Paradox Digiplex DGP-641, Reference And Installation Manual

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6 Installer’s Guide
2.0 INSTALLATION
2.1 C
ONNECTING THE
K
EYPAD
The Digiplex™ LCD keypads (DGP-641 and DGP-641ACC) are
connected to the control panel's bus in a star and/or daisy chain
configuration. This 4-wire communication bus provides power
and two-way communication between the control panel and all
modules connected to it. Connect the four terminals labeled red,
black, green and yellow of each keypad to the corresponding
terminals on the control panel (refer to Figure 1 on page8).
Refer to the
Digiplex Control Panel's Reference & Installation
Manual for the maximum allowable installation distance from the
control panel.
See Figure 4 on page 10 for connection drawings for the REX
device, reader, locking device and door contact to the desired
DGP-641ACC keypad. A typical installation is shown in Figure
2 on page 9 .
The door contact follows the control panel’s EOL
definition. When EOL is enabled and the door contact is
not used, place a 1k
Ω Ω
resistor across the keypad’s Z1
and BLK input terminals. If EOL is not enabled, use a
jumper. If the REX device is not used, place a jumper
across the keypad’s Z2 and BLK input terminals.
2.2 C
ONNECTING
K
EYPAD
Z
ONES
Each keypad has one traditional hardwired input terminal,
allowing you to connect one detector or door contact directly to