About ABB RER 103 BUS CONNECTION MODULE

ABB RER 103 BUS CONNECTION MODULE

This bus connection module converts incoming optical signals from the LON /SPA bus to electrical RS 485 signals for the RE500 devices and vice versa. The module is plugged into the D-type subminiature connector on the rear plate of the host device.

Versatile Communication Support

The RER 103 module provides flexible connectivity with both fibre optic and electrical connectors, supporting key industry protocols such as SPA bus, LON, and IEC 60870-5-103. Its ability to handle bus speeds up to 1.5 Mbps makes it suitable for high-performance applications in modern substations and medium voltage switchgear.


Robust Performance in Tough Environments

Engineered for durability, the module operates reliably in ambient temperatures from -10C to +55C and stores safely within -40C to +85C. With high insulation resistance and an IP20-rated, flame-retardant enclosure, it withstands demanding industrial settings while providing long-lasting safety and performance.


Effortless Integration and Maintenance

DIN rail mounting, hot-swappable design, and SCADA remote control facilitate quick installation and minimal downtime during maintenance or upgrades. The RER 103's self-powered operation from the bus and modular build streamline deployment and system expansion, making it a cost-effective choice for evolving automation needs.