Multifunctional Interface Converter RS 485 RS 232C to built up the bus systems: HIBUS-1 : 4-wire-bus, HIBUS-L, RS 422, full duplex, active bus coupling HIBUS-2 : 2-wire-bus, RS 485, half duplex, passive bus coupling HIBUS-2/HIBUS-2 Repeater HIBUS-2/HIBUS-1 Repeater Type : H7505 Make : HIMA, Germany Condition : Used during FAT only. Otherwise condition as good as new. Note: 1. Datasheet available upon request. 2. Contact the seller to confirm stock status.