ROF1575133/1 R4C 16c Ericsson Ericsson AXE Telecom System Card

The Ericsson ROF1575133/1 R4C 16c is an Integrated Processing Unit (IPU) card equipped with a DSM3 (Digital Switching Module 3) 16-channel licence. This card provides processing capacity and digital switching functionality within Ericsson AXE telecommunications platforms.

The IPU with DSM3 licence enables the handling of multiple simultaneous voice channels, supporting call processing and switching operations in fixed-line and mobile network infrastructure. The 16-channel configuration determines the licensed capacity for concurrent channel handling on this particular unit.

This is a legacy component designed for Ericsson AXE-based switching systems, which have been widely deployed by telecommunications operators worldwide. As these platforms are now largely superseded by newer architectures, this card is typically sought for maintenance, spares provisioning, or capacity expansion of existing installations.

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