ModuLaser Modular
Aspirating Smoke Detector
Installation Manual
P/N 04-4001-501-2003-08 • 01FEB19
Copyright
©
2019 UTC Fire & Security. All rights reserved.
Trademarks and
patents
ModuLaser
Other trade names used in this document may be trademarks or
registered
respective products.
Manufacturer
UTC CCS Manufacturing Polska Sp.
Ul. Kolejowa 24.
Authorized EU manufacturing representative:
UTC Fire & Security B.V. Kelvinstraat 7,
Netherlands. Version
REV
Certification
European Union
directives
2004/108/EC (EMC directive).
Security declares
that this device is in compliance with the essential requirements and
other relevant provi
2012/19/EU
cannot be disposed of as unsorted municip al was te in the Europ ean
Union. For proper recycling, return this product to your local supplier
upon the purchase of equivalent new equipment, or dispose of it at
designated collection points. For more information see:
www.recyclethis.info
IEC 60825
incorporates a Class 3B embedded laser which must not be removed
fr
Contact information
For contact information, see
is a trademark of UTC Fire & Security.
trademarks of the manufacturers or vendors of the
Z o.o.
39-100 Ropczyce, Poland.
NL-6003 DH, Weert, The
08
Hereby, UTC Fire &
nsions of Directive 2004/108/EC.
(WEEE directive): Products marked with this symbol
.
-1 This product is a Class I Laser product. The unit
om the detector.
https://firesecurityproducts.com/.
Content
Important information ii
Chapter 1 Introduction 1
System overview 2
Module overview 5
Chapter 2 Installation 11
Electrical safety 12
Installation 12
Connections 20
Chapter 3 Configuration and Commissioning 35
Introduction 36
Access level 1 user operation 41
Access level 2 user operation and configuration 41
Access level 3 user operation and configuration 53
Access level 4 user operation and configuration 70
Commissioning 73
Chapter 4 Maintenance and troubleshooting 79
Maintenance 80
Troubleshooting 83
Chapter 5 Technical specifications 87
Appendix A APIC installation 91
Appendix B Regulatory information 93
Index 96
ModuLaser Modular Aspirating Smoke Detector Installation Manual i
Important information
Introduction
This is the installation and operation manual for the ModuLaser Modular
Aspirating Smoke Detector. Read these instructions and all related
documentation entirely before installing or operating this product.
Limitation of liability
To the maximum extent permitted by applicable law, in no event will UTCFS be
liable for any lost profits or business opportunities, loss of use, business
interruption, loss of data, or any other indirect, special, incidental, or
consequential damages under any theory of liability, whether based in contract,
tort, negligence, product liability, or otherwise. Because some jurisdictions do not
allow the exclusion or limitation of liability for consequential or incidental
damages the preceding limitation may not apply to you. In any event the total
liability of UTCFS shall not exceed the purchase price of the product. The
foregoing limitation will apply to the maximum extent permitted by applicable law,
regardless of whether UTCFS has been advised of the possibility of such
damages and regardless of whether any remedy fails of its essential purpose.
Installation in accordance with this manual, applicable codes, and the instructions
of the authority having jurisdiction is mandatory.
While every precaution has been taken during the prepar ati on of this man ual to
ensure the accuracy of its contents, UTCFS assumes no responsibility for errors
or omissions.
Product warnings and disclaimers
THESE PRODUCTS ARE INTENDE D FOR SALE TO AND INSTALLATION BY
QUALIFIED PROFESSIONALS. UTC FIRE & SECURITY CANNOT PROVIDE
ANY ASSURANCE THAT ANY PERSON OR ENTITY BUYING ITS
PRODUCTS, INCLUDING ANY “AUTHO RIZED DEALER” OR “AUTHORIZED
RESELLER”, IS PROPERLY TRAINED OR EXPERIENCED TO CORRECTLY
INSTALL FIRE AND SECURITY RELATED PRODUCTS.
For more information on warranty disclaimers and product safety information,
please check https://firesecurityproducts.com/policy/product-warning/ or scan the
QR code:
ii ModuLaser Modular Aspirating Smoke Detector Installation Manual
Advisory messages
Advisory messages alert you to conditions or practices that can cause unwanted
results. The advisory messages used in this document are shown and described
below.
WARNING: Warning messages advise you of hazards that could result in injury
or loss of life. They tell you which actions to take or to avoid in order to prevent
injury or loss of life.
