Janus JFS-A1 User manual

JFS-A1 Installation, Operation,
& Instruction Manual
JFS-A1 Releasing Panel
Issued August 27, 2012
DOC230 INITIAL RELEASE

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JFS-A1 INSTALLATION, OPERATION, AND INSTRUCTION MANUAL
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Revised: N/A
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Table of Contents
Section 1: Introduction..............................................................................................................................1
Purpose of This Manual.............................................................................................................................1
System Overview.......................................................................................................................................1
System Features.........................................................................................................................................1
P-Link Accessories...............................................................................................................................2
SLC Loop Accessories..........................................................................................................................2
Addressable Sensors ............................................................................................................................2
Addressable Modules...........................................................................................................................3
How to Use this Manual ............................................................................................................................3
Common Terminology............................................................................................................................... 3
Section 2: Before You Start Installation...................................................................................................4
System Specications ................................................................................................................................4
Environmental Specications .................................................................................................................... 4
System Congurations / Appliances ..........................................................................................................4
Electrical Specications.............................................................................................................................5
System Size Specications ........................................................................................................................5
Main Board Wiring Specications.............................................................................................................5
Circuit Separation................................................................................................................................5
Wiring Types.........................................................................................................................................6
Cabinet Dimensions...................................................................................................................................6
Cabinet Wiring Connections......................................................................................................................7
Battery Circuit Calculations.......................................................................................................................7
Battery Calculation Worksheets.................................................................................................................8
SLC Current Draw Worksheet...................................................................................................................9
Isolator Device Load Calculation ............................................................................................................ 10
Scenario 1: Class A Loop – Isolated Devices Conguration.............................................................10
Scenario 2: Class B Loop – Isolated Branch Conguration .............................................................11
Battery Connections................................................................................................................................. 12
Main Supply Circuit.................................................................................................................................12
Section 3: Installation..............................................................................................................................13
Signaling Line Circuit (SLC) Installation................................................................................................ 13
SLC Wiring Requirements..................................................................................................................13
Class B, Style 4 Wiring Conguration ...............................................................................................13
Class A, Style 6 Wiring Conguration ...............................................................................................14
Class A, Style 7 Wiring Conguration ...............................................................................................15
Connecting Analog Detectors ..................................................................................................................15
Connecting Addressable Modules............................................................................................................16
Conventional Initiating Zones (CIZM-4) Class A..............................................................................16
Conventional Initiating Zones (CIZM-4) Class B..............................................................................16
Miniature Contact Module (MCM)....................................................................................................17
Single Contact Module – 4 inch Mount (SCM-4) ..............................................................................17
Dual Contact Module – 4 inch Mount (DCM-4) ...............................................................................17
Twin Relay Module – 4 inch mount (TRM-4).....................................................................................18
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Monitored Output Module – 4 inch mount (MOM-4)........................................................................18
Connecting Analog Sounder Base (ASB)...........................................................................................19
Connecting Analog Relay Base (ARB)...............................................................................................20
Addressing SLC Devices .........................................................................................................................21
Notication Appliance Circuits Installation.............................................................................................22
NAC Wiring........................................................................................................................................22
NAC Maximum Wiring Impedance Formula .....................................................................................22
NAC Wiring Congurations ..............................................................................................................22
NAC as Releasing Device Circuit............................................................................................................24
Maximum Wire Impedance Formula..................................................................................................24
I/O Circuit Conguration.........................................................................................................................25
I/O Circuits as Inputs.........................................................................................................................25
I/O Circuits as Outputs ......................................................................................................................25
I/O Maximum Impedance Formula....................................................................................................25
Reverse Polarity Communication Line Circuit........................................................................................ 26
Municipal Box Connection......................................................................................................................27
Relay Output Wiring................................................................................................................................27
CA-6075 Class A Expander Installation ..................................................................................................28
P-Link Devices.........................................................................................................................................29
Conguration Characteristics ...........................................................................................................29
Maximum Wire Resistance Formula..................................................................................................29
P-Link Addresses................................................................................................................................30
Installing Remote Annunciators (RA-6500R and RA-6075R) ................................................................31
Setting Addresses ...............................................................................................................................31
Installing the DACT.................................................................................................................................32
Dip Switch Location...........................................................................................................................33
Section 4: Operation................................................................................................................................34
Control Panel Basic Operation.................................................................................................................34
LCD Display ......................................................................................................................................34
Menu Navigation Keys.......................................................................................................................35
Numeric Keypad.................................................................................................................................35
Function Pushbuttons ........................................................................................................................35
Status LEDs........................................................................................................................................36
Control Panel Menu Tree.........................................................................................................................37
Section 5: Programming..........................................................................................................................38
Programming Options..............................................................................................................................38
Programming Overview...........................................................................................................................41
The Programming Cycle..........................................................................................................................41
Software Installation................................................................................................................................41
LEARN Programming .............................................................................................................................42
Connecting the Computer and Panel........................................................................................................42
Transferring Data.....................................................................................................................................44
Uploading from Panel to Computer...................................................................................................45
Downloading Conguration File to Panel ...............................................................................................46

