CISCO GLC-LH-SMD= 1000BASE-LX/LH SFP Transceiver Module (MMF/SMF, 1310nm, DOM)
SKU: GLC-LH-SMD=Cisco › Cisco Modules & Accessories
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The distributor has not yet confirmed the latest price and availability (last checked Sep 30, 2026)
092-251-4017Awaiting stock confirmation5 years manufacturer's warranty
GenuineFree delivery from ฿5,000Tax invoice
SFP module for Cisco switches supporting long-distance fiber optic connectivity for both multimode and single-mode fiber, with real-time DOM monitoring features
Key features
- Supports up to 10 km transmission distance on single-mode fiber
- Connects up to 550 meters on multimode fiber using a dedicated patch cable
- Features DOM for real-time monitoring of transmit and receive signal conditions
- Uses 1310 nm wavelength for long-distance signal transmission
- Designed for use with Cisco switches and routers that support SFP
Product description
The Cisco GLC-LH-SMD= is an SFP transceiver for 1 Gbps network connectivity over fiber optic cable, supporting both multimode fiber (MMF) and single-mode fiber (SMF) with a wavelength of 1310 nm, ideal for long-distance LAN/WAN connections in enterprise environments. It can transmit signals up to 10 kilometers over single-mode fiber and up to 550 meters over multimode fiber using a mode conditioning patch cable. This module features DOM (Digital Optical Monitoring) for real-time monitoring of transmit and receive signal power levels, enabling precise link health tracking. The module undergoes rigorous testing and verification to meet Cisco's standards and is compatible with Cisco switches and routers running IOS.
Pros and limitations
Pros
- Supports up to 10 km long-distance connectivity on single-mode fiber
- Features DOM for real-time monitoring of transmit and receive signal conditions
- Supports both multimode and single-mode fiber for flexible connectivity
- Tested and certified by Cisco for compatibility with IOS-based devices
- More cost-effective than new modules, ideal for upgrading legacy systems
Limitations
- Requires a dedicated patch cable for multimode fiber connections
Who it is for
Ideal for organizations requiring long-distance connectivity between switches or routers via fiber optics, especially in LAN/WAN systems that demand stability and real-time link monitoring
Connectivity
Fiber Optic
Specifications (26)
- Brand
- CISCO
- Data Rate
- 1 Gbps
- Fiber Type
- MMF / SMF
- Form Factor
- SFP
- Product Type
- SFP Transceiver Module
- Certification
- Cisco-certified
- Compatibility
- Cisco IOS-based switches and routers
- Connector Type
- LC
- Humidity Range
- 5% to 95% non-condensing
- Core Size (μm)
- 62.5 / 50
- Wavelength (nm)
- 1310
- Reach on MMF (m)
- 550
- Power Consumption
- Low (typical for SFP modules)
- Reach on SMF (km)
- 10
- Tested Components
- Optical transmit and receive power, DOM functionality, compatibility
- Interface Standard
- 1000BASE-LX/LH
- Compliance Standards
- IEEE 802.3z, SFF-8472
- Operating Distance (m)
- 10,000 (SMF) | 550 (MMF)
- Receive Power Range (dBm)
- -3 to -20
- Storage Temperature Range
- -40 to 85 °C
- Transmit Power Range (dBm)
- -3 to -9.5
- Operating Temperature Range
- 0 to 70 °C
- Digital Optical Monitoring (DOM)
- Support
- Maximum Channel Insertion Loss (dB)
- 6 (G.652 SMF)
- Mode Conditioning Patch Cable Required
- Yes (for MMF)
- Transmit and Receive Wavelength Range (nm)
- 1270 to 1355
Datasheets and manuals straight from the manufacturer — select a document to open or download it.
10 questions
Frequently asked questions about this product
Compiled from manufacturer information
Which Cisco switch models is the GLC-LH-SMD= compatible with?
This module is compatible with Cisco switches and routers that support SFP and run IOS, such as the Cisco 2960, 3560, 3750, 4500, 6500 series, as well as routers in the ASR and 7000 series, provided the SFP port supports the 1000BASE-LX/LH standard
Can it be used with multimode fiber optic cables?
Yes, this module can operate over multimode (MMF) cable up to 550 meters, but requires a specific mode conditioning patch cable for optimal performance
Does it have DOM feature?
Yes, this module supports Digital Optical Monitoring (DOM), allowing real-time monitoring of transmit and receive signal power levels through network management systems such as Cisco IOS
How far can it be used with single-mode fiber?
This module can transmit signals up to 10 kilometers (10,000 meters) over 9/125 µm single-mode fiber directly, making it ideal for long-distance connections in enterprise networks
Is a special patch cable required?
Yes, a mode conditioning patch cable is required for multimode fiber (MMF) operation to balance optical modes and extend transmission distance to up to 550 meters
Is it in stock?
We are confirming the latest stock and price of the CISCO GLC-LH-SMD= 1000BASE-LX/LH SFP Transceiver Module (MMF/SMF, 1310nm, DOM) with the distributor. Please contact us before ordering at 092-251-4017 or sales@gist.co.th.
How much does it cost?
The distributor has not yet confirmed the latest price and availability. Please contact us before ordering at 092-251-4017 or sales@gist.co.th.
How long is the warranty?
Warranty period: 5-year warranty subject to manufacturer's terms (manufacturer's terms). To make a warranty claim, call 092-251-4017 or 065-523-5262, or email sales@gist.co.th (Mon–Fri 9:00–18:00), then send the product with your order number to our head office, or bring it to the head office in person.
How long does delivery take?
Orders placed before 12:00 on a business day are delivered within 1–3 business days (Bangkok and vicinity) or 2–5 business days (other provinces). Free delivery on orders of ฿5,000 or more (a ฿150 delivery fee applies below this amount).
Is it genuine?
Genuine products sourced from distributors in Thailand, covered by the manufacturer's warranty. Full tax invoices are available.
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Genuine products
Sourced from distributors in Thailand and covered by the manufacturer's warranty
Warranty period
5-year warranty subject to manufacturer's terms
Covered by the manufacturer's warranty; you can make claims through GIST
Claims through GIST
Ship the product to our head office or bring it in person
Warranty conditions
- A receipt or other proof of purchase is required
- The product must not have been modified or altered
- Damage caused by misuse is not covered by the warranty
- To make a warranty claim, call 092-251-4017 or 065-523-5262, or email sales@gist.co.th (Mon–Fri 9:00–18:00), then send the product with your order number to our head office, or bring it to the head office in person.Head office: 554 Sky Nine Center, Floor 12A, Room 554/62, Asok-Din Daeng Road, Din Daeng Subdistrict, Din Daeng District, Bangkok 10400
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