Adjusting The Termination For A Can Bus - Peak PCAN-Router Pro User Manual

PCAN-Router Pro – User Manual
3.2 Adjusting the Termination for a CAN
Bus
Depending on the used CAN transceiver module you can activate or
change the CAN bus termination for each CAN connection CAN 1 to
CAN 4 with switch blocks S1 to S4. Switches 1 and 2 on a switch
block always must have the same position. By default the switches
are in OFF position (upper position according to the orientation of
the figure).
Positions of the switch blocks for CAN termination;
Type of transceiver
High-speed CAN (ISO 11898-2)
Low-speed CAN (ISO 11898-3)
Single-wire CAN (SAE J2411)
* Both switches of a switch block
ON at lower switch position
Termination at switch position *
OFF (upper pos., default) ON (lower pos.)
none
4.7 kΩ for
CAN_L and CAN_H
9.1 kΩ for CAN_SW
12
120 Ω between
CAN_L and CAN_H
1.1 kΩ for
CAN_L and CAN_H
2.1 kΩ for CAN_SW