© National Instruments 41 NI sbRIO-960x/962x/963x OEM Instructions & Specifications
Cable Lengths
The cabling characteristics and desired bit transmission rates affect the
allowable cable length. You can find detailed cable length
recommendations in the ISO 11898, CiA DS 102, and DeviceNet
specifications.
ISO 11898 specifies 40 m total cable length with a maximum stub length
of 0.3 m for a bit rate of 1 Mb/s. The ISO 11898 specification allows for
significantly longer cable lengths at lower bit rates, but each node should
be analyzed for signal integrity problems.
Number of CAN Nodes
The maximum number of nodes depends on the electrical characteristics of
the nodes on the network. If all nodes meet the ISO 11898 requirements,
you can connect at least 30 nodes to the bus. You can connect higher
numbers of nodes if the electrical characteristics of the node do not degrade
signal quality below ISO 11898 signal level specifications.
USB Port
This section applies only to the following NI sbRIO devices:
The NI sbRIO devices populated with USB ports support common USB
mass-storage devices such as USB Flash drives and USB-to-IDE adapters
formatted with FAT16 and FAT32 file systems. LabVIEW usually maps
USB devices to the
U:, V:, W:, or X: drive, starting with the U: drive if it
is available. Refer to Figure 32 and Table 11 for USB pin locations and
signal descriptions.
Figure 32. USB Port Pin Locations
• NI sbRIO-9606 • NI sbRIO-9633
• NI sbRIO-9626 • NI sbRIO-9636
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