Connect To The J1939 Network - Veratron LINK UP J1939 User Manual

CONNECT TO THE J1939 NETWORK

SAE J1939 CAN busses are used to connect the different sensors, monitors and other electrical components
of a machine, and digitally transmit the required data in between those components.
The J1939 bus works on a speed of 250 kbps and its physical layer consists of four wires. Next to the two
power lines (VCC and Ground) there are two wires used for the data transmission called "CAN High" and
"CAN Low".
Before you start with the installation of the LinkUp, we recommend checking the engine connector wiring in
the engine's manual and verifying it with a multimeter.
- Turn off the circuit breaker and check the resistance between the CAN High an CAN Low pins. The
value should lay somewhere between 60 and 120 Ohm.
- Turn on the circuit breaker (for some models the ignition also should be on) and measure the voltage
between the two power lines (GND and VCC). It must be 12 to 24 Volts.
If possible, use the provided plug (shown in figure 2) to connect the LinkUp Gateway to your vessel. The
contacts must audibly lock into place.
If the vessels engine is not equipped with the matching connector, it is possible to either crimp a female
counterpart on it (see "Technical Data"), or simply cut-off the plug on the LinkUp and manually connect the
wires. For this, refer to the pinout description, provided in the section "Technical Data".
Plug for connection from LinkUp to CAN bus
SAE J1939
(Deutsch DT04-6P)
SYSTEM INSTALLATION
B001030