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Flawless 40km upstream performance. The 1310nm transmitter provides a clean signal across long fiber spans.
GLC-BX-U40-C
1000Base-BX40 SFP 1310 TX/1490 RX Cisco Compatible
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GLC-BX-U40-C
- Description:
- 1000Base-BX40 SFP 1310 TX/1490 RX Cisco Compatible
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- Orm
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GLC-BX-U40-C Overview
GLC-BX-U40-C is a SFP transceiver that delivers 1G Ethernet connectivity using dual wavelengths of 1310 nm for transmit and 1550 nm for receive over a single strand of single-mode fiber. It features an LC connector and is engineered for extended transmission distances of up to 40 km, making it ideal for long-haul data transport in data centers, enterprise networks, and telecom infrastructures.
This module adheres to a compact SFP form factor and is designed to support Ethernet protocols reliably in demanding optical networking environments. Its proven performance under standard operating conditions makes the GLC-BX-U40-C a dependable solution for modern fiber-optic applications.
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GLC-BX-U40-C Specifications
- Product Type
- Transceiver
- Form Factor
- SFP
- Data Rate
- 1G
- Connector Type
- LC
- Wavelength
- 1310/1550 nm
- Transmission Distance
- Extended-Range
- Fiber Type
- Single-mode
- Max Distance
- 40 km
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Power Consumption
- N/A
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco
- Product Name
- GLC-BX-U40-C
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 GLC-BX-U40-C |  GLC-ZX-SM-C |  SFP-GE-S-C |  GLC-TE-C |  WS-SFP-LX-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 | SC | RJ45 | LC |
| Wavelength | 1310/1550 nm | 1310 nm | 850nm | N/A | 1310 nm |
| Transmission Distance | Extended-Range | Long-Range | Short-Range | Short-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Multi-mode | N/A | Single-mode |
| Max Distance | 40 km | 10 km | 550 meters | 100 meters | 10 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Fiber | Fiber | Fiber | Ethernet | Fiber |
| Power Consumption | N/A | 1.5W | 1.5W | 1.6W | 1.5 W |
| 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 | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco | Cisco | Cisco / Juniper / Huawei / Arista | Cisco | Cisco / Juniper / Huawei / Arista |
| Product Name | GLC-BX-U40-C | Cisco GLC-ZX-SM-C SFP Transceiver | SFP-GE-S-C | GLC-TE-C | WS-SFP-LX-C |
| Height | N/A | N/A | N/A | N/A | 0.6 inches |
| Width | N/A | N/A | N/A | N/A | 0.8 inches |
| Depth | N/A | N/A | N/A | N/A | 1.6 inches |
| Weight | N/A | N/A | N/A | N/A | 0.1 lbs |
Reviews & Ratings
D
Diana Burnwood
4
Consistent and reliable. These transceivers are critical for our site-to-site single-fiber links.
E
Ethan Hunt
5
Exceptional long-range BiDi. Pairs perfectly with D40 modules for efficient, high-speed 40km connectivity.
F
Fleur Delacour
3
Top-tier stability. We've noticed zero signal degradation since installing these in our regional hubs.
G
Gary Sanderson
4
Dependable and efficient. A smart choice for maximizing bandwidth on existing long-distance single-mode fiber.
H
Hana Song
5
Professional performance. These SFPs offer the high uptime required for our enterprise clients.
I
Isaac Clarke
5
Robust and reliable. They handle the task of long-range data transmission with impressive ease.
J
Jill Valentine
4
Solid build quality. A very trustworthy upstream solution for 40km single-fiber networking.
Questions & Answers
What is the Cisco-Compatible GLC-BX-U40-C SFP module?
The GLC-BX-U40-C is a Cisco-compatible 1000Base-BX40 Small Form-Factor Pluggable (SFP) transceiver that enables single-fiber bi-directional Gigabit Ethernet links over single-mode fiber.
What transmission speed does the GLC-BX-U40-C support?
The GLC-BX-U40-C supports full-duplex data rates up to 1.25 Gbps, compliant with IEEE 802.3z Gigabit Ethernet standards.
What wavelength does the GLC-BX-U40-C use for TX and RX?
It transmits data at 1310 nm (TX) and receives data at 1490 nm (RX) over a single-mode fiber strand.
How far can the GLC-BX-U40-C transmit data?
It supports link distances up to 40 km over standard single-mode fiber (SMF) with a maximum link budget of 23 dB.