PCAN-Router DR – User Manual
12
3.4
CAN Bus Termination
The termination for each CAN channel can be separately activated
with switches on the board. At delivery, the termination is switched
off. A High-speed CAN bus (ISO 11898-2) must be terminated on
both cable ends with 120
. Otherwise, malfunctions may arise.
Tip:
We recommend adding termination at the CAN cabling, for
example with termination adapters (e.g. PCAN-Term). Thus,
CAN nodes can be flexibly connected to the bus.
Do the following to activate the internal termination:
Attention!
Electrostatic discharge (ESD) can damage or destroy
components on the circuit board of the PCAN-Router DR. Take
precautions to avoid ESD when handling the circuit board.
1.
Disconnect the power supply.
2.
Open the plastic casing by slightly pushing the latches at the
top behind the CAN 1 connector and at the bottom behind
the power connector, e.g. with a flat tip screwdriver.
3.
Pull out the circuit board including the casing front.
4.
Make your desired setting(s).
Figure 1 shows the positions of the switches
term. CAN
1
and
term CAN
2
on the board. The tables below contain the
possible settings.
5.
For the assembly of the PCAN-Router DR, slide the board
including the front part back into the plastic casing and
press the casing together until the latches click in.
