Marconi Ericsson 1400803-0026 Marconi/Ericsson SMA/OMS/MSH SDH transmission Optical Transmission Module

The Marconi Ericsson 1400803-0026 is an XFP optical transceiver for STM-64 traffic to the S-64.2b optical specification, operating at 1550nm with a reach of 40km over single-mode fibre. It provides one 10Gbit/s port on an OMS series optical multi-service platform, converting between the electrical signal and the long-haul optical link. The S-64.2b classification places it as a short-haul module in ITU terms despite the 40km figure, which is the metro and regional distance band rather than the long-haul reach that requires optical amplification. The 1550nm window is used at this distance because fibre attenuation is lowest there, making it the practical choice for inter-exchange and metro ring spans. It is a hot-pluggable XFP with an LC duplex connector, fitted to OMS 1664 and related transmission equipment. Ericsson acquired Marconi’s transmission business in 2006, which is why both names appear on equipment in this family. Tech-Star, UK-based and shipping worldwide, supplies transmission optics for SDH network maintenance.