Secutron MR-2300 series User manual

Installation and Operation Manual LT-905SEC Rev. 3.3
January 2020
MR-2300 Series
LED Fire Alarm Control Panel

3
Table of Contents
1.0 Industry Canada and FCC Notice 9
1.1 Notice for all MR-2300 Series Built-In UDACTs Sold in Canada ................................... 9
1.2 Industry Canada Notice ................................................................................................. 9
2.0 Introduction 11
2.1 Overall Features ............................................................................................................ 11
3.0 Conventions 12
3.1 Circuits ........................................................................................................................... 12
3.2 Zone ............................................................................................................................... 12
3.3 Display Points ................................................................................................................ 12
3.4 Wiring Styles .................................................................................................................. 12
4.0 System Components 13
4.1 Main Fire Control Panel ................................................................................................. 13
4.2 Relay Module: 12 Relays ............................................................................................... 14
4.3 Relay Modules: Six Relays ............................................................................................ 14
4.4 Polarity reversal/city tie .................................................................................................. 15
4.5 Remote Annunciator ...................................................................................................... 15
4.6 Smart Relay Module ...................................................................................................... 15
4.7 Input Class A converter: Six Circuits .............................................................................. 16
4.8 Output Class A converter: four circuits .......................................................................... 16
4.9 Output Class A converter: two circuits ........................................................................... 16
4.10 Active end-of-line ........................................................................................................... 16
4.11 MR-2312-AT Remote Annunciator ................................................................................. 17
4.12 Additional Fire Alarm System Accessories .................................................................... 17
5.0 Mechanical Installation 18
5.1 Installing the Enclosure .................................................................................................. 18
5.2 MMX-BBX-1024DS and MMX-BBX-1024DSR Mechanical Installation ......................... 20
5.3 Installing the Adder Modules .......................................................................................... 21
6.0 Cable and Jumper Connections for Main Board and
Adder Modules 22
6.1 Main Fire Alarm Board ................................................................................................... 22

4
Table of Contents
6.2 MR-2300-A Input Class-A Converter Adder Module ...................................................... 23
6.3 MR-2300-NC4\NC2 Output Class A Converter Adder Module ...................................... 24
6.4 Relay Adder Modules (Models MR-2312-R12 and MR-2306-R6) .................................. 24
6.5 Polarity Reversal and City Tie Module (Model MR-2300-PR) ....................................... 26
7.0 Field wiring 28
7.1 Main Fire Alarm Board Field Wiring ............................................................................... 28
7.2 Relay Adder Module Wiring ........................................................................................... 32
7.3 Connecting to a 3G4010 Interface Device for Canada .................................................. 33
7.4 Connecting to a 3G4010CF Interface Device outside Canada ...................................... 34
7.5 Polarity Reversal and City Tie Module (MR-2300-PR) Wiring ....................................... 35
7.6 Power supply connection ............................................................................................... 36
7.7 Wiring Tables and Information ....................................................................................... 37
7.8 Four-Wire Smoke Power ................................................................................................ 38
7.9 Supervised Auxiliary Power ........................................................................................... 38
7.10 Auxiliary Power .............................................................................................................. 38
8.0 Turning on the Panel 39
8.1 Before Connecting the Power ........................................................................................ 39
8.2 Power-up procedure ....................................................................................................... 39
8.3 Troubleshooting ............................................................................................................. 41
9.0 Indicators, Controls and Operations 42
9.1 Common Indicators ........................................................................................................ 43
9.3 Common Controls .......................................................................................................... 48
9.4 Circuit (zone) disconnect buttons ................................................................................... 50
9.5 Common Relays ............................................................................................................. 50
9.6 Circuit Types .................................................................................................................. 51
9.7 Evacuation codes ........................................................................................................... 53
9.8 Single Stage Operation .................................................................................................. 54
9.9 Two-stage Operation ...................................................................................................... 55
10.0 Supported Protocols/Devices 57
10.1 Synchronous Strobes ..................................................................................................... 57
10.2 System Sensor’s i3 Devices ........................................................................................... 57
11.0 Configuration and CFG-300 LCD Service Tool 60
11.2 Command Menu ............................................................................................................. 62
11.3 1. MR-2300 CONFIG (Command-Menu) ....................................................................... 63

