Johnson Controls NU-NCMFIRE-1 Technical Manual

Category
Fire protection
Type
Technical Manual
IFC-1010/2020 Technical Manual 448
IFC Networking Section
Technical Bulletin
Issue Date 0300
© 2000 Johnson Controls, Inc. 1
Code No. LIT-448196 www.johnsoncontrols.com
Introduction Page 3
• Application Details *3
• Theory of Operation *10
• Specifications *11
Engineering Procedures 13
• Planning Considerations 13
• Design Considerations *15
• Ground Fault Detection 36
• Point-To-Point Configuration 37
Installation Procedures 43
• Connecting the Fire OWS 43
• Connecting the Fire-Net NCM 43
• Connecting an IFC Panel *44
• Connecting an INA *45
Commissioning and Troubleshooting Procedures 47
• Setting the Ground Fault Switch 47
• Node Addresses *47
• IFC Panel System Programming for Style 7 FN 49
• FN Stats Program 51
• LED Indicators *56
Metasys Intelligent Fire Network
*Indicates those sections where changes have occurred since the last printing.
2 IFC Networking—Metasys Intelligent Fire Network
Secondary Reporting Page 59
• Secondary Reporting Configuration *59
• Capacity *59
• Commissioning Procedures 60
• Windows NCM350 Setup *60
• Changing Threshold and Style *61
• N2 or FN Connection *61
Appendix 63
• Cooperative Control-By-Event 63
• IFC Panel CCBE Programming 65
• System Software Zones 68
*Indicates those sections where changes have occurred since the last printing.
IFC Networking—Metasys Intelligent Fire Network 3
Introduction
The Metasys® Intelligent Fire Network (MIFN) can be set up for
operation in two separate configurations. The Primary Reporting MIFN
utilizes the Fire OWS (Operator Workstation) and is defined in this
document (see Figure 1). The Secondary Reporting configuration (see
Figure 28) of the MIFN provides secondary (ancillary) reporting of alarm
and trouble conditions on a standard Operator Workstation (OWS). Unlike
the Primary configuration of the MIFN where the Fire OWS is
Underwriters Laboratories (UL) 864 UOJZ Listed as a Proprietary
Protective Signaling Station, the standard OWS in the Secondary
Reporting configuration is not UL Listed for fire alarm operation and only
serves as a Secondary annunciator for the MIFN. For example, in the
Primary configuration, the Fire OWS can reset the fire controllers.
However, in the Secondary Reporting configuration, the control of the fire
alarm panels is limited to viewing and adjusting detector sensitivity,
enabling or disabling alarm verification, and enabling or disabling
day/night sensitivity. The standard OWS communicating with
IFC-1010/2020 panels in the Secondary Reporting configuration of the
MIFN cannot acknowledge alarms, control fire points, or reset IFC panels.
All information in this document pertains to both the Primary Reporting
and the Secondary Reporting configuration unless indicated otherwise
(see the Secondary Reporting section of this document for the exceptions
and differences in configuration).
The Primary Reporting Metasys Intelligent Fire Network is an interface
that allows Intelligent Fire Controller (IFC) fire alarm system products and
the Fire OWS to communicate over a true peer-to-peer network while
meeting the requirements of UL 864 UOJZ and NFPA 72 for Local and
Proprietary Protective Signaling Systems.
Note: Proprietary systems as defined by the National Fire Protection
Association National Fire Alarm Code (NFPA 72) are installations
of fire alarm systems that serve contiguous and noncontiguous
properties under one ownership from a Proprietary Protective
Supervising Station located at the protected property. Trained,
competent personnel must be in constant attendance at the
supervising station. In addition, the Proprietary Protective
Supervising Station must be located in a fire-resistive, detached
building or in a suitable cutoff room where it is not exposed to the
hazardous part of the protected facility.
Application
Details
4 IFC Networking—Metasys Intelligent Fire Network
!
