Triggering
The following table shows the pins used for input and output triggers, which are used during synchronous scanning or handshaking:
| Pin | Assignment |
|---|---|
| 2 | Ground |
| 3 | AUX Trigger In |
| 6 | Measurement Complete (MC) |
| 9 | External Trigger In (Trigger/Sample Trigger) |
Cable Accessories
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Note When certain NI-PXI 407x devices are installed in the right-most slot of a PXI/SCXI combination chassis, they can exchange measurement complete (MC) and the input trigger through the backplane, and no cable is needed. Refer to PXI Express Compatibility and Scanning Switch Modules for more information. |
| AUX Trigger Cable |
This cable allows the NI 4070/4071/4072 to trigger NI switches, third-party switches, and any other external device during synchronous scanning or handshaking scanning.
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| SH9MD-AUX Cable |
This cable allows the NI 4070/4071/4072 to control SCXI switches, send measurement complete (MC), and receive external trigger. This functionality allows the NI 4070/4071/4072 to work under both synchronous scanning and handshaking scanning. Refer to Scanning Switch Modules for more information. |
For installation instructions for National Instruments switch modules, refer to the NI Switches Help at either of the following locations:
- Start»Programs»National Instruments»NI-SWITCH»Documentation»NI Switches Help (if you have installed NI-SWITCH)
- NI Product Manuals Library Web site (if you have not installed NI-SWITCH)