Intercom Paging and Bells System

Intercom Paging and Bells System
______________________ Public Schools
12/15
SECTION 27 51 23 – INTERCOMMUNICATION SYSTEM
1.
GENERAL
1.1
DESCRIPTION
A.
The requirements of the contract documents, including the General and Supplementary General
Conditions and Division 1 - General Requirements shall apply to the work of this section.
B.
At the time of proposal, any exceptions taken to these specifications, all variances from these
specifications and all substitutions of operating capabilities or equipment called for in these
specifications shall be listed in writing and forwarded to the Architect / Engineer. Any such
exception, variances or substitutions which were not listed at the time of bid and are identified in
the submittal, shall be grounds for immediate disapproval without comment.
1.2
1.3
SCOPE OF WORK
A.
The work covered by this section of the specifications shall include all material, labor, hardware,
software, firmware and programming to install a complete and operating system as described
herein and shown on the drawings. It shall be complete with all necessary materials, labor,
hardware, software, firmware and programming specifically tailored for this installation. It shall
be possible to permanently modify the software on site by using a system administrator software
network interface.
B.
The intent of this specification is to maximize communications between the classroom and
administrative areas utilizing VoIP Technology while enhancing school safety and reducing
maintenance, operational, and installation costs.
C.
Under this specification, the system shall provide a complete VoIP Communication System for
the Administrative, Classroom, Cafeteria, Library, Common, and Recreational areas as indicated
on the drawings.
D.
The Communication System shall provide VoIP distribution of intercom, overhead paging,
emergency paging, class change time tones, emergency tones and program material.
E.
Any and all miscellaneous materials, labor, hardware, software, firmware and programming that
is not listed in this specification section that is required to provide a complete and operating
system shall be provided as part of the scope of work for this installation.
F.
The work covered by this section of the specifications shall be coordinated with any and all
trades that are affected by the installation of this system. All work is to be complete and as
required and specified elsewhere under these project specifications.
G.
All of the actual required system components and cabling are not shown or specified as this
varies between acceptable manufacturers and suppliers. It shall be the responsibility of the
contractor to obtain this information from the acceptable supplier and or manufacturer and
include cost of same in his bid.
APPLICABLE CODES AND STANDARDS
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A.
All devices of the system shall be listed by UL (Underwriters Laboratory). All components of the
system shall bear the UL label.
B.
The system shall be installed in strict accordance with all the requirements of the National
Electric Code.
C.
The system shall be installed in strict accordance with the requirements of the Americans with
Disabilities Act (ADA).
D.
The system shall be installed in strict accordance with the requirements of all other applicable
codes as well as all Federal, State and local codes.
1.4
RELATED DOCUMENTS
A.
1.5
Secure any and all required permits and approvals prior to installation.
RELATED WORK
A.
The contractor shall coordinate work in this section with all related trades that the system affects
or integrates with. Work and / or equipment provided in other sections and related to the system
shall include, but not be limited to the following:
1.
Cable support system
B.
Submittals
C.
Furnish to the Architect / Engineer complete equipment submittal technical specification sheets
and shop drawing submittals in .pdf format for this system including but not limited to the
following:
1.
2.
A material list with the quantity of each piece of equipment, names of manufacturers,
model numbers and the technical data information on all equipment the contractor
proposes to install. This material list is to be broken out and listed by Specification
Section, per piece of equipment. If a piece of equipment is needed but not listed in this
specification section, it shall be listed in the area of the submittal it pertains to. The
technical information is to be a piece of the manufacturers printed literature that is
produced by the equipment manufacturer. Internet web page listings will not be accepted.
Provide a description of any special installation procedures that will differ from what is
specified or shown on drawings.
Complete system circuit diagrams of the entire system, point to point on scaled floor plans
scaled to match that of the scale of the project documents. The shop drawings are
required to clearly illustrate how all components relate to each other and how they
interconnect to each other. A complete point to point wiring diagram of any and all panels
and how they interconnect with all the components and or devices that are part of the
system as well as any ancillary devices that are being provided by other trades. All cable
runs are to be shown on the shop drawing submittals. Cable tags shown on the shop
drawing submittals shall correspond with cable tags that are located inside equipment
enclosures as well as documented on the as-built drawings. The shop drawing submittals
shall include scaled drawings of all racks, panels, consoles and special assemblies. The
shop drawing submittals shall include all circuit numbers for all cables and terminal
connections as well as how they are labeled. Each drawing shall have a descriptive title
and all subparts of each drawing shall be completely described. All drawings shall have
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3.
4.
