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1.3.1.
Master Frame Grabber Selection
Master frame grabber selection is supported via the master select port. Note that the
use of this port is optional.
Two opto-isolated control inputs are provided via a DB9 connector on the rear panel.
Voltage levels applied to these inputs select the master frame grabber. Master
reassignment occurs instantaneously, enabling real-time master selection. When no
connection is made to the DB9, Frame Grabber 1 is master (default). See Section
2.2.1 for connector pin assignments and signal characteristics.
The front-panel indicator LEDs identify the current master frame grabber.
Table 1-1: Master Frame Grabber Select Inputs
SEL1
SEL0
0
0
0
1
1
0
1
1
No Connection
Master Frame Grabber
Frame Grabber 1
Frame Grabber 2
Frame Grabber 3
Frame Grabber 4
Frame Grabber 1
6
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