1G SFP GLC-LH-SM-20 20km 1310nm Duplex LC/UPC Module, Cisco

Designed for enterprise access, campus, telecom edge and industrial network environments, the 1G SFP GLC-LH-SM-20 20km 1310nm Duplex LC/UPC Module, Cisco provides 1.25Gbps throughput in a SFP form factor. It operates at 1310nm over SMF through a Duplex LC/UPC connector and supports link lengths up to 20km. The module meets SFF-8472 MSA Compliant, IEEE 802.3ah-2004, IEEE 802.3z and includes digital diagnostic monitoring for live status readout.

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

The 1G SFP GLC-LH-SM-20 20km 1310nm Duplex LC/UPC Module, Cisco is used in enterprise access, campus, telecom edge and industrial network environments, where it provides a 1.25Gbps link over SMF up to 20km. 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-LH-SM-20.

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.

Order this product as SFP1G-ELX-31. Common models are stocked for fast dispatch. We can supply the module with neutral or customer-branded labels, and compatibility coding for a specific equipment vendor can be added at no extra process step.

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.

Because we are the factory, customization is straightforward: non-standard lengths, different jacket materials, specific polarity or breakout wiring, and compatibility programming for particular switch brands are all routine work for us. Small trial orders are accepted so you can verify quality before scaling up.

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.

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.