OC-3/STM-1 SFP 40km Transceiver: 155M-SFP-40D

Our EDGEOPTIC 155M-SFP-40D is a multi-vendor compatible OC-3/STM-1 SFP dual-fiber optical module designed for SONET/SDH and Fast Ethernet applications operating over single-mode fiber cabling. The 155M-SFP-40D module operates at 1310nm wavelength for transmission and reception, with data rates from 0.1 to 0.155 Gbps and supports multiple protocol standards and applications. Our OC-3/STM-1 SFP transceiver utilizes FP (Fabry-Perot) laser for transmission and PIN photodiode for receiving. Transceiver ensures a 29 dB guaranteed optical link budget, which determines the maximum transmission distance. Over single-mode fiber, the transceiver can reach distances up to 40 kilometers, providing long-reach connectivity for telecommunications and enterprise network deployments. However, distance is just an indicative parameter calculated for comfort of identification, eventually we calculate distance taking into account minimal optical budget and average attenuation of optical cabling in industry.

155M-SFP-40D compatible OC-3/STM-1 module is hot-pluggable SFP with duplex LC/UPC connectors as an optical interface. The electrical interface conforms to INF-8074i MSA (Multi-Source Agreement) specifications, ensuring compatibility with standard SFP host systems supporting multiple vendor equipment platforms. Our OC-3/STM-1 SFP transceiver can be encoded to be compatible and successfully operate in different 80+ brands of equipment. The module incorporates DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time information including transmitted and received optical power levels, module temperature, bias current, and supply voltage. This diagnostic data is available via MSA-compatible EEPROM interface and enables monitoring of transceiver operational parameters. The module operates within a 0 to 70 C temperature range, with appropriate thermal considerations for sustained operation in controlled network environments.

Standards compliance includes SDH/SONET support for STM-1 (155Mbps) and OC-3 applications, along with 100BASE-FX Fast Ethernet compatibility. The transceiver achieves multi-vendor interoperability through adherence to industry MSA standards, though equipment with vendor-specific module validation may require custom EEPROM programming for compatibility. Our OC-3/STM-1 SFP transceiver is CE/RoHS certified, and it is compliant with Class 1 FDA and IEC60825-1 laser safety standards.

Typical applications are telecommunications backbone networks, SONET/SDH ring deployments, carrier access services, and long-haul enterprise connections. The dual-rate capability supporting both 100Mbps Ethernet and 155Mbps SONET/SDH provides operational flexibility for converged telecommunications infrastructures. With transmit power ranging from -5 to 0 dBm and receiver sensitivity of -34 dBm, the module delivers robust link margins for reliable 40km transmission. The module's wavelength bandwidth of 100nm (1260-1360nm) ensures stable operation across environmental variations. Because our focus is providing top quality service, we are performing serious quality checks before delivery of our products. As a result, we do optical parameter measurements, connector cleanness tests and SFP transceiver EEPROM memory data validation tests.