Avtech AV-1022-C-AS4 Instructions Manual page 9

(5) PULSE DELAY fine control. This varies the delay within the selected range.
(6) PULSE WIDTH range switch. This selects one of three pulse width ranges:
0.05 ps - 0.5 us
0.5 us -5 pus
5 ps - 50 us
(7) PULSE WIDTH fine control. This varies the pulse width within the selected range.
(8) AMPLITUDE A fine control. This varies the output amplitude between 0 and +5
Volts.
(9) OUT connector. This connector provides the main output. It will supply up to +5V
into 50Q. The output impedance is 500.
(10) SYNC OUT connector. This output supplies a TTL-level pulse (nominally) to trigger
oscilloscopes or other measurement equipment. The output pulse width is nominally
fixed at 50ns.
(11) MONITOR connector. This output provides +1V into 50Q (+4V into 1kQ) with same
delay, pulse width, and frequency as the main output. The amplitude of this output is
completely independent of the amplitude of the main output.
(12) EXT TRIG connector. If the REPETITION RATE range switch (item 2) is in the
"EXT" position, the instrument will be triggered by an external TTL-level trigger applied
to this connector. Note that this is a high-impedance input; it is not terminated in 50. If
the REPETITION RATE range switch is not in the "EXT" position, this input has no
effect. However, it should be left unconnected to avoid electromagnetic interference
with the internal clock.
(13) DUTY CYCLE OVERLOAD indicator. This LED indicator will light if the duty cycle
exceeds 45%. If this light is on, the pulse generator has stopped triggering and the duty
cycle should be reduced.