GALILEOSKY GLONASS/GPS Satellite v4.0 (0223) User’s manual
GalileoSky Ltd.
Page 26
8.1.6
Variants of connection to the CAN-bus
1. Direct connection.
Attention
! If the terminating resistor (is shown with a dotted line in the diagram) is not installed on the
vehicle side, it should be installed. Its presence can be checked with the help of a multimeter: it is
necessary to measure the resistance between CAN_H and CAN_L when the vehicle electronics is off. If the
resistance is about 60 Ohm, there is no need for a terminating resistor. If the resistance is 120 Ohm, it is
necessary to connect a standard 120 Ohm resistor between the CAN_H and CAN_L wires.
2. Connection with current-limiting resistors
To plug the Terminal into the troubleshooting socket it is necessary to use the first connection variant.
Only the second variant is recommended for use
to connect the Terminal directly to the vehicle’s CAN bus.
CAN_L
CAN_H
Vehicle
CANH
CANL
GND
can
GND
1кОм
1кОм
CAN_L
CAN_H
GND
Vehicle
CANH
CANL
GND
can
120
1кОм
