R911330661 is part of the CSH Advanced Control System Series by Indramat Controls.
Specs
Number of Available Slots: 3 Included Modules: Encoder with EnDat 2.1 interface Remaining Slots: 2 Safety Option Slots: 1 Equipped Communication Module: MultiEthernet Firmware Requirement: Need to order separately Maximum Mounting/Dismounting: 20 Times Size: 241 x 49.5 x 103 millimeters