Digital Monitoring Products, Inc. | 7800 Series Installation and Programming Guide
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Wire for Access Control
Internal Access Control Reader
7873/7873H and 7872 keypads provide a built-in proximity card reader that is
compatible with most standard 125 kHz proximity credentials. An external 13.56 MHz
proximity reader can be connected and will be compatible with 13.56 MHz proximity
credentials. For a list of publicly supported card formats, see Public Card Formats.
Note:
Some proximity credentials are not compatible with DMP proximity
keypads. Thoroughly test the intended proximity credentials with the application
before installation. DMP does not guarantee compatibility with credentials not
purchased from DMP.
External Access Control Reader
To accept Wiegand data input from other external card readers, connect a 12 VDC
external card reader to a 7873/7873H keypad. Connect the red and black power wires
from the card reader to the power wires from the panel. These connect in parallel with
the keypad power wires. Connect the Data 1 (reader) wire to the white wire on the
5-wire keypad cable. Connect the Data 0 (reader) wire to the green/white wire on the
5–wire keypad cable. See Figure 7.
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