SHC50-68 50-Pin
Cable Connector
You can use an optional SHC50-68 50-pin-to-68-pin cable for pattern generation output. The cable connects to the NI PXI/PCI-5411/5431 (VIDEO) DIGITAL PATTERN VHDCI female connector.
Connecting the SHC50-68 Cable Connector
The following figure shows the 68-pin female connector pin assignments on the SHC50-68 cable.
Signal Descriptions
The following table shows the pin names and signal descriptions used on the NI 5411/5431 (VIDEO) DIGITAL PATTERN connector.
(VIDEO) DIGITAL PATTERN Connector Signal Descriptions
| Signal Name | Type | Description |
|---|---|---|
| DGND | — | Digital ground. |
| EXT_TRIG | Input | External trigger—The external trigger input signal is a TTL-level signal that you can use to start or step through a waveform generation. Refer to Triggering for more information. |
| MARKER | Output | Marker—A marker is a TTL-level output signal that you can set up at any point in the waveform being generated. You can use this signal to synchronize or trigger other devices at a certain time within waveform generation. |
| NC | — | Not connected. |
| PA<0..15> | Output | Digital pattern outputs—The 16-bit digital representation of the analog waveform is available on these output pins as digital pattern outputs along with the PCLK signal to which it is synchronized. This data is available directly from the memory after some Sample clocks pipeline delay. The digital pattern outputs are TTL output levels. |
| PCLK | Output | Digital pattern clock—The digital pattern clock output synchronizes the digital pattern output. This data is available directly from the memory after some Sample clocks pipeline delay. The PCLK output is a TTL output level. |
| RFU | — | Reserved for future use. Do not connect signals to this pin. |
| +5V | Output | +5 V power—A +5 V output signal is available on the NI 5411/5431 to power external devices. The maximum current you can draw is 100 mA. |