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 Table 1.
The NI 9862 features software-selectable bus termination for
High-Speed CAN transceivers. On the NI 9862, you can enable
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NI 9862 Getting Started Guide
