712-8 INSTALLATION GUIDE | DIGITAL MONITORING PRODUCTS
3
ADDITIONAL INFORMATION
Wiring Specifications
DMP recommends using 18 or 22 AWG for all LX‑Bus and Keypad Bus connections. The maximum wire distance between
any module and the DMP Keypad Bus or LX‑Bus circuit is 10 feet. To increase the wiring distance, install an auxiliary
power supply, such as a DMP Model 505‑12. Maximum voltage drop between a 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.
To maintain auxiliary power integrity when using 22‑gauge wire on Keypad Bus circuits, do not exceed 500 feet. When
using 18‑gauge wire, do not exceed 1,000 feet. Maximum distance for any bus circuit is 2,500 feet regardless of wire
gauge. Each 2,500 foot bus circuit supports a maximum of 40 LX‑Bus devices.
For additional information refer to the LX‑Bus/Keypad Bus Wiring Application Note (LT‑2031) and the 710 Bus Splitter/
Repeater Module Installation Guide (LT‑0310).
Connecting to Other Modules
Using a 4‑wire connector as an extension of the Keypad Bus or LX‑Bus, you can easily connect the 712‑8 to multiple
modules on the same bus. Observe wire colors when making connections. For more information about wiring
connections, refer to Figure 3.
Data LED
The LED on the 712‑8 flashes each time the module responds to a poll from the panel. If there is a problem with the
panel, system programming, or the connection between the panel and module, the LED stops flashing and a system
trouble message displays on the keypad.
Compliance Listing Specifications
UL Commercial Burglary
The 712‑8 Zone Expansion Module must be mounted inside the control unit enclosure or other Listed enclosure.
ULC Commercial Burglary (XR150/XR550 Series Panels)
If the 712‑8 is installed in another enclosure, a DMP Model 307 Clip‑on Tamper Switch programmed as a 24‑Hour zone is
required.
The 712‑8 zones can only be used in Low Risk applications. Medium or High Risk applications must use panel zone
inputs.
DMP PANEL
KEYPAD BUS
712-8
ADDRESS
EXPANDER ZONES
1-4 5-8
PANEL ZONES
XT30/XT50 Series,
XR150/XR550
Series
1
11‑14
21‑24
2
21‑24
31‑34
3
31‑34
41‑44
4
41‑44
51‑54
XT30/XT50 Series,
XR150/XR550
Series
5
51‑54
61‑64
6
61‑64
71‑74
7
71‑74
81‑84
8
81‑84
91‑94
XR550 Series
9
91‑94
101‑104
10
101‑104
111‑114
11
111‑114
121‑124
12
121‑124
131‑134
13
131‑134
141‑144
14
141‑144
151‑154
15
151‑154
161‑164
712-8
ADDRESS
XR150/XR550 SERIES LX-BUS
PANEL ZONE RANGE
LX-BUS 1
LX-BUS 2
LX-BUS 3
LX-BUS 4
LX-BUS 5
0
500‑507
600‑607
700‑707
800‑807
900‑907
1
501‑508
601‑608
701‑708
801‑808
901‑908
2
502‑509
602‑609
702‑709
802‑809
902‑909
...
...
...
...
...
...
7
507‑514
607‑614
707‑714
807‑814
907‑914
8
508‑515
608‑615
708‑715
808‑815
908‑915
9
509‑516
609‑616
709‑716
809‑816
909‑916
...
...
...
...
...
...
12
512‑519
612‑619
712‑719
812‑819
912‑919
13
513‑520
613‑620
713‑720
813‑820
913‑920
14
514‑521
614‑621
714‑721
814‑821
914‑921
15
515‑522
615‑622
715‑722
815‑822
915‑922
Table 1: Keypad Bus Addresses
Table 2: LX-Bus Addresses
