FireClass DUO-CEL User guide

EQUIPMENT: FIRECLASS DUO-CEL
PUBLICATION: OM_FC_DUO-CEL_APP
ISSUE No. & DATE: 2 20/06/18
PAGE 1 of 46
© 2018 Johnson Controls.
Tyco Fire & Security GmbH, Victor von Bruns-Strasse 21, 8212 Neuhausen
am Rheinfall, Switzerland
DUO-CEL
FIRE DETECTION/ALARM PANEL
Application Guide

EQUIPMENT: FIRECLASS DUO-CEL
PUBLICATION: OM_DUO-CEL_APP
ISSUE No. & DATE: 2 20/06/18
PAGE 2 of 46
List of Contents
1. INTRODUCTION......................................................4
2. GENERAL DESCRIPTION.........................................4
2.1 CABINET SPECIFICATIONS ...........................4
2.1.1 Panel Order Codes & Descriptions........5
2.1.2 Replacement PCB Order Codes and
Descriptions .......................................6
2.1.3 Optional Language Display Overlays ....6
2.2 FIRE DETECTION AND ALARM PANEL
DESCRIPTION..............................................7
2.2.1 DUO-CEL control board.........................7
2.2.2 Display overlay and insert......................7
2.2.3 Power Supply.........................................8
2.2.4 Repeater Panel......................................8
3. FUNCTIONAL SPECIFICATION .................................8
3.1 PANEL INPUT/OUTPUT LIST .........................8
3.2 FEATURES LIST...........................................9
4. DUO-CEL PANEL –CONTROL BOARD FEATURES11
5. DUO-CEL REPEATER –CONTROL BOARD
FEATURES........................................................12
6. POWER SUPPLY..................................................13
6.1 GENERAL..................................................13
6.1.1 Supply Input.........................................13
6.1.2 Supply Output ......................................13
6.1.3 Battery Charger....................................13
6.1.4 Battery Monitoring................................13
6.1.5 Visual indications.................................14
6.1.6 Fault Conditions...................................14
6.2 MECHANICAL PROTECTION........................14
6.2.1 DUO-CEL Power Supply Features and
Connections .....................................14
7. COMPATIBLE FIELD DEVICES...............................15
7.1 FIELD DEVICE PART NUMBERS ..................15
8. OVERVIEW OF USER FUNCTIONS .........................18
8.1 USER INDICATIONS....................................18
8.2 USER CONTROLS......................................19
8.3 SELECTION OF ZONES OR OUTPUTS FOR
DISABLEMENT,ENABLEMENT OR TEST .......20
8.4 DISABLED ZONES AND OUTPUTS................20
8.5 DETECTOR ZONE TEST..............................20
8.6 ALARM SOUNDER ONE MAN TEST..............20
9. OVERVIEW OF ENGINEERS FUNCTIONS.................21
9.1 ENGINEER’S CONFIGURATION PROCESS .....21
9.1.1 Zone Dependency selection ................21
9.1.2 Repeater configuration.........................21
9.2 ZONE 1NON-LATCH OPERATION ................22
9.3 RESISTOR EOL.........................................22
9.4 TWIN WIRE...............................................22
9.5 ALERT MODE............................................22
9.6 SELECTABLE ZONAL OR GENERAL ALARM
SOUNDER OPERATION...............................23
9.7 BUZZER DISABLE ......................................23
9.8 EARTH FAULT MONITORING........................23
10. PANEL REPEATERS...........................................23
10.1 REPEATER USER INDICATIONS...................24
10.2 REPEATER USER CONTROLS.....................25
11. CIRCUIT CONNECTION DETAILS..........................26
11.1 DUO-CEL PANEL MOTHERBOARD
TERMINATION DETAILS..............................26
11.2 DUO-CEL REPEATER MOTHERBOARD
TERMINATION DETAILS..............................27
11.3 AUXILIARY SUPPLY ................................... 27
11.4 FIRE SIGNAL OUTPUT ............................... 27
11.5 FIRE RELAY OUTPUT ................................ 27
11.6 FAULT RELAY OUTPUT.............................. 27
11.7 REMOTE CONTROL INPUT ......................... 28
11.7.1 Class Change.................................... 28
11.7.2 Alert ................................................... 28
11.7.3 Evacuate............................................ 28
11.7.4 Silence Alarms................................... 28
11.7.5 Reset ................................................. 28
11.8 OPEN COLLECTOR OUTPUTS..................... 28
11.8.1 Disabled Output................................. 29
11.8.2 Evacuate Output................................ 29
11.8.3 Buzzer Active Output......................... 29
11.9 SOUNDER CIRCUITS.................................. 29
11.10 ELECTRICAL DESIGN OF DETECTION ZONES29
11.10.1 Standard Panel Default Zone
Configuration ................................... 29
11.10.2 Standard Panel Resistor Zone
Configuration ................................... 29
11.10.3 Twin-Wire Panel.............................. 29
11.10.4 Maximum Number of Detectors/MCPs
on a Zone......................................... 30
11.11 PANEL TO REPEATER WIRING.................... 33
12. MECHANICAL &ELECTRICAL SPECIFICATION ..... 34
13. ENVIRONMENTAL SPECIFICATION....................... 35
14. DUO-CEL INPUT AND OUTPUT SPECIFICATION.. 36
15. APPENDIX......................................................... 39
15.1 EN54 MANDATORY FUNCTIONS ................ 39
15.2 EN54 OPTIONAL FUNCTIONS WITH
REQUIREMENTS........................................ 39
15.3 ANCILLARY FUNCTIONS NOT REQUIRED BY
EN54....................................................... 39
15.4 SAFE STATE............................................. 39
15.5 POWER SUPPLY LOAD CALCULATION......... 40
15.6 MINIMUM STANDBY BATTERY CAPACITY
CALCULATION........................................... 40
15.6.1 Standby Battery Capacity Calculation
Worksheet........................................ 42
15.7 A1466 INTERFACE RELAY......................... 43
15.8 PANEL CONFIGURATION DESIGN CHART.... 44
16. GENERAL ASSEMBLY DRAWING ........................ 45

