R911309833 is part of the CSH Advanced Control System Series by Indramat Controls.
Specs
Product Line: Rexroth IndraDrive Drive System Product Type: CSH Control Section Communication Module: Parallel Interface Digital Inputs: 16 Digital Outputs: 16 Input/Output Grouping: 4 inputs and 4 outputs each Standard Encoder Evaluation Interface Voltage: 12V Resolver and HSF Encoder Evaluation Interface Voltage: DC 8V or AC 18.2V peak-peak Safety Technology: I/O Module Firmware: Must be ordered separately