Hello,
The CA-1000 does not contain a PCI bus interface for cards like the PCI-4451. The CA-1000 accepts a variety of signal conditioning modules and is then connected by cable to an acquisition device.
To use the 4451 with a laptop, you would need a Cardbus to PCI expansion chassis, such as those offered by
MAGMA and other companies. I mention MAGMA only because I have a small amount of experience with their products. I'm sure there are others that are equally suitable.
If you're not 100% attached to the 4451, there are a couple other options. You could use a 1394 based DAQ device such as the
NI DAQPad-6052E for FireWire, which could then be co
nnected to something like the CA-1000 if necessary, depending on your signal specs. Keep in mind that even though both the 4451 and 6052E are nominally 16-bit boards, the 4451 would be more suitable for audio measurements, particularly if you need simultaneous measurements on more than one channel.
Finally, a portable PXI system with the 4472 would make an ideal platform for precision audio measurements, if this fits within your budget and your definition of portable.
Regards,
Brent R.
Applications Engineer
National Instruments