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IV.3 Connection to J1939 Engines
Adaptor cables for some J1939 engines (including Caterpillar and Yanmar) are available.
Please, check our web site for current information.
The Device works with engines and engine networks using the widespread J1939 standard, which
at the physical level is a CAN bus with 250 kbps speed. J1939 is the standard for automobiles, heavy
equipment, and industrial engines and generators.
With factory settings, the Device does not transfer data to the J1939 network (only from it), so proper
installation of the Device will have no effect on the work of this network. However, you can configure
settings VI.32 and VI.33 to forward data (like speed or course) from an NMEA 2000 to an engine’s
network if it is required for the trip computer or other equipment in the engine’s network.
Connect the contacts (3) CAN1 HIGH and (1) CAN1 LOW from the Device (see Appendix E)
to the CAN HIGH and CAN LOW signals of the J1939 network. The (4) and (6) contacts on the connector
must have power coming in between 12V and 24V. The CAN2 HIGH contact (5) and CAN2 LOW (2) contact
are not connected to the Device.
The connectors used in the Device are Deutsch DT04-6P and DT06-6S (see Appendix E), which can
be obtained in any auto parts store or a specialized internet store, such as Mouser Electronics
(
Please check the CAN and power lines as described at beginning of chapter IV.