| Part No. | LS-SM552G-20C |
| Form Factor | SFP |
| Max Data Rate | 2.5Gbps |
| Wavelength | 1550nm |
| Max Cable Distance | 20km |
| Connector | Duplex LC |
| Media | SMF |
| Transmitter Type | DFB |
| Receiver Type | PIN |
| TX Power | -6 ~ 1dBm |
| Receiver Sensitivity | < -18dBm |
| EMC Supported | Yes |
| DDM/DOM | Supported |
| Protocols | MSA Compliant |
| Temperature Range | 0 to 70°C / -40 to 85°C |
| Warranty | 5 Years |
| Sample | Available |
Drawing on over 10 years of experience in chips and modules, we integrate fast speeds, small size, power savings, and high performance into every module. We provide a full series of optical modules for fixed access, wireless access, carrier Ethernet, wavelength division multiplexing (WDM), and data communication networks.
| Part Number | Data Rate | Wavelength | Distance | Media | DDM |
|---|---|---|---|---|---|
| LS-MM852G-S3C | 2.5Gbps | 850nm | 300m | Multi-mode | Yes |
| LS-MM852G-S5C | 2.5Gbps | 850nm | 550m | Multi-mode | Yes |
| LS-SM312G-02C | 2.5Gbps | 1310nm | 2km | Single Mode | Yes |
| LS-SM312G-10C | 2.5Gbps | 1310nm | 10km | Single Mode | Yes |
| LS-SM312G-15C | 2.5Gbps | 1310nm | 15km | Single Mode | Yes |
| LS-SM312G-20C | 2.5Gbps | 1310nm | 20km | Single Mode | Yes |
| LS-SM552G-20C | 2.5Gbps | 1550nm | 20km | Single Mode | Yes |
| LS-SM312G-40C | 2.5Gbps | 1310nm | 40km | Single Mode | Yes |
| LS-SM552G-40C | 2.5Gbps | 1550nm | 40km | Single Mode | Yes |
| LS-SM552G-80C | 2.5Gbps | 1550nm | 80km | Single Mode | Yes |
Providing end-to-end DWDM devices including almost all optical components - from active modules to optical passive devices, such as optical amplifiers (EDFA & RFA), Mux & Demux, OPM, ROADM, MCS, OLP, and OTDR.


To meet the demand of mass data transmission in data centers, high-speed optical modules with rates ranging from 10G to 800G provide high-quality interconnection solutions.


High reliability products with mainstream chip solutions. Includes Dark Fiber, WDM, Radio over Fiber, and Back-haul solutions for 4G/5G systems, alongside total FTTx optical fiber access solutions.








As a specialized manufacturer of magnetic telecom and network components, we are certified by ISO9001:2000, ROSH, REACH, CE, and UL. Our facilities utilize advanced manufacturing and testing equipment. Established in 1997, we currently employ approximately 2000 staff members. With a production capacity of 3000K per month, we ensure short lead times. We offer a complete range of optical modules for fixed/wireless access, carrier Ethernet, and cloud computing networks using the latest optoelectronic technologies.