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

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. Digital diagnostics report transmit power, receive power and temperature in real time, which simplifies commissioning and ongoing maintenance. Compatibility with Cisco systems is verified in our own test lab before shipment, so the unit works out of the box as an equivalent of GLC-LH-SM-20.

This product is designed and tested to comply with SFF-8472 MSA Compliant, IEEE 802.3ah-2004, IEEE 802.3z. It is interoperable with Cisco equipment and serves as a direct equivalent to the Cisco part number GLC-LH-SM-20.

To order, quote SFP1G-ELX-31 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.

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.

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.

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.