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ISSUE No. & DATE: 2 20/06/18
PAGE 3 of 46
List of Figures
FIGURE 1–PANEL/REPEATER ENCLOSURE EXTERNAL
VIEW....................................................... 5
FIGURE 2–DUO-CEL 8ZONE PANEL –EXPLODED
VIEW....................................................... 7
FIGURE 3–PANEL CONTROL BOARD AND PCB COVER
............................................................ 11
FIGURE 4–REPEATER CONTROL BOARD AND PCB
COVER.................................................. 12
FIGURE 5–BAQ35T24 1.5A POWER SUPPLY LAYOUT
............................................................ 14
FIGURE 6–DUO-CEL PANEL FIELD TERMINATIONS . 26
FIGURE 7–DUO-CEL REPEATER FIELD TERMINATIONS
............................................................ 27
FIGURE 8–FIRE SIGNAL OUTPUT CONNECTIONS..... 27
FIGURE 9–RELAY CONTACT CONNECTION DETAILS.. 27
FIGURE 10 –REMOTE CONTROL I/P CONNECTIONS.. 28
FIGURE 11 –ALARM CIRCUIT CONFIGURATION.......... 29
FIGURE 12 –TWIN-WIRE EOL DEVICE..................... 30
FIGURE 13 –STANDARD ZONE WIRING DIAGRAM..... 30
FIGURE 14 –RESISTOR EOL ZONE WIRING DIAGRAM
............................................................ 31
FIGURE 15 –TWIN-WIRE ZONE WIRING DIAGRAM .... 31
FIGURE 16 –ALARM CIRCUIT WIRING DIAGRAM ....... 32
FIGURE 17 –REMOTE INDICATORS WIRING DIAGRAM32
FIGURE 18 –REPEATER WIRING DIAGRAM............... 33
FIGURE 19 –A1466 INTERFACE RELAY SPECIFICATION
............................................................ 43
List of Tables
TABLE 1–PANEL INPUT/OUPUT LIST..........................8
TABLE 2–FLOAT CHARGE VOLTAGES FOR
POWERSONIC VRLA BATTERIES .............13
TABLE 3–DUO-CEL PANEL DIL SWITCH
CONFIGURATION DESIGN/RECORD..........44
TABLE 4–ZONE DEPENDENCY CONFIGURATION
DESIGN/RECORD ...................................44

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PUBLICATION: OM_DUO-CEL_APP
ISSUE No. & DATE: 2 20/06/18
PAGE 4 of 46
1. Introduction
This document contains technical information
necessary for application design using the
FIRECLASS DUO-CEL Conventional Fire Detection
control panel.
The following supporting documentation is also
available:
FIRECLASS DUO-CELSales Literature
FIRECLASS DUO-CELUser Manual
FIRECLASS DUO-CEL Installation and
Commissioning Manual.
FIRECLASS DUO-CELLog Book.
Note: References are made throughout this
document to “Fire Signal Output” and “Fire Relay
Output”. These refer to particular outputs from the
panel and are provided for specific purposes:
Fire Relay Output: An output used to activate
ancillary fire protection equipment or systems.
For example, fire doors or plant shutdown.
Fire Signal Output: An output used to send a
common fire warning signal to a remote fire
monitoring station.
Detailed descriptions of both outputs are provided
within the following text.
The panel is currently available as a standard
conventional panel, with a twin-wire version soon to
be released. This document describes features
available for both types of panel.
2. General Description
The FIRECLASS DUO-CEL Panel range is fully
compliant with the mandatory requirements and
selected optional requirements of EN54 parts 2 and
4.
The FIRECLASS DUO-CEL equipment range
consists of the following:
Standard Panels:
1, 2, 4 and 8 zone versions.
Twin-Wire Panels:
1, 2, 4 and 8 zone versions.
Repeater:
8 zone 24Vdc & 230Vac versions.
Each panel in the range is housed in an
Acrylonitrile Butadiene Styrene (ABS) Plastic
enclosure with a combined display & control board
mounted to the back box. An ABS cover is fixed
over the display/control board, leaving the field
terminals, configuration switches, links and user
controls easily accessible.
The front cover of the enclosure clips onto the back
box and is fixed by one screw on the top and two
screws on the bottom.
The PCB cover is fitted with a polyester overlay
providing user controls and indications. All display
text is printed on the overlay, with an insert for the
zone location text that slides into a pocket in the
overlay.
User controls are locked & unlocked via a plastic
key which is inserted through a keyhole in the cover
and cannot be removed when in the ON position.
All indications are implemented using LEDs, three
of which are not visible when the enclosure front is
fitted.
The power supply and standby batteries are
housed within the panel enclosure. The power
supply is fitted underneath the PCB with the mains
supply cable terminals accessible for easy
installation. The batteries are fitted in the back box
and retained by a plastic bar which is fixed to the
back box by a single screw.
Field cable Earth shields can be terminated to a
functional earth bar located in the rear of the panel
enclosure.
2.1 Cabinet Specifications
Enclosure construction:
Three-part high quality moulded ABS plastic
enclosure.
Keyhole for access control key.
14 knockouts for 20mm cable glands.
5 mounting holes in the rear of the back box.
Integral bezel design for surface mounting or
semi-flush mounting.
Logo recess on the top-right of the front cover.
Ingress Protection rating –IP30
Finish:
Fine-texture (spark finish)
Colour –Light Grey RAL7035

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PUBLICATION: OM_DUO-CEL_APP
ISSUE No. & DATE: 2 20/06/18
PAGE 5 of 46
Figure 1 –Panel/Repeater Enclosure external view
254 mm
262 mm
273 mm
365 mm
356 mm
348 mm
4 mm
77 mm
29 mm
SILENCE
BUZZER
SILENCE /
RESOUND
ALARMS
RESET
DISABLE
TEST
EVACUATE
SELECT
SUPPLY ON
GENERAL FIRE
GENERAL FAULT
GENERAL TEST
GENERAL DISABLE
ALERT / EVAC ON
FIRE SIGNAL ON
FIRE SIGNAL FAULT
SNDR FLT / DIS / TEST
SYSTEM FAULT
PSU FAULT
FUSED FAILED
EARTH FAULT
REPEATER FAULT
REMOTE I/P FAULT
CONTROLS ON
1
2
3
4
5
6
7
8
2.1.1 Panel Order Codes & Descriptions
CEL Part No.
Description
Internal SLA Battery
(Not Supplied)
508.031.701
1 Zone Panel –Standard
24V, 3.4Ah
508.031.707
1 Zone Panel –Twin-Wire
24V, 3.4Ah
508.031.702
2 Zone Panel –Standard
24V, 3.4Ah
508.031.708
2 Zone Panel –Twin-Wire
24V, 3.4Ah
508.031.703
4 Zone Panel –Standard
24V, 3.4Ah
508.031.709
4 Zone Panel –Twin-Wire
24V, 3.4Ah
508.031.704
8 Zone Panel –Standard
24V, 3.4Ah
508.031.710
8 Zone Panel –Twin-Wire
24V, 3.4Ah
508.031.705
8 Zone Repeater c/w Mains AC Power Supply
24V, 3.4Ah
508.031.706
8 Zone Repeater –DC Powered From Panel
N/A

