Installation GUIDE
725 24 VDC Zone Expansion Module
Description
The 725 24 VDC Zone Expansion Module allows you to increase the number of zones available on DMP panels by
providing four 24 VDC Class B Style A powered zones for the connection of 2-wire smoke detectors. Each zone is
supervised by a 6.8k Ohm End-of-Line resistor. The 725 interfaces to the panel using the 710F Bus Splitter/Repeater,
which allows the connection of a 24 VDC power source to power the smoke detectors and isolates the 24 Volt source
from the panel. Refer to the 710/710F Installation (LT-0310).
The 725 Zone Expansion Module can be installed on individual wire runs up to 2,500 feet, regardless of the gauge of
wire. Up to twenty-five 725 modules can be installed on the XR100/XR500 Series or XR2500F LX-Bus, and up to eight
725 Zone Expansion Modules can be installed on the Keypad bus. Refer to the panel Installation Guide for additional
information on connecting modules to the panel.
Installing the 725
The 725 easily installs into DMP enclosures using the standard 3-hole configuration. Follow the steps below to
properly mount the 725 in the enclosure:
1.Mount the three plastic standoffs to the enclosure using the three included Phillips head screws.
2.Insert the screws from the outside of the enclosure through the holes and into the plastic standoff which
mounts on the inside of the enclosure and tighten.
3.After securing the standoffs onto the enclosure, snap the 725 onto the standoffs.
If installing on an XR2500F, a 716 Output Expander is needed. If installing on an XR100/XR500 Series, install a Model
305 relay into K6. XR100/XR500 Series panels use a Model 431 6-wire Output Harness on J2. Use Output 1 on the
panel for the sensor reset function or use a 716 Output Expander. See Programming the Panel with a Model 305
Relay Installed.
Addressing the 725
ONES
9
0 1
7 8
7 8
0 1
9
2
address 102 on the
TENS
2
The 725 Zone Expansion Module has two rotary switches, labeled S1 (ONES) and S2
(TENS), that allow you to set the module address. To set the module
address,
use a
Example:
Rotary
small slotted screwdriver and turn the center arrow on each switch to the number
switches set to
that matches the correct address. See Figure 1.
3
4
5 6
3
Keypad Bus Installation
LX-Bus
or 2ison
the
When connecting to the keypad data bus, only the switch labeled
S1 (ONES)
used
keypad
Bus
for addressing. S2 (TENS) must be set to 0 (zero). For XR100/XR500 Series and
S1
S2
XR2500F panels the S2 (TENS) switch can be set to 0 or 1. S1 (ONES) must be set to a
starting address that communicates the four expansion module zone status.
Figure 1: Setting the Address
4
5 6
Because the 725 is a four Zone Expansion Module, addressing the 725 to 02, as shown in Figure 1, would make the
zone numbers 21, 22, 23, 24 on any panel. Setting the 725 address to 16 would enable zone numbers 161 to 164
when the 725 is connected to an XR500 Series or XR2500F keypad bus.
LX-Bus Installation
When connecting to an LX-Bus as shown in Figure 2, the two switches are set to match the last two digits of the
starting zone number. For example, setting the module to address 502 (TENS = 0, ONES = 2) makes the module zone
numbers 502, 503, 504, and 505 on an XR500 Series or XR2500F panel.
When using the 716 Output Expander Module to perform a sensor reset, address the 716 following the guidelines in
the 716 Installation Guide (LT-0183).
Zone numbers are determined by the device address. For example, if a 725 on an LX-Bus is addressed to 520, the
four zones are always zone numbers 520, 521, 522, and 523.
Wiring the 725
The 725 interfaces to the panel using the 710F Bus Splitter Repeater. The XR2500F also requires the use of a 716
Output Expander Module to perform the sensor reset. Refer to the wiring diagrams on the following pages for
illustrations on how to properly wire the 725 Zone Expansion Module.
Note: Use the four included listed 6.8k Ohm EOL resistors when specified.
Programming the XR2500F
After addressing both the 725 Zone Expansion Module and the 716 Output Expander, program the 725 and the 716 in
XR2500F programming accordingly. In panel Programming, scroll to SNSR RST: 0 in Output Options. Press any top
row Select key to clear 0. Enter the corresponding 716 output number reset the 725 after a device latches.
