The CL-103 is a solid-state microcontroller based module and member of the HED® CANLink® multiplexed control family. Sealed to an IP67 level allows module to be mounted external of the cab. This module provides powerful functionality in a compact and economical package. The CL-103 can be programmed using HED®’s do-ityourself CANLink® Composer™ programming tool and the CANLink® Conductor™ software tool for diagnostics and field troubleshooting. The CL-103 includes 4 different communications ports (7 Total) which enables the module to perform a dual role as a master controller and communications bridge between multiple CAN systems on one vehicle.