R-ETH100 is a bridge module with Fast-Ethernet interface for GDNET.

It controls 100 Mbps communication with the operator terminal on one side and powers and controls the modules installed on the R-BUS(x) backplane on the other, acquiring data from all the I/Os every 100µs.

It can control a maximum of 16 I/O modules.

A rotary switch on the front panel lets you assign the node number in the network (1-15).

The communication port has an RJ45 connector and two signal LEDs (link and data).

R-ETH100 is powered at 24 VDC via an extractable connector.


  • Complete control of R-BUS(x) back plane
  • Refresh of all installed I/Os in 100us (1 node)
  • GDNet interface
  • Power supply of backplane
  • In conformity with UL508
Developed & Designed By:
Eng. Haitham Abdelraouf @2021