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Enable Remote Access .......................................................................................................................46
File New.............................................................................................................................................46
File Save / Save As.............................................................................................................................47
Audit Errors .......................................................................................................................................47
Uploading History Events & Detector (Sensitivity) Status Reports........................................................49
History Reports..................................................................................................................................49
Detector Sensitivity Status Reports....................................................................................................50
Printing Reports.................................................................................................................................51
Panel Software Overview ........................................................................................................................52
Window Regions / Areas.....................................................................................................................52
Program Icons....................................................................................................................................53
Programming Functions Overview..........................................................................................................54
Remote Access Code................................................................................................................................55
User Name / Password.......................................................................................................................55
General System Functions ....................................................................................................................... 56
Job Details.........................................................................................................................................56
General Options.................................................................................................................................56
Day/Night Sensitivity Mode and Holiday Scheduling........................................................................57
Users..................................................................................................................................................58
System E-mail Functions .........................................................................................................................58
P-Link E-mail Notication Requirements ..........................................................................................60
Connecting the Panel to a Network...................................................................................................60
E-mail Report Programming .............................................................................................................61
E-mail Sent from Panel......................................................................................................................61
E-mail Report Requested from PC.....................................................................................................62
Receiving E-mail Status Reports........................................................................................................64
System Programming............................................................................................................................... 66
Mapping Zones Overview..................................................................................................................66
Single Zones.......................................................................................................................................66
Multiple Zones ...................................................................................................................................66
Mapping Terminology........................................................................................................................67
Zone Types / Styles.............................................................................................................................67
Zone Attributes...................................................................................................................................68
Releasing Zone Attributes..................................................................................................................70
Creating Zones...................................................................................................................................70
Conguring Zones..............................................................................................................................71
Conguring Points.............................................................................................................................71
NAC Functions...................................................................................................................................72
SLC Functions....................................................................................................................................73
Adding Points to Zones......................................................................................................................76
Group by Area....................................................................................................................................78
Cross Zone Congurations ......................................................................................................................79
Releasing Zone Congurations................................................................................................................ 80
Releasing Fields.................................................................................................................................80