5
Table of Contents
11.4 2. Config Info (Command-Menu ..................................................................................... 72
11.5 3. Set Time (Command-Menu) ...................................................................................... 74
11.6 4. Change password (Command-Menu) ........................................................................ 75
11.7 5. View Event Log (Command-Menu) ............................................................................ 76
11.8 6. Clear Event Log (Command-Menu) ........................................................................... 76
11.9 7. Walk Test (Command-Menu) ..................................................................................... 77
11.10 8. i3 Loop Test (Command-Menu) ................................................................................. 78
11.11 9. Dialer Config (Command-Menu) ................................................................................ 80
11.12 10. Test Dialer (Command-Menu) ................................................................................. 87
11.13 11. Exit (Command-Menu) ............................................................................................. 88
11.14 CFG-300 LCD Service tool operation ............................................................................ 88
11.15 Battery trouble ................................................................................................................ 90
11.16 Ground Fault .................................................................................................................. 91
11.17 Remote Annunciator ...................................................................................................... 91
11.18 Four-wire smoke detector supply ................................................................................... 91
11.19 Supervised Aux. supply ................................................................................................. 92
11.20 City tie Polarity reversal - MR-2300-PR/ Relay module ................................................. 92
12.0 Appendix A: Compatible Receivers 94
13.0 Appendix B: Reporting 95
13.1 Ademco Contact-ID ........................................................................................................ 95
13.2 Security Industries Association SIA-DCS ...................................................................... 96
14.0 Appendix C: Specifications 97
15.0 Appendix D: Power Supply and Battery Calculations 100
16.0 Appendix E: Auxiliary Devices 101
17.0 Warranty and Warning Information 102

6
List of Figures
Figure 1 Box dimensions, surface mount ..................................................................................... 18
Figure 2 Box dimensions, semi-flush mounting and trim ring ....................................................... 19
Figure 3 Flush Trim Detail ............................................................................................................ 19
Figure 4 MMX-BBX-1024DS and MMX-BBX-1024DSR Installation Instructions and Dimensions 20
Figure 5 Installation of Adder Modules ......................................................................................... 21
Figure 6 Main Fire Alarm Board cable connector and jumper settings ........................................ 22
Figure 7 MR-2300-A Input Class-A Converter Adder Module ...................................................... 23
Figure 8 MR-2300-NC4/NC2 Output Class A Converter Adder Module ...................................... 24
Figure 9 MR-2312-R12 twelve relay adder module ...................................................................... 25
Figure 10 MR-2312-R12/2306-R6 Relay programming ................................................................. 25
Figure 11 MR-2306-R6 six relay adder module ............................................................................. 26
Figure 12 Polarity reversal and city tie module .............................................................................. 26
Figure 13 Initiating circuit – Class B or Style B wiring .................................................................... 28
Figure 14 Initiating circuit– Class A or Style D wiring ..................................................................... 29
Figure 15 Indicating circuit – Class B or Style Y wiring .................................................................. 30
Figure 16 Indicating circuit –Class A or Style Z wiring ................................................................... 30
Figure 17 Four-wire smoke detector wiring .................................................................................... 31
Figure 18 Dialer wiring ................................................................................................................... 31
Figure 19 Relay per zone (MR-2312-R12) Terminal connection .................................................... 32
Figure 20 Relay per zone (MR-2306-R6) Terminal connection ...................................................... 32
Figure 21 Connecting an MR-2300 FACP to a 3G4010 Interface Device ..................................... 33
Figure 22 Connecting an MR-2300 FACP to a 3G4010CF Interface Device outside Canada ...... 34
Figure 23 Polarity reversal and city tie module terminal connection .............................................. 35
Figure 24 Power supply connection ............................................................................................... 36
Figure 25 Battery Connections ....................................................................................................... 40
Figure 26 LED indicators and control buttons ................................................................................ 42
Figure 27 Alarm Circuit Indicator .................................................................................................... 45
Figure 28 Lamp Test ...................................................................................................................... 49
Figure 29 Evacuation and Alert Codes ........................................................................................... 54
Figure 30 MR-2300 Configuration .................................................................................................. 61
Figure 31 Enter passcode .............................................................................................................. 62
Figure 32 Command menu ............................................................................................................. 62
Figure 33 Feature Config menu ..................................................................................................... 63
Figure 34 The event log ................................................................................................................. 76
Figure 35 Select Log ...................................................................................................................... 76
Figure 36 Clear all the selected logs .............................................................................................. 76
Figure 37 Logs cleared ................................................................................................................... 77
Figure 38 Walk test confirmation .................................................................................................... 77
Figure 39 Walk test zones .............................................................................................................. 77
Figure 40 Walk test active .............................................................................................................. 77
Figure 41 i3 loop test confirmation ................................................................................................. 78
Figure 42 i3 test zones ................................................................................................................... 78
Figure 43 i3 loop test not ready ...................................................................................................... 79

