R911305534 is part of the CSH Advanced Control System Series by Indramat Controls.
Specs
Product: IndraDrive Control Units Maker: Rexroth Indramat Bosch Group Family Version: First Version Design: Design 1 Communication Mode: SERCOS Interface Master Communication Terminal X4: IndraDyn Hiperface Encoder Terminal X8: EnDat2.1 Encoder Safety Option: L1 Starting Lockout Control Panel: Standard Firmware: Not Built-In, Must Be Bought Separately