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Single Interlock (One Count) Releasing Application.........................................................................82
Cross Zone / Two Count (Double Interlock) Releasing Application..................................................82
Cross Zone Releasing Application with Abort Switch .......................................................................83
Programming Modules.............................................................................................................................84
DACT (UD-1000)...............................................................................................................................84
CA-6075 Class A Converter Module .................................................................................................86
Remote Annunciators (RA-6500R and RA-6075R)............................................................................87
Section 6: PSN-1000 / PSN-1000(E) – Installing, Operating & Programming...................................88
Board Specications ................................................................................................................................ 88
Cabinet Descriptions................................................................................................................................88
Visual Indicators................................................................................................................................88
Environmental Specications .................................................................................................................. 88
Electrical Specications...........................................................................................................................88
Wiring Specications...............................................................................................................................88
Circuit Separation..............................................................................................................................88
Wiring Types.......................................................................................................................................89
Cabinet Dimensions.................................................................................................................................89
Cabinet Installation..................................................................................................................................90
Cabinet Wiring Connections....................................................................................................................91
Rechargeable Battery Circuit...................................................................................................................92
Battery Circuit Calculation......................................................................................................................92
PSN-1000/PSN-1000(E) Battery Calculation Worksheet........................................................................93
Notication Appliance Circuits (NACs)..................................................................................................94
NAC Wiring........................................................................................................................................94
NAC Wiring Congurations...............................................................................................................94
Input Circuits ........................................................................................................................................... 96
Conguration Characteristics ...........................................................................................................96
Wiring to Control Panel..............................................................................................................................97
Repeater Output .......................................................................................................................................98
Conguration Characteristics ...........................................................................................................98
Maximum Wire Resistance Formula..................................................................................................98
Municipal Box Connection......................................................................................................................99
Conguration Characteristics ...........................................................................................................99
Relay Outputs...........................................................................................................................................99
PSN-1000/PSN-1000(E) Operations .....................................................................................................100
Status LEDs......................................................................................................................................100
PSN-1000/PSN-1000(E) Programming.................................................................................................101
Adding a Power Supply....................................................................................................................101
Deleting a Power Supply .................................................................................................................102
Section 7: IP Communication ...............................................................................................................103
Programming the IP Communicator...................................................................................................... 104
IP Reporting Accounts.....................................................................................................................104

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Appendix A: Basic Operating Instructions......................................................................................... A-1
Appendix B: Modem Connectivity Setup............................................................................................B-1
Appendix C: System Maintenance and Testing..................................................................................C-1
Acceptance Test................................................................................................................................C-1
Periodic Testing and Service............................................................................................................C-1
Operational Checks .........................................................................................................................C-1
AC Fuse............................................................................................................................................C-1
Battery Maintenance........................................................................................................................C-2
Replacement and Testing Recommendations...................................................................................C-2
Proper Handling / First Aid Procedures..........................................................................................C-2
Appendix D: PSN-1000/PSN-1000(E) Maintenance and Testing......................................................D-1
Appendix E: Compatible Devices Table...............................................................................................E-1
Appendix F: Troubleshooting Tips.......................................................................................................F-1
Appendix G: Control Panel Menu.......................................................................................................G-1

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Revision Description of Change Date
--- Initial Printing 8/27/2012
Revision History

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Preface
This manual is intended for use with the Janus Fire Systems® JFS-A1 Releasing Control Panel. Those who install,
operate, program, or service this panel should read this entire manual.
All design, implementation, and maintenance of the Janus Fire Systems® JFS-A1 Releasing Control Panel must
be performed in compliance with the National Fire Protection Association (NFPA) 70 - The National Electrical
Code, NFPA 2001 - Standard on Clean Agent Fire Extinguishing Systems, NFPA 12 - Standard on Carbon Dioxide
Extinguishing Systems, NFPA 13 - Standard for the Installation of Sprinkler Systems, NFPA 16 - Standard for the
Installation of Foam-Water Sprinkler and Foam-Water Spray Systems, NFPA 72 - The National Fire Alarm Code,
and the guidelines outlined in this manual.
Janus Fire Systems® reserves the right to revise and improve its products as it deems necessary without prior
notication. This manual describes the state of Janus Fire Systems® products at the time of its publication and may
not reect those products at all times in the future.
All references to Codes or Standards in this manual refer to the latest edition of that Code or Standard unless
otherwise indicated.
The contents of this manual may not be reproduced in any form without the express written consent of Janus Fire
Systems.
Copyright © 2012 Janus Fire Systems. All Rights Reserved. Janus Fire Systems® is a registered trademark of Janus Fire Systems.
Janus Fire Systems
1102 Rupcich Drive
Millennium Park
Crown Point, IN 46307
TEL: [phone] FAX: [phone]
e-mail: info@janusresystems.com · www.janusresystems.com