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PAGE 6 of 46
2.1.2 Replacement PCB Order Codes and Descriptions
CEL Part No
Description
Used in
2605501
1 Zone standard motherboard
508.031.701
2605502
2 Zone standard motherboard
508.031.702
2605503
4 Zone standard motherboard
508.031.703
2605504
8 Zone standard motherboard
508.031.704
2605505
Repeater c/w PSE motherboard
508.031.705
2605506
Repeater no PSE motherboard
508.031.706
2605533
1 Zone twin wire motherboard
508.031.707
2605534
2 Zone twin wire motherboard
508.031.708
2605535
4 Zone twin wire motherboard
508.031.709
2605536
8 Zone twin wire motherboard
508.031.710
2501061
Spare access controls key (1 off)
All
2000843
BAQ35T24 Power supply
All except repeater with no PSE
2.1.3 Optional Language Display Overlays
CEL Part No
Description
*** None Currently Available ***

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2.2 Fire Detection and Alarm Panel Description
Figure 2 shows the exploded view of the DUO-CEL panel.
Figure 2 –DUO-CEL 8 Zone Panel –exploded view
Mains Cable Restraint
Earth Bar
Enclosure Backbox
Enclosure
Front Cover
Control
Board with
Cover
3.4Ah
Powersonic
Batteries
BAQ35T24
Power Supply
Battery
Clamp
2.2.1 DUO-CEL control board
The DUO-CEL panel is available in two formats;
Standard and Twin-Wire. The standard panel
monitors conventional detectors on the zone
circuits and operates conventional sounders via the
sounder circuits. The twin-wire panel monitors
conventional detectors on the zone circuits but can
also operate Fulleon Twin-Wire sounders from the
zone circuits. The conventional sounder circuits are
still available on the twin-wire panel.
The Twin-Wire control board is slightly different to
the Standard control board but this is only evident
at component level. Both control boards consist of a
PCB with all components mounted on the front. All
LED indicators, configuration switches/links and
user controls are mounted on this board. The board
accommodates the microcontroller (including
Firmware and RAM) and all of the site-specific
configuration features (DIL switch & EEPROM).
Power supply monitoring circuitry is also located on
this PCB.
2.2.2 Display overlay and insert
The display overlay is bonded to the PCB cover
and is used with a text label insert to identify each
of the zones. The insert slides into a pocket in the
overlay and cannot be removed when the front
cover is fitted.
User controls are operated by pressing on the
rectangular printed buttons on the overlay,
providing mechanical contact with the buttons on
the PCB.
The LEDs on the PCB are viewed through oval
windows in the overlay.
The text on the overlay is printed and therefore any
language variants will require replacement of the
complete overlay on the PCB cover.
The zone location insert is a card allowing text to be
hand-written or typed. It is not compatible with
printers. A paper insert can be used if printing via a
computer is required (paper insert is not supplied).

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PAGE 8 of 46
2.2.3 Power Supply
The Power Supply is a self-contained switch-mode
unit and is mounted underneath the control board.
This unit provides 27.5VDC (nominal) at 1.5A to the
control board.
The output from the PSU is temperature
compensated, i.e. the battery charging voltage is
automatically adjusted to the safest optimum value
depending on the temperature of the batteries.
The PSU is connected to the control board by two
leads:
The output lead has a 3-way socket, providing
0V, 28V and Mains Fault signals. (The
connector on the panel motherboard may
have a 4th pin for Functional Earth connection
from alternative power supplies).
The Thermistor lead connects to the
Thermistor socket on the control board, the
Thermistor being situated on the control
board. (The Thermistor is used to monitor the
battery temperature).
The control board provides connections for the
standby batteries via spade terminals.
The enclosure accommodates 2-off 12V 3.4Ah
Sealed Lead-Acid Powersonic PS-1230 batteries.
NOTE: The battery clamp is not designed to clamp
batteries other than the PS-1230.
2.2.4 Repeater Panel
The repeater panel uses the same control board
and enclosure as the fire alarm panel. The
components for the redundant circuits [zones,
alarm circuits etc] are not present on the repeater
control board. The repeater and fire panel
mechanical arrangements are similar. The repeater
can be supplied with its own battery-backed
230VAC PSU, or without a PSU (powered directly
from the Fire Alarm panel’s Auxiliary DC output).
Repeaters are only supported on the 4-zone & 8-
zone panels.
Up to 3 repeaters can be connected to the panel.
The panel controls the Repeaters through the
RS485 serial communications link.
3. Functional Specification
3.1 Panel Input/Output List
See Table 1 below.
Table 1 –Panel Input/Ouput List
Input/Output
1-Zone
2-Zone
4-Zone
8-Zone
Detection zones
1
2
4
8
Multi-function Remote control
Input:
Class Change, Alert, Evacuate,
Silence alarms, Reset
1
1
1
1
Disablement Output
1
1
1
1
Evacuate Output
1
1
1
1
Buzzer Active Output
1
1
1
1
Standard Sounder circuits
2 @ 500mA
2 @ 500mA
4 @ 500mA
4 @ 500mA
Monitored Fire Signal Output
1 @ 250mA
1 @ 250mA
1 @ 250mA
1 @ 250mA
Auxiliary Fire Relay O/P
(Volt Free Change Over)
1
1
1
1
Auxiliary Fault Relay O/P
(Volt Free Change Over)
1
1
1
1
Auxiliary 28VDC Supply [fused]
1 @ 250mA
1 @ 250mA
1 @ 250mA
1 @ 250mA
Repeater facility
N/A
Two terminals for serial
comms.

