R911316128 is part of the CSH Advanced Control System Series by Indramat Controls.
Specs
Action Required Before Use: Commissioning Velocity Control Cycle Time: 125µs and 250µs Number of Encoders: Two Encoder Type: EnDat 2.1 / 1Vpp / TTL Supply Voltage: 5V Inrush Current Rating: 4A Related Components: Category C3 in accordance with IEC 61800-3 Output Voltageser Encoders: Two DC with and without voltage return.