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2.2.1.
Master Select Connector
A standard female DB9 connector is located on the rear panel for master frame
grabber selection. Use of this connector is optional. The CLV-411 will default to
frame grabber 1 as master when no connection is made. Table 2-1 identifies the DB9
signal assignments.
Table 2-1: Master Select DB9 Connector
Signal Name
SEL0 +
n/c
n/c
SEL1 +
n/c
SEL0 -
n/c
n/c
SEL1 -
Two control inputs (SEL0+/- & SEL1+/-) are used to select the master frame grabber.
The control inputs are received by opto-isolator devices for system electrical isolation.
SEL0 is logic "1" when 5-10 VDC is applied between SEL0+ and SEL0-. SEL0 is
logic "0" when 0 VDC is applied. Similarly, SEL1 is logic "1" when 5-10 VDC is
applied between SEL1+ and SEL1-. SEL1 is logic "0" when 0 VDC is applied.
DB9 Pin#
Notes
1
Master Select 0
2
no connection
3
no connection
4
Master Select 1
5
no connection
6
Master Select 0 Return
7
no connection
8
no connection
9
Master Select 1 Return
12
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