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SECTION 1: INTRODUCTION
e Model JFS-A1 is a listed and approved, microprocessor based addressable re control panel and complies with
UL-864, NFPA-12, NFPA-12A, NFPA-13, NFPA-15, NFPA-16, NFPA-17, NFPA-17A, NFPA-72, NFPA-750,
NFPA-2001 and CSFM.
e JFS-A1 system software is compatible with Windows XP, Windows Vista and Windows 7 Operating Systems;
additionally, the latest version of Microsoft .NET Framework is required. e system software incorporates
conventional shortcuts, and provides great exibility in eectively programming individual or groups of devices.
Operational Mode behavior can be customized, including the four (4) on-board circuits (NACs 1 and 2, and
Input/Outputs 1 and 2). is exibility enables conguration of system points to maximize protection throughout
controlled site(s).
Purpose of This Manual
is manual is intended to assist in the installation and programming the JFS-A1 Fire Alarm Control Panel. Refer
to this manual to properly install and program the JFS-A1. It is recommended that the user follows the procedures
as outlined in this manual to assist in proper installation and prevent damage to the control panel and associated
equipment.
System Overview
e JFS-A1 system is designed for use as a re control panel for life safety applications, as a releasing panel for pre-
action and deluge, water-based extinguishing systems or for agent extinguishing systems. It may also be used as a
stand-alone re control panel.
System Features
 e JFS-A1 features a built in signaling line circuit (SLC), and is capable of supporting 75 Potter/Nohmi
protocol devices.
 5.0 Amp 24vdc Power Supply
 Two (2) Notication Appliance Circuits (NACs) each rated at 3.0 Amps maximum.
Power Limited
Built in Sync
Cadence Patterns
Auxiliary Power
Releasing Solenoid Output
 Two (2) Input/Output Circuits each rated at 1.0 Amps maximum.
Power Limited
Built in Sync
Cadence Patterns
Auxiliary Power
Contact Input
Reverse Polarity Driver
Releasing Solenoid Output
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 Support for all major synchronization patterns.
Potter
Gentex®
CooperWheelock®
System Sensor®
 Built-in Ethernet port for programming and network connectivity.
 Built-in e-mail support to communicate system status and event information.
 P-Link RS-485 bus supports system accessories.
 1,000 event non-volatile history buer.
 Learn mode enrolls connected sensors and modules for ecient system programming.
 99 Software Zones
 Dead-front Cabinet Design
 2 X 16 character LCD display
 Dedicated Alarm, Supervisory and Trouble Form C Relays
 Analog / Addressable Sensing Technology
Drift Compensation
Maintenance Alert
NFPA 72 compliant calibrated smoke test built-in
P-Link Accessories
 RA-6500R or RA-6075R Remote Annunciator – Maximum of 31 per system in any combination
 UD-1000 Dual Line Fire Communicator – Maximum of 1 per system
 CA-6075 Class A converter module – Maximum of 1 per system allows for ClassA wiring of the SLC circuit,
P-Link communication bus and the two (2)built-in NAC circuits
 PSN-1000 / PSN-1000(E) Intelligent Power Supply Expander – An accessory to the panel providing ten (10)
amps of additional power, with six (6) notication circuits
SLC Loop Accessories
• Addressable Sensors
Photoelectric Smoke Detector (PSA)
Photoelectric/Heat Smoke Detector (PSHA)
Fixed Temperature Heat Detector (FHA)
Rate of Rise/Fixed Temperature Heat Detector (RHA)
Addressable Isolator Base (AIB)
Addressable Relay Base (ARB)
Addressable Sounder Base (ASB)