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3.2 Features List
Enclosure
Injection moulded, 3-part, ABS plastic, flame retardant enclosure.
Surface or Semi-flush mounting.
14 x 20mm Gland knockouts at the top.
Temperature-compensated
battery charging
Battery charging voltage is automatically adjusted between 28.25Vdc and
26.72Vdc over an ambient temperature range of –5°C to +40°C.
Battery disconnect
Prevents permanent damage to the battery due to deep discharge by
automatically disconnecting it when the battery voltage falls below 21.6V.
Remote Control input providing
five controls:
1. Class Change
Operates all sounders for up to 5 seconds without giving any panel
indications.
2. Alert
Pulses all sounders and operates the fire buzzer.
3. Evacuate
Operates all sounders continuously and operates the fire buzzer.
4. Silence Alarms
Latches the Silence Alarms condition until a new alarm condition is
detected or until panel reset.
5. Reset
Returns the panel to the quiescent state after a fault or alarm
condition.
Configurable detection zones
DIL switch configuration provides the following capabilities:
Latching or non-latching Fire indication on zone 1.
Resistor or capacitor EOL monitoring –applies to all zones. (Not
functional on Twin-Wire panels)
Zone Short Circuit gives fault or fire alarm (for backwards
compatibility) –applies to all zones.
Factory configuration:
Latching zone 1 Fire indication
Capacitor EOL (not for twin-wire)
Zone Short circuit gives fault.
Selectable Zonal or General
Alarm Sounder operation
Selectable via DIL switches on the motherboard.
When set to Zonal, the sounders operate as follows:
Twin-wire panels ( 1 to 8 zone):
All 2-wire sounders operate zonally, normal sounder circuits operate
as general alarms
Standard panels, 1 to 4 zone panels:
Sounder circuits 1 to 4 operate individually for a fire condition on the
respective zone.
Standard panels, 8-zone panel:
Sounder circuits 1 to 4 operate as general alarms.
Alert Sounder operation
DIL switch selectable on the motherboard.
When the Alert Mode DIL switch is set to the ON position, sounders pulse
for automatic detector alarms and are continuous for Manual Call Point
alarms. NOT COMPATIBLE WITH RESISTOR EOL.
Zonally configurable co-incidence
(dependency) for Automatic Fire
Detectors
Programmable facility which allows any zone to be configured for co-
incidence (dependency) detection. Requires two occurrences of detector
activation within 30 minutes before an alarm is raised. Manual call points
are not affected.

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Fire Signal Output
Fully fault monitored output, providing 28VDC (nominal) at up to 250mA
when active.
Fire Relay Output
Non- monitored Relay output, providing one set of volt-free change-over
contacts.
Fault Relay Output
Non- monitored Relay output, providing one set of volt-free change-over
contacts, with fail-safe operation (fault signalled if total power failure)
Short Circuit Fire Option
A DIL switch selectable option on the motherboard to allow a short circuit
on the zones to be indicated as an alarm. For compatibility with older
detectors which do not have current limiting circuits.
NOTE: Automatic fire Detector activation will be detected by the panel as
a Manual Call Point alarm.
Auxiliary 24VDC 250mA power
supply output
Protected by a fast acting electronic fuse. Operation of the fuse is
indicated on the display. Operation of the Reset button on the panel
display resets the electronic fuse.
DIL switch configurable to switch off for 10 seconds during panel reset.
Open collector outputs
Three outputs capable of sinking 50mA each:
Buzzer Active.
Disablement Active.
Evacuate Active.
Earth Fault monitoring
Can be disabled by removing a link on the control board.
Zone/Output disablement feature
The following circuits can be independently disabled/enabled:
Each Zone
Fire Signal Output
All Sounders
Buzzer disablement feature
DIL switch selectable option to allow the buzzer and Buzzer Active output
to be prevented from operating.
Intended for use during commissioning and maintenance only.
One Man Zone Test
Each zone can be independently set to the One Man test condition.
Sounders will operate momentarily as per configuration of zonal alarms &
alert mode.
NOTE: Zone Dependency (co-incidence) is not applied during one-man-
test on a test zone.
One Man Sounder Test
Operates the general sounders (and twin-wire sounders if twin-wire
panel) intermittently.
Automatic fire detector and
manual call point fire event
discrimination
Each zone is capable of recognising whether a fire condition has been
caused by an automatic fire detector or a manual call point (unless the
panel is configured to EOL resistor monitoring on the zones). This is used
in conjunction with the dependency (co-incidence) feature and Alert alarm
mode.
Alarm Counter
The panel keeps a record of the number times it enters the alarm
condition. This count can be displayed on the display LEDs as a binary
value, up to a maximum value of 999 (1111101001). The counter can be
reset via a button on the motherboard which can only be accessed by
removing the front cover.
Repeater panels
Support for up to 3 repeater panels via two-wire RS485 serial
communication. [Repeaters are not available for the 1 & 2 zone panels].

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4. DUO-CEL Panel –Control Board Features
Figure 3 illustrates the control board for the 8 zone DUO-CEL panel with the PCB cover fitted.
Figure 3 –Panel control board and PCB cover
ZONE 1
Z1+ Z1–ZONE 2 Z2+ Z2 –ZONE 3 Z3+ Z3 –ZONE 4 Z4+ Z4 –ZONE 5 Z5+ Z5 –ZONE 6 Z6+ Z6 –ZONE 7 Z7+ Z7 –ZONE 8 Z8+ Z8 –
FIRESIGNAL
+–FIRE RELAY N/O P N/C FAULT RELAY N/O P N/C REMOTE I/P 0V DIS. EVAC. BUZ. AUX0.25A 24V 0V REPEATER A B BA0V24V ALARMCIRCUITS AL1+ AL1–AL2+ AL2–AL3+ AL3–AL4+ AL4–
ZONE INPUTS.
Also provides outputs for Twin-Wire
Sounders on Twin-Wire panels. FIRE
ROUTING
FIRE
RELAY FAULT
RELAY
REMOTE
CONTROL
INPUT:
Class Change
Alert
Evacuate
Silence Alarms
Reset System
REMOTE
OUTPUTS:
Disabled
Evacuate
Buzzer Active
ALARM CIRCUITS
FUSED
24VDC
OUTPUT
RS485
COMMS.
TERMINALS
UNFUSED
24VDC
OUTPUT
BATTERY
LEADS
THERMISTOR
LEAD
POWER
SUPPLY
LEAD
BATTERY
FUSE INTERNAL
BUZZER
MICROCONTROLLER
PROGRAMMING
SOCKET
MOUNTING
TAB
PCB
COVER
PCB REMOTEO/PS
SILENCE
BUZZER
SILENCE /
RESOUND
ALARMS
RESET
DISABLE
TEST
EVACUATE
SELECT
SUPPLY ON
GENERAL FIRE
GENERAL FAULT
GENERAL TEST
GENERAL DISABLE
ALERT / EVAC ON
FIRE SIGNAL ON
FIRE SIGNAL FAULT
SNDR FLT / DIS / TEST
SYSTEM FAULT
PSU FAULT
FUSED FAILED
EARTH FAULT
REPEATER FAULT
REMOTE I/P FAULT
CONTROLS ON
1
2
3
4
5
6
7
8
REP 1
REP 2
REP 3
FLT
FLT
FLT ALARM COUNT RESET SWITCH
FC DUO-CEL 8 ZONE 1801306
INDOOR USE
ONLY
1: Z1 NON LATCH
2: RESISTOR EOL
3: ALERT MODE
4: DEPEND CONF
5: ZONAL ALARMS
6: S/C FIRE
7: AUX RESET
8: DISABLE BUZ
9: REP CONFIG
10: SNDR EXPAND
11: SPARE
12: SPARE
EARTH FAULT
MONITORING ON OFF
CONFIGURATION
DIL SWITCHES
EARTH FAULT
DISABLE LINK
ZONAL FIRE LEDs
ALARM
COUNTER
RESET
BUTTON
REPEATER
FAULT LEDs
GENERAL LED
INDICATORS
USER
CONTROLS
ZONAL FAULT LEDs
ZONE
LOCATION
INSERT
ACCESS KEY
ENTRY
Note:
The Microcontroller programming socket is for use during manufacturing only and should not have any links
fitted across any of the pins. Improper use of the connector may result in permanent damage to the control
board.

