Chapter 2
Configuration and Installation
© National Instruments Corporation
2-5
SCXI-1162 User Manual
connect to a DIO-24, only the first 24 of the lines may be driven, as the DIO-24 only accepts 24
inputs and grounds the additional lines. Do not connect the SCXI-1162 to a DIO-24 with the
module configured to drive all 32 lines in parallel, as this will cause driver contention.
Using Jumper W1
To drive all 32 lines, set the jumper to position 32. To drive only the first 24 lines, set the
jumper to position 24. Again, this jumper is only relevant when jumper W2 is set to PAR.
Jumper W2
Jumper W2 configures the rear connector for either serial or parallel communication. With the
jumper set to parallel, the rear connector is configured to send the data from the module inputs
directly to a DIO board in parallel. In this setting, it is important to properly set jumper W1.
With the jumper set to serial, the rear connector is configured for serial communication between
a data acquisition board and the SCXIbus. In this setting, the position of jumper W1 is
irrelevant.
Using Jumper W2
To set the rear connector to parallel communication, set the jumper to the PAR position. In this
mode, set jumper W6 to PAR to prevent the MISO line from inadvertently driving one of the
parallel lines. To set the rear connector to serial communication, set the jumper to the SER
position. If the SCXI-1162 is being controlled by the SCXIbus and its rear connector is not
connected to anything, the position of this jumper is irrelevant.
Jumpers W3 and W4
These jumpers configure the rear connector to accept signals from either an MIO-type or a
DIO-type data acquisition board. Both jumpers have labels indicating the DIO and the MIO
configurations. As indicated previously, you can use two types of data acquisition boards–
MIO-type and DIO-type–to communicate with the SCXI-1162. If you want to use the
SCXI-1162 with a DIO-type board, place the jumpers in the DIO position. This position is the
factory setting. If you want to use the SCXI-1162 with an MIO-type board, place the jumpers in
the MIO position. If you are controlling the SCXI-1162 via the SCXI backplane and are not
using the rear connector, the position of these jumpers is irrelevant.
Jumper W5
Position A connects a 2.2 k
Ω
pullup resistor to the SERDATOUT line. This is the factory-
default setting. Position B does not connect the pullup resistor to the SERDATOUT line.
Jumper W6
Position DIO connects the SCXIbus MISO line, after buffering, to the SERDATOUT pin of the
rear signal connector when used with a DIO-type board. Position MIO connects the SCXIbus
MISO line, after buffering, to the SERDATOUT pin of the rear signal connector when used with
an MIO-type board. In these settings, along with the proper setting of jumper W5, the data
