791 and 793 Easy Entry™ Keypads
Description
The DMP 791 and 793 Easy Entry™ LCD Keypads are the industry’s first burglary/fire keypads with integrated access
control capability.
Each keypad provides three 2-button Panic keys, an AC power LED, an Armed LED, 32-character display, backlit
keyboard with easy-to-read lettering and an internal speaker. The 791 and 793 also provide four fully programmable
Class B protection zones you can program for a variety of burglary, fire, and access control applications.
Removing the Base
The keypad housing is made up of two parts: the
front
, which contains the circuit board and other components, and
the
base
. To remove the base, insert a flat screwdriver into one of the openings on the bottom and
gently twist
while pulling the halves apart. Repeat with the other opening.
Installing the Keypad
The Easy Entry keypads each
use the same plastic housing.
They both are designed to
easily install on any 4” square
box, 3-gang switch box, 695
and 696 backbox, or flat
surface. Figure 1 shows the
mounting hole locations on the
keypad base.
Harness Wiring
The 791 and 793 keypads are
each supplied with one 12-wire
data bus/zone harness and one
5-wire output/reader harness.
The harness connections and
color codes are shown in
Figure 1.
Wiring Specifications
When planning an installation,
keep in mind the following four
specifications:
1. You can install
individual keypads
on wire runs of up to 500 feet using 22 gauge wire or up to 1,000 feet using
18 gauge wire. To increase the wire length or add additional devices, a power supply is required.
2.
Maximum distance
for any one keypad bus circuit (length of wire) is 2,500 feet regardless of the gauge of wire.
This distance can be in the form of one long wire run or multiple branches with all wiring totaling no more than
2,500 feet.
3.
Maximum number of devices
per 2,500 feet circuit is 40. (
Note
: Each panel allows a specific number of
supervised keypads. Additional keypads can be added in the unsupervised mode. Refer to the panel’s
installation guide for the specific number of supervised keypads that are allowed.)
4.
Maximum voltage drop
between the panel (or auxiliary power supply) and any device is 2.0 VDC. If the voltage
at any device is less than the required level, an auxiliary power supply should be added at the end of the
circuit.
Refer to the 710 Module Installation Sheet (LT-0310) for more information. Also see the LX-Bus/Keypad Bus Wiring
Application Note (LT-2031).
Voltage Protection Diode
A separate clamping diode is included with each keypad in the
shipping package. This diode may be installed across the power inputs
of an electromagnetic lock to shunt excessive voltages away from the
keypad. Install diode as shown in Figure 2.
Guide Tabs
Reference Card
Back of 791/793
Keypad Base
Surface and Backbox
Mounting Holes
Combined 4-square
and 3-gang switch box
Mounting Holes
Surface and Backbox
Mounting Holes
Surface and Backbox
Mounting Holes
W hite/Red
- Zone 2
W hite/Orange
- Zone 3
W hite/Brown
- Zone 1
W hite/Yellow
- Zone 4
Red
- Auxiliary Power
Yellow
- Send Data
Green
- Receive Data
Black
- Ground
1K EOL
1K EOL
1K EOL
1K EOL
White
- Connect Reader Data 1
Green/White
- Connect Reader Data 0
Gray
- Door Strike Common
Violet
- Door Strike Normally Closed
Orange
- Door Strike Normally Open
Figure 1: Back of Keypad with Wire Harness
INSTALLATION SHEET
electromagnetic lock
or electric solenoid
type lock
Note
: Banded end of the
diode must be connected to
positive side of the supply
voltage.
supply
voltage
1N4001
1 Amp rectifier
Figure 2: Diode Installation