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ISSUE No. & DATE: 2 20/06/18
PAGE 12 of 46
5. DUO-CEL Repeater –Control Board Features
Figure 4 illustrates the control board for the DUO-CEL repeater with the PCB cover fitted.
Figure 4 –Repeater control board and PCB cover
ZONE 1
Z1+ Z1–ZONE 2 Z2+ Z2 –ZONE 3 Z3+ Z3 –ZONE 4 Z4+ Z4 –ZONE 5 Z5+ Z5 –ZONE 6 Z6+ Z6 –ZONE 7 Z7+ Z7 –ZONE 8 Z8+ Z8 –
FIRESIGNAL
+–FIRE RELAY N/O P N/C FAULT RELAY N/O P N/C REMOTE I/P 0V DIS. EVAC. BUZ. AUX0.25A 24V 0V REPEATER A B BA0V24V ALARMCIRCUITS AL1+ AL1–AL2+ AL2–AL3+ AL3–AL4+ AL4–
24VDC
INPUT
For DC
powered
repeater
RS485
COMMS.
TERMINALS
BATTERY
LEADS
THERMISTOR
LEAD
POWER
SUPPLY
LEAD
BATTERY
FUSE INTERNAL
BUZZER
MICROCONTROLLER
PROGRAMMING
SOCKET
MOUNTING
TAB
PCB
COVER
PCB REMOTEO/PS
NOTE:
24V & 0V Terminals are only
available on the DC powered
repeater panel.
NOTE:
Power Supply
connections and
battery fuse are only
on the mains
powered repeater.
SILENCE
BUZZER
SILENCE /
RESOUND
ALARMS
RESET
TEST
EVACUATE
SUPPLY ON
GENERAL FIRE
GENERAL FAULT
GENERAL TEST
GENERAL DISABLE
ALERT / EVAC ON
FIRE SIGNAL ON
FIRE SIGNAL FAULT
SNDR FLT / DIS / TEST
REPEATER FAULT
REPEATER PSU FAULT
PANEL PSU FAULT
EARTH FAULT
COMM FAULT
REMOTE I/P FAULT
CONTROLS ON
1
2
3
4
5
6
7
8
FC DUO-CEL REPEATER 1801306
INDOOR USE
ONLY
1: NUM REP A
2: NUM REP B
GENERAL LED
INDICATORS
ACCESS KEY
ENTRY
USER
CONTROLS
CONFIGURATION
DIL SWITCHES
ZONAL FIRE LEDs
ZONAL FAULT LEDs
ZONE
LOCATION
INSERT
Note:
The Microcontroller programming socket is for use during manufacturing only and should not have any links
fitted across any of the pins. Improper use of the connector may result in permanent damage to the control
board.

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PAGE 13 of 46
6. Power Supply
6.1 General
The DUO-CEL uses a BENTEL BAQ35T24 switch
mode Power Supply which has the following
features:
Input voltage: 230 VAC 50/60Hz
Output voltage: 27.15VDC (nominal @ 25oC)
Stability over 1% with full load
Overload protection
Short-circuit protection
Insulation class 1
Tested and approved to EN 60950:1996 +
A4:1997
Dimensions: 130mm x 100mm x 38mm
Weight: 389g
The battery monitoring circuit is part of the control
board. This provides:
Thermistor for temperature compensation
Battery/charger fault monitoring
Automatic “battery disconnect”facility.
Disconnects the battery when the battery
terminal voltage falls below 21.6V, to prevent
deep discharge of the batteries if supplying the
panel for an abnormally long period of time.
6.1.1 Supply Input
The PSU is designed to run from mains voltage at
230Vac +10%, -15%, 50/60Hz. The input is
protected by a 3A 20mm glass fuse. The fuse is
inside the metal cage and is not user-serviceable.
6.1.2 Supply Output
The output from the PSU is 27.15Vdc ±1% at 25°C
with load up to 1.5A. The output is protected by a
6.3A 20mm glass fuse. The fuse is inside the metal
cage and is not user-serviceable.
The output current is shared between the panel
load and battery charging. The battery charging
current is therefore dependent on output current
and will fall to zero as the panel load approaches
1.5A.
The output is connected to the panel via a three-
wire flying lead, providing the DC power and a fail-
safe fault signal.
6.1.3 Battery Charger
The power supply is capable of charging 2-off 12V
3.4Ah SLA Powersonic PS-1230 batteries.
The power supply unit monitors a Thermistor on the
panel control board and automatically adjusts the
output voltage to provide the optimum safe
charging voltage over an operating temperature
range of -5oC to +40oC.
The charging voltage can be adjusted via the
trimmer potentiometer VR1 on the PSU. However,
the charging voltage is factory set and adjustment
should not be necessary (a 15K resistor can be
used in place of the Thermistor to simulate 25oC).
NOTES:
1. The battery charging voltage is temperature
dependant and should be set as detailed in
Table 2. Charging at too high a voltage may
result in overheating, resulting in damage to
the batteries. Charging at too low a voltage
will result in insufficient charging of the
batteries.
2. The charging profile of the power supply unit
is optimised for Powersonic™ batteries and
charging of other manufacturers’ batteries is
not recommended. Consult your battery
supplier or battery manufacturer before use.
Table 2 –Float Charge Voltages for
Powersonic VRLA batteries
Ambient
Temperature
Charger Set
voltage (V)
Float Charge
Voltage (V)
(2x12V
Batteries in
series)
-10oC (14oF)
28.32 –28.42
27.84 –28.44
0oC (32oF)
27.82 –27.92
27.60 –28.20
10oC (50oF)
27.45 –27.55
27.36 –27.96
20oC (68oF)
27.20 –27.30
27.12 –27.72
25oC (77oF)
27.10 –27.20
27.00 –27.60
30oC (86oF)
27.03 –27.13
26.88 –27.48
40oC (104oF)
26.91 –27.01
26.64 –27.24
50oC (122oF)
26.84 –26.94
26.40 –27.00
6.1.4 Battery Monitoring
The health of the batteries, the battery connections
and fuse are checked by a battery monitor circuit on
the panel control board.
The batteries are monitored for disconnection. If
the battery voltage falls to 18V or below then a
PSU fault is raised and the charging voltage is
removed from the terminals.
The batteries are monitored for low voltage. If
the battery voltage drops below 21.6V when the
mains power is disconnected, then the batteries
are electronically disconnected to prevent deep
discharge. The batteries are reconnected only
after mains power is restored.
The batteries are monitored periodically for high