WARNING: Personal Injury Hazard. Each Proprietary
Protective Signaling System must have established
procedures that the operator will follow in the
event of an alarm or other report.
Based on the ARCNET® Local Area Network (LAN), the FN uses
high-performance technology to communicate various types of
information including fire system reports, shared point and control
information, summaries, commands to devices, and Change-of-State
(COS) messages. This information is communicated between the
FN nodes, which are IFC panels, Fire OWSs (Operator Workstations),
Fire-Net NCMs, and local Intelligent Network Annunciators (INAs). All
of the information is also shared with the Metasys Facility Management
System (FMS); however, only a limited number of commands to the
IFC panels may be initiated from the standard FMS Operator Workstation.
Figure 1 shows an example of the Primary Reporting FN connected to
FN nodes in a Style 7 configuration and communicating with the Metasys
FMS N1.
The FN supports communications over twisted pair wire, fiber optic cable,
and a combination of both wire and fiber optic cable. Either a
NFPA Style 7 (Class A) or NFPA Style 4 (Class B) FN Signaling Line
Circuit (SLC) is provided for internode communication to meet the
requirements of NFPA 72. The FN can be configured as either bus
(Style 4, twisted pair wire only) or point-to-point.
To achieve the best communication reliability across the network and for
best fault tolerance, use Style 7 whenever possible.
IFC Networking—Metasys Intelligent Fire Network 5
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Figure 1: Primary Reporting Metasys Intelligent Fire Network
in a Style 7 Loop Topology
6 IFC Networking—Metasys Intelligent Fire Network
FN nodes connect to the FN via Media Interface Boards (MIBs) and are
assigned network node addresses to identify them on the FN. The
Fire OWS and Fire-Net NCM also use those same addresses on the N1.
The Fire OWS and the Fire-Net NCM use an MIB-OWS, consisting of a
MIB that is mounted on an ISA board. The IFC panels and INAs use a
MIB attached to either a Serial Interface Board (SIB-NET) (IFC panel) or
on the main INA circuit board.
The Fire OWS and Fire-Net NCM node addresses must be within certain
ranges. The IFC panel and INA node addresses are not restricted to
particular numbers; however, they cannot use the numbers that are
reserved for the Fire OWS and Fire-Net NCMs. For more information, see
the Node Addresses section of this technical bulletin.
The components of the FN include:
• FN nodes
• intelligent addressable monitor/control modules connected to an
IFC panel node
• initiating devices and notification appliances connected to an
IFC panel node
Intelligent fire controllers, annunciators, and workstations that connect
to the FN and communicate with other fire system equipment using the
FN are referred to as FN nodes. The FN supports up to 50 nodes.
For descriptions of each type of node, see Table 1.
For more information on monitor/control modules, initiating devices, and
notification appliances, refer to the Fire Initiating Devices and
Notification Appliances Technical Manual (FAN 408) and the other
technical bulletins in the IFC-1010/2020 Technical Manual (FAN 448).
!
CAUTION: Only use the hardware specified by Johnson Controls
and listed in the documentation. If other hardware is
used, the Fire Network will not meet the UL 864
UOJZ requirements.
Components
IFC Networking—Metasys Intelligent Fire Network 7
IFC-1010/2020 Fire Panels
The IFC panel collects information from addressable pull stations,
modules, detectors, and transponders and sends commands to addressable
control modules and transponders connected to the IFC Signaling Line
Circuit (SLC) communication circuits. The IFC panel makes this
information accessible to other nodes connected to the network.
Information from the panel may include the following signals: fire alarm,
security alarm, trouble, supervisory, and zone status. ACM Series
annunciator points programmed in an IFC panel can also communicate
through the FN with similar physical annunciator points programmed in
an INA.
Note: Only the IFC-1010/2020 panels are UL 864 Listed for use with
the FN.
