DMP Electronics 7872, Installation Manual

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8
External Access Control Reader
To accept Wiegand data input from other external card readers, connect a 12VDC external
reader to the 7873 keypad. Connect the red and black power wires from the reader to
the power wires from the panel. These connect in parallel with the keypad power wires.
Connect the Reader (Data 1) wire to the white wire on the 5–wire keypad harness. Connect
the Reader (Data 0) wire to the green/white wire on the 5–wire keypad harness. See
Figure 3.
Magnetic Lock and Door Strike Wiring
The 7873 keypad provides one internal programmable
Form C single pole, double throw (SPDT) relay for
controlling door strikes or magnetic locks. Three wires
on the 5-wire harness, violet normally closed (N/C),
gray common (COM), and orange normally open
(N/O), allow you to connect devices to the relay. The
Form C relay draws up to 15mA of current and the
contacts are rated for 1 Amp at 30VDC maximum,
resistive.
Wiring the 333 Suppressor
One Model 333 Suppressor is included with
the 7873 keypad. If the device being controlled
by the relay is connected to the N/O and C
wires, install the suppressor on the N/O and
C wires. If the device is connected to the N/C
and C wires, install the 333 on N/C and C
wires. Refer to Figure 4a and 4b.
Using the 7800 Keypad for Access Control
1K EOL
1K EOL
1K EOL
1K EOL
Green/White –
Connect Reader
Data 0
White – Connect
Reader Data 1
Orange
– N/O
Gray
– Common
Violet – N/C
Yellow/White
White/Yellow
Orange White
White/Orange
Red/White
White/Red
Brown/White
White/Brown
Black – Ground
Green
– Receive Data
Yellow – Send Data
Red – Keypad Power
– Zone 4
– Zone 3
– Zone 2
– Zone 1
All Keypads
Zones 1 to 4
7800 Series Keypads
Model 333 Supressor
Commo
n
– +
Magnetic Door Lock
DMP 505-12
Power Supply
Normally
Open
Normally
Closed
Surface and Backbox
Mounting Holes
Keypad Back
Figure 4a: Magnetic Lock Wiring