The PCM-3680 / 36E81 is a special purpose communication module which offers connectivity of the Controller Area Network to your PC/104 SBC. With the built-in CAN controller, the PCM-3680 / 36E81 provides bus arbitration and error detection with automatic transmission repeat function. The PCM-3680 / 36E81 provide two independent fully isolated CAN channels with high speed data transmission up to 1 Mbps.