Quantum Composers 9500 Plus Series - Manual (Page 31)

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Operating the 9500+
Quick Start - Normal Internal Rate Generator Operation
The 9500+ has a powerful set of functions providing a number of modes of
operation for the internal or "System" rate generator (T
0
). Most of these
functions can be ignored if all one wants to do is generate a simple continuous
stream of pulses. Starting from the default settings, which can be recalled by
recalling configuration 0, the following parameters need to be set:
Pulse Width, Delay: Enter the Channel menus by pressing the letter key.
Enter the required pulse width and delay. Repeat
for each output channel.
T
0
Period: Enter the Rate menus by pressing the FUNCTION
key and then the RATE key. Set the desired pulse
period. Note that in general, the pulse delay, plus
the pulse width, plus a 75ns hardware reset
constant, for any channel must be less than the T
0
period.
Start: Press the RUN/STOP key to start generating pulses.
Stop: Press the RUN/STOP key a second time to stop
generating pulses.
Quick Start - Normal External Trigger Operation
To generate a single pulse for every external trigger event, based on the default
configuration 0, the following parameters need to be set:
System Mode: Enter the MODE menu by pressing the FUNCTION key
and then the MODE key. Select Single Shot mode.
EXTin: Enter the GATE/TRIG menu by pressing the FUNCTION
key and then the GATE/TRIG key. Press the NEXT key
until the EXTin parameter is highlighted. Select
triggered.
Level: Press the NEXT key until the Level parameter is
displayed. Set the trigger threshold voltage to
approximately 50% of the trigger signal amplitude.