Siemens S32011-Q121-X201-52 telecommunications hardware (Hicom/HiPath/OpenScape PBX, SDH transmission) Optical Transmission Module

The Siemens S32011-Q121-X201-52 is a TransXpress SLD16 synchronous multiplexer controller. It sits in the same X201 build group as the neighbouring dash numbers, and the trailing digits separate hardware issues that were released as the platform’s software moved on. The controller is the board that runs the terminal: control processing, timing and the management path used to commission and monitor an STM-16 span.

Siemens TransXpress was the company’s SDH transmission portfolio, and the S32011 block within it covers the SLD16 and SLR16 line equipment used on STM-16 routes. Nodes are made up of optical interface units at several STM rates, a sync multiplexer controller, telemetry and supervisory cards, and the power and shelf hardware that supports them. Siemens transmission passed to Nokia Siemens Networks and then out of support altogether, so operators still running these routes maintain them from held spares matched by full part number.

Tell us the system this is going into and we will check the unit we hold against it before you commit. Tech-Star is UK-based and ships worldwide. Contact our sales team for stock, condition and pricing.