Electronic specialist in harsh environments
+33 (0)4 77 53 30 48


We took over COMPEX AUTOMATION, the creator of one of the first French local industrial networks, called LAC. The first versions of these networks provided for the exchange of information and secure data to centralized control stations. Variable writing functions have been added to the performance of this network. LAC2000 is a heterogeneous industrial local area network designed for very harsh environments.

The twisted pair bus of the LAC network transmits signals according to the RS485 standard and the deterministic communication procedure allows operation at very high load without degradation of performance or collisions. Used at the time by more than 200 large companies, it still has a large number of standard installations still in operation, or specific new ones.

RSAI remains the only specialist in the LAC network, capable of repairing and controlling equipment that has been in operation for more than 35 years. Our technical team always ensures the exclusivity of maintenance, and can travel for expertise, troubleshooting or network extension in the field.