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National Instruments Corporation 2-1 BNC-2140 User Manual
2
Installation and Configuration This chapter explains how to install and configure your BNC-2140
accessory.
Installation
Note You must turn the power off to your computer before installing the BNC-2140.
The following are general installation instructions.
1. Insert either end of your SHC68-C68-A1 analog cable into the 68-pin
connector on the BNC-2140. Insert the other end into the 68-pin
connector on the DSA plug-in device.
2. Tighten the jack screws finger-tight on both ends of the cable.
3. Check the installation.
4. Turn on your computer.
The BNC-2140 accessory is now installed.
Device Configuration
You must manually configure the BNC-2140 accessory by setting the
channel switches. You can configure each input channel to have ICP signal
conditioning enabled or disabled, and for DIFF and SE measurements. You
can also configure each output channel for DIFF or SE measurements. You
can turn the power on or off for the ICP signal conditioning circuitry. If you
do not require ICP signal conditioning, turn off the ICP power. Refer to
Figure2 -1 for the location of the switches.
Note You can connect or disconnect BNC cables carrying signals without turning off
the computer.
UM.book Page 1 Tuesday, July 14, 1998 10:37 AM