National Instruments NI-DNET - Manual (Page 61)

© National Instruments Corporation B-1 NI-DNET User Manual
B
Cabling Requirements
This appendix describes the cabling requirements for the hardware.
Cables should be constructed to meet these requirements as well as the
requirements of DeviceNet. DeviceNet cabling requirements can be found
in the DeviceNet Specification.
Connector Pinouts
The PCI-CAN, PXI-8461, and the PCMCIA-CAN bus-powered cable each
have a Combicon-style pluggable screw terminal connector. The
PCMCIA-CAN bus-powered cable also has a DB-9 D-SUB connector.
The 5-pin Combicon-style pluggable screw terminal follows the pinout
required by the DeviceNet Specification. Figure B-1 shows the pinout for
this connector.
Figure B-1. Pinout for 5-Pin Combicon-Style Pluggable Screw Terminal
CAN_H and CAN_L are signal lines that carry the data on the DeviceNet
network. These signals should be connected using twisted-pair cable.
The V+ and V– signals supply power to the DeviceNet physical layer. Refer
to the
Power Supply Information for the DeviceNet Ports section for more
information.
1 V+
2 CAN_H
3 Shield
4 CAN_L
5 V–
1
2
3
5
4