ABB RER 103 Reliable MM Bus Connection Module for REF Series Fast Ethernet Edge Switch and monitoring devices

and monitoring devices

Nominal Voltage: 12–24 VDC

With a 10 MHz clock speed and 128 KB RAM

Maximum: 19

ABB RER 103 Reliable MM Bus Connection Module for REF Series Fast Ethernet Edge Switch and monitoring devicesOverview The ABB RER 103 is a robust bus communication module designed for medium voltage protection and control systems. It enables data exchange between Intelligent Electronic Devices (IEDs) and higher level automation systems through fiber optic communication, ensuring high immunity to electromagnetic interference and excellent electrical isolation. Designed for seamless integration with ABBs REF, REM, and RET protection relay families, the RER 103