Huawei SSN1C34S OptiX OSN 3500/7500 Telecom System Card / Module

The Huawei SSN1C34S is a shared PDH interface board used in Huawei’s OptiX OSN 3500 and OSN 7500 SDH transmission platforms. It provides a 3-channel E3/T3 electrical interface changeover (protection-switching) function, allowing the OSN subrack to route and protect PDH tributary traffic carried at the E3 (34 Mbit/s) or T3 (45 Mbit/s) rate. As a shared board in Huawei’s OptiX architecture, the SSN1C34S works alongside PDH interface boards to provide interface protection and changeover between working and protection paths, improving the resilience of E3/T3 tributary circuits carried over the SDH network. It is fitted into a service slot of the OSN 3500 or OSN 7500 subrack and forms part of a wider family of PDH access and protection boards used to integrate legacy PDH traffic into a modern SDH/MSTP transport layer. This board is typically deployed by carriers and enterprises maintaining legacy E3/T3 leased-line or trunk services over a Huawei OptiX transmission backbone. Tech-Star (UK-based, shipped worldwide) can source this board, enquire for stock and configuration details.