| Part Number | ESGCLB55-K40C | Distance | 40km |
| Form Factor | SFP | Connector | LC duplex |
| Wavelength | 1550nm | Transmitter | DFB |
| Receiver | PIN | Media | Single-Mode Fiber(SMF) |
| Power Consumption | <1W | Protocol | 1.25G Base Ethernet |
| Case Temperature(℃) | C: 0℃ to +70℃ / I: -40℃ to +85℃ |
Up to 1.25Gbps Data Links
1550nm DFB laser transmitter and PIN/TIA receiver
Maximum link length of 40km on 9/125um SMF
Hot-pluggable SFP footprint
Duplex LC receptacles
Low power dissipation
RoHS compliant and lead-free
Support Digital Diagnostic Monitor interface
Single +3.3V power supply
Compliant with SFF-8472
Part No. | Bit Rate(Gbps) | Laser(nm) | Distance(km) | Fiber Type | DDMI | Connector | Operating Case Temp |
ESGCLB55-K40C | 1.25 | 1550 | 40 | SMF | YES | LC | 0~70℃ |
ESGCLB55-K40I | 1.25 | 1550 | 40 | SMF | YES | LC | -40~85℃ |
Discover the ultimate in long-distance connectivity with our 1.25G SFP 1550nm 40km LC Optical Module. This premium WDM SFP combines the reliability of traditional fiber optics with advanced technology, setting a new standard for high-performance networks. As a 1550nm SFP Transceiver, it excels in transmitting data over long distances of up to 40km, ensuring robust and consistent signal quality. Our 1310nm(1550nm) Transceiver is designed for seamless integration into existing networks, providing a cost-effective solution for upgrading your infrastructure. With its compact LC interface and superior optical performance, the 40km SFP is the ideal choice for enterprises seeking reliable, scalable, and high-speed network connectivity.
Government and Military Networks
The 1.25G SFP 1550nm 40km LC module is often used in government and military communication networks, where reliable, secure, and long-distance communication is essential. It connects various government or military facilities, command centers, and remote operations with a high level of security and high-speed data transfer. The 40km range allows for the transmission of critical information over moderate distances, making it suitable for mission-critical applications in remote areas.
Environmental Monitoring
The 1.25G SFP 1550nm 40km LC module plays a vital role in environmental monitoring systems, where long-distance communication is essential for transmitting data from remote environmental sensors to central monitoring stations. It is used in applications such as weather monitoring, air quality monitoring, and pollution detection. The 40km range allows for reliable transmission of critical data over large geographical areas, helping to ensure timely responses to environmental changes.
ESOPTIC is equipped with a comprehensive range of professional testing equipment designed to assess various parameters of optical products.
This ensures the highest performance, quality, and stability of optical transmission in all of our products.
Put the qualified products into the corresponding model blister box packaging.
The bottom, surface and side of the carton are filled with one piece of anti-static foam to protect the product.According to the requirements of the packing quantity, put the blister box box of the product into the packaging carton. If the space between the blister boxes is large, use a piece of anti-static foam to put it in the middle. The empty space in the end box must be filled with anti-static foam to ensure that it will not be damaged during transportation.
The outer case label is attached to the side position of the outer case,Label the outer case after sealing.
At the time of delivery, the entire outer box should be wrapped with at least 2 layers of wrapping film protection.
This 1550nm SFP Transceiver is designed for long-distance data transmission over single-mode fiber, up to 40km. It is commonly used in telecom access networks, enterprise backbone links, and remote surveillance systems where reliable and cost-effective fiber connectivity is needed.
The module is built for single-mode fiber (SMF) applications, typically using LC connectors. It operates on a 1550nm wavelength, which experiences lower attenuation over long distances, making it ideal for 40km SFP deployment scenarios.
Yes. This Optical Module supports Digital Diagnostic Monitoring (DDM), allowing real-time monitoring of key parameters such as optical power levels, temperature, supply voltage, and laser bias current—ensuring stable system operation and simplifying network maintenance.
Absolutely. ESOPTIC's 1550nm Transceiver modules are available in multiple vendor-compatible versions, ensuring plug-and-play compatibility with mainstream networking equipment such as Cisco, Juniper, Huawei, MikroTik, and more. All modules undergo stringent compatibility testing before shipment.
The 40km SFP strikes a balance between reach and cost. Compared to a 10km transceiver, it provides four times the distance using a higher transmit power and more sensitive receiver. Compared to an 80km module, it offers a more economical solution for intermediate-range links without overengineering the system.