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• Addressable Modules
Miniature Contact Module (MCM)
Single Contact Module (SCM-4)
Dual Contact Module (DCM-4)
Twin Relay Module (TRM-4)
Monitored Output Module (MOM-4)
Conventional Input Zone Module (CIZM-4)
Short Circuit Isolator (SCI)
How to Use this Manual
Refer to this manual before contacting Technical Support. e information in this manual is the key to a successful
installation and will assist you in understanding proper wire routing, system requirements, and other guidelines
specic to the JFS-A1 system.
Common Terminology
e following table provides you with a list of terms and denitions used with the JFS-A1 system:
Table 1: Terminology
Term Denition
JFS-A1 Cabinet Enclosure
EOLD or Diode Assembly End of Line Diode Assembly
EOLR End of Line Resistor Assembly
Remote Annunicator LCD type Remote Annunicator
NAC Notication Appliance Circuit
SLC Signaling Line Circuit
DACT Digital Alarm Communicator Transmitter (UD-1000)

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SECTION 2: BEFORE YOU START INSTALLATION
is section addresses information that will help you in completing a successful installation, such as the JFS-A1
cabinet layout, specications, environmental considerations, and calculating the battery circuit and SLC current
draw requirements.
SystemSpecications
Cabinet Description
ySixteen (16) gauge sheet steel with hinged, removable locked door
yEnclosure dimensions – 16" x 17" x 3-7/8"
Visual Indicators
yLCD (2 x 16 alphanumeric character display)
yLED indicators (Red, Green, Amber)
LCD Description
yAlarm, Supervisory and Trouble conditions display applicable condition, status and circuit for each correlating
condition
EnvironmentalSpecications
yMount indoors only.
yTemperature 32° to 120°F, humidity 93% non-condensing.
yVerify panel is properly grounded.
yRemove all electronic assemblies prior to any drilling, ling, reaming, or punching of the enclosure. When
possible, make all cable entries from the sides, bottom, or rear of the cabinet. Verify that they will not interfere
with the batteries or other components.
ye panel and system must be tested and maintained in accordance with all local and national codes and
ordinances.
SystemCongurations/Appliances
Table 2: SystemCongurations/Appliances
Model Description Local Releasing
Service Auxiliary Remote Station Central Station Proprietary
JFS-A1 Main Board/Panel Assembly Y Y Y Y Y Y
CA-6075 Class A Expander O O O O O O
UD-1000 DACT N N N Y Y Y
RA-6500R
or RA-6075R LCD type remote Annunciator O O O O O O
PSN-1000 or
PSN-1000(E) Intelligent Power Supply Expander O O O O O O
3005013 End of line resistor assembly Y Y Y Y Y Y
3005012 End of line resistor and diode N Y Y N N N
Y = Yes, required for applicable section
N = No, not required for applicable section
O = Optional, may or may not be used, has no affect on the applicable section.

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ElectricalSpecications
Please refer to the table below for electrical specications:
Table 3: SystemPanelElectricalSpecications
Panel # NACs Rating per
NAC
I/O Circuits
(As
Outputs) SLC Power Notes Style and Class
JFS-A1
2 up to 4 if
both I/O
circuits
congured
as NACs
3 Amp 1 Amp Maximum Load of
56.055 mA
Maximum
of 75
addressable
points
SLC – Class A or B
NAC – Class A or B
P-Link – Class A or B
I/O – Class B only
All are Low Voltage
and Power Limited
SystemSizeSpecications
Please refer to the table below for system size specications:
Table 4: SystemSizeSpecications
Accessories/Subassemblies Maximum System Size
JFS-A1 •y One (1) built-in SLC Loop with 75 addressable points •y Two (2) notication/releasing circuits on the main board
•y Two (2) I/O circuits
UD-1000 One (1) DACT
MainBoardWiringSpecications
ereareseveralwiringrequirementstoconsiderbeforeconnectingcircuitsto the main board:(1) the circuitseparation,
and (2) wiring types.
Circuit Separation
Proper separation between the dierent types of circuits must be maintained between Power Limited, Non-Power
Limited, and High Voltage wiring to reduce electrical interferences, transient voltage or voltage ratings.
ySeparations between the dierent wiring types must be maintained by at least ¼inch and the wire insulation
must be for the higher voltage.
ye control panel cabinet has sucient knockouts located around the periphery allowing the installer to maintain
separation between power limited and non-power limited connections.