7
List of Figures
Figure 44 The selected zone is not i3 type .................................................................................... 79
Figure 45 Dialer Config menu ........................................................................................................ 80
Figure 46 Detection circuit zone message ..................................................................................... 89
Figure 47 Indicating circuit zone message ..................................................................................... 89
Figure 48 AC Power Fail ................................................................................................................ 90
Figure 49 Battery Trouble .............................................................................................................. 90
Figure 50 Ground Fault .................................................................................................................. 91
Figure 51 Remote annunciator mismatch trouble .......................................................................... 91
Figure 52 Four-wire Power Supply ................................................................................................. 92
Figure 53 Aux. Power Supply ......................................................................................................... 92
Figure 54 City Tie module missing ................................................................................................. 93
Figure 55 City Tie trouble ............................................................................................................... 93

8
List of Tables
Table 1 Initiating Circuit Wiring ................................................................................................... 37
Table 2 Indicating Circuit Wiring ................................................................................................. 37
Table 3 RS-485 Wiring to Annunciators and other Devices ........................................................ 38
Table 4 Alarm Circuit Indicators .................................................................................................. 46
Table 5 Supervisory Circuit Indicators ........................................................................................ 46
Table 6 Property and Building Safety Circuit Indicators .............................................................. 47
Table 7 Trouble-Only Circuit Indicators ....................................................................................... 47
Table 8 Signal Circuit Indicators ................................................................................................. 48
Table 9 i3 Smoke Detector LEDs ................................................................................................ 59
Table 10 Settings permitted in CAN/ULCS527 ............................................................................. 60
Table 11 Settings permitted in UL864 ........................................................................................... 60
Table 12 Feature Config Menu ..................................................................................................... 64
Table 13 i3 Detector Statuses ....................................................................................................... 79
Table 14 MR-2300 LED Series Specifications .............................................................................. 97
Table 15 MR-2300 LED System Modules and Annunciators ........................................................ 98

