Chapter 2
Configuration and Installation
SCXI-1102/B/C User Manual
2-4
©
National Instruments Corporation
If you want to change the W1 jumper setting, refer to Figure 2-2 as you
perform the following steps:
1.
Ground yourself via a grounding strap or via a ground connected to
your SCXI chassis. Properly grounding yourself prevents damage
to your SCXI module from electrostatic discharge.
2.
Remove the grounding screw of the top cover.
3.
Snap out the top cover of the shield by placing a screwdriver in the
groove at the bottom of the module and pushing down on the
screwdriver.
4.
Change the W1 jumper setting.
5.
Reinstall the top cover and grounding screw.
Figure 2-2.
Removing the SCXI Module Cover
Analog Configuration
Current-Loop Receivers
The SCXI-1102/B/C modules have pads for transforming individual
channels to current-to-voltage converters. National Instruments offers
an SCXI process-current pack of four 249
Ω
, 0.1%, 5 ppm, 1/4 W
resistors. The reference designators for the current loop resistors have
Grounding
Screw
Top of Module
Front Connector
Removable Cover