R911272172 is part of the MTS Servo Control Modules Series by Indramat Controls.
Specs
Operation Type: Slave SPS Main Memory Size: 1MB RAM Communication Type: 50-way ribbon cable local bus Address Switch: Must be Off during use Installation: Fits in unused ISA-BUS slot of an industrial PC Slot Occupancy: Two slots in PC or a BTV20/30 terminal Key Wiring Support: Supports direct wiring of machine function keys Operating Temperature: 0°C to 50°C Battery Type: Rechargeable Battery Charging Time: 50 hours from full discharge Buffer Time: Approximately 5000 hours Battery Life with Permanent Charging: Unaffected Full Battery Duration: Minimum 7 to Maximum 10 hours Interface: Active PC104.