Figure 2-8. Ground Configuration Jumper Settings - National Instruments PC/104-GPIB Getting Started

Setting the Shield Ground Configuration
Caution:
© National Instruments Corporation
The PC/104-GPIB is set at the factory with the jumper in place to connect
the logic ground of the PC/104-GPIB to its shield ground. This
configuration minimizes EMI emissions.
The PC/104-GPIB was tested for compliance with FCC standards with
the shield ground connected to logic ground. Removing the jumper might
cause EMI emissions to exceed any or all of the applicable standards
If your application requires that logic ground be disconnected from shield
ground, follow these steps:
1. Refer to Figure 2-2 to locate the shield ground jumper W5 on the
PC/104-GPIB module.
2. Remove the jumper and place it across only one of the jumper pins,
as shown in Figure 2-8.
Logic Ground Connected to Shield Ground (Default)
Logic Ground Disconnected from Shield Ground

Figure 2-8. Ground Configuration Jumper Settings

3. Record the jumper setting on the Hardware and Software
Configuration Form in Appendix C, Customer Communication.
Now that you have properly configured the hardware, return to the Install
the Hardware section at the beginning of this chapter for the installation
instructions.
Chapter 2 Hardware Configuration and Installation
W5
W5
2-13 PC/104-GPIB for Windows NT