Peak PCAN-USB Pro, Руководство пользователя

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PCAN-USB Pro – User Manual
13
5-Volt supply
→
None Pin 1
CAN1, solder field L3
CAN2, solder field L22
Attention! Risk of short circuit! If the option described in this
section is activated, you may only connect or disconnect CAN
cables or peripheral systems (e.g. external bus converters) to or
from the PCAN-USB Pro while it is de-energized (the PCAN-
USB Pro adapter is not connected to the computer). Consider
that some computers still supply the USB ports with power
even when they are turned off (standby operation).
A High-speed CAN bus (ISO 11898-2) must be terminated on both
ends with 120 Ohms. Otherwise, there are interfering signal
reflections and the transceivers of the connected CAN nodes (CAN
interface, control device) will not work.
The PCAN-USB Pro adapter does not have an internal termination.
Use the adapter on a terminated CAN bus.
Figure 5: Simple CAN connection
In this example, the PCAN-USB Pro adapter is connected with a
control unit by a cable that is terminated at both ends.