Fire OWS
The Fire OWS is a computer-based platform that displays network
information and organizes the network into programmed groups of
IFC panels associated with each Fire-Net NCM. The Fire OWS is
UL 864 UOJZ Listed as the Proprietary Supervising Station in a NFPA 72
Proprietary Protective Signaling System for fire alarm applications.
The Fire OWS also contains a history file that can record events and
actions that have occurred in the network.
The Fire OWS, dedicated printer, fire watchdog timer, and Fire-Net NCMs
are not required when the FN is configured to comply with the UL Local
Fire Alarm Listing. In that configuration, an INA can serve as the central
annunciator for all of the IFC panels connected on the FN.
Fire-Net NCM
The Fire-Net NCM is a special and unique UL Listed NCM300-type
controller used to coordinate annunciation between IFC panels and the FN,
and between the IFC panel and the Fire OWS. See the Network Control
Module 300 Series Technical Bulletin (LIT-6360251) in the Metasys
Network Technical Manual (FAN 636).
Intelligent Network Annunciator (INA)
The INA is UL Listed and can display and store network information
generated by IFC panels on the network. The INA can perform global
reset, signal silence, and acknowledge commands for the network, as long
as all of the IFC panels are within a single building. The INA has
EIA-RS232 printer and CRT terminal interfaces used to record/display
network status and an EIA-RS485 interface for ACM Series annunciators.
8 IFC Networking—Metasys Intelligent Fire Network
If a network has both a Fire OWS and an INA, use the INA as a
display-only device unless the Fire OWS or Fire-Net NCM fails. In that
case, use the INA as a backup Person-Machine Interface (PMI) device.
See the Intelligent Network Annunciator (INA) Technical Bulletin
(LIT-448193) for more information.
When the INA is applied to an FN that has IFC panel nodes in more than
one building, the keypad of the INA must be disabled to comply with the
UL Listing, which does not allow signal silence commands from the INA
to more than one building.
Repeaters
The UL Listed repeaters extend communication distances between
FN nodes by boosting data signals. For more information, refer to the
Repeaters Technical Bulletin (LIT-448197).
Table 1: FN Node Components
Code Number
Description
WD-TIMER-FIRE
Metasys Fire Watchdog Enclosure with Relay (required for each Fire OWS)
NU-NCMFIRE-1
Metasys Fire-Net NCM. This can either be housed in a Fire Watchdog Enclosure or an
EN-EWC35-0 enclosure. See the Universal Packaging Module (UPM) Product Bulletin
(LIT-635044) for details on the enclosure.
FIREOWS-PC-02
Metasys Fire OWS PC with Metasys and Fire OWS Software, Keyboard, and Mouse
FIRE-MON-17
FIRE-MON-21
Choose from one of the following monitors for each Fire OWS:
17 in. Metasys Fire OWS Monitor
21 in. Metasys Fire OWS Monitor
MIB-OWS-F-0
MIB-OWS-WF-0
MIB-OWS-W-0
Choose from the following for use with each Fire OWS and Fire-Net NCM:
Fiber Optic Media Interface Board (MIB)
Fiber Optic/Copper MIB
Copper Wire MIB
MIB-F
MIB-WF
MIB-W
Choose from the following for use with each IFC panel and each INA:
Fiber Optic MIB
Fiber Optic/Copper MIB
Copper Wire MIB
SIB-NET
Serial Interface Board required for the IFC panel to connect to the MIB.
RPT-F
RPT-WF
RPT-W
Fiber Optic Repeater
Fiber Optic/Copper Repeater
Copper Wire Repeater
INA
Intelligent Network Annunciator
PRN-4 or PRN-3
Dedicated (required for each Fire OWS) and Optional Printers
IFC Networking—Metasys Intelligent Fire Network 9
The table below is a list of all the Fire Network (FN) literature. The
document name, number, and manual names are listed.
