The VMM front-end integration in the Scalable Readout System: On the way to a next generation readout system for generic detector R&D; and experiment instrumentation

The Scalable Readout System (SRS) of the RD51 collaboration with the APV25 ASIC is driving research and development for gaseous detectors. Discontinuation of APV25 and demands on flexibility concerninge.g. detector capacitance and readout rate induced a replacement of the ASIC, for which the col-laboration has chosen the VMM chip of the ATLAS New Small Wheel upgrade. A prototype SRSVMM system was operated with small GEM detectors at test beams and hardware componentsare finalised. More than twelve groups signed as primary system users. We present the read-out chain and current status of the implementation of the VMM in SRS, applications and further developments.