Honeywell LT-32 User manual

Fire Alarm Control Panel LT-32 / LT-159
Installation and User Manual
M-168.1-SERIE-LT-EN / 08.2022

Fire Alarm Control Panel LT-32 / LT-159
2 M-168.1-SERIE-LT-EN / 08.2022
Intended purpose
This product may be used only for the applications outlined in the catalogue and in the technical description, and only in conjunction with the recommended and
approved external devices and components.
This documentation contains registered and unregistered trademarks. All trademarks are the property of the respective owners. The use of this documentation does
not grant you a licence or any other right to use any name, logo or label referred to or depicted herein.
This documentation is subject to the copyright of Honeywell. The content must not be copied, published, modified, distributed, transmitted, sold or changed without
the express prior written permission of Honeywell.
The information contained in this documentation is provided without warranty.
Safety-related user information
This manual includes information required for the proper use of the products described.
In order to ensure correct and safe operation of the product, all guidelines concerning its transport, storage, installation, and mounting must be observed. This includes
taking the necessary care when operating the product.
The term 'qualified personnel' in the context of the safety information included in this manual or on the product itself designates:
•project engineers who are familiar with the safety guidelines concerning fire alarm and extinguishing systems.
•trained service engineers who are familiar with the components of fire alarm and extinguishing systems and the information on their operation as included in this
manual.
•trained installation or service personnel with the necessary qualifications for carrying out repairs on fire alarm and extinguishing systems, or who are authorised
to operate, earth and label electrical circuits and/or safety equipment/systems.
Symbols
The following information is provided in the interests of personal safety and to prevent damage to the product described in this manual and all equipment connected to it.
Safety information and warnings to prevent hazards endangering the life and health of users and maintenance personnel, as well as causing damage to the equipment
itself, are indicated by the following pictograms. Within the context of this manual, these pictograms have the following meanings:
Warning -designates risks for man and/or machine. Non-compliance will result in risks to man and/or machine. The level of risk is indicated by the word
of warning.
Note - important information on a topic or a procedure and other important information.
§
Standards and guidelines - observe configuration and commissioning information in accordance with the national and local requirements.
This symbol precedes information about compliance with standard(s).
Dismantling
In accordance with Directive 2012/19/EU (WEEE), after being dismantled, electrical and electronic equipment is taken back by the manufacturer for
proper disposal.
© Honeywell International Inc./technical changes reserved!
This documentation is subject to copyright law and, as per Sections 16 and 17 of the German Copyright Act (UrhG), may be neither copied nor disseminated in any
other way. Any infringement as per Section 106 of the UrhG may result in legal action.

Fire Alarm Control Panel LT-32 / LT-159
M-168.1-SERIE-LT-EN / 08.20223
Contents
1General / Application .............................................................................................................................................................................................................................................................................................................................................................5
1.1 Precautions..........................................................................................................................................................................................................................................................................................................................................................................6
1.2 CE marking and information...................................................................................................................................................................................................................................................................................................................................7
1.3 National Standards ........................................................................................................................................................................................................................................................................................................................................................7
2Transport damage inspection.........................................................................................................................................................................................................................................................................................................................................8
2.1 Pre-installation check list...........................................................................................................................................................................................................................................................................................................................................9
3Installation Overview ...........................................................................................................................................................................................................................................................................................................................................................10
4Specifications...........................................................................................................................................................................................................................................................................................................................................................................11
4.1 Mechanical specifications .....................................................................................................................................................................................................................................................................................................................................12
4.2 Electrical specifications ...........................................................................................................................................................................................................................................................................................................................................13
4.3 Environmental specifications..............................................................................................................................................................................................................................................................................................................................13
5Panel parts – front view .....................................................................................................................................................................................................................................................................................................................................................14
5.1 Panel parts – internal view......................................................................................................................................................................................................................................................................................................................................15
6Panel installation ...................................................................................................................................................................................................................................................................................................................................................................17
6.1 Surface mounting.........................................................................................................................................................................................................................................................................................................................................................18
7Cabling ..........................................................................................................................................................................................................................................................................................................................................................................................19
7.1 Cable routing and connections..........................................................................................................................................................................................................................................................................................................................21
7.2 LT-32 setup and connections overview.......................................................................................................................................................................................................................................................................................................23
7.3 LT-159 setup and connections overview....................................................................................................................................................................................................................................................................................................24
8Detectors and modules overview...............................................................................................................................................................................................................................................................................................................................25
9Display and controls............................................................................................................................................................................................................................................................................................................................................................26
10 System default password ................................................................................................................................................................................................................................................................................................................................................28
11 Display overview .....................................................................................................................................................................................................................................................................................................................................................................29
11.1 Display indications and buttons..................................................................................................................................................................................................................................................................................................................30
12 Configuration menu ............................................................................................................................................................................................................................................................................................................................................................31

