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Appendix B
Cabling Requirements
© National Instruments Corporation
B-5
Figure B-6. PXI-8461 Parts Locator Diagram
Connecting pins 1 and 2 of a jumper configures the PXI-8461 physical
layer to be powered externally (from the bus cable power). In this
configuration, the power must be supplied on the V+ and V– pins on the
port connector. The jumper must be in this position for the DeviceNet
interface to be compliant with the DeviceNet Specification.
layer to be powered externally (from the bus cable power). In this
configuration, the power must be supplied on the V+ and V– pins on the
port connector. The jumper must be in this position for the DeviceNet
interface to be compliant with the DeviceNet Specification.
Connecting pins 2 and 3 of a jumper configures the PXI-8461 physical
layer to be powered internally (from the board). In this configuration, the
V– signal serves as the reference ground for the isolated signals.
layer to be powered internally (from the board). In this configuration, the
V– signal serves as the reference ground for the isolated signals.
The PCMCIA-CAN is shipped with the bus power version of the
PCMCIA-CAN cable. An internally-powered version of the
PCMCIA-CAN cable can be ordered from National Instruments.
PCMCIA-CAN cable. An internally-powered version of the
PCMCIA-CAN cable can be ordered from National Instruments.
1
Power Supply Jumper J6
2
Power Supply Jumper J5
3
Assembly Number
4
Product Name
5
Serial Number
2
1
3
4
5