Caution: Caution messages advise you of possible equipment damage. They tell
you which actions to take or to avoid in order to prevent damage.
Note: Note messages advise you of the possible loss of time or effort. They
describe how to avoid the loss. Notes are also used to point out important
information that you should read.
ModuLaser Modular Aspirating Smoke Detector Installation Manual iii
iv ModuLaser Modular Aspirating Smoke Detector Installation Manual
Chapter 1
Introduction
Summary
This chapter provides an introduction to your detector, the main controls, and the
indicators.
Content
System overview 2
Introduction 2
Clusters 3
Connectivity 3
ClassiFire 3
Software 4
Module overview 5
Display modules 5
Detector module 7
TFT display, controls, and indicators 8
ModuLaser Modular Aspirating Smoke Detector Installation Manual 1
Chapter 1: Introduction
System overview
Introduction
The ModuLaser Modular Aspirating Smoke Detector (ASD) is a highly
sophisticated next generation high sensitivity smoke detection system that
provides all the benefits of air sampling high sensitivity smoke detection,
including very early warning.
The system comprises the following:
• A backplane
• A minimum, standard, or command display module
• A detector module
See “Module overview” on page 5 for more inf ormation on each module.
Figure 1: Display and detector modules
1. Display module
2. Detector module
2 ModuLaser Modular Aspirat i ng Smoke Detector I nst allat i on Manual
Chapter 1: Introduction
Clusters
Each ModuLaser high sensitivity smoke detection system consists of a group of
modules known as a cluster.
A cluster consists of one minimum or standard display module and from one
(minimum) to eight (maximum) detector modules.
Caution: A command display module cann ot r epl ace or substi t ut e a minim um or
standard display module in a cluster configuration.
The display module is connected to the detector modules via the SenseNET+
RS-485 interface. The display module can be positioned anywhere within the
cluster.
The display module and up to four detector modules can be installed in a single
location (non-distributed cluster) or in separate locations (distributed cluster).
Additional detector modules in the same cluster must be installed in a separate
location. See “Connecting modules” on page 21 for more information on cluster
connections.
Each device in a cluster is identified by a unique 7-bit address in the range 1 to
127. Multiple clusters can be connected to create a SenseNET network.
Connectivity
The following network interfaces are used:
• An APIC card is used for communication between the aspirating smoke
detector and a fire alarm control panel via an addressable loop.
• SenseNET+ is used for communication between display modules and
detector modules in the same cluster.
• SenseNET is used for communication between a command display module,
multiple ModuLaser clusters, and other compatible ASD units.
ClassiFire
ClassiFire is the patented artificial intelligence system for aspirating smoke
detectors that continually monitors the environment and internal contamination
and automatically adjusts sensitivity to the optimum level.
ClassiFire automatically adjusts sensitivity to suit day/night levels with no need
for external input.
ClassiFire automatically sets up the detector to the normal working environment
so the detector sensitivity is optimized for its surroundings.
ModuLaser Modular Aspirating Smoke Detector Installation Manual 3
Chapter 1: Introduction
The ClassiFire automatic calibration process is as follows:
1. FastLearn: This stage lasts approximately 15 minutes. During FastLearn the
detector is not fully operational (accurate detection is not guaranteed).
2. Intermediate learn: This stage lasts approximately 24 hours. During
intermediate learn the detector is operational but is still fine tuning the
detection algorithm.
3. Normal: Normal indicates that initial environmental learning has ended and
that the detector is operating normally.
Note: Demo mode skips the intermediate learn mode and jumps from FastLearn
to normal mode. While active, Demo mode is indicated by the Warning LED and
on the display module LCD.
Software
The following software applications are available:
• PipeCAD: Models and verifies the performance of the pipe network design.
All pipework designs must be validated using PipeCAD.
• Remote: Configures modules during installation and during system
maintenance.
Contact your local distributo r for more details on these applications.
4 ModuLaser Modular Aspirat i ng Smoke Detector I nst allat i on Manual
Chapter 1: Introduction
Module overview
The product range includes three display modules and a detector module.
Note: Display modules and detector modules also incorporate a bac kpl ane (for
inputs, outputs, and field wiring, etc.). See Chapter 2 “Installation” on page 11 for
more information on the backplane.
Figure 2: Module overview
1. Minimum display module
2. Standard or command display module
3. Detector module
Display modules
The following display modules are available.