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Wiring Types
Wiring specications must be followed to prevent damage or other consequences.
Refer to table below for a breakout of the dierent wiring requirements shown by circuittype:
Table 5: Main Board Circuit Wiring Types
Wiring Type
Type of Circuit Voltage Power
AC Connection High Voltage Non-Power Limited
Battery Connection Low Voltage Non-Power Limited
Trouble Relay Low Voltage Non-Power Limited
Supervisory Relay Low Voltage Non-Power Limited
Alarm Relay Low Voltage Non-Power Limited
I/OCircuits Low Voltage Power Limited
NoticationDeviceCircuits(NACs) Low Voltage Power Limited
P-Link RS-485 Connections Low Voltage Power Limited
Signaling Line Circuit Low Voltage Power Limited
Phone Line – DACT High Voltage Non-Power Limited
Cabinet Dimensions
Figure 1. JFS-A1 Cabinet Dimensions
DOOR =
16.78
"
BACKBOX = 16.56"
DOOR = 16.07 "
BACKBOX = 15.77"
3.75 "
DEPTH =
DEPTH =
3.84 "
TOP
LEFT SIDE
RIGHT SIDE
BOTTOM
DWG #593-1

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Cabinet Wiring Connections
Figure 2. JFS-A1 Cabinet Wiring
POWER
EARTH FAULT
SILENCED
ALARM
SUPERVISORY
TROUBLE
SILENCE
ACK
RESET
DRILL
123
456
789
0
ENTER
ESC
18Ahr 12Volt 18Ahr 12Volt
DWG # 593-2
DWG #593-2
Non-power
limited battery
connection
120VAC 50Hz-60Hz
240VAC 50Hz-60Hz
Connect to separate
unswitched AC circuits
High voltage
phone connections
Non-power
limited relay
connection
Optional
UD-1000 DACT
Optional CA-6075
Class A Expander
Power limited
wiring
Battery Circuit Calculations
Before selecting the battery, it is important to determine the minimum size batteries for standby and alarm times
desired for each application and SLC current draw. If the wrong batteries are installed in a specic application or
incorrect current draw used, the proper standby and minimum alarm time will not be present.
e battery circuit is rated for 8 to 55 AH batteries and will operate the panel alarm for at least 24 hours and
5minutes. e cabinet will house up to two (2) 8 AH or two (2) 18 AH batteries.
Please use the worksheets listed below to calculate the battery size and current draw required for each application
and the SLC:
1. Battery Calculation Worksheet
2. SLC Current Draw Worksheet

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Battery Calculation Worksheets
Description Quantity Standby
(mA)
Total
Standby (mA) Alarm (mA) Total Alarm (mA)
Main board (JFS-A1) 1 130 220
LCD Remote RA-6075R or RA-6075 20 25
LCD Remote RA-6500R 20 50
CA-6075 Class A Expander 12 44
UD-1000 DACT 16 23
PSN-1000/E Power Expander 15 15
NAC 1
NAC 2
I/O 1
I/O 2
SLC Current Draw - (refer to "SLC
Current Draw Worksheet" for
calculation) Total (ma) Total ma
Convert to Amps x 0.001 Convert to Amps x 0.001
(*Refer to maximum allowable standby current) Total A: Total A:
Multiply by standby hours x____
60 minutes per hour
Alarm time (minutes)
Example:
5 minute alarm: enter
12 10 minute alarm:
enter 6
÷ ____
Total Standby AH Total Alarm AH
+Total Standby AH
Total AH
Efciency Factor ÷ 0.85
Required AH
*Maximum Allowable Standby
Current
(UL 24-Hour standby time)
7 AH .230 A
18 AH .619 A
33 AH 1.151 A
55 AH 1.930 A
Important Notes:
1) FACP enclosure can house up to two (2) 18 AH batteries. Larger batteries require
accessory enclosure, part #SSU00500.
2) NFPA72 requires 24 hours of standby power followed by 5 minutes alarm activation.
3) NFPA 12, 12A requires 24 hours and ve minutes of alarm activation.
4) Door holder circuits congured to disconnect upon AC loss need not be included in
the battery standby calculation since they will not draw power during that time. Door
holders will contribute to standby current draw when AC is present.
5) Total current must not exceed power supply rating (5A).

