The Integrated Control Module (ICM) allows the Bach Simpson ERS series of event recorder to directly control two Bach Simpson SSA speed indicator heads as well as providing on / off relay outputs for penalty braking control and pulse type outputs for odometer and distance related external functions.

Integrated control means that the displayed speed always matches the speed recorded through use of common wheel diameter and Pulse Per Revolution (PPR) scaling factors stored in the ERS.

Use of redundant speed sensor sources is supported in order to maximize availability of the critical speed indication function.

The ICM indicator outputs provide more than sufficient power and precision to support better than +/- 1degree indication accuracy on a Bach-Simpson™ SSA indicator ( +/- 0.3 MPH for a 90 MPH / 270 degree indicator).