Fire Alarm Control Panel LT-32 / LT-159
4 M-168.1-SERIE-LT-EN / 08.2022
13 Program menu.........................................................................................................................................................................................................................................................................................................................................................................32
13.1 Configuration – access to menu..................................................................................................................................................................................................................................................................................................................33
13.2 Configuration - date and time setting .....................................................................................................................................................................................................................................................................................................34
13.3 Configuration – panel configuration ........................................................................................................................................................................................................................................................................................................36
13.4 Configuration – autolearn ................................................................................................................................................................................................................................................................................................................................39
13.5 Configuration – description ............................................................................................................................................................................................................................................................................................................................40
13.6 Configuration – matrix / Cause and Effect I/O Matrix ................................................................................................................................................................................................................................................................42
13.7 Configuration – activation delay..................................................................................................................................................................................................................................................................................................................44
14 Operation - Enable / Disable Zone and Point...................................................................................................................................................................................................................................................................................................46
14.1 System status – wireless devices.................................................................................................................................................................................................................................................................................................................47
14.2 System status – panel diagnostic values ..............................................................................................................................................................................................................................................................................................48
14.3 System status – points diagnostic values.............................................................................................................................................................................................................................................................................................49
14.4 System status – history log..............................................................................................................................................................................................................................................................................................................................50
14.5 System test - panel user interface and relay .......................................................................................................................................................................................................................................................................................51
14.6 System test – zones...............................................................................................................................................................................................................................................................................................................................................52
14.7 System test - outputs...........................................................................................................................................................................................................................................................................................................................................53
14.8 System test – sounders ......................................................................................................................................................................................................................................................................................................................................54
15 Maintenance .............................................................................................................................................................................................................................................................................................................................................................................55
16 Product list..................................................................................................................................................................................................................................................................................................................................................................................56
16.1 Compatible Devices ..............................................................................................................................................................................................................................................................................................................................................56

Fire Alarm Control Panel LT-32 / LT-159
M-168.1-SERIE-LT-EN / 08.20225
1GENERAL / APPLICATION
The purpose of this manual is to provide the user with instructions concerning installation, use and maintenance of the LT-32 / LT-159 Fire Alarm Control Panel
(FACP).
SYSTEM EQUIPMENT
The analogue-addressable LT-32 / LT-159 FACP is compact in size and very easy to install and configure. The system is specifically designed for Agile wireless
equipments. Installation and commissioning time are reduced to a minimum, since only the physical connection to the wireless system gateway is required allowing
the FACP indentifies the sensors, input modules, sirens/flashes installed.
LT-32 is a single loop addressable panel, limited to 32 addressable devices, sensors or modules.
LT-159 allows the connection of up to 159 addressble devices, mainly wireless and a few wired ones dictributed in a maximum of 16 zones.
LT-32 Includes two sounder circuits while LT-159 one sounder circuit.
LT-32 / LT-159 FACP includes Honeywell's Advanced protocol, which maximizes the speed and efficiency of alarm detection, as well as providing maximum
information to the installer. The 4,3" / 109,2 cm (480 x 272 pixel) screen provides an intuitive user interface via its touch screen and menus with quick, and easy system
operation.
The FACP allows configuration from the screen itself.
Due to its size and power, it is the ideal analogue addressable control panel for small sites, where maximum information is required from the installed devices. The
control panel allows the identification of each of the addressable sensors, with different levels of alarm, in order to verify the state of the system, before carrying out
any evacuation or transmission to the alarm receiving station or to the building management system.
Do not try to use the control unit and connected devices without reading this manual!