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the name of the project, Architect / Engineer and contractor in the title block. The floor
plans, room names and numbers for the submittal drawings are to match that of the
project documents. The symbols used on the submittal drawings are to match that of the
project documents. The only information to be shown on the submittal drawings for this
Specification Section is information that pertains to the system that is being submitted on.
Provide a custom detailed description of the operation of the submitted system for this
particular installation and a statement listing every technical and operational parameter
wherein the submitted equipment varies from what was originally specified. If the
submitter fails to list a particular variance and his submittal is accepted; but subsequently,
deemed to be unsatisfactory because of the unlisted variance, the submitter must replace
or modify such equipment at once without cost to the Owner. A letter or certificate from
the manufacturer stating that the system contractor is an authorized distributor and
installer of the submitted equipment shall be supplied.
The contractor shall be responsible for providing to the Architect / Engineer any and all
additional information required and as deemed necessary by the Architect / Engineer for
submittal and shop drawing submittal review.
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1.6
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QUALITY ASSURANCE
A.
This specification section shall be a one (1) manufacturer responsibility or as specified herein
with no exceptions. Any variances to this specification item shall be submitted to the Architect /
Engineer ten (10) working days prior to proposal for review by the Architect / Engineer. The
equipment manufacturer for this specification section to have been in business and
manufacturing the specified equipment for a minimum of ten (10) years.
B.
The contractor must be the factory authorized and factory certified distributor and installer of the
equipment to be provided for this specification section. The installation contractor’s factory
certification is to be submitted to the Architect / Engineer as part of the contractor’s
subcontractor and material list at the time of the bid as well as with the shop drawing submittal.
C.
The contract for the systems described herein will be assigned to the general contractor for the
building construction. The intercommunication system contractor shall coordinate all work and
work sequencing with the general contractor.
D.
Owner and Architect / Engineer Inspections: The Owners technology staff and Architect /
Engineer will provide advising as requested. The Owners technology staff will inspect the project
as the work progresses. Prior to final acceptance of the work, the Contractor shall make
arrangements with the appropriate authorized Owner personnel to inspect the construction
areas, both to ensure satisfactory completion of the work and to ensure complete cleanup and
restoration of areas affected by the work. Temporary protection, coverings, and structures shall
be removed at or before time of inspection.
1.7
CIRCUITING GUIDELINES
A.
All wiring shall be Cat. 5/5e/6/6e for connections to speakers, call switches, etc… for future
migration to a complete IP based intercom paging system.
B.
All wiring shall be listed for the intended purpose. The cabling shall Cat. 5/5e/6/6e for all
connections from the IDF to the classroom and or zone origination point. All classrooms shall be
homerun to each local IDF that serves that area. There shall be no cabling required from the
IDF to the MDF as this is accomplished through the shared or dedicated network devices and
infrastructure. All interior wiring shall be in accordance with construction guidelines suggested
by the Manufacturer; including the speaker and the call-in switch.
C.
The Remote Intercom Device (RID) shall provide connection for a talkback speaker or audio
system with room microphone and call in switch in a remote classroom location. This device
shall provide intercom, class change tones, emergency tones, and normal / emergency paging
via a wireless or wired network to these remote locations.
D.
Each classroom / educational space to have a dedicated intercom paging circuit or a network
connection to the intercom paging system head-end or remote network intercom expander to
provide 2-way communications from the administrative console(s) or building telephone system
handset to each classroom / educational space individually.
E.
Each office / administrative space to have a dedicated intercom paging circuit or network
connection to the intercom paging system head-end equipment or remote network intercom
expander to provide 2-way communications from the administrative console (s) or building
telephone system handset to each office / administrative space individually.
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F.
Each corridor / common space (cafeteria, gymnasium, auditorium, etc…) to have dedicated
speaker circuits to the intercom paging system head-end or remote network intercom expander
to provide 1-way communications from the administrative console (s) or building telephone
system handset to each corridor / common space individually.
G.
Each paging horn to have dedicated speaker circuit to the intercom paging system head-end or
remote network intercom expander to provide 1-way communications from the administrative
console (s) or building telephone system handset to each paging horn individually.
H.
All wiring shall be in accordance with the Manufacturer’s specifications.
1.8
SEQUENCE OF OPERATIONS
A.
The ability to be distributed via a fiber 10/100/1000mB switched, VLAN enabled network or
10/100/1000mB switched stand-alone intercom network. It shall be possible to eliminate the
need for copper feeder cables between the Main and Intermediate distribution frames through
the use of fiber optics. Fiber optic connected IDFs shall be capable of serving up to seven
hundred-twenty (720) zones of intercom/paging and shall feature the ability to support clock
correction and/or door relay control signals from any other fiber optic connected IDF in the
system.
