Hochiki FireNET FN-4127-NIC User manual

FireNET
FN-4127-NIC Network Interface Card
Installation and Operation Manual
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FireNET FN-4127-NIC I & O Manual v1.0 UL
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Table of Contents
Table of Contents...........................................................................................................................2
Section 1 – Introduction
.........................................................................................................................................................3
1.1 Limitations of Fire Alarm Systems ........................................................................3
Section 2 – General Wiring Specifications
.........................................................................................................................................................6
Section 3 – Installing the FN-4127-NIC Network Interface Card
.........................................................................................................................................................7
3.1 Overview of the FN-4127-NIC ..............................................................................7
3.1.1 FireNET 4127 Installation ................................................................................7
3.1.2 FireNET Plus Installation .................................................................................8
3.1.3 Addressing the FN-4127-NIC Network Card....................................................9
3.2 Cable Length ......................................................................................................10
3.2.1 Wiring Scheme ..............................................................................................11
3.2.2 Cable Type ....................................................................................................12
3.2.3 Proper Shield Termination of the Network Cable...........................................12
WARRANTY..................................................................................................................................13

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Section 1 – Introduction
The FN-4127-NIC is a network interface card that enables information to be transmitted
between control panels using a secure network connection. The FN-4127-NIC is listed
as compatible for use with the FireNET and FireNET Plus analog fire alarm control
panels.
1.1 Limitations of Fire Alarm Systems
Follow Recommended Installation Guidelines: To achieve early fire detection, fire
detection sensors should be installed in all rooms and areas of a house, apartment,
or building in accordance with the recommendations of the National Fire Protection
Association Standard 72 (NFPA 72), manufacturer’s recommendations, state and
local codes, and the recommendations contained in Guide for the Proper Use of
System Smoke Detectors, which is made available at no charge to all installing
dealers. Generally, the standards and recommendations include the following (but
installers should refer to the specific guidelines above before installing):
Sleeping Rooms: Smoke detectors should be installed in every sleeping
room.
Hallways: More than one smoke detector should be installed in a hallway if it
is more than 30 feet long.
At least Two Smoke Detectors: There should never be less than two smoke
detectors per apartment or residence.
Smoke Detectors in Alarm, Electrical, or Phone Locations: Smoke detectors
should be located in any room where an alarm control is located or an alarm
control connects to an electrical source or phone line. If detectors are not so
located, a fire within the room could prevent the alarm control from reporting a
fire.
Notification Systems: All fire alarm systems require notification devices,
including sirens, bells, horns, and/or strobes. In residential applications, each
automatic alarm initiating device when activated should cause the operation of
alarm notification device that should be clearly audible in all bedrooms over
ambient or background noise levels (at least 15dB above noise) with all
intervening doors closed.
Alarm in Every Bedroom and Level of Residence: A smoke detector with an
integral sounder (smoke alarm) should be located in every bedroom and an
additional notification device should be located on each level of a residence.
Maintenance: A maintenance agreement should be arranged through the
local manufacturer’s representative and maintenance should be performed
annually by authorized personnel only. To keep a fire alarm system in
excellent working order, ongoing maintenance is required per the
manufacturer’s recommendations and UL and NFPA standards. At a minimum
the requirements of Chapter 7 of NFPA 72 (1999) shall be followed.

