ETV 0853-3
CONTROL PANEL
Page 20
12.04.2017
CAN Bus Termination
In a CAN bus system, both end modules must be terminated. This is necessary to avoid
transmission errors caused by reflections in the line.
Device 1
Device 2
Device 3
Device n
e.g. CPU
DCP 160
e.g. Terminal
ET 081
CAN bus connection
CAN bus
termination on the
clamp module
DSUB plug with
termination
circuit
e.g. Terminal
ET 805
If the terminal is an end module, it can be terminated by placing a 150-Ohm resistor be-
tween CAN-A (Low) and CAN-B (High).
