A new batch of network cards (boards/adapters) PDU-RS485-TTL for monitoring racks for ATB. Allow the IR33 and PJEZ series Carel refrigeration controllers to be linked to a MODBUS or BMS system. Main function: management and control of typical parameters in cooling, heating and air conditioning systems. Main characteristics: Support for CAREL or Modbus® protocol An analogue of IROPZ48500.