Table 2: Related Documentation
Document Name
Document
Number
Sales Literature
Metasys Intelligent Fire Network Product
Bulletin
LIT-447032 Fire Management Sales Resource
Manual (FAN 447)
Metasys Intelligent Fire Network Media Options
Product Bulletin
LIT-447034 Fire Management Sales Resource
Manual (FAN 447)
Fire Operator Workstation (Fire OWS) Product
Bulletin
LIT-447036 Fire Management Sales Resource
Manual (FAN 447)
Intelligent Network Annunciator (INA) Product
Bulletin
LIT-447038 Fire Management Sales Resource
Manual (FAN 447)
Technical Literature
Metasys Intelligent Fire Network Technical
Bulletin
LIT-448196
IFC-1010/2020 Technical Manual
(FAN 448)
Fire Operator Workstation (Fire OWS) Technical
Bulletin
LIT-636014 Metasys Network Technical Manual
(FAN 636)
Fire OWS section
N/A
Metasys Operator Workstation User’s
Manual (FAN 634)
Network Control Module 300 Series Technical
Bulletin
LIT-6360251 Metasys Network Technical Manual
(FAN 636)
Fire System Objects Technical Bulletin
LIT-636104 Metasys Network Technical Manual
(FAN 636)
Serial Interface Board (SIB-NET) Technical
Bulletin
LIT-448190
IFC-1010/2020 Technical Manual
(FAN 448)
Intelligent Network Annunciator (INA) Technical
Bulletin
LIT-448193 IFC-1010/2020 Technical Manual
(FAN 448)
Repeaters Technical Bulletin
LIT-448197
IFC-1010/2020 Technical Manual
(FAN 448)
Related
Documentation
10 IFC Networking—Metasys Intelligent Fire Network
The FN works in conjunction with the Metasys N1 LAN to provide
a complete system of fire alarm, security alarm, and HVAC
(Heating, Ventilating, and Air Conditioning) control. The Fire
OWSs and Fire-Net NCMs are connected to both the FN and N1 LAN,
while the IFC panels and INAs are only connected to the FN. The FN is
the fire alarm system communication path; however, if path resources are
available on the N1 LAN, fire alarm system communication may use the
N1 LAN.
When the fire alarm system requires commissioning and/or maintenance,
communication uses the N1 LAN. In addition, the N1 LAN provides the
interface between the fire alarm, energy management, and smoke control
systems.
Only Metasys components connected to the FN communication circuit are
UL Listed for fire alarm service. Metasys components connected
exclusively to the N1 communication circuit are not part of the fire alarm
system and do not need to be UL Listed for fire alarm service.
For details on the N1 LAN, refer to the N1 ARCNET Local Area Network
Technical Bulletin (LIT-636017) in the Network Communications section
of the Metasys Network Technical Manual (FAN 636).
Theory of
Operation
IFC Networking—Metasys Intelligent Fire Network 11
Table 3: Specifications
Product
Metasys Intelligent Fire Network
Topology Choices
FN configurable as: Ring (recommend Style 7) or as Star,
Bus, or Hybrid (which are Style 4 configurations).
FN Media Types Non-shielded Wire (12 to 18 AWG, twisted pair,
3,000 ft maximum)
Fiber Optic Cable (dual-fiber, multi-mode,
62.5 x 125 micrometers,
820 nanometers wave length,
ST style connectors, 10 dB maximum
signal attenuation per segment).
Combination of Wire and Fiber Optic
NFPA Style 4 (Class B) or Style 7 (Class A). For distance
capabilities of each medium, see the Twisted Pair Copper
Wire Circuits or the Fiber Optic Cable Circuits sections of this
technical bulletin.
Data Transfer Rate
312.5K baud
ARCNET technology
Number of Nodes
Allowed
50 maximum
Number of
IFC Panels per
Fire-Net NCM
10 maximum (On the Secondary Reporting Fire Network, a
maximum of four IFC panels can be connected to the
NCM-350.)
