A positive-going pulse of greater than 250 msec is
treated as a level-sensitive trigger. Shorter pulses
are treated as a pulse-sensitive trigger. The
minimum detectable pulse length is 200
µ
sec.
During level-sensitive operation, applying a voltage
to the trigger input will set the amplifier to the
“Operate” mode. When the applied voltage drops to
zero, the unit reverts to the system-sleep mode.
In the pulse-sensitive mode, a positive-going pulse
will toggle the amplifier between the system-sleep
consumption and “Operate” states, duplicating the
action of the right-hand front-panel button when it
is held for three seconds.
The front-panel button remains operative when
the trigger input is used. Therefore, using the
front-panel button will put the amplifier out of
“sync” with the trigger control device. When
used with level-sensitive trigger operation, the
next trigger action will automatically restore
“sync”. However when using pulse-sensitive
trigger operation, “sync” can only be restored by
pressing the front-panel button a second time.
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