Ericsson ROFBS19789 EMS server / OMS SDH transmission / Aastra Ericsson PBX PBX Card / Module

The Ericsson ROFBS19789 is labelled MEX1, an extension card for the MD Evolution XL system. MD Evolution XL was Ericsson’s business communication system before Ericsson sold its enterprise PBX portfolio to Aastra Technologies in 2008; Aastra carried the platform forward and it was later developed into the MX-ONE system, so this generation of hardware still supports installations that have not yet migrated. This generation of MD Evolution XL hardware is still widely deployed in business telephony networks, and a confirmed working spare such as this one is often needed to restore redundancy after a failure, keep a system at full capacity, or extend an existing installation. Buyers should confirm the exact host chassis and configuration before ordering, since compatibility is tied to the specific installation. Tech-Star (UK-based, shipped worldwide) supplies Ericsson MD Evolution XL hardware to keep existing installations running.