9
1.0 Industry Canada and FCC Notice
1.1 Notice for all MR-2300 Series Built-In UDACTs Sold in Canada
Secutron's MR-2300 SERIES BUILT-IN UDACT Communicator described in this manual is
listed by Underwriters Laboratories Canada (ULC) for use in slave application in conjunction
with a Listed Fire Alarm Control Panel under Standard ULC-S527-11 (Standard for Control
Units for Fire Alarm Systems) and CAN/ULC-S561-13 (Standard for Installation and Services
for Fire Signal Receiving Centres and Systems). These Communicators should be installed in
accordance with this manual; the Canadian / Provincial / Local Electrical Code; and/or the
local Authority Having Jurisdiction (AHJ).
1.2 Industry Canada Notice
Repairs to certified equipment should be made by an authorized Canadian maintenance
facility designated by the supplier. Any repairs or alteration made by the user to this
equipment, or equipment malfunctions, may give the telecommunications company cause to
request the user to disconnect the equipment. Users should ensure for their own protection
that the Earth Ground connections of the power utility, telephone lines and internal metallic
water pipe system, if present, are connected together. This is necessary both for proper
operation and for protection.
Notice for all MR-2300 Series Built-in UDACTs Sold in the U.S.A.
Secutron's MR-2300 SERIES BUILT-IN UDACT Digital Communicator described in this
manual is listed by Underwriters Laboratories Inc. (ULI) for use in slave application in
conjunction with a Listed Fire Alarm Control Panel under Standard 864 (Control Units for Fire
Protective Signalling Systems). These Communicators comply with the National Fire
Protection Association (NFPA) performance requirements for DACTs and should be installed
in accordance with NFPA 72 Chapter 4 (Supervising Station Fire Alarm System). These
Communicators should be installed in accordance with this manual; the National Electrical
Code (NFPA 70); and/or the local Authority Having Jurisdiction (AHJ).
Caution: Users should not attempt to make such connections themselves, but
should contact the appropriate electric inspection authority, or
electrician, as appropriate.
Note: The Ringer Equivalence Number (REN) assigned to each terminal device
provides an indication of the maximum number of terminals allowed to be
connected to a telephone interface. The termination on an interface may consist
of any combination of devices subject only to the requirement that the sum of the
Ringer Equivalence Numbers of all the devices does not exceed 5.
The REN for this product is part of the product identifier that has the format
US:AAAEQ##TXXXX. The digits represented by ## are the REN without a
decimal point (e.g., 03 is a REN of 0.3). For earlier products, the REN is
separately shown on the label.
!
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10
Industry Canada and FCC Notice
1.2.1 FCC Notice
This equipment complies with Part 68 of the FCC rules and the requirements adopted by the
ACTA. On the telco transformer of this equipment is a label that contains, among other
information, a product identifier in the format US:AAAEQ##TXXXX. If requested, this number
must be provided to the telephone company. This equipment is capable of seizing the line.
This capability is provided in the hardware.
Type of Service: The Communicator is designed to be used on standard device telephone
lines. It connects to the telephone line by means of a standard jack called the USOC RJ-11C
(or USOC FJ45S). Connection to telephone company provided coin service (central office
implemented systems) is prohibited. Connection to party lines service is subject to state tariffs.
Telephone Company Procedures: The goal of the telephone company is to provide you with
the best service it can. In order to do this, it may occasionally be necessary for them to make
changes in their equipment, operations or procedures. If these changes might affect your
service or the operation of your equipment, the telephone company will give you notice, in
writing, to allow you to make any changes necessary to maintain uninterrupted service.
In certain circumstances, it may be necessary for the telephone company to request
information from you concerning the equipment which you have connected to your telephone
line. Upon request of the telephone company, provide the FCC registration number and the
ringer equivalence number (REN); both of these items are listed on the equipment label. The
sum of all of the REN’s on your telephone lines should be less than five in order to assure
proper service from the telephone company. In some cases, a sum of five may not be usable
on a given line.
If Problems Arise: If any of your telephone equipment is not operating properly, you should
immediately remove it from your telephone line, as it may cause harm to the telephone
network. If the telephone company notes a problem, they may temporarily discontinue service.
When practical, they will notify you in advance of this disconnection. If advance notice is not
feasible, you will be notified as soon as possible. When you are notified, you will be given the
opportunity to correct the problem and informed of your right to file a complaint with the FCC.
Contact your telephone company if you have any questions about your phone line. In the
event repairs are ever needed on the Communicator, they should be performed by Secutron
Inc. or an authorized representative of Secutron Inc. For information contact Secutron Inc. at
the address and phone numbers shown on the back page of this document.

