primarily used for linking Cisco Network Switch devices, its role is foundational for any modern wired or wireless setup.

Flexible Fiber Connectivity

This SFP supports diverse fiber types: up to 10 kilometers over single-mode fiber and up to 550 meters over multimode fiber. This versatility makes it ideal for mixed fiber environments.

Real-Time Performance Monitoring

Equipped with Digital Diagnostic Monitoring (DDM), the GLC-LH-SMD allows IT teams to monitor key parameters like optical input/output power, temperature, and voltage in real-time. This simplifies troubleshooting and network maintenance.

Standardized & Hot-Swappable

As an industry-standard SFP, it's hot-pluggable for easy installation or removal without disrupting network operations. It's compatible with a wide range of Cisco devices supporting SFP ports.

Enhancing Network Infrastructure

The GLC-LH-SMD is critical for extending gigabit links between buildings or across campus networks. It provides the necessary optical backbone for connecting Cisco Network Switch devices and supplying high-bandwidth uplinks to support Cisco Wireless AP deployments.

Cisco GLC-LH-SMD Detailed Parameters

Parameter Category	Parameter	Specification
Device Type	Model	GLC-LH-SMD
	Product Type	SFP (Small Form-Factor Pluggable) Transceiver
	Standard	1000BASE-LX/LH
	Connector	Duplex LC
Performance	Data Rate	1.25 Gbps (Gigabit Ethernet)
	Max Distance (Single-Mode)	10 km (6.2 miles) on G.652 SMF
	Max Distance (Multi-Mode)	550 m (1804 feet) on 50/125 µm MMF
		550 m (1804 feet) on 62.5/125 µm MMF
Optical Characteristics	Wavelength	1310 nm
	DDM/DOM Support	Yes (Digital Diagnostic Monitoring)
	Laser Type	FP (Fabry-Perot) Laser
Power	Power Consumption	Typically < 1W
	Voltage	3.3V
Physical Specifications	Dimensions (H x W x D)	13.4 x 12.4 x 56.6 mm (0.53 x 0.49 x 2.23 inches)
	Weight (Approximate)	17 g (0.04 lbs)
Environmental	Operating Temperature	0°C to 70°C (32°F to 158°F)
	Storage Temperature	-40°C to 85°C (-40°F to 185°F)
	Operating Humidity	10% to 90% non-condensing
Compliance	Standards	IEEE 802.3z, SFF-8472 (MSA Compliant)
	Safety	Class 1 Laser Product