Minimum display module
The minimum display module provides LED status indicators only – it has no TFT
display or user controls. LED status indicators display the status of detector
modules in the same cluster.
The module provides connections to integrate the cluster into a Sen seNET
network. A PC connection is provided for configuring and monitoring the module
and associated detect or modules .
ModuLaser Modular Aspirating Smoke Detector Installation Manual 5
Chapter 1: Introduction
1
2
3
4
5. Fire alarm LED
Standard display module
The standard display module provides LED status indicators, as well as a colour
TFT display and user controls. LED status indicators display the status of
detector modules in the same cluster. The TFT display provides additional status
information and con fig ur ati on m enus .
The module provides connec ti ons to integrate the cluster into a SenseNET
network. User controls and a PC connection are provided for configuring and
monitoring the module and as soc iated detector modules.
Command display module
The command display module provides LED status indicators, as well as a colour
TFT display and user controls.
The command display module is used as a central control and monitoring point
for detectors in a SenseNET network. The command display module is
compatible with ModuLaser clusters and legacy ASD devices compatible with
SenseNET.
User controls and a PC connection are provided for configuring and monitoring
any device connected to the SenseNET network.
Figure 3: Display module LED indicators
. Laser fault LED
. Filter fault LED
. Flow fault LED
. Prealarm LED
Note: The minimum display module does not include the navig ati on and
configuration controls.
6 ModuLaser Modular Aspirat i ng Smoke Detector I nst allat i on Manual
6. General fault LED
7. Warning LED
8. Power LED
9. Navigation and configuration controls
Chapter 1: Introduction
1
2. General fault LED
4. Power LED
Display module interfacing
All display modules provide the following connectors:
• USB type A (host)
• USB type B (device)
• APIC
Detector module
The detector module is an aspirating smoke detector and must be used w it h
either a minimum or standard display module. It consists of a fan, a dust filter,
and a laser head with the corresponding sensors to measure air flow,
temperature, and obscur at ion.
The detector module uses the ClassiFire algorithms to determine alarm
conditions and keeps a record of event logs and samples.
Up to eight detector modules can be connected to a minimum or standard display
module to form a cluster.
Figure 4: Detector module LED indicators
. Prealarm and Fire alarm LED
3. Warning LED
ModuLaser Modular Aspirating Smoke Detector Installation Manual 7
Chapter 1: Introduction
1
2
3
4
5
6. Current warning counter
TFT display, controls, and indicators
TFT display and controls
The TFT display and controls are shown below.
Figure 5: TFT display and controls
. Address
. System date (home screen only)
. System time (home screen only)
. Current alarm counter
. Current fault counter
8 ModuLaser Modular Aspirat i ng Smoke Detector I nst allat i on Manual
7. F1, F2, and F3 TFT display soft keys
(linked to F1, F2, and F3 TFT buttons)
8. Enter button
9. Navigation controls (up, down, left, right)
10. F1, F2, and F3 buttons (linked to F1, F2,
and F3 TFT display soft keys)
Chapter 1: Introduction
LED
Notes:
If configuring a detector, the address displayed is the detector address. If not, it is
the display address.
The minimum display module does not include the TFT display, Enter button,
navigation controls, or F1-F3 functi on buttons shown above.
LED indications
The LED indications are shown below.
Table 1: LED indications
Colour Indication Description
Yellow Laser fault [1] A steady LED indicates a laser fault in one or more
Yellow Filter fault [1] A steady LED indicates a filter fault in one or more
detector modules in the cluster (minimum or
standard display) or network (command display).
detector modules in the cluster (minimum or
standard display) or network (command display).
Yellow Flow fault [1] A steady LED indicates a flow fault or a fan fault in
Red Prealarm [1]
Red Fire alarm A steady LED on a display module indicates a fire
Yellow General fault A steady LED on a display module indicates a
one or more detector modules in the cluster
(minimum or standard display) or network
(command display).
A steady LED indicates a prealarm condition in one
or more detector modules in the cluster (minimum
or standard display) or network (command display).
alarm condition in one or more detector modules in
the cluster (minimum or standard display) or
network (command display).
A steady LED on a detector module indicates a fire
alarm condition for the detector.
A flashing LED on a detector module indicates a
prealarm condition for the detector.
general fault condition in one or more modules in
the cluster (minimum or standard display) or
network (command display).
A steady LED on a detector module indicates a
general fault condition for the detector.
