BNC-2121 Connector Accessory for 660X Devices
10
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Retriggerable Single Pulse Generation
To generate a retriggerable single pulse, complete the following steps.
1.
In the C interface or in LabVIEW, select an internal timebase as
SOURCE of the selected counter.
2.
Specify the pulse delay and pulse width in the C interface or
LabVIEW.
3.
Connect a wire from the
Trigger
spring terminal to GATE of the
selected counter.
4.
Press the
Digital Trigger
button to generate a pulse. Any time you
want an additional pulse, press the
Digital Trigger
button to generate
a pulse on OUT of the counter.
Note
A pulse is generated on every active GATE edge.
5.
To see the signal, connect an oscilloscope or analog input device to
OUT of the selected counter.
Continuous Pulse-Train Generation
To generate a continuous pulse-train, complete the following steps.
1.
In the C interface or in LabVIEW, select an internal timebase as
SOURCE of the selected counter.
2.
In the C interface or in LabVIEW, specify the frequency and duty cycle
of the pulse train.
3.
To see the signal, connect an oscilloscope or analog input device to
OUT of the selected counter.
Frequency Shift-Keying
To perform frequency shift-keying, complete the following steps.
1.
In the C interface or in LabVIEW, select an internal timebase as
SOURCE of the selected counter.
2.
Connect a wire from the
Trigger
spring terminal to GATE of the
selected counter.
3.
Press the
Digital Trigger
button to drive GATE into a high state.
4.
Release the
Digital Trigger
button to drive GATE into a low state.
5.
To see the signal, connect an oscilloscope or analog input device to
OUT of the selected counter.