Fire Alarm Control Panel LT-32 / LT-159
6 M-168.1-SERIE-LT-EN / 08.2022
1.1 Precautions
•
These instructions contain procedures to be followed in order to avoid damage to equipment. It is assumed that the user of this manual has
completed a training course and that he knows the applicable rules that are in force.
•The system and all its components must be installed in an environment with the following conditions:
– Temperature: -5°C … +40°C.
– Humidity: 10 % … 95 % (non-condensing).
•Peripheral devices (sensors, etc.) which are not perfectly compatible with the control unit may cause damage to the control unit or cause the
system to malfunction at any time. It is therefore essential to only use material which is guaranteed by Honeywell and is compatible with its
control units.
•Please consult Honeywell Technical Service if in any doubt.
•This system, like all solid-state components, may be damaged by induced electrostatic voltages: handle the boards by the edges and avoid
touching the electronic components.
•In any case, appropriate earthing ensures a reduction in sensitivity to disturbances.
•Please consult Honeywell Technical Service if you cannot solve installation problems.
•No electronic system will operate if it is not supplied with power.
•If the mains power supply fails, the system will still operate using battery power, but only for a limited period.
•During the system planning phase, consider the authority required to ensure the power supply and batteries are appropriately dimensioned.
•Skilled personnel must periodically check the condition of batteries.
•Disconnect the MAINS and the batteries BEFORE removing or inserting any board.
•Disconnect ALL power supply sources from the control unit BEFORE performing any servicing.
•The control unit and the connected devices (sensors, modules, repeaters, etc.) may be damaged if a new board is inserted or removed, or if the
powered cables are connected.
•The most common cause of malfunctions is inappropriate maintenance.
•Pay particular attention to these aspects from the start of the system planning phase; this will facilitate future servicing and will reduce cost.

Fire Alarm Control Panel LT-32 / LT-159
M-168.1-SERIE-LT-EN / 08.20227
1.2 CE marking and information
This document is a declaration that the products listed below conform to the essential protection requirements of the following European Directives:
•RoHS - Restrictions on the Use of Certain Hazardous Substances in Electrical and Electronic Equipment
•Equipment Directive 2011/65/EU
•Compliance with RoHS 2 - Product does not contain any hazardous substances above the limits designated in the RoHS Directive. Product falls within Category
9 - Monitoring and Control instruments
The EMC Directive 2014/30/EU, by the application of the following EMC Standards:
•EN 61000-6-3:2007 +A1: 2011 (Emissions)
•Electromagnetic compatibility (EMC) Generic emission standard for residential, commercial and light industrial environments.
•EN 50130-4: 2011 +A1: 2014 (immunity)
•EMC Product family standard: immunity requirements for components of fire, intruder and social alarm systems.
•Low Voltage Directive 2014/35/EU
•CPR Directive 305/2011
1.3 National Standards
•This equipment must be installed and operated in accordance with these instructions and the appropriate national, regional and local regulations, specific to the
country and location of the installation. Consult with the appropriate Authority Having Jurisdiction (AHJ) for confirmation of the requirements.
•This equipment must be installed in accordance with these instructions and the appropriate national, regional and local wiring regulations.
This device must be installed and must operate in accordance with these instructions and to the rules in force in the installation place.
EN54
!
EN54-2 13.7
Maximum of 159 Sensors / Manual Call Points per panel.
Additional and updated Informations
The described features, specifications and product related informations in this manual correspond to the date of issue (refer to date on the front page) and
may differ due to modifications and/or amended Standards and Regulations of the System design, Installation and Commissioning.
Updated informations are available for comparison on the MORLEY IAS Fire Systems homepage.

Fire Alarm Control Panel LT-32 / LT-159
8 M-168.1-SERIE-LT-EN / 08.2022
2TRANSPORT DAMAGE INSPECTION
Please check all of the packaging and components for damage before commencing the assembly and installation work. Do not assemble or install visibly damaged
modules and components!
Fig. 1: Checking for damage example with LT-32
It is important to check all supplied equipment for damage before
proceeding with the installation! Before attempting to install the LT-32 /
LT-159 control panel, or other equipment, you must do the following:
1. After removing the FACP, modules and other related equipments from
its packaging, and before you proceed with installing it in its chosen
location, check for any damage that may have occurred while in
transit.
In the unlikely event that any of the supplied FACP items has
been damaged, you MUST NOT install it but return
it to your
supplier, see the following section.
2. If you are satisfied that none of the supplied items has been damaged,
you can now proceed with installation. Refer to the relevant sections
that apply to your installation/configuration requirements.
Danger – Electrical shock!
Remove all power from the FACP before carrying out any installation work!
ESD protection
While handling electronic assemblies, the necessary precautions against electrostatic discharge must be taken.

