National Instruments NI-9862 Getting Started page 7

The following figure shows a simplified diagram of a CAN bus with multiple CAN
nodes and proper termination resistor (R
Figure 2. CAN Bus Topology and Termination Resistor Locations
Connecting a CAN Bus to the NI-9862
You can connect the NI-9862 port to any location on a CAN bus. The following figure
shows one example of connecting the NI-9862 directly to one CAN node.
Figure 3. Connecting the NI-9862 to a CAN Device
NI-9862 Hardware Overview
The NI-9862 has one full-featured CAN port that is isolated from the other
modules in the system. The port has a Bosch DCAN CAN controller that is CAN
2.0B-compatible and fully supports both 11-bit and 29-bit identifiers. The port also
has an NXP TJA1041AT High-Speed CAN transceiver that is fully compatible with the
ISO 11898 standard and supports baud rates up to 1 Mbps.
) locations.
t
Bus Cable Length
CAN_H
CAN
R t
Node
CAN_L
Stub
Length
CAN CAN
Node Node
(SHLD) (SHLD)
CAN_H CAN_H
CAN
Cable
R R
t t
(With
CAN_L CAN_L
Optional
Shield)
V V
sup
COM COM
NI-9862 Getting Started
CAN_H
CAN
R t
Node
CAN_L
C Series
Module
sup
7
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