Recommended
Ambient Operating
Conditions
10 to 40°C (50 to 104°F)
20 to 80% RH
Agency Listings
UL 864 UOJZ Listed
Termination Method
Terminating resistors on MIBs and repeaters for FN wire media
Power
Requirements
Fire OWS PC* 115 V (90-135 VAC) at 3.5 amperes
or 230 V (180-265 VAC) at
2.0 amperes
Fire-MON -17* 100 to 120 VAC at 2.5 amperes or
Fire-MON -21* 200 to 230 VAC at 1.5 amperes at
50 to 60 Hz
Fire Watchdog *2 watts, 120 VAC, 0.0166 amperes
Enclosure* at 60 Hz
Fire-Net NCM* 120 to 230 VAC, 500 mA at
50-60 Hz
PRN-3 Printer* 0.66 amperes, 120 V, 60 Hz,
0.5 amperes while printing
PRN-4 Printer* 0.66 amperes, 120 V, 60 Hz,
0.5 amperes while printing
INA 24 VDC with secondary battery
power source, 0.250 amperes
standby
IFC-1010/2020 Panel 120 VAC, 1.8 amperes at
50-60 Hz**
* Must be connected to an Uninterruptable Power Supply (UPS) that is UL 1481 Listed
or Recognized.
** This rating is based on full use of the power supply capacity and excludes the power
requirements for high capacity battery chargers and/or optional notification appliance
circuit power supplies, which may be required to supplement the main power supply
and/or audio amplifier power requirements.
Specifications
12 IFC Networking—Metasys Intelligent Fire Network
IFC Networking—Metasys Intelligent Fire Network 13
Engineering Procedures
The operating environment of the FN nodes must maintain operating
temperatures between 10-40°C (50-104°F) while maintaining relative
humidity at a value of 20-80%. The atmosphere must be free of corrosive
chemical vapors that may damage electronic equipment. The Fire OWS
has additional considerations regarding dust in the environment. For
additional environmental information specific to the Fire OWS, refer to
the Fire Operator Workstation (Fire OWS) Technical Bulletin
(LIT-636014) in the Metasys Network Technical Manual (FAN 636).
All components of the FN must be provided with a standby power supply.
The power supply must provide energy to the components automatically
within 30 seconds without loss of signals if the primary power source is
incapable of providing the minimum voltage for proper operation.
The following FN components are not capable of operating directly from a
24 VDC source of standby power:
• Fire OWSs
• dedicated printers
• Fire-Net NCMs
• Fire Watchdog Enclosure including the watchdog timer
You must supply two forms of emergency power for these devices as well
as any other FN devices that cannot be powered by 24 VDC battery
backup systems. One is an Uninterruptable Power Supply (UPS) system
that is UL 1481 Recognized with sufficient capacity to operate each
component for at least 15 minutes or until the secondary supply is capable
of supplying the UPS input power requirements. La Marche
Manufacturing Co. has an UPS power supply that is UL 1481 Recognized.
For details, contact: La Marche Manufacturing Co., 106 Bradrock Drive,
Des Plaines, IL 60018 (1-847-299-1188).
The second is a system that can supply 120 VAC with sufficient capacity
to operate these devices under a maximum load for 24 hours. This power
must be provided by multiple engine-driven generators, one of which is
arranged for automatic starting.
Environment
Planning
Considerations
Power
14 IFC Networking—Metasys Intelligent Fire Network
Note: The IFC panel and INA power supplies have built in UPSs. If the
Fire Network is operated in only the Local Fire Alarm System
configuration (as defined in NFPA 72 and by the UL Listing), then
the Fire OWS, dedicated printer, Fire watchdog timer, and the
Fire-Net NCM are not required. In this case, neither the UPS nor
the multiple engine-driven generators for these components are
required.
The UPS must be sized to supply standby operating power of the time
specified in applicable fire alarm building codes and be acceptable to the
Authority Having Jurisdiction (AHJ), which may exceed the NFPA
requirements. If the FN does not have to be installed to meet the NFPA
and/or local building code requirements, it may be possible to provide
considerably smaller capacity power supplies (Tables 3 and 4).
