
The 1G SFP GLC-BX-20U 20km 1310nm-TX/1550nm-RX Simplex LC/UPC Module, Cisco is a SFP optical transceiver delivering 1.25Gbps over SMF. Operating at 1310nm-TX/1550nm-RX with a Simplex LC/UPC interface, it reaches 20km and is compliant with Fast Ethernet, Gigabit Fibre Channel, MSA Compliant. 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.
| Cisco Compatible | GLC-BX-20U |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP |
| Max. Data Rate | 1.25Gbps |
| Wavelength | 1310nm-TX/1550nm-RX |
| Max. Cable Distance | 20km |
| Connector | Simplex LC/UPC |
| Media | SMF |
| Transmitter Type | DFB BiDi |
| Receiver Type | PIN |
| TX Power | -9~-3dBm |
| Minimum Receiver Power | <-20dBm |
| Power Budget | 11dB |
| Receiver Overload | -3dBm |
| Max. Power Consumption | 1W |
| Extinction Ratio | 9dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Bit Error Ratio (BER) | 1E-12 |
| Protocols | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant |
Network architects choose the 1G SFP GLC-BX-20U 20km 1310nm-TX/1550nm-RX Simplex LC/UPC Module, Cisco for enterprise access, campus, telecom edge and industrial network environments: it runs 1.25Gbps over SMF and reaches 20km. 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-BX-20U directly.
Compliance: Fast Ethernet, Gigabit Fibre Channel, MSA Compliant. For projects standardized on Cisco hardware, this product replaces the GLC-BX-20U 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.
To order, quote SFP-1G35-BX20 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.
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.
We ship to customers around the world every week. Express couriers handle most orders door to door in a few days; larger consignments go by air or sea to keep freight costs down. Tracking information is provided for every shipment, and we are flexible on shipping accounts and forwarders.
Every unit we ship is tested in our own test bed on mainstream switch and transport platforms before packing. Our test center has been fully upgraded, which sets us apart from other third party product providers: 10G, 40G, 100G, 200G and 400G transceivers and direct attach cables are verified on the latest top brand equipment, including selected original switches that can hardly be found elsewhere.
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.