Hunter CAN Bus Interface Unit

THIS PRODUCT HAS NOW BEEN DISCONTINUED AND REPLACED BY THE PART NO: CB-1 OR CB8-R

Part no: CBJ1939 – 12V

1.         Function

The CBJ1939 CAN Interface is a device for obtaining vehicle speed pulse and engine speed (RPM). The unit monitors SAE J1939 CAN Bus for a given message or messages and generates an output corresponding to the equivalent wire loom signal.

The CBJ1939 features built-in diagnostic LEDs to indicate CAN Bus status and speed pulse output to aid the installation process. After power-up, only the RED LED will illuminate. At this point, the interface is searching for CAN Bus information. When CAN Bus information is detected, the RED LED will go out and the GREEN LED will illuminate. After this, the GREEN LED will flash according to engine RPM while the RED LED will flash according to vehicle speed.

2.         Fitting

The CAN Bus uses two wires for data transmission.  One is called CAN_HIGH and the other called CAN_LOW  (sometimes marked as CAN+ and CAN- respectively).  The CAN connections on the CAN Bus interface should be connected on to the appropriate CAN Bus connections with an insulated solder joint.  Do not cut the CANBus wires.

Module Information