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PAGE 14 of 46
internal resistance. A PSU fault will be raised if
high resistance is detected. This test involves
loading the batteries so a battery load test is
also performed.
6.1.5 Visual indications
The Power Supply Unit has only one green LED.
This indicates that there is power available on the
output of the power supply.
6.1.6 Fault Conditions
The yellow fault wire from the PSU is normally at
27Vdc (nominal). The panel monitors this signal
and indicates a PSU fault if the voltage is removed.
6.2 Mechanical Protection
Warning:
The power supply uses hazardous voltages.
The unit is fitted with a protective cage to
protect service engineers from electrical shock.
Do not attempt to open or access any of the
internal components. The power supply
contains no user serviceable parts.
To prevent overheating, the ventilation holes in
the cage must not be obscured.
6.2.1 DUO-CEL Power Supply Features
and Connections
Figure 5 shows the layout of the BAQ35T24 Power
Supply.
Figure 5 –BAQ35T24 1.5A Power Supply Layout
TB2
VR1
NTC
+V
GND
B-
L
B+
Power
Connection to
Control Board
Incoming Mains
Cable
Secured with a
cable tie to the
backbox
Earth Wire to
EARTH bar
+V
ADJ - +
DC OUT
27V
1.5A Power
Supply Unit
230VAC IN
N L
THERMISTOR
DC OUT
TO PANEL
Power
Connection to
Control Board
Thermistor
Connection to
Control Board
Leave the
Earth wire 3cm
longer than the
Live & Neutral
wires
Negative
Temperature
Coefficient
Thermistor Input
Connector.
Earth Wire to
Control Board
Mounting
Screw
NOTE: The black wire may be connected to (B-) instead of (GND) on the PSU. This is quite normal and does
not affect the operation of the PSU in any way.

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PAGE 15 of 46
7. Compatible Field Devices
The DUO-CEL panel is compatible with the devices listed in section 7.1.
7.1 Field Device Part Numbers
Manufacturer
Part no.
Description
Standby
Current
(mA)
Max.
Devices
Per
standard
zone
(10uF
EOL)
Max.
Devices
Per
Twin-wire
zone
Thorn/Tyco
MF601
Smoke Detector Ionisation
0.035
32
16 (30)
Thorn/Tyco
MR601
Smoke Detector Optical
0.050
32
16 (24)
Thorn/Tyco
M600
Series 600 Universal Base
0.000
N/A
N/A
Thorn/Tyco
MR601T
High Performance Smoke Detector Optical
0.060
32
16 (20)
Thorn/Tyco
MD601
Heat Detector Rate Of Rise
0.043
32
16 (27)
Tyco
601CH
Conventional Enhanced CO Detector
0.057
32
16 (21)
Tyco
601H-R
Conventional Heat Detector
(Rate of Rise)
0.057
32
16 (21)
Tyco
601H-F
Conventional Heat Detector
Fixed Temperature {60 Deg C)
0.057
32
16 (21)
Tyco
601P
Conventional Optical Smoke Detector
0.057
32
16 (21)
Tyco
601PH
Conventional High Performance Optical Smoke
Detector
0.057
32
16 (21)
Thorn/Tyco
CP200
Alert Manual call point (590R)
0.000
32
5
Thorn/Tyco
MCP200
Alert Manual Call Point (590R)
0.000
32
5
Thorn/Tyco
CP211
Evacuate Manual Call Point (Current Limit)
0.000
32
16
Thorn/Tyco
CP230
Alert Manual call point (590R)
0.000
32
5
Thorn/Tyco
MCP230
Alert Manual Call Point (590R)
0.000
32
5
Thorn
CP260
Alert Manual Call Point (538R)
0.000
32
5
Tyco
MCP260
Alert Manual Call Point (538R)
0.000
32
5
Non Branded
5B
5” Conventional Base
0.000
N/A
N/A
Apollo
ORB-OP-
12001-APO
Orbis Optical Smoke Detector
0.093
32
12 (13)
Apollo
ORB-HT-
11001-APO
Orbis A1R Heat Detector
0.093
32
12 (13)
Apollo
ORB-OH-
13001-APO
Orbis Multi-sensor Smoke/Heat Detector
0.093
32
12 (13)
Apollo
ORB-HT-
11006-APO
Orbis CS Heat Detector
0.093
32
12 (13)
Apollo
ORB-MB-
00001-APO
Orbis TimeSaver Base
0.000
N/A
N/A
Apollo
ORB-MB-
00002-APO
Orbis TimeSaver Base LX (simplified)
0.000
N/A
N/A
Apollo
ORB-DB-
00003-APO
Orbis TimeSaver Diode Base
0.000
N/A
N/A
Apollo
ORB-MB-
00012-APO
Orbis LX Base (low cost)
0.000
N/A
N/A
Apollo
ORB-BA-
10008-APO
Series 65 to ORBIS Base Adaptor
0.000
N/A
N/A
Apollo
55000-217
Series 65 ionisation detector
0.035
32
16 (30)
Apollo
55000-317
Series 65 Optical detector
0.050
32
16 (24)
Apollo
55000-122
Series 65 heat detector A1R
0.035
32
16 (30)
Apollo
55000-125
Series 65 heat detector BR
0.035
32
16 (30)
Apollo
55000-132
Series 65 heat detector CR
0.035
32
16 (30)
Apollo
55000-137
Series 65 heat detector CS
0.035
32
16 (30)
Apollo
55000-200
Series 60 ionisation detector
0.035
32
NONE