Fire Alarm Control Panel LT-32 / LT-159
M-168.1-SERIE-LT-EN / 08.20229
WHAT TO DO IF THE EQUIPMENT RECEIVED IS DAMAGED
If you have problems regarding the quality of any supplied order items including the FACP, its ancillaries or items are missing, follow the procedure below.
1. DO NOT continue with the installation but, contact your supplier for advice on what to do next. Similarly, if the product is found to be faulty during installation
contact your supplier immediately.
2. To aid your supplier and the manufacturer, you are requested to quote the manufacturer’s unique batch reference number, which can be found on the packaging
or inside the back box.
3. Note all the details relevant to your complaint, date of receipt, packaging condition and forward it to your supplier.
4. Were the product needs to be returned to your supplier, you are requested to use the original packaging, or suitable anti-static equivalent, wherever possible.
2.1 Pre-installation check list
Before installing the LT-32 / LT-159 FACP you must first ensure that the following criteria have been met. Failure to do this, may not only result in damage to the
equipment but may also cause problems during commissioning operations, or adversely affect its performance:
•DO ensure the operating ambient temperature where the panel is installed is in the range: -5°C … +40°C.
•DO Ensure the panel is installed where the relative humidity is between 5% … 95% non-condensing.
•DO Ensure the panel is installed in an area where solids and liquid entering is not beyond IP 30 rating.
•DO NOT site the panel where there would be restricted access to the inside of the equipment and to the internal cabling and wiring connections points.
•DO NOT locate the panel where there are high levels of vibration or shock.
TRANSIENT PROTECION
This equipment contains transient-protection devices. Although no system is completely immune from lightning transients and interference, to allow its correct
functionality and to reduce susceptibility, this equipment must be earthed correctly.
As with all static sensitive electronic components, this system may operate erratically or can be damaged if subjected to lightning-induced transients.
The use of overhead or outside aerial wiring is not recommended, due to the increased susceptibility to nearby lightning strikes.

Fire Alarm Control Panel LT-32 / LT-159
10 M-168.1-SERIE-LT-EN / 08.2022
3INSTALLATION OVERVIEW
The panel range is designed for mounting onto an internal wall of a protected building, and is not suitable for mounting on outdoor applications.
1. Install the panel enclosure in accordance with the instructions reported in this manual.
2. Bring the field wiring/cables through the recommended entry points on the backbox. Prepare all cable/wiring entry with appropriate fire industry-approved cable
glands and label all field wiring correctly to aid termination.
3. Install a fire industry-approved, AC mains power supply isolator ‘fused spur unit’ close to the FACP. The mains supply cable must be brought into the enclosure,
using a recommended cable entry point.
4. Use this manual for recommendations on how to install batteries inside the enclosure.
5. Once individual cables are checked, make the wiring of each circuit. The battery link is fitted during the commissioning power up stage.

Fire Alarm Control Panel LT-32 / LT-159
M-168.1-SERIE-LT-EN / 08.202211
4SPECIFICATIONS
•4,3'' / 109,2 cm Touch-screen graphical color display, 480 x 272 pixel with back illumination and backlit membrane buttons
•LT-32 manage up to 32 wireless or addressable devices
•LT-159 manage up to 159 addressable devices, mainly wireless
•16 Zones
•Fire and Fault relay NO/NC configurable using related jumpers
•Two sounder circuits in the LT-32 and one sounder circuit in LT-159 (max. load 50 mA each)
•Output delays max. 10 minutes (according to EN 54)
•8 illuminated status icons: Fire, System Fault, General Fault, Disable, Test, Sounder Fault, Power Fault, Power
•4 operating buttons: Reset Panel, Silence Buzzer, Silence Sounders, Evacuate
•The internal panel buzzer, provides an audible alert to the authorized user, to take immediate action whenever the system detects any condition such as a fire or
fault event. Depending on the type of event, the buzzer activates (sounds) using a different tone pattern. The SILENCE BUZZER control button is used to silence
(mute) the internal buzzer after it has switched on following an event. This control is available at all access levels, without a need for PIN code
•AC power supply with different plug options with a maximum rate power of 24 W
•Autonomy in standby and alarm time, in absence of main power, are based on the system configuration. Please refer to Honeywell Loop Calculator for more details
•Panel Is specified for small applications, especially for wireless devices. Max. loop distance: 500 m, cable resistance below 10 Ohm (depending on the loop load
current)
•6 AA-size 2,700 mAh Nickel metal hydride (Ni-MH) battery
•Log and configuration through USB port type B, available in future releases
•Imin= 200 mA
•Imaxa= 500 mA
•Imaxb=1,5 A
•Maximum RiMin = 0,7 Ohm
•Certified EN 54-2 / AC / A1
•Certified EN 54-4 / A1 / A2
•Certified LVD 62.368-1:2014+A11

