8 0 0 - 6 4 1 - 4 2 8 2
I n t r u s I o n • f I r e • A c c e s s • n e t w o r k s
w w w . d m p . c o m
2 5 0 0 N o r t h P a r t n e r s h i p B o u l e v a r d
Designed, engineered and
Assembled in u.s.A.
s p r i n g fi e l d , M i s s o u r i 6 5 8 0 3 - 8 8 7 7
LT
-0866 © 2012 Digital Monitoring P
roducts
12175
Specifications
Dimensions 6.8" W x 5.25" H x 5" D
Ordering Information: 699
Plexiglass
699-W Metal
Compatibility
The 699 Keypad Deskstand is compatible with all
DMP LCD Keypad models.
Accessories
778 Keypad Backplate
Dimensions
6.57" W x 4.57" H
Wiring Specifications
When planning a keypad bus installation, keep in mind the following specifications:
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. Maximum number of devices per 2,500 feet circuit is 40.
Note:
Each panel allows a specific number of supervised keypads. Add additional keypads in the unsupervised
mode. Refer to the panel installation guide for the specific 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 Module Installation Sheet
(LT-0310) for more information.