If you install the 725 on the keypad bus, scroll to Device Setup and assign the 725 a device number and select
STD. If you install the 725 on the LX-Bus, no additional programming is necessary. Also program the zones in ZONE
INFORMATION.
Zone Expansion Card:
481, 463G, 462N, 462P, 472
Note: The LX-Bus and Keypad
Bus circuits are Class B Style 3.5.
J6
Red
Black
J16
Command
Processor
Reset
Z7 GND Z8
4
16
19
22
6
7
8
9
S
S
S
10
11
12
13
14
15
17
18
20
S
Black
S2
AC TRBL
26
27
28
S
BLK GRN YEL RED
710F Bus
Splitter / Repeater
BATT TRBL
BLK GRN YEL RED BLK GRN YEL RED BLK GRN YEL RED
+ BAT -
1 Red
2 Yel
3 Grn
4 Blk
725 Zone
Expander
25
Red
NC
C
NO NC
C NO
Black
Red
LED
TENS ONES
Green
LED
S1
DC
24
+ DC DC -
24 VDC Power Supply
Regulated, Power Limited, and
Listed for Fire Protective Signaling
AC
23
Black
Green
Yellow
Red
S
To 24 VDC
battery
21
Gray (C)
5
716 Output
Expander
Z9+ Z9- Z10+ Z10-
Violet (N/C)
Z5 GND Z6
S2
3
Z3 GND Z4
ONES TENS
2
-B BELL GND RED YEL GRN BLK SMKGND Z1 GND Z2
5 Z1+
6 Z17 Z2+
8 Z29 Z3+
10 Z311 Z4+
12 Z4-
S
S
S
S
S
Yellow
Green
Power Limited
Black
6.8k Ohm
EOL Resistor
Alarm
Circuit
All circuits comply with the requirements for
inherent power limitation and are Class 2.
Smoke Detector
Alarm
Circuit
6.8k Ohm
EOL Resistor
S
S
S
S
Do NOT connect the RED
terminals to the
24 VDC Power Supply
Red
S
S
S
Yellow
1
+B
Green
AC AC
S1
XR2500F
Fire Alarm Control Panel
6.8k Ohm
EOL Resistor
Alarm
Circuit
Alarm
Circuit
Maximum line impedance is 100 Ohms
Z+ Ground fault detected at 650 Ohms or less
Z- Ground fault detected at 390 Ohms or less
6.8k Ohm
EOL Resistor
S = Supervised Circuit
Figure 2: Wiring the 725 Zone Expander to the XR2500F Fire Command Center
Digital Monitoring Products
2
725 Installation Guide
Programming the Panel with a Model 305 Relay Installed
If needed, refer to Figure 4 and Model 305 Relay Installation on the next page. After addressing the 725 and
installing a Model 305 relay into K6 on the panel, program Output 1 for Sensor Reset. In Programming, scroll to
Output Options. Then scroll to SNSR RST out: 0. Press any top row Select key to clear 0. Press 1 to program
Output 1 to reset the 725 after a device has latched. Program the zones in ZONE INFORMATION.
If the 725 is installed on the keypad bus, scroll to Device Setup and assign the 725 a device number and select STD.
When installing the 725 on the LX-Bus, no additional programming is necessary.
J3
XR100/XR500 Series
Command Processor™ Panel
J4
Note: The LX-Bus and Keypad
Bus circuits are Class B Style 3.5.
