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Cisco GLC-LH-SMD SFP Module - 1 x LC/PC Duplex 1000Base-LX/LH Gigabit Ethernet Single-mode Fiber
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Product Features
Technical Overview
This transceiver operates on the 1000Base-LX/LH protocol, supporting data transfer rates up to 1000 Mbps (1 Gbps) over single-mode optical fiber. The LX/LH designation indicates its suitability for long-haul applications, leveraging 1310nm wavelength optics to maintain signal strength over distances far exceeding typical multimode solutions.
The module's electrical interface complies with the Gigabit Ethernet standard, while its optical interface uses a duplex LC/PC connector type, ensuring precise alignment and low insertion loss for stable fiber connections. It is hot-swappable, allowing for installation or replacement without powering down the host device, which minimizes network downtime during maintenance or upgrades.
This section brings together practical product details such as Application/Usage, Total Number of Ports, Connector Type, Interfaces/Ports Details, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
The GLC-LH-SMD module brings several distinct advantages to network deployments requiring robust, long-distance fiber connectivity.
Long-Distance Performance
Utilizes single-mode fiber and 1000Base-LX/LH technology to support reliable Gigabit Ethernet links over extended distances, ideal for campus backbones, metropolitan area networks, and data center interconnects.
- Minimal signal loss over hundreds of miles
- Superior integrity for critical data paths
High Compatibility & Interoperability
Compliant with the Multisource Agreement (MSA), ensuring interoperability with a wide range of Cisco Catalyst, Nexus, and router series. This broad compatibility simplifies sourcing and deployment across mixed-vendor environments.
- Tested with Catalyst 2960, 3560, 3750, 4500, 6500 series
- Works with Cisco Nexus 7000 and 7200/7300/7600 routers
Operational Flexibility
The hot-swappable design allows for tool-less insertion and removal, facilitating quick swaps during network reconfigurations or failures without disrupting other services.
- No downtime for module replacement
- Simplifies inventory and field spares management
Deployment / Use Cases
This SFP module is tailored for network segments where gigabit-speed data must traverse considerable distances with high reliability. Its single-mode fiber support and long-haul optics make it a fit for specific infrastructure scenarios.
Common deployments include connecting switches between buildings in a campus network, linking data centers across a metropolitan area, or providing high-speed uplinks from access-layer switches to core distribution layers. It is also used in service provider networks for aggregating customer traffic over fiber backbones.
Campus Network Backbone
Deploy between wiring closets and main distribution frames to extend Gigabit Ethernet across building complexes without signal degradation.
Data Center Interconnect
Connect top-of-rack switches to aggregation or core switches over single-mode fiber, supporting high-bandwidth server-to-server and storage traffic.
Physical Profile
The module features a compact, industry-standard SFP footprint with dimensions of 0.53" (13.40 mm) wide, 2.22" (56.50 mm) deep, and 0.33" (8.50 mm) high, weighing approximately 2.65 oz (75 g). This small form factor allows high-density installations in switch chassis without obstructing adjacent ports or airflow. The robust metal housing provides electromagnetic shielding and durability for continuous operation in data center or telecom environments.
