TSR9010443/1700 (FZ81846-9-00 Ericsson Ericsson MD110 PBX Module

The Ericsson TSR9010443/1700 (FZ81846-9-00) is a dedicated cable assembly designed for interconnecting Line Filter Units (LFU), Signalling Interface Units (SIU), Input/Output Units (IOU), and Analogue Line Units (ALU1) within Ericsson MD110 private branch exchange systems. This cable provides the necessary physical connectivity between these functional modules to ensure proper signal routing and system operation.

This cable assembly is specifically engineered for deployment within Ericsson MD110 PBX installations, a widely deployed enterprise telephony platform. It facilitates the integration of analogue line interfaces and signalling components, which are essential for connecting external trunk lines and analogue endpoints to the switching fabric.

The Ericsson MD110 is a legacy PBX platform that was extensively deployed across enterprise and institutional environments. Whilst the MD110 has been superseded by newer IP-based solutions, many installations remain in active service, requiring ongoing maintenance and spare parts availability for sustained operation.

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