As before, if the delay is negative, the order of the SYNC and OUT pulses is reversed.
The delay, pulse width, and frequency (when in the internal mode), of the OUT pulse
can be varied with front panel controls or via the GPIB or RS-232 computer interfaces.
TRIGGER MODES
This instrument has four trigger modes:
Internal Trigger: the instrument controls the trigger frequency, and generates the
clock internally.
External Trigger: the instrument is triggered by an external TTL-level clock on the
back-panel TRIG connector.
Manual Trigger: the instrument is triggered by the front-panel “SINGLE PULSE”
pushbutton.
Hold Trigger: the instrument is set to not trigger at all.
These modes can be selected using the front panel trigger menu, or by using the
appropriate programming commands. (See the “Programming Manual for -B
Instruments” for more details.)
GATING MODES
Triggering can be suppressed by a TTL-level signal on the rear-panel GATE connector.
The instrument can be set to stop triggering when this input high or low, using the front-
panel gate menu or the appropriate programming commands. This input can also be
set to act synchronously or asynchronously. When set to asynchronous mode, the
GATE will disable the output immediately. Output pulses may be truncated. When set to
synchronous mode, the output will complete the full pulse width if the output is high,
and then stop triggering. No pulses are truncated in this mode.
25
Summary of Contents for AVO-6HF-B
Page 37: ...PCB 158R4 LOW VOLTAGE POWER SUPPLY...
Page 39: ...PCB 197G HIGH VOLTAGE DISCHARGE BOARD...
Page 48: ...PERFORMANCE CHECK SHEET 48...