11
2.0 Introduction
Secutron's MR-2300 Series Fire Alarm Control Panel is a Digital Signal Processor (DSP)-
based fire panel. The MR-2300 provides a maximum of 12 supervised Class B or A (Style B or
D) Initiating circuits, and maximum four supervised Class B or A (Style Y or Z) indicating
circuits. All circuits are supervised for opens and ground faults, and indicating circuits are
supervised for shorts. Optional modules include Relay, Polarity Reversal and City Tie and
Class A Converters for initiating and indicating circuits. Semi-flush or surface mountable
enclosures can be used for retrofits and on new installations.
2.1 Overall Features
• Basic unit has 12 Class B (Style B) initiating circuits, which may be configured as Class
A (Style D) using input Class A converter adder modules. Each initiating circuit can be
configured as Alarm, Verified Alarm, Water flow Alarm, Sprinkler Alarm, Latching or
Non-Latching Supervisory, Property and Building Safety or Trouble-Only circuits. There
are two LEDs per circuit, one for Trouble (amber), and one dual color (amber/red) LED
for Supervisory (amber) and Alarm (red).
• Basic unit has four Power Limited Class B (Style Y) indicating circuits with individual
trouble indicators. Each indicating circuit may be configured as Class A (Style Z) using
output Class A converter adder module. Each indicating circuit may be configured as
Silenceable signal, non Silenceable signal, Silenceable strobe, non Silenceable strobe.
The audible signal may be Steady, Temporal Code, California Code, or March Time.
• Two Stage operation available.
• A pushbutton associated with each initiating and indicating circuit can individually
disconnect the circuit.
• Configurable Signal Silence Inhibit, Auto Signal Silence, Two-Stage Operation, and
One-Man Walk Test. For UL installations, disable the auto signal silence timer.
• Subsequent Alarm, Supervisory, and Trouble operation.
• Four-wire resettable smoke power supply 300mA maximum.
• Relay Contacts for Common Alarm, Common Supervisory and Common Trouble all
non-disconnectable and Auxiliary Alarm Relay (disconnectable).
• RS-485 Interface for LCD Annunciators, MR-2300 Series Remote Multiplex
Annunciators and Smart relay adder.
• Optional Modules for additional Relay Circuits, City Tie and Polarity Reversal Signaling.
• Extensive transient protection.
• With or without built-in UDACT (Digital Alarm Communicator Transmitter.)
• Easy configuration of the panel and built-in UDACT using LCD service tool (CFG-300.)
• Remote dial up (with built-in UDACT version) for event log checking and/or configuration
changing.
• Laptop programmer for direct configuration changing and log checking.
Note: Installation of the MR-2300 series fire alarm control panel should be in
accordance with Canadian Electrical Code Part 1, ULC-S524 installation of Fire
Alarm System, National Electrical Code NFPA 70 and NFPA 72. Final
acceptance subject to the Local Authority Having Jurisdiction (AHJ).
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12
3.0 Conventions
3.1 Circuits
Refers to an actual electrical interface for Initiating (Detection) and Indicating (Signal) or
Relays.
3.2 Zone
Is a logical concept for a Fire Alarm Protected Area, and will consist of at least one Circuit.
Often the terms Zone and Circuit are used interchangeably, but in this Manual the term Circuit
is used.
3.3 Display Points
There is a display point associated with every initiating and indicating circuit of the MR-2300
LED Series fire panel. For an initiating circuit there are two LEDs for every display point: one
single color (amber) and one dual color (red/amber). For an indicating circuit there is only one
LED: one single color (amber), for every display point.
3.4 Wiring Styles
Initiating and indicating circuits are Class B (Style B and Y). Changing the initiating circuits to
Class A requires an MR-2300-A adder board which will convert SIX initiating zones from Class
B (Style B) circuits to Class A (Style D). This is done without penalizing the number of circuits,
which remains the same as in Class B (Style B). Changing the indicating circuits to Class A
requires an MR-2300-NC4 adder board which will convert FOUR indicating zones from Class
B (Style Y) circuits to Class A (Style Z) or an MR-2300-NC2 adder board which will convert
TWO indicating zones from Class B (Style Y) circuits to Class A (Style Z).

13
4.0 System Components
4.1 Main Fire Control Panel
Model Description
MR-2312-LDW
12 Zone Fire Alarm Control Panel with LED
display (white door, black box). 12 Class B
(Style B) Initiating circuits, and four Power
Limited Class B (Style Y) Indicating circuits (up
to 1.70 amperes each, 5 amperes total). Two six
zone MR-2300-A Input Class A Converter
adder modules may be used for Class A (Style
D) wiring of Initiating circuits. One MR-2300-
NC4 Output Class A Converter adder module
may be used for Class A (Style Z) wiring of the
Indicating circuits. The MR-2312-LDW contains
Common Alarm, Common Supervisory &
Common Trouble Relays, auxiliary alarm relay
(disconnectable), an RS-485 Interface for
Remote Annunciators and a Resettable Four
Wire Smoke Detector Power Supply. The unit
has a dialer on main board. Used with Mircom
BAT-12V12A (12 amp-hour) batteries (two
required).
MR-2312-LDR
12 Zone Fire Alarm Control Panel with LED
display (red door, black box). 12 Class B
(Style B) Initiating circuits, and four Power
Limited Class B (Style Y) Indicating circuits
(up to1.70 amperes each, 5 amperes total).
Two six zone MR-2300-A Input Class A
converter adder modules may be used for
Class A (Style D) wiring of Initiating circuits.
One MR-2300-NC4 Output Class A
Converter adder module may be used for
Class A (Style Z) wiring of the Indicating
circuits. The MR-2312-LDR contains Common
Alarm, Common Supervisory & Common
Trouble Relays, auxiliary alarm relay
(disconnectable), an RS-485 Interface for
Remote Annunciators and a Resettable Four
Wire Smoke Detector Power Supply. The unit
has a dialer on main board. Used with Mircom
BAT-12V12A (12 amp-hour) batteries (two
required).
MR-2312-LW
12 Zone Fire Alarm with LED display (white
door, black box). Same as MR-2312-LDW
except without dialer.
MR-2312-LR
12 Zone Fire Alarm with LED display (red door,
black box). Same as MR-2312-LDR except
without dialer.

