20
About the Trigger Signals
Trigger signals (GPIO1 - 8), which are
used for recording control and Color
Camera control, consist of edge and
level signals.
Edge signals
High-edge, low-edge and both-edge
of an edge signal can be specified.
Recording control and Color Camera
control start when a change in an edge
of the specified signal is detected.
High-edge
Both-edge
Low-edge
(Time)
High
Low
For example, when a high-edge
of “AUTOZOOM” is specified (see
“Trigger1 to 8” on page 80)
:
Start of AUTOZOOM
(Time)
igh
ow
Level signals
The high-level and low-level of a level
signal can be specified and recording
control occurs when a change is
detected in the specified signal.
When high-level is specified:
A change in the signal from low to
high starts recording and a change
from high to low stops it.
Recording starts
Recording
stops
(Time)
High
Low
When low-level is specified:
A change in the signal from high to
low starts recording and a change
from low to high stops it.
Recording starts
Recording stops
(Time)
High
Low
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