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PAGE 16 of 46
Manufacturer
Part no.
Description
Standby
Current
(mA)
Max.
Devices
Per
standard
zone
(10uF
EOL)
Max.
Devices
Per
Twin-wire
zone
Apollo
55000-210
Series 60 integrating ion detector
0.035
32
NONE
Apollo
55000-100
Series 60 Grade 1 heat detector
0.035
32
NONE
Apollo
55000-101
Series 60 Grade 2 heat detector
0.035
32
NONE
Apollo
55000-102
Series 60 Grade 3 heat detector
0.035
32
NONE
Apollo
55000-103
Series 60 Range 1 heat detector
0.035
32
NONE
Apollo
55000-104
Series 60 Range 2 heat detector
0.035
32
NONE
Apollo
55000-300
Series 60 optical detector
0.050
32
NONE
Apollo
55000-380
Series 60 optical/heat detector
0.050
32
NONE
Apollo
45681-200
Series 60 mounting base
0.000
32
NONE
KAC
WR2072-470
Alert Manual call point (470R)
0.000
32
4
System
Sensor
2351E
Optical Smoke Detector
0.160
20
8
System
Sensor
2351TEM
Optical & Heat Detector
0.270
10
4
System
Sensor
5351E
ROR Heat Detector
0.140
20
8
System
Sensor
4351E
High Temperature Heat Detector
0.140
20
8
System
Sensor
B401RSD
Base c/w 470R resistor & Diode
0.000
20
8
Fulleon
SQG3/SDR
2-wire Squashni Sounder
0.050
N/A
12
Fulleon
SQG3/AV
2-wire Squashni Sounder Beacon
0.050
N/A
8
Fulleon
Squashni
2-wire Squashni Sounder
0.050
N/A
4
Fulleon
Symphoni
2-wire Symphoni Sounder
0.050
N/A
9
Notes:
1. The recommended cable is FP200 or MICC
PYRO:
CABLE
1.5mm csa
Resistance
per Km
per Core
(Ω)
Capacitance
per Km
Core to Core
(uF)
Capacita
nce per
Km Core
to Screen
(uF)
FP200
12.1
0.08
0.15
MICC
PYRO
Light Duty
12.1
0.19
0.21
MICC
PYRO
Heavy Duty
12.1
0.13
0.17
2. Maximum Cable length is 300m, or 3.63Ω per
core, 63nF core to core & core to screen.
3. The maximum number of detectors and
sounders per zone in section 7.1 assumes no
mixing of devices. The total number of detectors
and/or manual call points per zone must not
exceed 32. This is a recommendation of BS
EN54-2:1997 Annex D. The additional limitations
for twin-wire operation are listed in note (7)
below.
4. The Maximum number of devices per zone is
based on factory default monitoring
configuration [10uF capacitor EOL for the
standard panel or composite device for the twin-
wire panel]. For resistor EOL or Twin-Wire, the
total quiescent current drawn per zone by all
devices on the zone should not exceed 1.6mA.
Exceeding this current will result in a failure to
correctly detect an open circuit or head removal.
5. The number in brackets for the twin-wire zone is
the maximum number of devices allowed if NO
twin-wire sounders are connected to the zone.
6. The values are for guidance only and will vary
for individual detectors and cable types. Each
zone must be fully checked for correct operation
& fault monitoring during installation &
commissioning.
7. When using twin-wire sounders, observe the
following additional requirements:
a. DO NOT exceed the maximum number of
sounders per zone as listed in the above
table in section 7.1. These figures are based
on extensive testing and allow for operation

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at low battery voltage and no mains power,
on long cable runs.
b. When mixing different types of sounders on
the same zone, use the lowest quantity
shown in the table. For example, you can
have 12 SQG3/SDR on a zone as long as no
other sounders are connected on that zone.
If you want to mix SQG3/SDR with SQG3/AV
then the TOTAL number of sounders on the
zone should be limited to 8 (e.g. 7 x
SQG3/SDR and 1 x SQG3/AV).
c. DO NOT leave any detector bases empty. All
bases should have a detector fitted or be
linked through. Empty bases will introduce a
diode into the positive line and this will
adversely affect the operation of the
sounders.
d. Reducing the number of sounders WILL NOT
allow more detectors to be used, unless no
sounders are connected (see number in
brackets in the table).
e. All detector bases must have a 1N4002
diode fitted across the line IN and line OUT
terminals (usually on the positive line but
sometimes on the negative line). Some
detector bases come with Schottky diodes
fitted. These are not compatible with the 2-
wire zone operation and must be replaced
with 1N4002 diodes. This applies even if no
sounders are connected. Use of a Schottky
diode will prevent the panel from detecting a
detector head removal.
8. If using detector bases without diodes fitted,
then removal of a detector head will result in an
open circuit of the cable. All devices fitted to the
zone cable beyond the detector head removed
will no longer be powered and will therefore not
operate. Only use detector bases without diodes
if the zone has no 2-wire sounders and no
Manual Call Points, or is configured to Resistor
EOL.

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PAGE 18 of 46
8. Overview Of User Functions
This section gives an overview of the functions available to the end user.
8.1 User Indications
General Indicator Section
Indicator
Colour
Operating Condition
Supply On
Green
OFF: No mains or battery power, ON: Panel has power (battery and/or mains)
General Fire
Red
OFF: Quiescent, FLASH: New Alarm Condition, ON: Alarm Accepted
General Fault
Yellow
OFF: No faults present, FLASH: One or more faults present
General Test
Yellow
OFF: No circuits in Test, ON: One or more circuits in Test
General Disablement
Yellow
OFF: No circuits Disabled, ON: One or more circuits Disabled
Alert/Evac On
Red
OFF: No Alert or Evacuate, FLASH: Remote Alert active. ON: Remote Evacuate
active or Panel Evacuate active
Fire Signal On
Red
OFF: Fire Signal output not active, ON: Fire Signal output active
Fire Signal Flt / Dis / Tst
Yellow
OFF: No fault on Fire Signal output, FLASH: Fault on Fire Signal output,
ON: Fire Signal output Disabled or in test
Sounder Flt / Dis / Dis
Yellow
OFF: No Fault on Sounder circuits, FLASH: Fault on one or more Sounder
circuits, ON: Sounder circuits Disabled or in Test
System Fault
Yellow
OFF: System is working correctly, ON: System is not functional. (Microcontroller
failed or EEPROM data corrupted)
PSU Fault
Yellow
OFF power supply is healthy, FLASH: PSU fault and/or battery fault
Fuse Failed
Yellow
OFF: Auxiliary 24Vdc output available, FLASH: Electronic Fuse on Auxiliary
24Vdc output activated
Earth Fault
Yellow
OFF: No cable faults to Earth, FLASH: One or more cable faults to Earth
Repeater Fault
Yellow
OFF: No Repeater faults, FLASH: One or more Repeater faults
Remote Control Fault
Yellow
OFF: No faults on Remote Control input, FLASH: Fault on Remote Control input
Controls On
Yellow
OFF: User Controls disabled, ON: User Controls enabled, FLASH: Select mode
active
SILENCE
BUZZER
SILENCE /
RESOUND
ALARMS
RESET
DISABLE
TEST
EVACUATE
SELECT
SUPPLY ON
GENERAL FIRE
GENERAL FAULT
GENERAL TEST
GENERAL DISABLE
ALERT / EVAC ON
FIRE SIGNAL ON
FIRE SIGNAL FAULT
SNDR FLT / DIS / TEST
SYSTEM FAULT
PSU FAULT
FUSED FAILED
EARTH FAULT
REPEATER FAULT
REMOTE I/P FAULT
CONTROLS ON
1
2
3
4
5
6
7
8
Zone Location Indications
Indicator
Colour
Operating Condition
User Zone
Location Text
Red
OFF: No Alarm on zone, FLASH: New Alarm on zone, ON: Alarm accepted on zone.
NOTE: With Detector/MCP discrimination, the left LED is for MCPs, the right LED for
Detectors.
User Zone
Location Text
Yellow
OFF: No Fault on zone circuit, FLASH: Fault on zone circuit, ON: Zone circuit Disabled or in
Test

