ROF1375062/1 Ericsson MD110 Telecom System Card

The Ericsson ROF1375062/1 is an ELU 33/1 Extension Line Unit, a telecom system card designed to provide analogue extension line interfaces within Ericsson telephony infrastructure. This unit enables the connection of analogue telephone devices to the digital switching fabric of the PBX system.

The ELU 33/1 is a component of the Ericsson MD110 Business Communications System, a widely deployed enterprise PBX platform. It provides multiple analogue extension ports, allowing organisations to integrate traditional analogue handsets, fax machines, and other analogue devices into their MD110 telephone system.

The MD110 platform and its associated hardware, including the ELU series of line units, is legacy equipment that has been superseded by more modern IP-based telephony solutions. However, many installations remain in active service, and replacement or spare units continue to be sought for maintenance and expansion purposes.

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