ModuLaser Modular Aspirating Smoke Detector Installation Manual 9
Chapter 1: Introduction
LED
[1] Display modules only.
Colour Indication Description
Yellow Warning A steady or flashing LED indicates the following:
Green Power A steady LED indicates that the module is powered
A steady LED indicates that detection is aborted
due to a fault (detector cover removed, fan motor,
filter removed, or critical temperature), that there is
a flow high/low range fault, that the module is
disabled, or that the module is in power save mode.
A fast flashing LED indicates that at least one
detector module is in FastLearn mode, that the
module is starting up, or that pipe calibration is in
process.
A slow flashing LED indicates that one or more
devices or features are in test mode or that a
detector is in demo mode.
up correctly.
Note: If alarms or faults are latched, then an al arm or fault indication remains
active until a system reset, even if the condition that caused the indication has
ended. If alarms or faults are not latched, the indication disappears when the
corresponding condition ends.
10 ModuLaser Modular Aspirating Smoke Detector Installation Manual
Chapter 2
Installation
Summary
This chapter provides detailed installation and connection information for your
detector.
Caution: This product must be installed and maintained by qualified personnel
adhering to all local or national installation requirements and any other applicable
regulations.
Content
Electrical safety 12
Installation 12
Overview 12
Module and PCB layout 14
Backplane installation 17
Connections 20
Recommended cables 20
Connecting modules 21
Connecting pipes 32
Connecting to a PC 33
ModuLaser Modular Aspirating Smoke Detector Installation Manual 11
Chapter 2: Installation
Electrical safety
WARNING: Electrocution hazard. To avoid personal injury or death from
electrocution, remove all sources of power and allow stored energy to discharge
before installing or removing equipment.
Caution: Equipment damage hazard. This product is sensitive to electrostatic
discharge (ESD). To avoid damage, follow accepted ESD handling procedures.
Installation
Overview
To install the detection system, follow these steps:
1. Fix the backplane to the wall.
See “Installing the backplane” on page 17.
2. Connect all field wiring to the backplane.
See “Connections” o n pag e 20.
3. Place the display or detector module (without the cover) onto the backplane.
See “Installing the display and detector modules” on page 31.
4. Install piping.
See “Connecting pipes” on page 32.
5. Place the front cover onto the display or detector module.
12 ModuLaser Modular Aspirating Smoke Detector Installation Manual
Chapter 2: Installation
DO
DO ensure that the power and signal cables
are correctly connected before powering up.
Incorrect connections may damage the
module.
DO
for interconnection.
DO
connections are firmly tightened.
DO place sampling points so that the detector
module is able to detect smoke at the earliest
opportunity.
DO ensure that th
is not impeded and is in an area with the
same atmospheric pressure as the sample
pipes (either by placing the detector module
physically in the protected area or by leading
a pipe from the detector module exhaust to
the protected
DO ensure that the ambient conditions
(humidity, temperature) of the protected area
are suitable for the module.
DO set the appropriate ClassiFire alarm factor
for the area to be protected.
DO set the appropriate alarm level for the
area to be prot
DO set the appropriate fan speed for the area
to be protected.
DO set the module addresses correctly to
avoid duplicate addresses.
DO ensure that the display and detector
modules are secured to the backplane.
DO ensure that all front covers are
the modules.
programmable
may damage the detector
General guidelines
Follow these general guidelines to ensure correct placement, connection, and
configuration of your product.
Table 2: Installation guidelines
DON’T
ensure that an appropriate cable is used
ensure that all screws for wiring
e detector module exhaust
area).
ected.
DON’T drop the detector or display modules.
DON’T install detector and display modules in
damp or exposed areas.
DON’T remove or connect PCBs when the
module is powered up.
DON’T reuse dust filter cartridges once they
are removed.
DON’T attempt to adjust or alter detector
settings other than via the userfunctions.
DON’T place the modules close to any
equipment that may generate high radio
frequency levels (such as radio alarms) or
units generating high levels of electrical
energy (such as large electric motors or
generators).
DON’T install the module in hard to reach
areas or so close to other equipment that
access and maintenance of the module is
difficult.
DON’T use excessive force when fitting
sampling pipes (this
module).
DON’T overtighten the mounting screws.
