714/715 Installation Guide
Digital Monitoring Products
3
LX-Bus Zone Numbers
The 714-D22 module provides 4 zones. When set to an address, the module uses four zone numbers. For example,
setting the module to the LX-Bus address 502 (
TENS
= 0,
ONES
= 2) sets the module zone numbers to 502, 503, 504,
and 505.
Refer to Table 2 for a partial listing of XR100/XR500 Series panel LX-Bus zone numbers.
Note:
XR100 Series panels only use LX-Bus number one.
LX-Bus
Address
LX-Bus
Number
Switches
Tens Ones
Zone
Numbers
501
1
0
1
501 to 504
506
1
0
6
506 to 509
623
2
2
3
623 to 626
654
2
5
4
654 to 657
742
3
4
2
742 to 745
768
3
6
8
768 to 771
833
4
3
3
833 to 836
877
4
7
7
877 to 880
919
5
1
9
919 to 922
994
5
9
4
994 to 997
Table 2: LX-Bus Zone Numbers
Optional Accessories
You can replace the standard wiring harness with the optional 718T Plug-in Screw Terminal. The enclosure base can
also accommodate the 719T Terminal Boards for the 714-D22, which passes through the panel LX-Bus wiring. The
719T includes 1k EOL resistors.
Wiring Specifications for Keypad and LX-Bus
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.
For additional information refer to the panel installation guide and LX-Bus/Keypad Bus Wiring Application Note
(LT-2031) or the 710 Installation Guide (LT-0310).
