Data Translation DT3162, Руководство пользователя

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Appendix B
42
Screw terminal block TB1 (+12 V) accepts an ex12 VDC signal
and a ground signal. For most applications, a 12 VDC regulated 2.5 A
camera power supply is suitable. The camera power input from the
Camera Interface Module is rated for 0.75 A (maximum) at 13 VDC
(maximum). The power input protection circuitry consists of a 0.75 A
hold PTC resettable fuse, a 1500 W transient suppressor diode, and a
3 A Schottsky diode for reverse bias protection. The power filtering
consists of a ferrite bead, 100 pf capacitor, and a 10
µ
f capacitor.
Screw terminal block TB2 (TRIGGER) accepts an external trigger
input signal and a ground signal. The external trigger circuitry is
optically coupled then inverted to maintain input polarity, and
driven to the DT3162.
The VCP connector (J1) on the Camera Interface Module connects to
connector J1 on the DT3162 board. The pin assignments of the VCP
connector on the Camera Interface Module are listed in
Table 14 .
Table 14: Camera Interface Module - VCP Connector Pin Assignments
Pin Description Pin Description
1 Vertical Sync
Input/Output
a
2 Horizontal Sync
Input/Output
a
3 Digital Ground 4 Not Connected
5 Not Connected 6 Trigger Output
7 Expose/Reset Input 8 Reserved
9 Pixel Clock Output
−
b
10 Pixel Clock
b
11 Digital Ground 12 Not Connected
13 Not Connected 14 +5 V (250 mA) Input
15 Digital Ground 16 Reserved
17 Reserved 18 Reserved
19 Digital Ground 20 Not Connected