ModuLaser Modular Aspirating Smoke Detector Installation Manual 13
secured to
Chapter 2: Installation
1
2
3
4
5
6
7. I/P2 input connector
Module and PCB layout
Backplane
The backplane is used to distribute power and communications to all modules in
the cluster. It also provides connections for inputs, outputs, and to legacy
devices. All field wiring is connected to the backplane via the cable knockouts on
the top, bottom, or back of the housing.
Figure 6: Backplane layout
. Cable glands (not supplied)
. O/P2 and O/P3 output connectors
. CH1 and CH2 SenseNET connectors for
bus or loop configuration
. J1 display and detector module connector
. Address DIP switch
. J5 SenseNET+ connector for adjacent
backplanes
Note: The SenseNET and APIC connectors are only used in display modules.
14 ModuLaser Modular Aspirating Smoke Detector Installation Manual
8. Power supply connector
9. J3 SenseNET+ connector for adjacent
backplanes
10. APIC connector (used for connecting an
addressable loop)
11. I/P1 input and O/P1 output connectors
12. SenseNET+ connectors for bus or loop
configuration
13. Rear cable knockouts
Chapter 2: Installation
1
2
3. USB type B connector
Display module
Figure 7: Display module layout
. USB type A connector
. RJ11 connector (see note below)
4. Ethernet connector (see note below)
5. Cover sensor
Note: RJ11 and Ethernet connections are not supported at this time.
ModuLaser Modular Aspirating Smoke Detector Installation Manual 15
Chapter 2: Installation
1
2
3
4. User interface PCBA
Detector module
Figure 8: Detector module layout
. Exhaust pipe (outlet)
. Sampling pipe (inlet)
. Fan
5. Filter cover
6. Laser cover
7. Detector module installed at 180 degrees
Note: The detector module may also be installed onto the backplane at
180 degrees to enable pi pe entr y from below (as shown on the right in Figure 8
above). There is no change to the installation orientat ion of the backplane.
16 ModuLaser Modular Aspirating Smoke Detector Installation Manual
Chapter 2: Installation
1
2
3. DIN rail
Backplane installation
Installing the backplane
Install the backplane onto a DIN rail or directly onto the wall using mounting
screws. If the backplanes are mounted next to each other, use joining clips to
secure them to each other (see Figure 11 on page 19).
To install the backplane onto a DIN rail:
1. Secure the DIN rail to the wall using appropriate fasteners for the mounting
surface.
2. Hang the backplane onto the DIN rail using the mounting hooks on the back
of the unit (see Figure 9 below).
3. Using a screwdriver, push both of the locking clips up to lock the unit to the
rail.
Figure 9: Installing the backplane onto a DIN rail
. Backplane (rear view)
. Mounting hooks
ModuLaser Modular Aspirating Smoke Detector Installation Manual 17
4. Backplane (front view)
5. Locking clips
Chapter 2: Installation
To install the backplane onto a wall:
1. Hold the backplane to the wall at the required installation height and mark the
position of the keyhole screw slot (see Figure 10 below).
2. Remove the backplane from the wall. Drill a hole in the mounting surface
where the keyhole position was marked and insert an M4 wall plug.
3. Insert a screw into the keyhole screw slot and hang the backplane onto this
screw.
4. Align the backplane (ensuring that it is level) and mark the position of all other
fixing holes at the holding screw slots
5. Remove the backplane from the wall, and then drill and plug the remaining
fixing holes
6. Replace the backplane , check al ignment, and then tighten all fixing screws.
Figure 10: Installing the backplane onto a wall
1. Keyhole screw slot
2. Holding screw slots
18 ModuLaser Modular Aspirating Smoke Detector Installation Manual
Chapter 2: Installation
Figure 11: Using joini n g clips
1. Joining clips (front view)
2. Joining clips (side view)
3. Release mechanism for joining clip or protective cover
WARNING: To avoid personal injury, take care when inserting or removing the
joining clips or protective covers from the side of the backplane. To remove these
items, place the backplane face down on a solid surface and use a screwdriver to
push the release mechanism, shown in Figure 11 above (this needs to be done
before the backplane is installed onto the wall).
ModuLaser Modular Aspirating Smoke Detector Installation Manual 19
Chapter 2: Installation
Cable
Power
System cable
Data cable
USB cable
[1] Observe maximum length to comply with the EMC requirements of EN 54-20.
Connections
Recommended cables
Recommended cables for optimal system performance are shown in the table
below.
