Ericsson 2/ROFNB15725/2 EMS server / OMS SDH transmission / Aastra Ericsson PBX Optical Transmission Module

The Ericsson 2/ROFNB15725/2 is an LTU-2 board for the DCT1800 system, a line termination unit that connects the DECT base stations back to the system controller. DCT1800 is Ericsson’s (later Aastra’s) DECT-standard business cordless telephone system, giving cordless handsets full access to a site’s PABX features while users move around a building; the system was carried forward by Aastra after Ericsson sold its enterprise PBX business in 2008. DCT1800 systems of this generation remain common in DECT business cordless telephony deployments, and genuine replacement parts like this one are routinely needed when a unit fails, when redundancy needs restoring, or when an existing installation is being expanded. Specifiers should confirm compatibility against their specific DCT1800 chassis or configuration before ordering. Tech-Star (UK-based, shipped worldwide) stocks Ericsson components to support ongoing DCT1800 maintenance projects.