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JFS-A1 INSTALLATION, OPERATION, AND INSTRUCTION MANUAL Document # : DOC230
Issued: August 27, 2012
Revised: N/A
SLC Current Draw Worksheet
Device Type Qty Standby
(mA)
Total
Standby
(mA)
Alarm
(mA)
Total
Alarm
(mA)
Analog photo smoke detector (PSA) 0.325 0.325
Analog photo DUCT smoke detector (DSA) 0.325 0.325
Analog photo smoke / xed heat detector (PSHA) 0.325 0.325
Analog xed heat detector (FHA) 0.325 0.325
Analog combo heat detector (RHA) 0.325 0.325
Conventional initiating zone module - 4 inch mount (CIZM-4)
*Note 1 0.325 1.000
Miniature contact module (MCM) 0.325 0.325
Single contact module - 4 inch mount (SCM-4) 0.325 1.000
Dual contact module - 4 inch mount (DCM-4) 0.325 1.000
Monitored output module - 4 inch mount (MOM-4) *Note 2 0.325 1.000
Twin relay module - 4 inch mount (TRM-4) 0.325 1.000
Short circuit isolator (SCI) 0.325 2.34
Analog sounder base (ASB) *Note 3 0.325 0.325
Analog relay base (ARB) *Note 4 0.325 0.325
Isolator base (AIB) 0.325 2.34
SLC alarm LED Current n/a n/a n/a 27.0
SLC Standby
Current SLC Alarm Current
* Note 1: CIZM requires 24VDC power source. Standby current Style D = 4.90 mA, Style B (8.5 mA).
Alarm Current = 50.0 mA
* Note 2: MOM requires 24VDC power source. Standby current = 1.60 mA. Alarm Current = 1.60 mA
* Note 3: ASB requires 24VDC power source. Standby current = 5 mA. Alarm Current = 100 mA
* Note 4: ARB requires 24VDC power source. Standby current = 5 mA. Alarm Current = 50 mA

Page: 10
JFS-A1 INSTALLATION, OPERATION, AND INSTRUCTION MANUAL
Document #: DOC230
Issued: August 27, 2012
Revised: N/A
Isolator Device Load Calculation
is section covers the distinction between an addressable sensor and an isolator to correctly calculate the total SLC
device load. A device uses an address and consumes power. Whereas, an isolator does not use an address, but does
consume power.
e following scenarios explain how to calculate the current device load based on the SLC conguration.
Scenario1:ClassALoop–IsolatedDevicesConguration
In this conguration, each sensor and isolator device / module counts as one (1) when calculating the total device
load.
Formula: Total # addressable devices + Total # isolators = Total power unit allocations (or device load)
Figure 3. Example of a Class A Loop – Isolated Branches
Conguration Summary:
Total addressable devices = 8 (sensors only) out of 75 possible addressable points.
Total device load = 17 (calculated as follows: 8 sensors + 9 isolators) out of 127 power unit allocations.
Example: If a conguration uses 75 sensors, up to 52 isolators may be supported.
Solution: 127 - 75 = 52
LEGEND:
ISO Module/
Device
Sensor
PANEL
Total addressable
devices = 8
Total isolators = 9
DWG # 593-4