Hardware Installation
9.
If you are installing the CAN-PCI/402-4/2Slot module with 4 CAN interfaces you have to
install the adapter board CAN-PCIe/402-Slot2 in the PCI slot next to the CAN-PCI/402-2
board. Connect the two boards with the included ribbon cable (see figure 4 on page 15) via
the 10-pin post connectors on the bard and on the adapter.
10. Close the system's case again.
11. Connect the CAN wire.
NOTICE
Please note that the CAN bus has to be terminated at both ends!
CAN-PCI/402-2(-FD):
The first CAN interface (CAN0) has to be connected via the lower DSUB connector (X600)
and the second CAN interface (CAN1) has to be connected via the upper DSUB connector
(X610). You will find a figure showing the connectors on page 14.
CAN-PCI/402-4/2Slot:
If you are installing a CAN-PCI/402-4/2Slot with adapter board, you have to connect the third
CAN interface (CAN2) via the lower DSUB connector (X400) of the adapter board and the
fourth CAN interface (CAN3) via the upper DSUB connector (X410) of the adapter board (see
figure 5, page 15).
Refer to order information on page 41 to verify your hardware configuration.
For CAN-PCI/402 boards with electrical isolation:
If the integrated CAN termination of the CAN interface is not set via the jumpers, the interface
has to be terminated externally, read chapter “Correct Wiring of Electrically Isolated CAN
Networks“, from page 27.
For external termination esd offers suitable termination connectors for the CAN bus.
Additionally the CAN_GND signal has to be connected to earth at exactly one point.
A CAN participant with electrical connection to earth potential acts as an earth connection.
For CAN-PCI/402 boards without electrical isolation:
In order to avoid that possible lightning currents are discharged via the motherboard and thus
to avoid damage, CAN_GND is internally connected to the front panel and thus to earth
potential.
This does not supersede the external connection to earth potential!
NOTICE
Make sure that an external connection to the same earth potential is installed as near
as possible to the connector in the front panel before you go on with the installation.
Together with the internal earth connection this acts as a single earthing point.
12. Connect the system to mains again (mains connector or fuse).
13. Switch on the system and the peripheral devices.
14. End of hardware installation.
Continue with the software installation as described in the manual ‘NTCAN-API, Installation
Guide’.
CAN-PCI/402
Hardware Manual • Doc. No.: C.2049.21 / Rev. 1.5
Page 19 of 43
