Product Focus: 1310nm-TX/1550nm-RX Bidirectional Single Mode SFP 155M Bidi 20km LC Optical Transceiver Module
We integrate fast speeds, small size, power savings, and high performance into every module. Our full series of optical modules supports fixed access, wireless access, carrier Ethernet, WDM, and data communication networks.
| Form Factor | SFP |
| Max Data Rate | 155Mbps |
| Wavelength | 1310nm-TX/1550nm-RX |
| Max Cable Distance | 20km |
| Connector | Simplex LC |
| Media | SMF |
| Transmitter Type | FP |
| Receiver Type | PIN |
| TX Power | -14 ~ -8dBm |
| Receiver Sensitivity | < -30dBm |
| EMC Support | Supported |
| DDM/DOM | Supported |
| Protocols | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant |
| Temperature Range | 0 to 70°C / -40 to 85°C |
| Warranty | 5 Years |
| Part Number | Data Rate | Wavelength | Distance | Components | DDM |
|---|---|---|---|---|---|
| LS-BL315501-10C | 155Mbps | 1310nm-TX/1550nm-RX | 10km | FP/PIN | Yes |
| LS-BL553101-10C | 155Mbps | 1550nm-TX/1310nm-RX | 10km | FP/PIN | Yes |
| LS-BL315501-20C | 155Mbps | 1310nm-TX/1550nm-RX | 20km | FP/PIN | Yes |
| LS-BL553101-20C | 155Mbps | 1550nm-TX/1310nm-RX | 20km | FP/PIN | Yes |
| LS-BL315501-40C | 155Mbps | 1310nm-TX/1550nm-RX | 40km | FP/PIN | Yes |
| LS-BL553101-40C | 155Mbps | 1550nm-TX/1310nm-RX | 40km | FP/PIN | Yes |
| LS-BL315501-80C | 155Mbps | 1310nm-TX/1550nm-RX | 80km | FP/PIN | Yes |
| LS-BL495501-80C | 155Mbps | 1490nm-TX/1550nm-RX | 80km | DFB/PIN | Yes |
Optical Transport Networks
End-to-end DWDM devices including optical amplifiers (EDFA & RFA), Mux & Demux, OPM, and ROADM.
Cloud and Enterprise
High-speed optical modules ranging from 10G to 800G for mass data transmission in modern data centers.
Wireless
Solutions for Dark Fiber, WDM, and Radio over Fiber, meeting needs for 4G/5G systems.



Certified by ISO9001:2000, RoHS, REACH, CE, and UL, we utilize advanced manufacturing and testing equipment. With over 20 years of experience, we provide a complete series of optical interconnect solutions for cloud computing and ultra-broadband networks. Using the latest optoelectronic technologies, we design, manufacture, and distribute products worldwide.


Yes, our modules are MSA compliant and designed to be compatible with a wide range of industry-standard networking hardware.
BiDi (Bidirectional) modules allow transmission and reception over a single strand of fiber by using two different wavelengths, effectively doubling your fiber capacity.
Yes, this module supports DDM/DOM, allowing you to monitor real-time parameters such as temperature, optical power, and voltage.
Yes, samples are available. Please reach out to our team to discuss your specific testing requirements.
Stock items are ready to ship immediately. For mass production, the typical lead time ranges from 15 to 30 days depending on the order volume.
We offer a 5-year warranty on our optical transceiver modules, ensuring long-term reliability for your network infrastructure.