... CI-PP21Description: This product is Profibus DP protocol fieldbus redundant module, achieve the exchange between single bus redundant dual bus, ... DIN rail installation, DC (9-36) V, widely power input, featured relay alarm output, dual power redundant, isolation protection and ... when necessary.Power and Protection:Ø Power: dual power redundancy input, DC(9-36)V, typical DC24V, power consumption less ...