Princeton Instruments PI-MAX4 - Page 199

Chapter 13 PI-MAX4: 1024i-RF and RF Modulation 199
3. On the Trigger expander, select Internal or External triggering.
External: Verify the trigger characteristics on the Trigger expander match the active
trigger edge for the trigger pulse being used.
Internal: Perform the following procedure to configure the Internal Trigger parameters
on the
SuperSYNCHRO Timing expander:
a. From the Mode pull-down menu, select Repetitive.
b. Use the hyperlinks at the top of the SuperSYNCHRO Timing expander to make any
changes to:
• Intensifier Settings;
• Trigger Settings;
• Phosphor Decay Delay;
• Frames to Save;
• Readout Mode.
c. Configure the Internal Trigger Frequency.
d. To enable trigger outputs on the AUX I/O cable’s SyncMASTER1 and
SyncMASTER2 connectors, click on the SyncMASTER: ON button.
When
SyncMASTER is enabled, the output of the SyncMASTER1 connector is
driven at the frequency specified by the
Internal Trigger Frequency.
The
SyncMASTER2 frequency is also specified by the Internal Trigger
Frequency
, but can be delayed from 0 ns to 6,553,500 ns, in 100 ns increments, by
configuring
SyncMASTER
2
Delay appropriately.
NOTE:
The blue SyncMASTER1 and black SyncMASTER2 cables
are used to differentiate these output signals when they are
shown on the SuperSYNCHRO timing diagram.
e. To drive an RF amplifier via the User RF Out connector on the back of the
PI-MAX4: 1024i-RF, click the
User RF Output ON button.
Configure the following RF Output parameters as required:
• Output Frequency
• Output Amplitude
The User RF Output port on the back of the camera must be connected to a
standard RF 50  load.
f. Configure the following parameters:
• Modulation Duration;
• Modulation Frequency;
• Modulation Phase.
g. Configure the following AUX Output Trigger parameters as required:
• AUX Output Delay;
• AUX Output Width.
4. Verify that the I.I.T. Power switch on the rear of the PI-MAX4: 1024i-RF is in the ON
position, and
Enable Intensifier has been checked on the Common Acquisition
Settings
expander.
5. When the experiment is ready, click on the Acquire button.