![background image](http://html.mh-extra.com/html/national-instruments-corporation/scxi-1162/scxi-1162_user-manual_710253020.webp)
Configuration and Installation
Chapter 2
SCXI-1162 User Manual
2-4
© National Instruments Corporation
The jumpers are used as follows:
•
User-configurable jumpers
-
Jumper W1 determines whether only 24 or all 32 lines of the rear connector are driven
when the rear connector is configured for parallel operation. If the rear connector is
configured for serial operation, this jumper is irrelevant.
-
Jumper W2 configures the rear connector to either send data in parallel to a DIO board or
to allow serial communication between either a DIO or an MIO board.
-
Jumpers W3 and W4 select whether the SCXI-1162 is to be connected to a DIO-type
board or to an MIO-type board. The MIO-type data acquisition boards are National
Instruments boards that have analog inputs and digital inputs and outputs. These boards
include MIO-16 boards and the AT-MIO-64F-5 board; Lab-NB, Lab-PC, Lab-PC+, and
Lab-LC boards; and PC-LPM-16 boards. The DIO-type boards are National Instruments
boards that have only digital inputs and digital outputs. These boards are the DIO-24,
DIO-32F, and DIO-96 boards. If the SCXI-1162 module is controlled via the backplane
the position of these jumpers is irrelevant.
-
Jumper W5 connects a pullup resistor to the SERDATOUT signal on the rear signal
connector.
-
Jumper W6 carries the SCXIbus MISO line, after buffering, to the SERDATOUT signal
on the rear signal connector.
•
Reserved jumper
-
Jumper W7 is reserved and should not be connected.
To change the configuration of the module, use the following procedure:
1. Remove the grounding screw of the top cover.
2. Snap out the top cover of the shield by placing a screwdriver in the groove at the bottom of
the module.
3. Remove the jumpers to be changed and replace them on the appropriate pins.
4. Record the new jumper settings on the SCXI-1162 Hardware Configuration Form in
Appendix F.
5. Snap the top cover back in place.
6. Replace the grounding screw to ensure proper shielding.
Jumper W1
Jumper W1 determines the number of lines driven at the rear connector when jumper W2
configures the rear connector for parallel communication. The position of jumper W1 is only
relevant when jumper W2 is set to PAR. Jumper W2 does not affect serial communication;
therefore all 32 channels are always available through serial data transfers. When you connect
the SCXI-1162 to a DIO-32F or to a DIO-96, all 32 lines may be driven. However, when you