1G SFP GLC-LH-SM-20 20km 1310nm Duplex1G SFP GLC-LH-SM-20 20km 1310nm Duplex LC/UPC Module, Cisco
The 1G SFP GLC-LH-SM-20 20km 1310nm Duplex LC/UPC Module, Cisco is a hot-pluggable SFP transceiver rated at 1.25Gbps. Using a Duplex LC/UPC optical interface over SMF at 1310nm, it covers transmission distances up to 20km. Compliance with SFF-8472 MSA Compliant, IEEE 802.3ah-2004, IEEE 802.3z, together with integrated diagnostic monitoring, makes it a dependable choice for enterprise access, campus, telecom edge and industrial network environments.
Product Highlights
- SFP form factor, 1.25Gbps data rate
- Wavelength: 1310nm
- Connector: Duplex LC/UPC
- Reach: up to 20km
- Fiber media: SMF
- DDM/DOM: Supported
Specifications
| Cisco Compatible | GLC-LH-SM-20 |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP |
| Max. Data Rate | 1.25Gbps |
| Wavelength | 1310nm |
| Max. Cable Distance | 20km |
| Connector | Duplex LC/UPC |
| Media | SMF |
| Transmitter Type | FP 1310nm |
| Receiver Type | PIN |
| TX Power | -9.5~-3dBm |
| Minimum Receiver Power | < -23dBm |
| Power Budget | 13.5dB |
| Receiver Overload | -3dBm |
| Power Consumption | ≤1W |
| Extinction Ratio | >9dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | SFF-8472 MSA Compliant, IEEE 802.3ah-2004, IEEE 802.3z |
Applications
In enterprise access, campus, telecom edge and industrial network environments, the 1G SFP GLC-LH-SM-20 20km 1310nm Duplex LC/UPC Module, Cisco delivers 1.25Gbps transmission over SMF with a reach of 20km. With its Duplex LC/UPC optical interface, the module works directly with the SMF infrastructure already installed in most facilities. It is interoperable with Cisco platforms and replaces the Cisco part GLC-LH-SM-20 directly.
Standards and Compatibility
On the compatibility side, this unit is the practical equivalent of the Cisco part GLC-LH-SM-20 and works in Cisco systems out of the box. Standards compliance covers SFF-8472 MSA Compliant, IEEE 802.3ah-2004, IEEE 802.3z.
Ordering Information
Our part number for this module is SFP1G-ELX-31. When ordering, just let us know the quantity and whether you need the compatibility coding for a particular switch brand; labeling and packaging can also follow your channel requirements.
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.
How We Pack
Transceivers and cables are individually protected against static and dust, then consolidated into sturdy cartons suitable for international courier shipment. For larger orders we shrink-wrap and strap cartons onto pallets. Tell us your warehouse or retail requirements and we will pack accordingly.
Custom-made Fiber Products
As a manufacturer serving the fiber optic industry since 1995, we have strong in-house manufacturing and design capability. From early GBIC, Xenpak and X2 modules to today's SFP, SFP+, QSFP, QSFP-DD and OSFP products, we grow together with the industry. OEM and custom-designed transceivers and cables are welcome, and our factory-direct pricing is very competitive compared with online retail stores.
Shipping and Lead Time
Standard products are held in stock and usually ship within one to three working days. We dispatch worldwide by DHL, UPS, FedEx, TNT or EMS, and for bulk orders we arrange air or sea freight. Shipments can also be sent collect on your own courier account or delivered to your freight forwarder.
