My parts list/tender specifications

SU/S30.640.1 Uninterruptible EIB Power Supply, 640 mA, MDRC

Data Sheet:

Power supply 640 mA with integrated choke for supplying a bus line from an uninterrupted supply. Quick diagnostics via LED display for operational readiness, fault and battery level as well as a floating contact for a fault signal indication. The accumulator module or up to 2 rechargeablebatteries can be charged in normal operation by the voltage supply. The bus voltage is provided by the batteries in the event of a mains failure.