Huawei SST1AUX OptiX OSN 7500 Telecom System Card / Module

The Huawei SST1AUX is an Auxiliary Interface board used within the Huawei OptiX OSN 7500 SDH transmission platform. The AUX board provides a set of auxiliary interfaces for the subrack, including alarm input/output contacts, environmental monitoring connections and other housekeeping signalling used to integrate the transmission equipment into a wider network management and alarm system. Alongside boards such as the EOW orderwire board, the AUX board is one of the standard optional system boards fitted to an OptiX OSN 7500 subrack to support day-to-day operations, monitoring and maintenance rather than carrying live traffic itself. It allows site alarms such as door contacts, smoke or temperature sensors to be wired back into the transmission equipment and reported through the network management system, giving operators visibility of site conditions alongside transmission performance. Auxiliary interface boards of this type are a standard feature across Huawei’s OptiX OSN product range. Tech-Star (UK-based, shipped worldwide) can source this Huawei OptiX OSN 7500 board, enquire for stock and compatibility confirmation.