
The 1G SFP GLC-BX120-D 120km 1550nm-TX/1490nm-RX Simplex LC/UPC Module, Cisco is a hot-pluggable SFP transceiver rated at 1.25Gbps. Using a Simplex LC optical interface over SMF at 1550nm-TX/1490nm-RX, it covers transmission distances up to 120km. Compliance with Fast Ethernet, Gigabit Fibre Channel, MSA Compliant, 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: 1550nm-TX/1490nm-RX
- Connector: Simplex LC
- Reach: up to 120km
- Fiber media: SMF
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Cisco Compatible | GLC-BX120-D |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP |
| Max. Data Rate | 1.25Gbps |
| Wavelength | 1550nm-TX/1490nm-RX |
| Max Cable Distance | 120km |
| Connector | Simplex LC |
| Optical Components | DFB BiDi |
| Media | SMF |
| DOM Support | Yes |
| TX Power | -1~4dBm |
| Receiver Sensitivity | < -31dBm |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant |
Applications
The 1G SFP GLC-BX120-D 120km 1550nm-TX/1490nm-RX Simplex 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 120km. The Simplex LC interface and 1550nm-TX/1490nm-RX optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. 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-BX120-D.
Standards and Compatibility
This product is designed and tested to comply with Fast Ethernet, Gigabit Fibre Channel, MSA Compliant. It is interoperable with Cisco equipment and serves as a direct equivalent to the Cisco part number GLC-BX120-D.
Ordering Information
To order, quote SFP-1G54-BX120 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.
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.
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.
Packaging
Each unit is sealed in an anti-static bag, cushioned in a blister tray and boxed in an export-grade carton. Outer cartons carry handling marks and can be palletized for air or sea freight. If your project requires retail boxes, barcodes or your own brand on the label, we can arrange that as well.
OEM and Custom Orders
We have manufactured fiber optic connectivity products since 1995 and run our own production lines in Shenzhen. Beyond the standard catalog we build to order: special cable lengths, custom connector combinations, vendor-specific compatibility coding and private labeling. Send us your requirement and our engineers will quote a practical solution.