J6
J2
K6
7
6
9
8
10
S
11
12
13
14
15
16
19
17
18
21
20
Z9+ Z9- Z10+ Z10-
22
25
23
24
26
27
Black
Green
Yellow
Red
S
S
S
S
Black
+ DC DC S
Red
24 VDC Power Supply
Regulated, Power Limited, and
Listed for Fire Protective Signaling
Green
LED
BLK GRN YEL RED
710F Bus
Splitter / Repeater
To 24 VDC
Battery
BATT TRBL
AC TRBL
BLK GRN YEL RED BLK GRN YEL RED BLK GRN YEL RED
DC
AC
AC AC
Red + BAT LED
NC C
NO
NC C
NO
Black
TENS ONES
S2
S1
725 Zone Expander
1 Red
2 Yel
3 Grn
4 Blk
725 Zone
Expander
5 Z1+
6 Z17 Z2+
8 Z29 Z3+
10 Z311 Z4+
12 Z4-
S
S
S
S
S
S
S
28
Red
5
Violet
Z7 GND Z8
Yellow
4
Z5 GND Z6
Green
3
Z3 GND Z4
Red
Yellow
Green
Black
6.8k Ohm EOL
Resistor
Yellow
2
-B BELL GND RED YEL GRN BLK SMK GND Z1 GND Z2
Gray
Black
1
K7
J16
Command
Processor
Reset
Green
AC AC +B
Out1 Out2
Output 1 Wiring
J10
Do NOT connect the RED
terminals to the 24 VDC
Power Supply
Power Limited
Alarm
Circuit
Alarm
Circuit
All circuits comply with the requirements
for inherent power limitation and are Class 2.
S
S
S
S
S
6.8k Ohm EOL
Resistor
Alarm
Circuit
Alarm
Circuit
Maximum line impedance is 100 Ohms
Z+ Ground fault detected at 650 Ohms or less
Z- Ground fault detected at 390 Ohms or less
S = Supervised Circuit
Figure 3: Wiring the 725 Zone Expander to the XR100/XR500 Series Command Processor Panel
725 Installation Guide
Digital Monitoring Products
3
Model 305 Relay Installation
Install the enclosed Model 305 Relay into the K6 relay socket of the panel as
shown in Figure 4. Use the Model 305 relay when using Output 1 located on
Output Header J2.
Be sure that the relay orientation is correct. Notice the small notch at the
bottom of the relay socket. The side of the relay with the two pins should be on
the same side as the notch.
K6
Observe the
orientation
notch on the
relay socket.
Wiring Specifications for Keypad or LX-Bus
Figure 4: Relay Installation
Refer to the following LX-Bus and Keypad bus wiring 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. All 22‑gauge wire must be connected to a
power-limited circuit and jacket wrapped.
2. On keypad bus 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. To increase the wire length or to add devices,
install an additional power supply that is UL listed for Fire Protective Signaling, power limited, and regulated
(12 VDC nominal) with battery backup.
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.
3. Maximum distance for any one bus 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. Maximum number
of LX-Bus devices per 2,500 feet circuit is 40.
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’s Installation Guide, the LX-Bus/Keypad Bus Wiring Application Note
(LT-2031), and/or the 710/710F Installation Sheet (LT-0310).
Compliance Listing Specifications
UL Commercial Fire
The 725 Zone Expansion Module operates on 24 VDC power supplied by a 24 VDC Power Supply listed for Fire
Protective Signaling.
Current Draw
Operating Maximum
Operating Voltage
EOL Resistor
Panel Compatibility
8mA
+ 4mA per active zone
8mA
+ 4mA per active zone
+ 30mA per smoke in alarm
+ 48mA per shorted device
24 VDC
6.8k Ohm EOL resistor
XR100/XR500 Series and XR2500F Command Processor™ Panels
Accessories
710F Fire Bus Splitter/Repeater Module
2-wire smoke detectors (24 VDC)
Listings and Approvals
California State Fire Marshal (CSFM)
New York City (FDNY COA #6055)
Underwriters Laboratories (UL) Listed
ANSI/UL 864
Fire Protective Signaling
800-641-4282
INTRUSION • FIRE • ACCESS • NETWORKS
www.dmp.com
2500 North Partnership Boulevard
Made in the USA
Springfield, Missouri 65803-8877
8441
Specifications
LT-0266 1.01 © 2008 Digital Monitoring Products, Inc.
Heat detectors, 4-wire smoke detectors, manual pull stations and other fire initiating devices that do not require
compatibility listing by UL can be connected to the 725 Zone Expansion Module in most applications.
All fire device installations must be in accordance with the manufacturer’s instructions, NFPA standards, and the
requirements of the Authority Having Jurisdiction (AHJ).
See the panel installation guide for details for selecting compatible 2-wire smoke detectors.
The smoke detector compatibility identifier is B.