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Chapter 1
Getting Started with the cDAQ Controller
NI-XNET CAN/LIN Connector
(NI cDAQ-9134/9135)
The NI cDAQ-9134/9135 controller features an NI-XNET
hardware-selectable interface port that supports CAN and LIN transceiver cables.
Users have the flexibility to choose the physical bus protocol by plugging in corresponding
external transceiver cables. The NI-XNET connector supports hot-swapping of transceiver
cables and can detect and identify external transceiver cable types. For information about
connecting to a CAN or LIN bus, refer to your NI-XNET transceiver cable operating
instructions.
Caution
To maintain product performance and accuracy specifications when using
the NI-XNET CAN/LIN port and NI transceiver cable(s), do not attach or mount the
transceiver overmold directly to the cDAQ controller. Mount the overmolded section
of the transceiver cable at least 50.8 mm (2.00 in.) away from the cDAQ controller.
By following the cooling outline requirements shown in Figures 1-10 and 1-11, the
NI transceiver cable will not affect the thermal performance of the system.
Caution
Do
not
hot-swap NI-XNET devices while the cDAQ controller is in a
hazardous location or connected to high voltages. If the cDAQ controller is not in a
7
white/brown
white/brown
white/brown
8
brown
brown
brown
Table 1-8.
Ethernet Cable Wiring Connections (Continued)
Pin
Connector 1
Connector 2
Straight Through
Crossover
Connector 1
Connector 2
Pin 1
Pin 1
Pin
8
Pin
8