!
CAUTION: If the FN is configured for and being operated as a
Proprietary Fire Alarm System—as defined in
NFPA 72 and the UL Listing—the computer,
dedicated printer, watchdog timer, and Fire-Net
NCM must be powered into a UPS. Make sure the
UPS is recognized by the Authority Having
Jurisdiction (AHJ).
Table 4: Power Requirements
Component
Power Requirements
Fire OWS PC*
115V (90 to 135 VAC) at 3.5 amperes or
230V (180-265 VAC) at 2.0 amperes
Fire-MON-17*
Fire-MON-21*
100 to 120 VAC at 2.5 amperes or
200 to 230 VAC at 1.5 amperes at 50 to 60 Hz
Fire Watchdog
Enclosure*
2 watts, 120 VAC, 0.0166 amperes, at 60 Hz
Fire-Net NCM*
120 to 230 VAC, 500 mA at 50-60 Hz
PRN-3 Printer*
0.66 amperes, 120V, 60 Hz, 0.5 amperes while printing
PRN-4 Printer*
0.66 amperes, 120V, 60 Hz, 0.5 amperes while printing
INA
24 VDC with secondary battery power source,
0.250 amperes standby
IFC-1010/2020 Panel
120 VAC, 1.8 amperes at 50/60 Hz**
* Must be connected to an Uninterruptable Power Supply (UPS) that is UL 1481 Listed
or Recognized.
** This rating is based on full use of the power supply capacity and excludes the power
requirements for high capacity battery chargers and/or optional notification appliance
circuit power supplies, which may be required to supplement the main power supply
and/or audio amplifier power requirements.
IFC Networking—Metasys Intelligent Fire Network 15
When designing the wiring layout of a FN system, you need to develop a
plan for the entire network that best suits your facility and that complies
with the NFPA 72 standards, the UL 864 Listing, and local codes. There
are specific distance limitations on the FN system communication path
length and circuit segment lengths that relate to the type of configuration,
media, and connections you choose.
This section explains the types of configuration, communication media,
media interface boards, and connections that are available, and shows the
distance limitations you have to work with. Terminating resistors and
ground fault detection on wire systems is also covered. In addition, the
Installation Procedures section details how to connect each FN node to
the FN.
To make sure the FN is functioning properly, a program called FN Stats
can be used to verify that the Fire OWSs and Fire-Net NCMs are
communicating across the network. A step-by-step guide of FN Stats is
included in the Commissioning and Troubleshooting Procedures section
of this technical bulletin.
You need to determine which options you’ll use to design the system,
including:
• network communication configuration: Style 4 or Style 7
• media which includes wire, fiber optic cable, or a combination of wire
and fiber optic cable
• media interface board for each FN node
• internode connection: bus or point-to-point
Distance limitations also need to be considered when designing the system
and vary per medium selected. For details, refer to Distance Capabilities
in the Engineering Procedures section later in this bulletin.
Design
Considerations
16 IFC Networking—Metasys Intelligent Fire Network
To meet the UL 864 Listing, the FN must be wired according to
either NFPA Style 7 (Class A) or NFPA Style 4 (Class B)
standards. The difference between the two styles is evident when a single
break or short occurs. A Style 7 circuit will provide an alarm indication
with a single open, a single ground, a wire-to-wire short, or an open and a
ground, because the communication circuit forms a loop (Figure 2). In
other words, with a single fault on the circuit, there is an alternate path for
communication between nodes. A Style 4 will provide an alarm with a
single ground fault, but may not provide an alarm with any of the other
fault types on the circuit and will not communicate with any nodes that are
attached on the network beyond the single break or short (Figure 3).
Node 3
Node 2
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
Node 4
Node 5
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
Style7
With a single open,
single ground, a
wire-to-wire short,
or an open and a ground,
all network nodes can still
send an alarm to the
Fire OWS and other nodes.