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Test Weekly: The alarm system should be tested weekly to make sure all
sensors and transmitters are working properly. The most common cause of an
alarm system not functioning when a fire occurs is inadequate maintenance.
Alarms Cannot Guarantee Warning or Protection: Fire alarm system cannot
guarantee warning or protection against fire in every potential situation. A study by
the Federal Emergency Management Agency (an agency of the United States
government) indicated that smoke detectors may not go off or give early warning in
as many as 35% of all fires.
Limitation on Fire Alarm Effectiveness: A fire alarm system may not provide timely or
adequate warning, or simply may not function, for a variety of reasons. For example:
No Detection: Particles of combustion or smoke from a developing fire may
not reach the sensing chambers of smoke detectors because:
1. Barriers (such as closed or partially closed doors, walls, or chimneys)
may inhibit particle or smoke flow.
2. Smoke particles may become cold, stratify, or not reach the ceiling or
upper walls where detectors are located.
3. Smoke particles may be blown away from detectors by air outlets.
4. Smoke particles may be drawn into air returns before reaching the
detector.
No Multi-Floor Detection: In general, smoke detectors on one level of a
structure cannot be expected to sense fires developing on another level.
Insufficient Smoke: The amount of smoke present may be insufficient to
alarm smoke detectors. Smoke detectors are designed to alarm, at various
levels of smoke density. If such density levels are not created by a developing
fire at the location of the detector, the detector will not go into alarm.
Smoldering vs. Flaming Fires: Smoke detectors, even when working properly,
have sensing limitations. Detectors that have photoelectric sensing chambers
tend to detect smoldering fires better than flaming fires, which have little
visible smoke. Detectors that have ionizing-type sensing chambers tend to
detect fast flaming fires better than smoldering fires. Because fires develop in
different ways and are often unpredictable in their growth, neither type of
detector is necessarily best and a given type of detector may not provide
adequate warning of a fire.
False Alarms and Pre-Fire Disconnection: Smoke detectors are subject to
false alarms and nuisance alarms and may have been disconnected by users.
For example, a smoke detector located in or near a kitchen may go into
nuisance alarm during normal operation of kitchen appliances. In addition,
dusty or steamy environments may cause a smoke detector to falsely alarm. If
the location of a smoke detector causes an abundance of false alarms or
nuisance alarms do not disconnect the smoke detector, call a professional to
analyze the situation and recommend a solution.
Fast Fires and Explosions: Smoke detectors cannot be expected to provide
adequate warning of fires caused by arson and children playing with matches
(especially within bedrooms), smoking in bed, violent explosions (caused by
escaping gas, improper storage of flammable materials, etc.).
Heat Detectors: Heat detectors do not sense particles of combustion and are
designed to alarm only when heat on their sensors increases at a

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predetermined rate or reaches a predetermined level. Heat detectors are
designed to protect property, not life.
Unheeded Warning: Warning devices (including horns, sirens, and bells) may
not alert people or wake up sleepers who are located on the other side of
closed or partially open doors. A warning device that activates on a different
floor or level of a dwelling or structure is less likely to awaken or alert people.
Even persons who are aware may not notice the warning if the alarm is
muffled by noise from a stereo, radio, air conditioner or other appliance, or by
passing traffic. Audible warning devices may not alert the hearing impaired
(strobes or other devices should be provided to warn these people). Any
warning device may fail to alert people with a disability, deep sleepers, people
who have recently used alcohol or drugs, or people on medication or sleeping
pills.
Strobes: Strobes can under certain circumstances, cause
seizures in people with conditions such as epilepsy.
Drills: Studies have shown that certain people, even when they
hear a fire alarm signal, do not respond or comprehend the
meaning of the signal. It is the property owner’s responsibility to
conduct fire drills and other training exercises to make people
aware of fire alarm signals and instruct on the proper reaction to
alarm signals.
Hearing Loss: In rare instances, the sounding of a warning
device can cause temporary or permanent hearing loss.
Telephone Transmissions Problems: Telephone lines needed to transmit
alarm signals from a premises to a central station may be out of service or
temporarily out of service. For added protection against telephone line failure,
backup radio transmission systems are recommended.
System Failure With Age or Lack of Maintenance: System components,
though designed to last many years, can fail at any time. As a precautionary
measure, it is recommended that smoke detectors be checked, maintained,
and replaced per manufacturer’s recommendations.
Electrical Power Problems: System components will not work without
electrical power. If system batteries are not serviced or replaced regularly,
they may not provide battery backup when AC power fails.
High Air Velocity or Dusty or Dirty Environments: Environments with high air
velocity or that are dusty or dirty require more frequent maintenance.
Importance of Maintenance: In general, fire alarm systems and devices will not work
without power and will not function property unless they are maintained and tested
regularly.
Alarm is Not Substitute for Insurance: While installing a fire alarm system may make
the owner eligible for a lower insurance rate, an alarm system is not a substitute for
insurance. Property owners should continue to act prudently in protecting the
premises and the people in their premises and should properly insure life and
property and buy sufficient amounts of liability insurance to meet their needs.

