Agilent Technologies 4339B - Page 110

Rear
P
anel
4339B
Rear P
anel
Figure
3-4.
Rear
P
anel
External Trigger
The
Ext
(External) Trigger
terminal
is
used
to
trigger
the
4339B
by
inputting
a
positive-going
TTL
pulse
,when
the
4339B
is
set
to
external
trigger
mode
.
Figure
3-5
shows
the
specications
required
for
the
TTL pulse
.
Figure 3-5. Required External Trigger Pulse Specication
3-20 Function Reference