The is a robust, rack-mounted power supply module designed primarily for legacy SIMATIC S5 programmable logic controller (PLC) systems. Serving as the energy heart of the control cabinet, this unit converts standard AC line voltage (typically 120/230 V AC) into the regulated DC voltages required by the backplane bus and I/O modules—most notably +5 V DC and +24 V DC.
Siemens DSS 8650 Power Supply Module – Reliable Backbone for Industrial Control dss 8650