- Width
- 0.53" (13.40 mm)
- Depth
- 2.22" (56.50 mm)
- Height
- 0.33" (8.50 mm)
- Weight
- 2.65 oz (75 g)
Highlights
- 1000Base-LX/LH Gigabit Ethernet SFP module for single-mode fiber
- LC/PC duplex connector ensures reliable optical connections
- Hot-swappable SFP (mini-GBIC) form factor for easy installation
- Supports data rates up to 1000 Mbps over long distances
- Compatible with a wide range of Cisco Catalyst and Nexus switches
- Multisource Agreement (MSA) compliant for interoperability
- Compact dimensions: 0.53" x 2.22" x 0.33" (13.40 x 56.50 x 8.50 mm)
- Ideal for campus backbones and data center interconnects
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | GLC-LH-SMD |
| Brand Name | Cisco |
| Product Model | GLC-LH-SMD |
| Product Name | SFP (mini-GBIC) Module |
| Product Type | SFP (mini-GBIC) |
| Technical Information | |
| Application/Usage | Data Networking,Optical Network |
| Interfaces/Ports | |
| Total Number of Ports | 1 |
| Connector Type | LC/PC |
| Interfaces/Ports Details | 1 x LC/PC Duplex 1000Base-LX/LH Network |
| Media & Performance | |
| Media Type Supported | Optical Fiber |
| Fiber Mode Supported | Single-mode |
| Ethernet Technology | Gigabit Ethernet |
| Network Technology | 1000Base-LX/LH |
| Physical Characteristics | |
| Form Factor | Hot-swappable |
| Height | 0.33" (8.50 mm) |
| Width | 0.53" (13.40 mm) |
| Depth | 2.22" (56.50 mm) |
| Weight (Approximate) | 2.65 oz (75 g) |
| Miscellaneous | |
| Compatibility | Multisource Agreement Compliant Catalyst Express 500 Catalyst Express 520 Cisco ME 3400 Cisco ME 4900 Series Cisco ME 6500 Series Catalyst 2940 Series Catalyst 2950 Series Catalyst 2960 series Catalyst 2960-S Series Catalyst 2970 Series Catalyst 3560 Series Catalyst 3560-E Series Catalyst 3560-X Series Catalyst 3750 Series Catalyst 3750-E Series Catalyst 3750-X Series Cisco IE3010 Series Catalyst 4500 Series Catalyst 4900 Series Catalyst 6500 Series Cisco Catalyst 2360 Series Cisco Catalyst 3000 Series Catalyst 3100 Blade Switches Cisco Nexus 7000 Series Cisco 7200 Series Router Cisco uBR7200 Series Cisco 7300 Series Router Cisco 7600 Series Router Cisco uBR10000 Series Router Shared Port Adapters (SPAs) Cisco MWR 2941 Mobile Wireless Routers |
| Warranty | |
| Limited Warranty | 90 Day |
FAQ
What type of fiber cable does the Cisco GLC-LH-SMD module require?
The GLC-LH-SMD module requires single-mode fiber optic cables with LC/PC connectors. Single-mode fiber is designed for long-distance transmission, typically using a 9/125 micron core/cladding structure, and is necessary to achieve the full reach and performance of the 1000Base-LX/LH standard. Ensure your fiber patch cables are terminated with LC/PC duplex connectors to match the module's interface.
What is the maximum data transfer speed of this SFP module?
This module supports a maximum data transfer speed of 1000 Mbps (1 Gigabit per second) as per the Gigabit Ethernet and 1000Base-LX/LH standards. It operates at full-duplex, meaning it can simultaneously send and receive data at this rate, providing efficient bandwidth for network aggregation, server connections, and backbone links.
Is the Cisco GLC-LH-SMD module hot-swappable?
Yes, the module is hot-swappable. You can insert or remove it from a compatible switch's SFP slot without powering down the switch or disrupting other network operations. This feature is essential for maintenance, upgrades, or quick replacements in live environments, minimizing downtime and simplifying network management.
Which Cisco switch models are compatible with this SFP?
The module is compatible with a broad range of Cisco switches and routers, including Catalyst Express 500/520, ME 3400/4900/6500 series, Catalyst 2940/2950/2960/2970 series, Catalyst 3560/3750 series (including -E and -X variants), Catalyst 4500/4900/6500 series, Cisco IE3010, Nexus 7000 series, and 7200/7300/7600/uBR series routers. It is Multisource Agreement compliant, ensuring interoperability across these platforms.
What does 1000Base-LX/LH mean for network deployment?
1000Base-LX/LH refers to a Gigabit Ethernet standard for long-wavelength (1310nm) transmission over single-mode fiber. The 'LX' indicates long wavelength, and 'LH' stands for long haul, denoting its capability to support distances significantly longer than standard multimode fiber links. This makes it suitable for backbone connections, inter-building links, and metropolitan area networks where fiber runs exceed typical campus distances.
Does this SFP module support Digital Optical Monitoring (DOM)?
product details do not include DOM or Digital Diagnostic Monitoring (DDM) support. This module focuses on core 1000Base-LX/LH functionality for data transmission over single-mode fiber. For monitoring capabilities like real-time temperature, voltage, or optical power levels, you would need to verify specific DOM-supported models within the Cisco SFP portfolio.
| Qty | Price | Available |
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