Comparison : Item # AX030140, 3 Encoder, 1 Universal Signal, 6 Digital/PWM/Hz Inputs CAN Controller, SAE J1939
Item # AX030141, 3 Encoder, 1 Universal Signal, 6 Digital/PWM/Hz Inputs CANopen Controller, Isolated
Item # AX030140-01, 3 Encoder, 1 Universal Signal, 6 Digital/PWM/Hz Inputs CAN Controller, 500 kbps SAE J1939
Item # AX030140-02, 3 Encoder, 1 Universal Signal, 6 Digital/PWM/Hz Inputs CAN Controller, 1M bps SAE J1939