R911335399 is part of the CSH Advanced Control System Series by Indramat Controls.
Specs
Device Type: Single-axis control unit Encoder Emulation: Standard at X4 Supported Encoder Interfaces: IndraDyn, HIPERFACE, 1Vpp, TTL I/O Extension: Digital at X10 Storage Temperature: -20 to +80 degree Celsius Control Panel: Standard Operation Temperature: 0 - 40 degree Celsius Switching Frequency: 2 to 16 kHz Digital Outputs: 0-4 numbers