Fire Alarm Control Panel LT-32 / LT-159
12 M-168.1-SERIE-LT-EN / 08.2022
4.1 Mechanical specifications
Fig. 2: Dimensions
•Dimensions in mm: 206,9 x 126,9 x 42,7 (width x height x depth)
•Upper and lower cable entry for 15 mm cable gland
•Side entries: 3 on each side (23 x 21 mm easy access)
•Central entry prepared for 60 mm universal flush box
•External connections: Removable Terminals for cables 0,5 mm2
•Housing color: LT-32 -> RAL 9002 / LT-159 -> RAL 9005
•Material: ABS flame retardant UL94 class V-0
•Weight: 400 g (incl. 6 batteries)
Fig. 3: Front View
Fig. 4: Back View
Fig. 5: Internal View

Fire Alarm Control Panel LT-32 / LT-159
M-168.1-SERIE-LT-EN / 08.202213
4.2 Electrical specifications
•External power supply: 100 ... 240 Vac, 50 ... 60 Hz
•Power connection terminal: European standard AC. UK connector optional
•Maximum power consumption: 24 W
•Supervised sounder outputs (1 in the LT-159, 2 in the LT-32), each with max. 50 mA
•Max. 500 m distance depending on the cable section and current consumption in alarm
•1 Alarm relay with configurable NC/NO contact
•1 Fault relay with configurable NC/NO contact
4.3 Environmental specifications
•Climate classification: K5 (IEC 721-2-3)
•Temperature range: -5ºC ... 40ºC
•Relative humidity: 5% ... 95% non-condensing
•Control panel protection rating: IP 30 (acc. EN 60529)

Fire Alarm Control Panel LT-32 / LT-159
14 M-168.1-SERIE-LT-EN / 08.2022
5PANEL PARTS – FRONT VIEW
Fig. 6: Front view
LED Indicators
Functional Buttons
Touch Display




Fire Alarm Control Panel LT-32 / LT-159
M-168.1-SERIE-LT-EN / 08.202215
5.1 Panel parts – internal view
9
Fig. 7: Internal view
1
Front Cover
7
Buzzer
2
LED Indicators
8
USB Port B Type
3
Display
9
Batteries Location
4
Fault Contact Jumper
10
Rear Cover
5
Alarm Contact Jumper
11
Cable Entry Holes
6
Terminals
12
Panel Closing Screws

Fire Alarm Control Panel LT-32 / LT-159
16 M-168.1-SERIE-LT-EN / 08.2022
Fig. 8: Power Supply and Batteries
Batteries used within this product may only be replaced by batteries that are in compliance with IEC 60896-11, IEC 60896-21, IEC 60896-22,
IEC 61056-1 and IEC 61056-2 or IEC 62485-2 and made of material with flammability rating V-1 or better.

Fire Alarm Control Panel LT-32 / LT-159
M-168.1-SERIE-LT-EN / 08.202217
6PANEL INSTALLATION
The equipment must be installed indoors, with requirements refer chapter 4.3.
The installation of the panel must be carried out by qualified personnel. The electronic components that make up of the equipment, are vulnerable to physical
damage or electrostatic discharge. It is advisable to take anti-static precautions.
The equipment must be installed on a flat, dry surface at eye level and so that the housing is not deformed.
Use the fastening elements provided or similar ones, adapting them to the type of surface.
The cables must be inserted inside the box through suitable means (cable glands, not provided), avoiding rubbing with the metal edges of the box. Use the
pre-cut opening provided.
The panel must be mounted on a wall at a height of 1,70 m above floor level, such that the display is just above normal eye level.
Fig. 9: Mounting hight