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
Node 6
Node 1
Figure 2: Style 7 Communication with a Single Break
Node 3
Node 1
Node 2
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
Node 4
Node 5
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
style4
With a single break
communication is
severed, Nodes 5 and 6
can no longer communicate
with Nodes 1-4 and additional
communication faults may occur.
)
INT ELLIG ENT FIR E DE TECTIO N AND ALAR M SYSTE M
Node 6
Network 1
Network 2
Figure 3: Style 4 Communication with a Single Break
Choosing a
Wiring Style
IFC Networking—Metasys Intelligent Fire Network 17
Table 5: Performance Comparison of Style 7 and Style 4
Feature
Style 7
Style 4
Single Break or Short
Communication continues to
all nodes on the network.
Communication loss
Media Type
Wire, fiber optic, or
wire/fiber optic combination
Wire, fiber optic, or
wire/fiber optic combination
Connection Type
Point-to-point only
Bus or point-to-point
Changes to IFC Panel
Programming?
Need to system program at
panel. (See the IFC Panel
System Programming for
Style 7 FN in the
Commissioning and
Troubleshooting Procedures
section of this document.)
No changes needed; Style 4
is default.
Changes to Software?
Need to change
METASYS.INI file either on
installation or in text editor.
(See the Style 7 Operation
section of this document.)
No changes needed; Style 4
is default.
For additional information regarding Style 4 and Style 7 wiring styles,
refer to the Performance and Capacities of Signaling Line Circuits section
of the NFPA 72, National Fire Alarm Code.
18 IFC Networking—Metasys Intelligent Fire Network
Style 7 Operation
Under Style 7 operation, a single open, single wire-to-wire short, single
wire-to-wire short and open, single wire-to-wire short and ground, or
single open and ground will not affect the system’s ability to receive an
alarm condition and transmit the condition across the FN to all nodes. The
ability to receive alarms will continue with a single occurrence of any of
the above situations, while the system displays a trouble condition. A
single ground does not affect communication, but can be detected and
reported as a trouble.
For Style 7, all network nodes must be connected point-to-point to form a
loop.
If you decide to use Style 7, you will need to do the following software
programming changes:
1. In the OWS METASYS.INI file, change the default Style 4 parameter
to Style 7. You may do this either during software installation or in a
text-editing tool after installation. See the Fire Operator Workstation
(Fire OWS) Technical Bulletin (LIT-636014) for details.
2. In all IFC panels that are connected to the Style 7 FN, manually change
the default from Style 4 to Style 7. To do so, follow the steps in the
IFC Panel System Programming for Style 7 FN section of this
technical bulletin.
Note: This is not the programming of the Style wiring used for the
IFC panel’s SLC connecting the addressable devices to the panel.
3. Use NCSETUP for Windows

95 and Windows 98 to change the
Fire-Net NCM to Style 7. See the FN Configuration section of the
NCSETUP for Windows Technical Bulletin (LIT-6360251d) located in
the Metasys Network Technical Manual (FAN 636).
4. Change the INAs programming to Style 7. See the Partial System
Programming section of the Intelligent Network Annunciator (INA)
Technical Bulletin (LIT-448193) located in the IFC-1010/2020
Technical Manual (FAN 448).
IFC Networking—Metasys Intelligent Fire Network 19
Style 4 Operation
Under the Style 4 operation, the following faults on a FN segment result in
communication loss:
• a single open
• a single wire-to-wire short
• a single wire-to-wire short and open
• a single wire-to-wire short and ground
• a single or open and ground
In addition, the above conditions can cause the IFC panels electrically
beyond the fault to lose communication to the Fire OWS, as well as the
rest of the Metasys FMS system. A single ground does not affect
communication, but can be detected. Each fragment of the network on
either side of a cable fault may reconfigure to permit communication
among the nodes within the fragment.
All network nodes are normally configured for Style 4 in the software.
