DMP Electronics 7760 Installation Manual
InstallatIon GuIde
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Drill 1/4" Hole for the Wiring Harness
Horizontal Alignment Line
#6 Screw
Location
#6 Screw
Location
✁
Cut along dotted line and use as a drill template to create mounting and wiring holes.
Legs
Glass
Keypad
Front
Building
Wall
778
Backplate
Lift screwdriver
handle up
toward you to
separate keypad
cover from base.
7760 LCD Glass Keypad
Description
The DMP Model 7760 LCD Glass Keypad offers the same functionality and exible features as standard DMP keypads.
The contemporary glass touch design offers an elegant, sleek look to accent any decor. Each 7760 keypad provides a
32‑character touchscreen backlit display, keyboard with easy‑to‑read lettering, three Panic icons, a multi‑functional AC
Power/Armed LED, and an internal speaker.
Installing the Keypad
The keypad housing is designed to easily install using two #6 screws on a at surface or optional 778 backplate. The
keypad housing is made up of two parts: a hinged cover and a base which contains the circuit board, glass touchscreen,
and keyboard components. A single 4‑wire harness is used to connect the 7760 to the keypad bus of a DMP control panel.
Figure 2 shows the back of the keypad with the 4‑wire harness connected.
Remove the Cover
Use the following steps and Figures 1 and 2 to remove the
hinged keypad cover.
1. Insert a at screwdriver into one of the slots on the
bottom of the keypad and gently lift the screwdriver
handle toward you while pulling the halves apart.
Repeat with the other slot.
2. Using your screwdriver, gently separate the left and
right sides of the cover by applying slight inward
pressure along the seam to disengage the internal
side snaps.
3. Gently lift the cover and remove from the four cover
hinges at the top and set aside.
Figure 1: Loosen bottom
of cover
Install the Base
Use the following steps to install the keypad base. Cut off the template below to use for mounting.
1. Place the template on the wall where the keypad is to be mounted and level using the horizontal alignment line.
2. Mark the two #6 screw locations and the wiring harness opening locations on the wall.
3. Install the two supplied #6 wall anchors where marked.
4. Drill a wiring harness hole no larger than 1/4” in diameter where indicated. Feed the 4‑conductor wire through
the created opening.
Note: Make sure the wire harness opening is small enough to be covered by the keypad base.
5. Connect the 4‑wire harness to the 4‑conductor Keypad bus wire from the wall.
6. Gently plug the 4‑wire harness connector onto the 4‑pin header through the opening in the back of the keypad.
See Figure 3.
7. Mount the 7760 keypad base to the #6 wall anchors using the provided #6 screws.
Replace the Cover
Use the following steps to reinstall the keypad cover.
1. Gently realign the top four hinges and set the cover into place.
2. Lower the cover and gently snap the two bottom latches and two internal side latches into place by squeezing the
base and cover together to reduce the stress on the legs. (See Figure 3)
Mounting Template
Figure 2: Loosen side
of cover
Harness Wiring
Black – Ground
Green – Receive Data
Yellow – Send Data
Red – Keypad Power
Surface Mounting
Screws (2)
Squeeze latches to
connect keypad cover to back.
Leg
Glass
Keypad
Front
Building
Wall
Plug 4-Wire Harness
into J4 Header
To
Panel
Keypad
Bus
Cover Hinge (4)
AC/Armed LED
Glass
Keypad Rear
Legs (2)
Figure 3 shows wiring harness mounting location and wiring assignments. Observe wire colors when connecting the
Red, Yellow, Green, and Black wires to the keypad bus. When wiring directly to the panel terminals, connect Red to
panel terminal 7, Yellow to terminal 8, Green to 9, and Black to panel terminal 10.
Figure 3: Keypad Side Mounting and Back Showing Wiring Harness Assignments
Wiring Specications
When planning a keypad bus installation, keep in mind the following specications:
1. DMP recommends using 18 or 22‑gauge unshielded wire for all keypad and LX‑Bus circuits. Do Not use twisted
pair or shielded wire for LX‑Bus and keypad bus data circuits. To maintain auxiliary power integrity when
using 22‑gauge wire do not exceed 500 feet. When using 18‑gauge wire do not exceed 1,000 feet. Install an
additional power supply to increase the wire length or add devices.
2. Maximum distance for any one circuit (length of wire) is 2,500 feet regardless of the wire gauge. 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.
As wire distance from the panel increases, DC voltage on the wire decreases.
3. Each panel allows a specic number of supervised keypads. Additional keypads can be added in the
unsupervised mode. Refer to the panel installation guide for the specic number of supervised keypads
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, add an auxiliary power supply at the end of the circuit. When
voltage is too low, the devices cannot operate properly.
Refer to the LX‑Bus/Keypad Bus Wiring Application Note (LT‑2031). Also see the 710/710F Module Installation Sheet
(LT‑0310) for more information.
Additional Power Supply
If the current draw for all keypads exceeds the panel output, you can provide additional current by adding a Model
505‑12 auxiliary power supply. Connect all keypad Black ground wires to the power supply negative terminal. Run
a wire from the power supply negative terminal to the panel common ground terminal 10. Connect all keypad Red
power wires to the power supply positive terminal. Do NOT connect the power supply positive terminal to any panel
terminal. Refer to the 504‑24 and 505‑12 Power Supply Installation Guide (LT‑0453) for more information.
Digital Monitoring Products 7760 Keypad Installation Guide
2
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