NI SCXI-1193 Dual 16×1 Multiplexer Topology

The following figure represents the NI SCXI-1193 dual 16×1 multiplexer topology.

The following figure shows the reset position of the NI SCXI-1193 in the dual 16×1 multiplexer topology.

Making a Connection

The NI SCXI-1193 in this topology contains two banks of 16 input channels connected to a common channel. These input channels are referred to as ch<0..31>, and the two common channels are referred to as com0 and com2. You can only connect to the common channel that is in the same bank. The banks are organized as such:

Input Channels	Common Channel
ch0, ch1, ch2, ch3, ch4, ch5, ch6, ch7, ch8, ch9, ch10, ch11, ch12, ch13, ch14, ch15	com0
ch16, ch17, ch18, ch19, ch20, ch21, ch22, ch23, ch24, ch25, ch26, ch27, ch28, ch29, ch30, ch31	com2

For example, you can connect ch8 to com0; however, you cannot connect ch8 to com2 in this topology.

You can connect the channels of the NI SCXI-1193 using the niSwitch Connect Channels VI or the niSwitch_Connect function. For example, to connect channel 16 to common 2, call the niSwitch Connect Channels VI or the niSwitch_Connect function, with the channel 1 parameter set to ch16 and the channel 2 parameter set to com2.

When scanning the NI SCXI-1193, a typical scan list entry could be ch2->com0;. This entry routes the signal from ch2 to com0.