14
System Components
4.2 Relay Module: 12 Relays
4.3 Relay Modules: Six Relays
MR-2308-LDW
8 Zone Fire Alarm Control Panel with LED
display (white door, black box). 8 Class B
(Style B) Initiating circuits, and four Power
Limited Class B (Style Y) Indicating circuits
(up to1.70 amperes each, 5 amperes total).
Two six zone MR-2300-A Input Class A
converter adder modules may be used for
Class A (Style D) wiring of Initiating circuits.
One MR-2300-NC4 Output Class A
Converter adder module may be used for
Class A (Style Z) wiring of the Indicating
circuits. The MR-2308-LDW contains Common
Alarm, Common Supervisory & Common
Trouble Relays, auxiliary alarm relay
(disconnectable), an RS-485 Interface for
Remote Annunciators and a Resettable Four
Wire Smoke Detector Power Supply. The unit
has a dialer on main board. Used with Mircom
BAT-12V12A (12 amp-hour) batteries (two
required).
MR-2308-LW
8 Zone Fire Alarm with LED display (white door,
black box). Same as MR-2308-LDW except
without dialer.
Model Description
MR-2312-R12 Twelve-relay adder module
Model Description
MR-2306-R6 Six-relay adder module
NO/NC C
RELAY 1
NO/NC C
RELAY 2
NO/NC C
RELAY 3
NO/NC C
RELAY 4
C
RELAY 5
NO/NC C
RELAY 6
NO/NC C
RELA Y 7
NO/NC C
RELAY 8
C
RELAY 9
NO/NC C
RELAY 10
NO/NC C
RELAY 11
NO/NC C
RELAY 12
NO/NC NO/NC
NO/NC C
RELAY 1
NO/NC C
RELAY 2
NO/NC C
RELAY 3
NO/NC C
RELAY 4
C
RELAY 5
NO/NC C
RELAY 6
NO/NC

15
System Components
4.4 Polarity reversal/city tie
4.5 Remote Annunciator
4.6 Smart Relay Module
Model Description
MR-2300-PR Polarity Reversal and/or City
tie Module
Model Description
MR-2300-LCDW
Remote Annunciator
module, LCD display,
white painted box
MR-2300-LCDR
Remote Annunciator
Module, LCD display, red
painted box
Model Description
MR-2312-SR12/
MR-2312-SW12
Smart Relay Module (12
relays) with red or white
enclosure
POLARITY
REVERSAL
ALARM
POLARITY
REVERSAL
SUPV
CITY
TIE
+ | - + | - + | -
JW4
P1 P2
Mounting hole for
#6-32 screws
Mounting hole for
#6-32 screws
MR-2300 SERIES Remote Annunciator
SYSTEM
RES ET
SIGNAL
SILENCE
FI R E
DRI LL
BUZZER
SILENCE
LAMP
TEST
1
4
7
*
2
5
8
0
3
6
9
#
ENTER
ME NU
CANCEL
INFO
ABC DEF
GHI JKL MNO
PRS TUV WXY
QZ
A.C. ON ALARM SUP V TRBL CPU FAIL
SYSTEM NORMAL
18:01 MON 2003-04-05
MR-2300 SERIES REMOTE RELAY

