
Designed for enterprise access, campus, telecom edge and industrial network environments, the 1G SFP GLC-EX-SMD 40km 1310nm Duplex LC/UPC Industrial Module, Cisco provides 1.25Gbps throughput in a SFP form factor. It operates at 1310nm over SMF through a Duplex LC connector and supports link lengths up to 40km. The module meets SFF-8472 MSA Compliant, IEEE 802.3ah-2004 and includes digital diagnostic monitoring for live status readout.
Product Highlights
- SFP form factor, 1.25Gbps data rate
- Wavelength: 1310nm
- Connector: Duplex LC
- Reach: up to 40km
- Fiber media: SMF
Specifications
| Cisco Compatible | GLC-EX-SMD |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP |
| Max. Data Rate | 1.25Gbps |
| Wavelength | 1310nm |
| Max. Cable Distance | 40km |
| Connector | Duplex LC |
| Optical Components | DFB 1310nm |
| Media | SMF |
| DOM Support | Yes |
| TX Power | -5~0dBm |
| Receiver Sensitivity | < -24dBm |
| Industrial Temperature Range | -40 to 85°C (-40 to 185°F) |
| Protocols | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 |
Applications
Network architects choose the 1G SFP GLC-EX-SMD 40km 1310nm Duplex LC/UPC Industrial Module, Cisco for enterprise access, campus, telecom edge and industrial network environments: it runs 1.25Gbps over SMF and reaches 40km. Digital diagnostics report transmit power, receive power and temperature in real time, which simplifies commissioning and ongoing maintenance. For networks standardized on Cisco hardware, it is a drop-in equivalent of the GLC-EX-SMD.
Standards and Compatibility
This product is designed and tested to comply with SFF-8472 MSA Compliant, IEEE 802.3ah-2004. It is interoperable with Cisco equipment and serves as a direct equivalent to the Cisco part number GLC-EX-SMD.
Ordering Information
To order, quote SFP1G-EX-31-I together with your quantity. Stock items ship quickly; for OEM orders we support custom labels, retail packing and vendor-specific coding, all handled in our own factory.
Quality Assurance
Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.
Package
Products are first packed into blister trays or self-sealed bags and then into cartons. Standard labels and marks are applied by default, and customized packing and labeling are available on request.
Factory Custom Capability
Working directly with the manufacturer means no middleman limits. We support OEM and ODM projects, custom cable assemblies, alternative packaging and compatibility coding for major equipment vendors, with engineering support from the same team that designs our standard products.
How We Ship
Most orders travel by international express and arrive within days; palletized freight by air or sea is used for volume orders. If you prefer, we ship on your DHL, UPS or FedEx account, or deliver to your appointed agent in China for onward consolidation.



