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DR4300 Circular Chart Recorder
DR4300 Circular Chart Recorder Product Manual 12/03
34
7
TB2
TB1
7
TB2
TB1
Main PCA
Pen 2
Main PCA
Pen 1
24142
J9
Digital
Input
Switch #1
Digital
Input
Switch #2
Connect shield
to ground at
one end only
Switch
Common
Digital
Input PCA
P3D
Figure 2-12 Digital Input Wiring