Siemens S32011-Q121-X201-54 telecommunications hardware (Hicom/HiPath/OpenScape PBX, SDH transmission) Optical Transmission Module

The Siemens S32011-Q121-X201-54 is a TransXpress SLD16 synchronous multiplexer controller from the X201 group. Later dash numbers in a Siemens transmission code generally mark a hardware issue that shipped with a newer software load, and backward fitment is not automatic, so the safest approach is to tell us the issue you are replacing. The controller itself provides the terminal’s processing, timing and management access on an STM-16 line system.

The S32011 numbering belongs to Siemens TransXpress line equipment, the SLD16 and SLR16 family that carried STM-16 traffic on long haul and regional SDH routes before and through the Nokia Siemens Networks era. A terminal is assembled from optical interface units at STM-1, STM-4 and STM-16, a synchronous multiplexer controller, telemetry and supervisory interfaces, and the shelf power and control cards behind them. Inside the code the Q group marks the function and the tail marks the optical or build variant, so the whole string matters when you order.

Send us the platform details, or a photograph of the board label you are matching, and we will verify the item physically before despatch. Tech-Star (UK-based, shipped worldwide) supplies tested telecom and network hardware on a quote-only basis. Please contact our sales team for availability and pricing.