ExSync Line Synchronization with Electronic Shutter Control is the fourth mode (Figure 3.4.5). It gives the user asynchronous hardware control both start and end of integration. The control lines ExSync and ElectronicShutter are CameraLinkTM lines CC1 and CC2 respectively as described in Reference A, and must be asserted by the frame grabber. Synchronization
Line
Start
Trigger
Line
End
Start
of
Integration
End
of
Integration
1
Free
Running
(factory default)
The CAM/CMOS
2K.LS drives the frame
grabber(s).
Motion of the subject
being imaged must be
synchronized to the
CAM/CMOS-2K.LS
.
The
CAM/CMOS -
2K.LS
LineValid
Camera
Output
Triggers
the
frame
grabber(s)
by
Going
High
Line Ends
tLinePeriod - tXFR
after
LineValid
Camera Output
Goes High
User may set
tLinePeriod
with Software
tInitiation
+ tReset
-tXFR
after
LineValid
Camera Output
Goes High
tIntegration
after
start of Integration
User may set
tIntegration
with Software
2ExSynch
Sychronization
When the User
takes
ExSynch
Camera Input Low
3
ExSynch
Synchronization
with
Programmable
Integration Time
tIntegration + tReset
after User
takes ExSync
Camera Input High
4
ExSynch
Synchronization
with
Electronic
Shutter
Control
tReset
after
the User
takes
ElectronicShutter
Camera Input High
When
the User
takes the
ElecShutter
Camera Input Low
Table 3.4.1
Summary of CAM/CMOS-2K.LS Modes
Mode
The
User
Triggers
the
CAM/CMOS-
2K.LS
by
taking
ExSynch
Camera
Input
Low
The User
Synchronizes
the
CAM/CMOS-2K.LS
via an
Encoder.
When the User
takes
ExSynch
Camera Input Low
Again
(In this way,
the
Line Rate
is
User-Set
by
Frequency
of
ExSynch)
tReset
after
the System
takes
the
ExSynch
Camera Input
High