![2500-rio-a____rs485_remote_base_controller](https://www.napa.fr/en/wp-content/uploads/2012/06/2500-RIO-A.jpg)
2500-RIO-A RS485 REMOTE BASE CONTROLLER
Obsolete _ Replaced by 2500-RIO-B
The 2500-RIO-A RS485 Remote Base Controller allows control of a remotely-located CTI 2500 Series® or Simatic® 505® I/O base over a twisted-pair RS485 cable up to 1000m from the CPU.