Fire Alarm Control Panel LT-32 / LT-159
18 M-168.1-SERIE-LT-EN / 08.2022
6.1 Surface mounting
The LT-32 / LT-159 FACP can be surface mounted onto a flat wall, using suitable fixtures and fittings (height between 80 … 170 cm). As a general recommendation
for type of wall surfaces, ensure assessments are made and suitable fixtures and fittings are used to hold the panel assembly. The panel backbox is mounted on a
concrete block wall.
Fig.
10: Mark the required hole
STEP 1
According to the figure, mark the required hole
on the wall.
Fig. 11: Drill holes
STEP 2
All fixing point must be used.
Use 50 mm long x 5 mm diameter
screws to secure the backbox on the
wall.
Fig.
12: Mounting backbox
STEP 3
Align the screws on the cover with the keyhole on the back box and lock
the cover onto the backbox.
Fig. 13: Cable Entries
CABLE ENTRIES
•Upper and lower cable entry for 15 mm gland
•Side entry: 3 on each side (21 x 21 mm easy access)
•Central entry prepared for 60 mm universal flush box

Fire Alarm Control Panel LT-32 / LT-159
M-168.1-SERIE-LT-EN / 08.202219
7CABLING
All wiring must comply with local regulations. Also observe the requirements for cabling and interconnection of a fire detection and alarm system. For
information on how to wiring compatible field devices, please refer to the related product documentation.
CABLING INSTRUCTIONS
1. Cables must be brought into the enclosure using the 20 mm cable entry points provided on the top and rear of the panel enclosure. Ensure that all openings in
the enclosure are closed before connecting power to the panel, to prevent inadvertent access to hazardous voltages.
2. Tails must be of sufficient length to connect to the respective terminal at the commissioning stage.
3. Cables that are screened must be terminated at the panel enclosure and earthed at points provided on the top side.
4. The mains supply must be suitably fused and rated as per specifications. Mains supply must have a dedicated path from the site distribution board, with an
over-current protection device rated at a maximum of 16 A.
5. The cable entry points on the extreme right-hand side must be used for mains cable entry. DO NOT route mains cable using any other cable entry points and
ensure that the mains wiring is always separated from the low voltage wiring. It is good practice to always isolate the mains power at the external isolator
equipment, to make the panel safe when performing maintenance tasks, involving the panel’s electronic equipment.
6. All low voltage cables must have a minimum 300 V AC rating.
CABLE GLANDS
Fire-industry-approved, M20 cable glands must be used, made from metal or having flammability class V-1 rating or better.
CABLE TERMINATIONS
This section provides guidance on where to bring cables into the Control Panel enclosure for ease of termination. Ensure the following requirements are met:
1. The mains supply must be brought into the FACP such that the cable path to the mains terminals block is kept as short as possible.
2. All loop and ancillary cable terminations must be brought into the panel enclosure using cable entry points close to their final connection points to respective
terminals, to ensure tails are kept as short as possible. To facilitate this most, modules can be fitted to the required slot location on the module carrier.
3. Some cable entry points must be left unused to provide adequate mains supply input/signal cable segregation.

Fire Alarm Control Panel LT-32 / LT-159
20 M-168.1-SERIE-LT-EN / 08.2022
QUALITY OF CABLE
It is vitally important that good quality cable is used and that correct installation techniques are followed. In general, the following cable installation requirements
must be met:
1. All cable sections must be circular to allow effective cable clamping using the cable glands.
2. The cable must be screened (sheathed) to provide protection against Radio Frequency Interference (RFI) and the screen must be connected to earth at the
control panel (earthing points are provided on the inside enclosure top side).
3. The cable screen must be continuous throughout the loop. Please connect the screen to a ground/earth point.
LOOP CABLE LENGTH
A loop circuit consists of devices such as detectors and modules. The length of a loop circuit cable used can be significantly affected by the loading of the device on
a loop circuit. The length can be up to 500 m and is determined by cable type and loop loading.
RECOMMENDED CABLES
Type of cable: 2 conductors (for their section refer to the table below)
•Twisted narrow pitch (5 / 10 cm)
•Shielded pair cable
•Max. admitted capacity: 0,5 µF
•Max. resistance depending on the current loop in alarm (number of sounder / strobes activated simultaneously): 10 Ohm
CABLE SECTIONS
The proposed sections are referred to the total length of the line (in case of Class A loop and therefore when the loop is closed, it is considered the loop length)
which, however, must not be longer than 500 m and the total resistance of the line must be lower than 10 Ohm.
MINIMUM CABLE SECTIONS
Up to 100 m
2 x 0,5 mm2
Up to 250 m
2 x 1,0 mm
2
Up to 500 m
2 x 1,3 mm
2
(AWG 16)