16
System Components
4.7 Input Class A converter: Six Circuits
4.8 Output Class A converter: four circuits
4.9 Output Class A converter: two circuits
4.10 Active end-of-line
The MR-2300-X are power-saving End-of-Line resistors that eliminate the need for an
additional battery cabinet or larger batteries in order to meet the 60 hour standby requirement.
Model Description
MR-2300-A
Input Class A converter Module (six
circuits). This module has built in
Active End-of-Line resistors.
Model Description
MR-2300-NC4 Output Class A converter module (four
circuits)
Model Description
MR-2300-NC2 Output Class A converter module (two
circuits)
Model Description
MR-2300-X Active end-of-line resistor without plate
MR-2300-XR Active end-of-line resistor with end-of-
line red plate
BLK RED
BLK REDBLK REDBLK REDBLK REDBLK RED
- DET1 OUT+- DET2 OUT+- DET3 OUT+- DET4 OUT+- DET5 OUT+- DET6 OUT+
- DET1 RET+- DET2 RET+- DET3 RET+- DET4 RET+- DET5 RET+- DET6 RET+
- SIG1 OUT+- SIG2 OUT+
- SIG1 RET+- SIG2 RET+
BLK RED
BLK RED
- SIG3 OUT+- SIG4 OUT+
- SIG3 RET+- SIG4 RET+
BLK RED
BLK RED
- SIG1 OUT+- SIG 2 OUT+
- SIG1 RET+- SIG 2 RET+
BLK RED
BLK RED
BLACK
RED

17
System Components
4.11 MR-2312-AT Remote Annunciator
4.12 Additional Fire Alarm System Accessories
Model Description
MR-2312-ATW/
MR-2312-ATR 16 Zone remote annunciator
MR-2306-ATW/R Eight Zone Remote Annunciator ULC and ULI Approved
MR-2605-T Remote Trouble Indicator ULC and ULI Approved
A.C.
ON
COMMON
TROUBLE
SIGNA L
SILEBCE
BUZZER
SILENCE
SIGNA L
SILENCE
LAMP
TEST
SYSTEM
RESET
SWITCH
ENABL E
FIRE ALARM
ANNUNCIATOR

18
5.0 Mechanical Installation
5.1 Installing the Enclosure
Install the MR-2300 Series Fire Alarm Panel enclosure as shown below for the twelve and
eight-zone models. Mount enclosure surface mount using the four mounting holes, as shown
and the screws provided.
Figure 1 Box dimensions, surface mount
The backbox may be semi-flush mounted using the trim ring model MR-2312-FT (BLACK),
see Figure 3. Remove the door (also disconnect the ground strap), the dead front and semi-
11"
14.5"
1.5"
20.5"
5.4"
4.5"
25.9"
Mounting Hole
Mounting Hole
Mounting Hole
Mounting Hole

19
Mechanical Installation
flush mount the backbox into the wall. Peel the adhesive cover from the trim ring and stick to
the wall surface around the backbox, after wall is finished.
Figure 2 Box dimensions, semi-flush mounting and trim ring
Figure 3 Flush Trim Detail
The figure below shows a cross-section of the semi-flush mounted backbox and the trim ring. Make sure
to allow a minimum depth of 1” above the wall surface for proper door opening.
Adhere trim ring to wall
surface around
MR-2300 backbox.
PLACE MR-2312-FT TRIM RING OVER BACKBOX
TRIM RING
WALL
WOOD OR
METAL STUD
BACKBOX

20
Mechanical Installation
5.2 MMX-BBX-1024DS and MMX-BBX-1024DSR Mechanical
Installation
The MMX-BBX-1024DS and MMX-BBX-1024DSR are suitable for flush or surface mounting,
and have a built-in trim ring.
Figure 4 MMX-BBX-1024DS and MMX-BBX-1024DSR Installation Instructions and
Dimensions
Dimensions of Enclosure (minus built in trim ring) 14.5” x 4.2” x 26”
Distance between horizontal mounting screws 12”
Distance between vertical mounting screws 23.5”
Complete Dimensions of Enclosures 16.3” x 5.5” x 27.5”
12.0 "
23.5 "
Mounting Dimensions
26.0 "
14.5 "
4.2 "
External Dimensions
2.1 "
1.3 " 6.0 "
9.5 "
Side View
1.3 " 1.7 "
2.0 "
Top View