1G SFP GLC-EX-SM1550-40 40km 1550nm Duplex LC/UPC Module, Cisco
The 1G SFP GLC-EX-SM1550-40 40km 1550nm Duplex LC/UPC Module, Cisco is a SFP optical transceiver delivering 1.25Gbps over SMF. Operating at 1550nm with a Duplex LC interface, it reaches 40km and is compliant with SFF-8472 MSA Compliant, IEEE 802.3ah-2004. Built-in digital diagnostics give real-time access to operating parameters, making the module easy to deploy and maintain in enterprise access, campus, telecom edge and industrial network environments.
Product Highlights
- SFP form factor, 1.25Gbps data rate
- Wavelength: 1550nm
- Connector: Duplex LC
- Reach: up to 40km
- Fiber media: SMF
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Cisco Compatible | GLC-EX-SM1550-40 |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP |
| Max. Data Rate | 1.25Gbps |
| Wavelength | 1550nm |
| Max. Cable Distance | 40km |
| Connector | Duplex LC |
| Optical Components | DFB 1550nm |
| Media | SMF |
| DOM Support | Yes |
| TX Power | -5~0dBm |
| Receiver Sensitivity | < -24dBm |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 |
Applications
Network architects choose the 1G SFP GLC-EX-SM1550-40 40km 1550nm Duplex LC/UPC 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. It is interoperable with Cisco platforms and replaces the Cisco part GLC-EX-SM1550-40 directly.
Standards and Compatibility
Compliance: SFF-8472 MSA Compliant, IEEE 802.3ah-2004. For projects standardized on Cisco hardware, this product replaces the GLC-EX-SM1550-40 directly, with identical fit and function. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.
Ordering Information
To order, quote SFP1G-EX-55 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.
Packing Details
Standard packing is an anti-static bag plus blister protection, with cartons sized to keep products from moving in transit. We apply our standard labels by default; neutral packing or customer-branded labels, part number stickers and serial barcodes are all available on request.
Built to Your Spec
Our product line has grown with the industry for three decades, from GBIC-era modules to today's 800G and 1.6T interconnects. If the exact configuration you need is not listed, we can usually build it: custom lengths, mixed connector breakouts, OEM branding and project-specific firmware coding are all supported.
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.
Tested Before Shipment
We do not ship untested stock. Each transceiver and cable is powered up in our test racks, checked for link stability, transmit power, receiver sensitivity and diagnostic readouts, and only then packed for delivery. This factory-level testing is one reason network integrators keep reordering from us year after year.
