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3.1
Description
The DMP 1912XR system is made up of an alarm panel with built in communicator, an enclosure, and a
16.5 VAC transformer. You can add up to eight Security Command keypads, an expansion interface
module, loop and output expanders, and initiating and indicating circuit modules. You can also connect
auxiliary devices to the panel's output relays to expand the basic system. Combined current requirements
of additional modules may require an auxiliary power supply. Refer to section 7.6 in this manual when
calculating power requirements.
3.2
Wiring diagram
The 1912XR system below shows some of the accessory modules you can connect for use in various
applications. A complete description of each module follows.
DMP transformers:
Model 320
16.5 VAC 40VA
wire-in,
Model 321
16.5 VAC 40VA,
Model 322
16.5 VAC 100VA,
wire-in.
Wire-in is required
for NFPA 72.
Plug into
120 VAC
outlet not
controlled
by switch.
Maximum AC wire distance
Secondary Power Supply
With 16 gauge wire: 70 feet
With 18 guage wire: 40 feet
1.2 Amps max. charging current.
Use only 12 VDC rechargable
batteries. DMP Model 367.
Replace every 3 to 5 years.
Cold Water Pipe
Earth Ground
Bell
12 VDC nominal
Total current 1 Amp max.
Refer to LT-0164 for list
of approved indicating
devices.
Central Station System
Supplemental device.
Local System
Requires 866 Indicating
Circuit Module.
Household System
An alarm sounding device
must be installed indoors
so that it is clearly heard
in all sleeping areas.
Keypads
Model 670, 770, 771
100mA at 8 to 16 VDC
125mA with display lit.
1k Ω
Heat detectors, manual pull
stations, or any other UL listed
shorting device. Unlimited
number of units.
3.3
Lightning protection
Metal Oxide Varistors and Transient Voltage Suppressors help protect against voltage surges on input and
output circuits of the 1912XR. Additional surge protection is available by installing the DMP 370 or 370RJ
Lightning Suppressors.
Digital Monitoring Products, Inc.
System Components
DD, MPX
Selection
J11 J12
Ground Start Relay
K2
Use Model 305
Battery Only Restart
1
3
4
5
6
2
AC
AC
B +
B -
BELL
16 to 18 gauge wire
Supervision
DISARM
ARM
1k Ω
1k Ω
1k Ω
Keyswitch Arming Loop
May be connected to any loop.
See section 12.4.
Figure 3: 1912XR wiring diagram
Page 5
Dual Line Expansion
J10
J4
Tamper Header
AC wiring must be in
conduit and exit out the left
Wiring on terminals 5 through 17 must exit
side of the panel enclosure.
to the right and maintain a 1/4" separation
from the AC and battery positive wiring.
For power limited systems
Connects auxiliary power
to common of Output 1.
Command Processor Reset
J16
7
8
9
10
11
12
14
15
16
17
13
GND
RED
YEL
GRN
BLK
SMK
L5+
L5-
L1
GND
L2
1k Ω
1k Ω
1k Ω
3.3k Ω Resistor
DMP Model 309
Red
Yellow
Green
Black
LOOP EXPANDER
Model 714
15mA at 12 VDC
Smoke
Power
Detector
+
–
Relay
1k Ω
1k Ω
Refer to LT-0164 for a list of approved
1k Ω
4-wire smoke detectors and power
DMP Model 310
1912XR Installation Guide
J9
Expansion Connector
EPROM Socket
Relay Output 2
Use Model 305
K5
J15
K9
Relay Output 1
Use Model 305
18
19
L3
GND
L4
Output Header J2
All outputs must be connected to devices located
within the same room as the panel.
Loop 5 and all expanded loops are suitable for installation as Class
B (as applicable for the initiating and signaling line circuits per UL
864 Table 48.2 or 48.3), Central Station Type 1, Type 2, or Type 3
multiplex system. Installation limits under jurisdiction of local
1k Ω
authority.
LOOP EXPANDER
25mA at 12 VDC
3.3k Ω
For Sprinkler Supervision,
Normally Open devices
must be used.
1k Ω
supervision relays.
Refer to the 715 Installation Sheet (LT-
0162), or the smoke detector
manufacturer's compatibility guide, for
a list of approved detectors.
1912XR Installation Guide
Front Tamper
Rear Tamper
Tamper protection
when required for
Model 349A Attack
Resistant Enclosure.
Model 715
3.3k Ω
3.3k Ω
3.3k Ω
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