ROF1375321/2 Ericsson Ericsson MD110 Telecom System Card

The Ericsson ROF1375321/2 is an ELU 26 Extension Line Unit, a telecom system card designed to provide analogue extension line interfaces within Ericsson switching platforms. This module enables the connection of analogue telephone endpoints to the digital exchange infrastructure, handling signalling and voice conversion functions.

The ELU 26 is typically deployed within Ericsson MD110 PBX systems and AXE exchange environments, serving as a critical interface between the digital switching fabric and traditional analogue devices such as telephones, fax machines, and modems. It supports multiple extension lines per card, allowing efficient subscriber density within equipment cabinets.

This is a legacy product from the Ericsson telecommunications portfolio. The MD110 platform, whilst discontinued, remains in active service across numerous enterprise and public sector installations worldwide, creating ongoing demand for replacement and expansion modules.

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