Table 3: Recommended cables
Cable requirements Maximum cable length
cable 3 × 1.5 mm2 30 m (98.4 ft.) [1]
Up to 2.5 mm2 (13 AWG) N/A
RS-485 data cable up to 2.5 mm2 1.2 km [0.75 mi.]
Standard USB cable with A-B connectors 3 m (9.84 ft.) [1]
Other types of cable may be used subject to site-specific electromagnetic
interference (EMI) conditions and installation testing.
Securing cables
Use cable glands to ensure clean and secure connections. All cables should be
fed through the cable knockouts on the top, bottom, or back of the housing and
secured to eliminate movement.
20 ModuLaser Modular Aspirating Smoke Detector Installation Manual
Chapter 2: Installation
Connecting modules
Connector overview
Figure 12: Backplane PCB conne ctors (top)
Figure 13: Backplane PCB conne ctors (bottom)
ModuLaser Modular Aspirating Smoke Detector Installation Manual 21
Chapter 2: Installation
Connector
I/P1
O/P1
SNET+ CH1
SNET+ CH2
APIC IN
APIC OUT
SenseNET CH1
SenseNET CH2
J3
J5
PSU
[
[
[3] Used for connecting an addr es sable loop.
Table 4: Backplane PCB connectors
PIN Description
, I/P2 - Input (negative)
+ Input (positive)
, O/P2, O/P3 C Output (common)
NC Output (normally closed)
NO Output (normally open)
[1] A SenseNET+ channel 1
B SenseNET+ channel 1
S SenseNET+ channel 1 (shield)
[2] A SenseNET+ channel 2
B SenseNET+ channel 2
S SenseNET+ channel 2 (shield)
[3] + APIC in (positive)
- APIC in (negative)
S APIC in (shield)
[3] + APIC out (positive)
- APIC out (negative)
S APIC out (shield)
A SenseNET channel 1
B SenseNET channel 1
S SenseNET channel 1 (shield)
A SenseNET channel 2
B SenseNET channel 2
S SenseNET channel 2 (shield)
Ribbon cable connector to connect to modules
installed to the left of the module
Ribbon cable connector to connect to modules
installed to the right of the module
G Power supply (earth)
- Power supply (negative)
+ Power supply (positive)
1] If used, end-of-line termination is required for the unused J3 connector.
2] If used, end-of-line termination is required for the unused J5 connector.
22 ModuLaser Modular Aspirating Smoke Detector Installation Manual
Chapter 2: Installation
Cluster type
Non
Distributed
Hybrid
Connecting modules in a cluster
Communication between modules within a cluster is accomplished using
SenseNET+.
A cluster consists of a minimum or standard display module and up to eight
detectors. The display module can be installed anywhere within the cluster.
Caution: A command display module cannot replace or substitute a minimum or
standard display module in a cluster configuration.
There are three types of cluster, as shown in the table below. Connections
depend on the type of cluster use d.
Description
-distributed This cluster type consists of a minimum or standard display module and
up to four detector modules installed in the same location (next to each
other).
This cluster type consists of a minimum or standard display module and
up to eight detector modules, with each module installed in a different
location (not next to each other).
This cluster type consists of a minimum or standard display module and
up to eight detector modules. Some of the modules are installed in the
same location (non-distributed), others are distributed.
Connecting a non-distributed cluster
Connect a non-distributed cluster (a minimum or standard display module and up
to four detector modules) using the supplied ribbon cable and the J3 and J5
connectors on the backplane PCB, as shown below.
In this installation type, the ribbon cable also distributes the power supply within
the cluster (see “Connecting the power supply” on page 26).
Figure 14: Non-distributed cluster
1. Ribbon cable
Note: End-of-line termination is not required for unused J3 and J5 connectors in
this cluster type.
ModuLaser Modular Aspirating Smoke Detector Installation Manual 23
Chapter 2: Installation
Connecting a distributed cluster
Connect a distributed cluster (a minimum or standard display module and up to
eight detector modules ) , using the SNET+ connectors on the backplane PCB, as
shown below. The maximum cable length between modules is 1,200 m
(4,000 ft.).
In this installation type, each module requires a power supply (see “Connecting
the power supply” on page 26) and an end-of-line termination to be installed onto
the unused J3 and J5 connectors on the backplane PCB.
Figure 15: Distributed cluster
1. End-of-line termination (required for all unused J3 and J5 connectors in this cluster type)
24 ModuLaser Modular Aspirating Smoke Detector Installation Manual