Wiegand Readers
Installation Guide
28
CSI Readers
6.
Connect the white/orange wire (+12 VDC) to an external 12 VDC power supply.
This power supply
must
provide at least 350 mA at 12 VDC.
7.
Connect the orange/white wire (POWER COMMON) to the external power supply
and to terminal 8.
Caution:
In the following step, ensure that the cable shield is
not
electrically connected to the reader.
8.
Connect the cable shield using one of the following methods:
✧
DPU-7920 connection –
When connecting the reader to a DPU-7920, connect
the shield directly to a good earth ground.
✧
DPU-7910A connection through a breakout box –
When connecting the
reader to a DPU-7910A through a breakout box, connect the shield and earth
ground to terminal 2.
Connecting the 66-Bit Wiegand Reader and the ESSEX PIN Pad
Use the following steps to connect a 66-bit Wiegand reader and ESSEX PIN pad to a
DPU-7920, or to a CSI breakout box for use with a DPU-7910A (see
Reader Connections:
1.
Connect the white/green wire (DATA 1) to terminal 3.
2.
Connect the white/blue wire (DATA 0) to terminal 5.
3.
Connect the white/brown wire (RED LED) to terminal 6.
4.
Connect the brown/white wire (GREEN LED) to terminal 7.
Figure 18. 66-bit Wiegand Reader Cable Connections
TB3
or
TB4
1
2
3
4
5
6
7
8
DPU-7920
(350 mA minimum)
+
–
12 VDC
Power Supply
(350 mA minimum)
–
+
12 VDC
Power Supply
Direct
Connections:
Breakout Box
Connections:
(See Note)
to DPU-7910A
Note:
Connect shield to earth ground at DPU or breakout box location
only. Ensure shield does
not
electrically connect to the reader.
White/Blue
(DATA 0)
Brown/White
(GREEN LED)
White/Brown
(RED LED)
White/Green
(DATA 1)
White/Orange
(+12 VDC)
Orange/White
(PWR COMMON)
SHIELD
Green/White
(D1 COMMON)
Blue/White
(D0 COMMON)
White/Green
Orange/White
(DATA 1)
(PWR COMMON)
Orange/White (PWR COMMON)
White/Blue (DATA 0)
Brown/White (GREEN LED)
White/Brown (RED LED)
Green/White (D1 COMMON)
Blue/White (D0 COMMON)
White/Orange (+12 VDC)
1
3
5
6
7
8
2
From
Reader
From
Reader
SHIELD
(See
Note)
4
Summary of Contents for CARDPIN1
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