S30810-Q2163-X100-10 Siemens HiPath 3000/4000 PBX Expansion Card

The Siemens S30810-Q2163-X100-10 is an STMD2 (Subscriber Trunk Module Digital) board designed for use in Siemens enterprise communication systems. This module provides digital trunk connectivity, enabling the PBX to interface with ISDN primary rate or other digital trunk services for external call handling.

The STMD2 card is typically deployed within Siemens HiPath 3000 and 4000 series communication platforms, as well as legacy Hicom systems. It serves as a critical component for organisations requiring reliable digital trunk connections to public or private telephone networks.

This is a legacy Siemens telecommunications module from a product line that has since been transitioned following the acquisition by Unify (now part of Atos). Despite its discontinued status, the STMD2 remains relevant for organisations maintaining existing Siemens PBX infrastructure where replacement or expansion of trunk capacity is required.

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