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Section 2 – General Wiring Specifications
Care should be taken when wiring the system to avoid situations that would contribute to
inducing electrical noise from one wire to another. Induced noise can interfere with
telephone communications or cause erratic system operation. Follow these general
guidelines to plan your system wiring prior to installation.
Route high and low voltage wiring separately. Maintain a minimum 2” separation
between high and low voltage wiring throughout the building.
Route control panel wiring around the perimeter of the control panel enclosure. A
minimum .25” separation is required between high and low voltage wiring.
Identify which group each wire or cable is associated with from the list below.
Isolate each group’s wiring as much as possible. Avoid running a single multi-
conductor cable for multiple groups of conductors.
AC Power - Main Power Supply
Notification Appliances
SLC Circuits
Relay Outputs
Voltage Outputs
Remote Control and Auxiliary Inputs
Network Wiring (Shielded wire required)
RS485 Bus Wiring (Shielded wire required)
Keep wiring from different groups separated as much as possible. If you must
share the same conduit with different conductor groups consider using shielded
cable.
If shielded cable is used terminate the shield to the earth ground terminal block in
the main control panel and leave open at field side of cable. Do not ground at
both ends of cable.

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Section 3 – Installing the FN-4127-NIC Network Interface Card
3.1 Overview of the FN-4127-NIC
The FN-4127-NIC Network Interface Card enables information to be transmitted
between control panels using a secure network connection. Up to sixty-four nodes
(control panels and/or network annunciators) can be connected together. The system
can be configured such that selected information can be displayed or acted upon at
each node.
3.1.1 FireNET 4127 Installation
To enable control panels to be connected together as a network, a network card must be
installed in each panel. This card connects to the FN-4127 on the display circuit board
that is on the front door of the control panel. The network card is held in place by two
M3 screws.
Front Panel PCB
M3 Screws
FN-4127-NIC
The network card is installed in the exact same fashion for the FN-LCD-N Network LCD
annunciator.
To install a network card, the AC and battery power must first be switched off and the
metal cover over the front panel PCB (printed circuit board) removed. The network card
can then be plugged into the two connectors (J1 and J3) in the bottom right of the main
panel PCB and secured in position with the M3 screws. Re-install the metal cover after
the network card has been installed.

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3.1.2 FireNET Plus Installation
The network card connects to the FireNET Plus on the rear of the main control board
and is held in position by two M3 screws. If an FNP-1127-SLC expander card has been
installed, the network card must be mounted on top of the FNP-1127-SLC expander.
Panel PCB (rear side)
M3 Screws
FN-1127-SLC
Expander Board (may
be installed)
FN-4127-NIC
Network Card
To install a network card, the AC and battery power must first be switched off. Next, the
display panel must be opened to expose the back of the circuit board. The network card
can then be plugged into the two connectors on the top left of the control board PCB (or
plugged into the connectors on the FNP-1127-SLC card, if installed). The network card
must then be secured in position with the M3 screws.
ALWAYS OBSERVE STATIC PRECAUTIONS WHEN HANDLING CIRCUIT BOARDS!

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3.1.3 Addressing the FN-4127-NIC Network Card
Each network node must be allocated a unique network address. This is done by setting
the DIP switches on the network card to the required binary number as shown below. It
is important that each node has a different address for correct operation so care must be
taken to set and record the network card address for each panel. Always set the address
on the DIP switches with power to the panel switched off.
This switch setting
shows address
number one.
Switch position up
selects the binary
digit, so a switch
with 1,2 and 3 up
would represent
address number 7.
The network card
has a green and a
red LED indicator
to show the status
of the incoming
and outgoing
communications.
Under normal
circumstances,
both LEDs will be
lit, indicating that
the card is communicating properly. If one or both of the LEDs are not lit then the
connection to neighboring panels is not functioning properly.
This switch setting shows address number one.
Switch position up selects the binary digit, so a switch with
1,2 and 3 up would represent address number 7.
12345678
ON
C3 C4
C7
C10
C11
C12
C13
C14
C15
R2
R4
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R19
R20
R21
R24
R25
R26
R27
R28
C1
C2
C16
C17 C18
C19
C20
D1
D2
OP5
OP6
RL1
RL2
S1
TR3
TR4
TR5
TR6
U1
U4 U5
U6
U7
SW2 J2
LED1
LED2
J1
+++
+
+
+
+
K6005
RP1
LED1-GREEN = OUTGOING CONNECTION OK LED2-RED = INCOMING CONNECTION OK
Processor reset switch
(The black part shows the switch actuator)

