R911321790 is part of the CSH Advanced Control System Series by Indramat Controls.
Specs
Digital Inputs: 11 Analog Inputs: 1 RS232 Serial Port: 1 Digital Outputs: 4 Analog Outputs: 2 Communication: Parallel Interface Master Stranded Wire: 0.75 to 1.5 mm Relay Contacts: Single Relay Switching Frequency: 2 to 16 Hz Encoders: HSF/RSF (option 1), EnDat2.1 (option 2) Max Pulse Width: 100 milliseconds Inrush Current: 4 A Power Source: 24-volt DC Power Consumption: 7.5 watts Purpose: Industrial Use Encoder Emulator: Included in Option 3 slot Control Panel Power Consumption: 1 W