Siemens S30810-Q22-X1-3/01 EWSD Telecom System Card / Module

The Siemens S30810-Q22-X1-3/01 is a system card module (internal mnemonic SASCE) used within the Siemens EWSD (Elektronisches Wählsystem Digital) digital switching exchange platform, a widely deployed telephone exchange system originally introduced by Siemens AG in 1975 and installed in central office and network switching environments worldwide. EWSD exchanges are built from a large family of function-specific plug-in cards and modules that handle line interfacing, signalling, switching matrix control, digital line units, trunk group control, and central processing functions across the platform’s modular rack architecture. This module is one such card within that architecture, identified via its Siemens material number and function mnemonic marked on the unit itself. As with much legacy central-office hardware of this generation, exact granular function documentation for every individual card variant is not always publicly available, so this listing confirms the module’s platform and material number rather than asserting an unconfirmed specific circuit function. Tech-Star (UK-based, shipped worldwide) supplies tested legacy telecom hardware including EWSD spares for operators maintaining existing Siemens exchange infrastructure. Get in touch to confirm compatibility with your exchange configuration or request further technical detail before ordering.