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8.2 User Controls
SILENCE
BUZZER
SILENCE /
RESOUND
ALARMS
RESET
DISABLE
TEST
EVACUATE
SELECT
SUPPLY ON
GENERAL FIRE
GENERAL FAULT
GENERAL TEST
GENERAL DISABLE
ALERT / EVAC ON
FIRE SIGNAL ON
FIRE SIGNAL FAULT
SNDR FLT / DIS / TEST
SYSTEM FAULT
PSU FAULT
FUSED FAILED
EARTH FAULT
REPEATER FAULT
REMOTE I/P FAULT
CONTROLS ON
1
2
3
4
5
6
7
8
Switch
Functionality
Button Availability
Evacuate
Operates all sounders continuously and pulses the
Alert/Evac On LED until the Silence/Resound Alarms
button is operated
When controls are unlocked.
Silence Buzzer
Silences the internal buzzer on the Panel & Repeaters.
When controls are locked or unlocked
Silence/Resound
Alarms
When any sounders are active, press to silence sounders.
Press again to resound the silenced sounders.
When controls are unlocked
Reset
Press to clear any fault & alarm conditions and return the
panel to the quiescent state
When controls are unlocked
Disable
Displays Alarm Counter
When controls are locked
Illuminates only the currently disabled circuits
When controls are unlocked
Toggles the selected circuit between Disabled & Enabled
states.
When controls are unlocked and in
circuit select mode
Test
Press to illuminate all LEDs and sound the buzzer for 5
seconds.
When controls are locked
Illuminates only the circuits currently in test
When controls are unlocked
Toggles the selected circuit between Test & Normal states.
When controls are unlocked and in
circuit select mode
Select
First operation enables the circuit select mode; subsequent
operations move the flashing cursor through the available
circuits until the last circuit and then exits the circuit select
mode.
When controls are unlocked
Access Controls Keyswitch

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8.3 Selection of Zones or Outputs for
Disablement, Enablement or Test
The panel provides a simple and straightforward
means of selecting the sounder outputs and/or
zones which need to be disabled, re-enabled or set
to the test mode. The Fire Signal Output can also
be disabled and enabled or placed into the test
mode.
The zone or output is selected using the Circuit
Select feature. This allows the user to move a
flashing cursor indication down through the yellow
fault LEDs associated with the available circuits
until the required zone or output is highlighted. The
yellow LED for the selected zone/output flashes in
“Cursor” mode, which is easily distinguishable from
all other indications.
For each circuit that the Cursor is on, the General
Test and General Disablement LEDs will indicate
the current status of the circuit; flashing Test
indicates the circuit is in Test mode, flashing
Disablement indicates the circuit is disabled. Both
LEDs OFF indicates the circuit is in normal
operation.
If the circuit is in normal operation, pressing the
Disable button once will disable the circuit,
causing the General Disablement LED to flash
and the circuit fault LED to illuminate steady
(with flashing cursor).
If the circuit is in normal operation, pressing the
Test button once will set the circuit to test mode,
causing the General Test LED to flash and the
circuit fault LED to illuminate steady (with
flashing cursor).
If the circuit is currently disabled, pressing the
Disable button once will restore the circuit to
normal, causing the General Disablement LED
to switch off and the circuit fault LED to switch
off (with flashing cursor).
If the circuit is currently in test, pressing the Test
button once will restore the circuit to normal,
causing the General Test LED to switch off and
the circuit fault LED to switch off (with flashing
cursor).
If the circuit is currently disabled, pressing the
Test button once will change the circuit status
from disabled to test mode, causing the General
Disablement LED to switch off and the General
Test LED to flash.
If the circuit is currently in test, pressing the
Disable button once will change the circuit status
from test mode to disabled, causing the General
Test LED to switch off and the General
Disablement LED to flash.
NOTE: Disablements are stored in EEPROM and
are not lost when the panel is powered down. Test
conditions are cleared when the panel is powered
down.
8.4 Disabled Zones and Outputs
Any or all of the zones can be disabled.
A disabled zone will have power supplied to it but
will not report fire or fault conditions. The zone
power is switched off briefly when the zone is
disabled, and also when the zone is re-enabled.
Detectors on a disabled zone are still able to enter
the alarm condition but will not raise a fire alarm on
the panel.
In the twin-wire mode, sounders on disabled zones
will still be activated during a fire alarm unless the
sounders have been disabled.
The fire panel will respond normally to fire device
operations and wiring faults on all enabled zones.
The following outputs can also be disabled and
enabled:
All Sounder circuits including twin-wire (as a
group operation).
The Fire Signal Output.
A disabled output will not report fault conditions and
will not be activated, although power for monitoring
will still be applied.
8.5 Detector Zone Test.
When selected to the Test mode, devices
connected to the zone can be operated for test
purposes without operating the Fire Signal output or
the Fire Relay.
The zone(s) to be set to the One Man Test
condition are selected using the Cursor Select
feature described in 8.3.
The features of the One Man Zone Test condition
are:
A fire condition on a zone in Test Mode will not
operate any of the fire outputs.
Sounders operate for 5 seconds and then
automatically silence. Sounders operate in
general or zonal mode in accordance with the
panel configuration.
After each test the panel and the device being
tested are automatically reset allowing the next
device to be tested without needing to return to
the panel to silence and reset.
If a fire condition occurs on any zone other
than a zone in test mode, the panel responds
fully to the fire condition as per its normal fire
response and configuration.
8.6 Alarm Sounder One man Test
The One Man Sounder Test operates all sounders
on an intermittent basis until the Test mode is
manually cleared. This allows an engineer to walk
the protected area and confirm the operation of all
the sounders. The sounder on/off cycle is 2
seconds on and 15 seconds off to allow operation