CSI CARDPIN1, Руководство по установке

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Installation Guide Watermark Reader Support
CSI Readers 19
Caution: When connecting the reader to a DPU-7920 series controller, do not connect the cable
shield to terminal 2 on the DPU (TB3 or TB4). These controllers use terminal 2 as an
auxiliary input.
The cable shield must be connected to a good earth ground at one location only . When
using a DPU-7910A series controller, you can configure the DPU to provide the neces-
sary ground by placing the jumper labeled J12 across posts A and B. This places chassis
ground at terminal 2 of the attached breakout box. You may then connect the cable shield
to terminal 2 of the breakout box.
Note: The DPU-7920 series controllers cannot be configured to provide the chassis ground for the
cable shield. These controllers use terminal 2 as an auxiliary input.
Figure 12. Typical Watermark Reader Connection
TB3 or TB4
1
2
3
4
5
6
7
8
+12 VDC
DATA
CLOCK
GROUND
From Reader
DPU-7920 Connections:
SHIELD
1
2
3
4 5
6
8
DATA
Breakout Box Connections:
GROUND
CLOCK
7
SHIELD
To DPU-7910A
Reader Port
+12
VDC
From Reader