Caution
The system shall only be used in an area of not more than
Pollution Degree 2, as defined in IEC/EN 60664-1.
Caution
The system shall be mounted in an ATEX/IECEx-certified
enclosure with a minimum ingress protection rating of at least IP54 as
defined in IEC/EN 60079-15.
Caution
The enclosure must have a door or cover accessible only by the
use of a tool.
Wiring the NI-9862
The NI-9862 has one 9-pin male D-Sub connector that provides connections to a
CAN bus. The NI-9862 has pins for CAN_H and CAN_L, to which you connect the CAN
bus signals. Connect these signals using twisted-pair cable.
The port has two common pins (COM) that are internally connected to the module’s
isolated reference and serve as the reference ground for CAN_H and CAN_L. You can
connect the CAN bus reference ground (sometimes referred to as CAN_V-) to one or
both COM pins. The port also has an optional shield pin, SHLD, that you can connect
to a shielded CAN cable. Connecting SHLD may improve signal integrity and EMC
performance in a noisy environment.
Caution
You must use a UL listed ITE power supply marked LPS with the
NI-9862.
The NI-9862 requires an external power supply of +9 to +30 V to operate. Supply
power to the NI-9862 V
SUP
pin.
Note
Power on V
SUP
is required for CAN operation.
The NI-9862 pinout is listed in the table below.
© National Instruments
5
NI-9862 Getting Started
