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Maxine Caulfield
4
Perfect upstream BiDi module. The 1310nm TX signal is strong and the link is incredibly stable.
GLC-BX-U-C
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1000Base-BX10 SFP 1310 TX/1490 RX Cisco Compatible
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GLC-BX-U-C
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GLC-BX-U-C Overview
GLC-BX-U-C is a Cisco SFP optical transceiver designed for 1G data rate transmission, featuring an LC connector and engineered for use with single-mode fiber. It operates over long-range distances—up to 10 km—and supports Ethernet protocols, making it ideal for data centers, enterprise networks, and telecom applications.
This bidirectional transceiver adheres to standard SFP form factor dimensions and is built to Cisco specifications. With its officially documented design and compatibility with Cisco systems, the GLC-BX-U-C offers reliable performance for network connectivity in mission-critical infrastructures.
GLC-BX-U-C price is is available on request. Get immediate quote.
Request bulk order quote for GLC-BX-U-C for additional pricing. Browse the full Cisco Compatible Sfp series or explore all Orm products.
GLC-BX-U-C Specifications
- Product Type
- Transceiver
- Connector Type
- LC
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 10 km
- Form Factor
- SFP
- Data Rate
- 1G
- Compatibility
- Cisco
- Height
- 0.33 inches
- Weight
- 0.06 lbs
- Depth
- 0.53 inches
- Wavelength
- 1310/1490 nm
- Power Consumption
- 1.2 W
- Width
- 2.23 inches
- Product Name
- Cisco GLC-BX-U-C Bidirectional SFP Transceiver
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| GLC-BX-U-C |  GLC-BX-U80-C |  GLC-SX-MMD-2K-C |  GLC-BX-U120-C |  SFP-GE-L-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Data Rate | 1G | 1G | 1G | 1G | 1G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1310/1490 nm | 1310/1490 nm | 850 nm | 1490 nm Tx / 1310 nm Rx | 1310nm |
| Transmission Distance | Long-Range | Long-Range | Extended-Range | Long-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Multi-mode | Single-mode | Single-mode |
| Max Distance | 10 km | 80 km | 2000 meters | 20 km | 10 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| Power Consumption | 1.2 W | N/A | 1.5W | N/A | N/A |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | N/A | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco | Cisco | Cisco | Cisco | Cisco, Juniper, Huawei, Arista |
| Product Name | Cisco GLC-BX-U-C Bidirectional SFP Transceiver | GLC-BX-U80-C | GLC-SX-MMD-2K-C | GLC-BX-U120-C Bidirectional SFP Transceiver | SFP-GE-L-C |
| Height | 0.33 inches | N/A | N/A | N/A | N/A |
| Width | 2.23 inches | N/A | N/A | N/A | N/A |
| Depth | 0.53 inches | N/A | N/A | N/A | N/A |
| Weight | 0.06 lbs | N/A | N/A | N/A | N/A |
Reviews & Ratings
N
Ned Stark
5
Reliable and efficient. These single-fiber SFPs are essential for our fiber-limited infrastructure.
O
Olivia Pope
5
Seamless pairing. Works flawlessly with the corresponding downstream module to maximize our fiber plant.
P
Peter Parker
4
Consistently high performance. We've had no issues with signal quality or packet loss over single-fiber.
Q
Quinn James
5
Great reliability. These modules provide the enterprise-level stability we expect for our B2B clients.
R
Riley Blue
5
Trustworthy hardware. Easy to deploy and provides immediate efficiency gains in our server room.
S
Samwell Tarly
5
Solid build and performance. The best solution for increasing capacity on existing single-mode fiber runs.
T
Thea Queen
5
Highly recommended. A dependable and fast upstream transceiver for high-density networking.
Questions & Answers
What is the GLC-BX-U-C 1000Base-BX10 SFP module?
The GLC-BX-U-C is a Cisco-compatible SFP transceiver supporting 1000Base-BX10 single-fiber bidirectional links for up to 10 km.
What data rate does the GLC-BX-U-C support?
The module supports a 1 Gbps data rate (1.25 Gbps line rate) in full-duplex mode.
Which wavelengths are used by the GLC-BX-U-C for transmit and receive?
It transmits at 1310 nm and receives at 1490 nm over single-mode fiber.
What is the maximum reach of the GLC-BX-U-C?
It delivers reliable performance up to 10 km on single-mode fiber with a typical optical budget of 12 dB.
Is the GLC-BX-U-C compatible with single-mode or multi-mode fiber?
The module is designed exclusively for single-mode fiber applications.
What connector type does the GLC-BX-U-C use?
It features an LC duplex connector optimized for single-fiber deployment.
Is the GLC-BX-U-C hot-swappable?
Yes. The SFP form factor allows hot-insertion and removal without powering down the system.
Is the GLC-BX-U-C fully compatible with Cisco switches and routers?
Yes. It is Cisco MD-II compliant and interoperable with Cisco platforms without third-party warnings.
Does the GLC-BX-U-C support digital optical monitoring (DOM)?
Yes. The module provides real-time DOM for monitoring Tx/Rx power, temperature, and voltage.
What standards does the GLC-BX-U-C comply with?
It meets IEEE 802.3ah (1000Base-BX10) and SFP MSA specifications for interoperability.
Can I use the GLC-BX-U-C with non-Cisco devices?
Yes. It is MSA-compliant and works with most third-party equipment that accepts standard SFP modules.
Does the GLC-BX-U-C require a firmware upgrade for Cisco compatibility?
No. It is plug-and-play with Cisco IOS – no additional firmware or software updates are needed.
What is the operating temperature range of the GLC-BX-U-C?
The specified commercial range is 0 °C to 70 °C (32 °F to 158 °F).
What is the typical optical budget of the GLC-BX-U-C?
Its optical budget is approximately 12 dB, supporting clear 10 km transmission.
How do I install the GLC-BX-U-C in my network device?
Slide the SFP module into an empty SFP port until it clicks, then connect the LC fiber cable accordingly.
Does the GLC-BX-U-C come with a warranty?
Yes. It includes a standard one-year warranty against manufacturing defects.