Network nodes that use both Port A and Port B of the MIB, however, can
be configured for Style 7 in software to pinpoint, when necessary, which
port is having a communication problem. This, however, does not make
the network Style 7.
The communication media choices for the FN include unshielded twisted
pair copper wire, fiber optic cable, or a combination of the two. Both
twisted pair wire and fiber optic cable have distance limitations, and the
procedures differ for determining permissible segment length. For details,
refer to either the Twisted Pair Copper Wire Circuits or the Fiber Optic
Cable Circuits sections that follow.
Twisted Pair Copper Wire Circuits
When using twisted pair copper wire, the cable manufacturer and part
number of the twisted pair wire should be selected to satisfy code and
specific application requirements. Refer to Table 6 for descriptions of
specific cable types used with the FN.
The length of individual circuit segments is limited by attenuation of the
cable selected. The maximum length depends on the selected receiver
threshold setting and is listed in Table 6. The low threshold setting makes
the receiver more sensitive to both signal and noise. The high threshold
setting makes the receiver more immune to noise but requires a stronger
signal, which is equivalent to a shorter distance limit. If the distance
required for a circuit segment is greater than permitted, a Repeater module
(Model RPT-W) must be inserted into the circuit segment at intervals less
than or equal to the length restriction.
Choosing an FN
Communication
Medium
20 IFC Networking—Metasys Intelligent Fire Network
You are not limited to using only one type of wire on the FN. You can
vary the type of wire used on separate circuit segments as long as the
two kinds of wire do not physically connect together.
Using a different port on the same MIB/MIB-OWS does not constitute a
physical connection. However, if you have two different types of wires
connecting to a node, the difference in wire characteristics may affect the
operation of the system when the node is powered down.
Note: Make sure when connecting network nodes between buildings that
the twisted pair wire is in an underground conduit, separate from
all power wiring.
Table 6: Twisted Pair Cable Lengths per Cable Segment
Permissible Distance in Feet for Each
Cable Segment (Related to High/Low
Threshold Setting)
Cable Manufacturer,
Part Number,
Gauges/Conductors
Manufacturer’s
Specifications
Point-to-Point
Configuration
2 Nodes/Repeaters
Bus
Configuration
3 to 7
Nodes/Repeaters
High
Low
High
Low
Belden 9580,
14 AWG,
1 Pair Unshielded
FPLR,
NEC Article 760,
UL 1424
1-1,400
1,300-
3,000
1-100
N/A
Belden 9572 ,
16 AWG,
1 Pair Unshielded
FPLR,
NEC Article 760,
UL 1424
1-1,300
1,200-
1,300
1-100
N/A
Guardian E2572S,
18 AWG,
1 Pair Unshielded
Mid-Capacitance,
FPL, PVC, NEC
Article 760, UL 1424
1-1,200
1,000-
3,000
1-100
N/A
Atlas 228-18-1TP-2,
18 AWG,
1 Pair Shielded
Low Capacitance,
FPL, PVC,
NEC Article 760,
UL 1424
1-1,200
1,000-
3,000
1-100
N/A
Signal 82802-06-04,
18 AWG,
1 Pair Unshielded
Mid-Capacitance,
FPL, PVC, NEC
Article 760, UL 1424
1-1,200 1,000-
2,800
1-100 N/A
Signal 98181-06-04,
18 AWG,
1 Pair Unshielded
Mid-Capacitance,
FPL, PVC, NEC
Article 760, UL 1424
1-1,200 1,000-
2,800
1-100 N/A
West Penn Wire D980,
18 AWG,
1 Pair Unshielded
FPL, PVC,
NEC Article 760,
UL 1424
1-1,200 1,000-
3,000
1-100 N/A
Brand-Rex 93782-01,
16 AWG,
1 Pair Unshielded
Contact Manufacturer 1-1,400 1,200-
2,000
1-100 N/A
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Johnson Controls NU-NCMFIRE-1 Technical Manual

Category
Fire protection
Type
Technical Manual

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