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3.2 Cable Length
The FireNET network communications protocol has been designed to be extremely
tolerant to interference and data corruption; however as with any system, limitations
must be set to guarantee correct operation. The specified transmission distance limit for
the communications method used is 4000 ft. (1200m). Because the data is re-
transmitted at each network card, in theory, there can be 4000 ft. (1200m) between each
card if required. The minimum cable size for the FireNET network is #20 AWG. The
network communications uses RS485 technology.
Using the above cable distances however, does not take into account the failure of a
network card to communicate with the system through total power failure or a card
trouble. In this situation, the network card would disconnect itself from the network and
connect the network cable such that it bypasses the card in question. This means that
the total cable length between the cards either side of the disconnected one could be
8000 ft. (2400m), which is outside of the specification for the communications method
used (RS485). This trouble scenario could clearly be extended to more network cards
and this would add 4000 ft. (1200m) of cable length in each case.
A sensible trouble tolerance limit must therefore be suggested to enable the
performance of the system to be predicted. Because of the nature of the fire protection
system, its design is biased towards inherent reliability and failure of a network card,
although possible, is very unlikely. Fire control panels also have substantial back up
power systems. Therefore, the likelihood of a total power failure under operational
conditions is also extremely rare. A suggested tolerance level of one card failure is
therefore recommended. To guarantee operation of the system with one card failure it is
necessary to arrange the network so that a failure will not introduce more than 4000 ft.
(1200m) of cable between the two cards, which would be connected together by the
failure. This means that the total cable length between adjacent nodes should not be
more than 4000 ft. (1200m). It is not important how the 4000 ft. (1200 meters) is made
up i.e. it could be 350 ft. (100m) and 3650 ft. (1100m) or 2000ft. (600m) and 2000ft.
(600m).
Using these general rules and the specified or equivalent cable types will provide a
guaranteed performance of networks with plenty of tolerance.

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3.2.1 Wiring Scheme
NetworkNetwork NetworkNetworkNetwork AB
Panel 1
2 LOOP
Panel 2
2 LOOP
Panel 3
4 LOOP
Panel 4
4 LOOP
LCD
Annunciator
IN IN IN IN IN OUT
OUT
OUT
OUTOUT
2000 Feet
2000 Feet
1000 Feet2000 Feet
1000 Feet
When designing or installing a network of FireNET panels and annunciators, always be
aware of the following:
1. The panel network must be wired as a ring (Class A).
2. There should be no more than 4000 ft. (1200m) maximum cable length between
two adjacent segments.
3. A short circuit at Point A will automatically disconnect the shorted section and
announce a trouble condition at all panels but the entire network will continue
communicating.
4. A short circuit at Points A and B will automatically disconnect both sections and
announce a trouble at all panels. Communication will continue where a
connection exists; in this case, a network will be maintained between panels 1, 3
and the network annunciator, while another network will be maintained between
panels 2 and 4.
5. Open circuit troubles should allow the network to continue operating in the same
way as short circuit troubles.
6. Network cabling should be standard RS485 type for up to 64 nodes.
7. The minimum cable size for the FireNET Plus network is #20 AWG.

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3.2.2 Cable Type
The cable type used for the network connection should be suitable for RS-485
applications. Minimum wire size should be 20ga. twisted, shielded, stranded. RS485
communications cable is typically standard Class 2 communications cable. However,
depending on the AHJ, FPL or FPLR cable may be required. Follow local jurisdictional
and AHJ requirements. NFPA 70 national electric code compliance may be required for
network cabling depending on local jurisdiction, AHJ, regulations, and/or codes.
3.2.3 Proper Shield Termination of the Network Cable
In many installations, interference from RFI, EMI or other noise sources can create
problems. In order to reduce the effects of such noise, terminate the shield to the earth
ground terminal block in the main control panel. DO NOT ground the shield at both ends
of the cable!

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WARRANTY
Hochiki America Corporation manufactured equipment is guaranteed to be free from
defects in materials and workmanship for a period of one (1) year from date of original
shipment. HOCHIKI will repair or replace, at its option, any equipment which it
determines to contain defective material or workmanship. Said equipment must be
shipped to HOCHIKI prepaid. Return equipment will be prepaid by HOCHIKI. We shall
not be responsible to repair or replace equipment which has been repaired by others,
abused, improperly installed, altered or otherwise misused or damaged or exposed to
conditions outside the products specifications in any way. Unless previously contracted
by HOCHIKI, HOCHIKI will assume no responsibility for determining the defective or
operative status at the point of installation, and will accept no liability beyond the repair
or replacement of the product at our factory service department. Please contact
HOCHIKI’s Sales department for proper procedure for claims and return of merchandise.
Hochiki America Corporation
7051 Village Drive, Suite 100
Buena Park, CA 90621-2268
1-800-845-6692
[email protected]
End of Manual
March 2009