GLC-BX-U Cisco Compatible 1G BIDI 20KM SMF SFP Transceiver
Cisco compatible GLC-BX-U - Key Features
- Compatibility: Cisco
- Media Type: Single-Mode Fiber (SMF)
- Fiber Count: BiDi
- Connector: Single LC/UPC
- Maximum Distance: 20 km
- Average Link Budget: 15 dB
- Tx Wavelength: 1310 nm
- Supported Data Rate: 1.063 Gbps - 1.25 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
Cisco GLC-BX-U Price
In Stock - Ships Next Business DayCisco compatible GLC-BX-U Specifications
Form Factor | SFP |
Media Type | Single-Mode Fiber (SMF) |
Fiber Count | BiDi |
Connector | Single LC/UPC |
Maximum Distance | 20 km |
Average Link Budget | 15 dB |
TX Wavelength | 1310 nm |
RX Wavelength | 1490 nm |
Supported Data Rate | 1.063 Gbps - 1.25 Gbps |
Supported Ethernet Applications | Gigabit Ethernet (1.25 Gbps) |
Supported Fiber Channel Applications | 1G Fiber Channel (1.0625 Gbps) |
DDM/DOM | Supported |
Tx Wavelength Bandwidth | 40 nm (1290-1330 nm) |
Rx Wavelength Bandwidth | 40 nm (1470-1510 nm) |
Minimum Transmitting Power | -9 dBm |
Maximum Transmitting Power | 3 dBm |
Receiver Sensitivity | -22 dBm |
Receiver Overload | -3 dBm |
Dispersion | 140-160 ps/nm ps/nm |
Transmitter Type | FP Laser |
Receiver Type | PIN photodiode |
Temperature Range | Standard 0°-70°C |
Power | +3.3V single power supply |
Compliance | CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, RoHS, INF-8074i, SFP MSA |
Cisco compatible GLC-BX-U Datasheet
v5Complete technical specifications and product details
Cisco compatible GLC-BX-U Description
EdgeOptic's GLC-BX-U compatible is a Cisco-coded version of the EdgeOptic BIDI-1.25G-SFP-21-AD multi-vendor 1000BASE-BX-U BiDi SFP transceiver. Cisco publishes GLC-BX-U as the upstream half of its BX single-fiber pair for point-to-point Gigabit Ethernet over one strand of fiber.
The compatible transmits at 1310 nm and receives at 1490 nm over a single strand of single-mode fiber, at 1.063 to 1.25 Gbps, and must pair with a Cisco GLC-BX-D unit at the far end; two GLC-BX-U modules cannot link to each other. Cisco rates the OEM GLC-BX-U at approximately 10 km, BX10 reach class. The EdgeOptic BIDI-1.25G-SFP-21-AD hardware behind this compatible carries a 15 dB link budget and a 20 km reach rating, a separate hardware spec from the Cisco OEM distance; verify actual span loss before relying on the 20 km figure.
The module is a hot-pluggable SFP with a single LC/UPC connector built to the SFP MSA interface (INF-8074i). An FP laser transmitter pairs with a PIN photodiode receiver; digital diagnostics for optical power, bias current, temperature and supply voltage read through the standard DDM/DOM EEPROM. Operating range is 0 to 70 degrees C at 3.3 V, with CE, RoHS and Class 1 laser safety certification under FDA and IEC 60825-1.
GLC-BX-U is not the GLC-2BX-D, a separate Cisco 2 km FTTx SKU, or the GLC-BX-U-RGD ruggedized variant; neither is an alternate code for this module. The module is programmed with Cisco-compatible EEPROM coding. Acceptance policies vary by Cisco chassis and software release; verify the platform's transceiver compatibility matrix before deployment. The paired GLC-BX-D compatible module is available separately. Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms, with a lifetime warranty included; for project-quantity pricing or alternative vendor coding, contact our sales team.
Frequently Asked Questions
Does the Cisco GLC-BX-U need to be paired with a GLC-BX-D?
Yes. The GLC-BX-U transmits at 1310 nm and receives at 1490 nm, so it must link to a Cisco GLC-BX-D unit, which transmits at 1490 nm and receives at 1310 nm, at the far end of the fiber. Two GLC-BX-U modules will not establish a link with each other. See the GLC-BX-D compatible for the far end unit.
Is the Cisco GLC-BX-U the same as the GLC-2BX-D or GLC-BX-U-RGD?
No. The GLC-2BX-D is a separate Cisco ordering code for a 2 km FTTx single-fiber application, and the GLC-BX-U-RGD is a separate ruggedized Cisco SKU for extended environmental conditions. Neither part number is an alternate code for the GLC-BX-U; each is its own distinct Cisco SKU with its own datasheet.
Will my Cisco switch accept a third-party GLC-BX-U compatible module?
Some Cisco chassis and software releases enforce vendor validation on SFP ports, while others accept third-party optics without restriction. Verify the target Cisco platform's transceiver compatibility matrix for its current software release before deploying this compatible.