B.
Shall have SIP Integration to connect all talk-paths to the VoIP phone system of choice. This
integration shall give the phone system vendor the option of utilizing their existing VOIP console,
or any other VoIP system, including hosted VoIP systems to manage the 2-way communications
to the classrooms.
C.
Direct dialed, two-way communication from all administrative telephones to any location
equipped with a talkback speaker or audio system with room microphone.
D.
Automatic or manual gain control on intercom speech to assure constant talkback speech level.
E.
System shall interface with any VoIP telephone system, utilizing SIP integration thus allowing the
school(s) to upgrade or replace their telephone system without suffering a requirement to
replace, or lose any feature of, their internal communications (intercom) system. Any system
that limits system features based upon any selected telephone system, and is not SIP
interfaced, shall not be acceptable.
F.
Automatically sound a tone or play a pre-page WAV file over any loudspeaker connected for
two-way communication to alert the classroom teacher that this 2-way call has been established.
This is intended to prevent unauthorized monitoring.
G.
Distribution of emergency announcement(s) from any authorized telephone to all areas
furnished with a loudspeaker. Emergency announcements shall have the highest system priority.
H.
Distribution of general announcements from any administrative telephone, staff telephone, or
classroom telephone. The system shall be capable of providing all-call, group call, or multiple
group call groups.
I.
Classroom speakers or audio systems with room microphone shall be software assignable to
any or all paging groups.
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J.
Provide the ability to define and archive up to ninety-nine (99) time tone schedules with up to two
hundred fifty-five (255) events per schedule. Each scheduled event shall be capable of
controlling any one of six (6) internal tones; user selected custom audio/voice phrases, audio
from any of three (3) auxiliary sources or up to forty (40) relays for building control. Each
scheduled audio event shall be distributable to any audio groups. Schedule administration,
modification and creation functions must be available through administration PC software and
web access on remote computers and mobile devices.
K.
Provide 1, 2, 3 or 4 digit numbering plan, thus allowing the classroom speaker and the
classroom telephone to be the same architectural number.
L.
The WAV files shall be activated via the administration software, telephone and / or telephone
system and / or pushbuttons.
M.
The WAV files shall be have the ability to be broadcast via a schedule for any day of the week or
time of the day. They shall also have the ability to be broadcast for any duration of time and
repeat number of plays with the ability to select how long the duration is between each repeated
broadcast.
N.
The WAV files shall also have the ability to be a part of the class change tones within the
system. These files shall be able to replace any tone within the class change schedules as to
offer the flexibility of customizable tones and or phrases in this class change mode.
O.
The WAV files shall be programmable as to replace the hands-free alert tone, repeated alert
tone, or the all call alert tones.
P.
All admin access path ports shall be integrated via SIP protocol. This integration shall be
seamless and easy to meet all standards as set forth in SIP type interfacing. The VoIP Phone
System Call Manager shall be used to manage these ports for control and management thus
reducing moves, additions and change costs.
Q.
System shall have the capability of distributing audible pages as well as tones (emergency, class
change, etc…) generated from the intercom system through the VoIP classroom telephones with
the classroom telephones being grouped in with the intercom system paging groups / zones.
R.
It shall be possible without the cost of additional hardware/software to incorporate a LAN / WAN
district-wide paging system by means of the built in VoIP district paging adapter or district
software. This adapter shall give the district the ability to page each school independently, as a
group of schools, or all schools.
1.9
WARRANTY
A.
The manufacturer and installation contractor shall guarantee the system, equipment and all its
components for a minimum of one (1) year from date of final acceptance of the system as
documented by the Architect/Engineer. This guarantee shall cover the replacement of all parts
and labor to replace the same made necessary by normal usage and wear.
B.
Upon completion of the installation of the system, the contractor shall provide to the Architect /
Engineer and Owner a signed written statement, on company letterhead, substantially in form as
follows: "The undersigned, having engaged as the Intercom paging system contractor for the
ABC School building project confirms that the system was installed in accordance with the wiring
diagrams, instructions and directions provided by the manufacturer."
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C.
Contractor shall repair, adjust, and/or replace, whichever the Owner and or Architect / Engineer
determines to be in its best interests, any defective equipment, materials, or workmanship, as
well as such parts of the work damaged or destroyed by such defect, during warranty period, at
the contractor's sole cost and expense.
D.
In the event that any of the equipment specified, supplied, and/or installed as part of the work
should fail to produce capacities or meet design specification as published or warranted by the
manufacturer of the equipment involved or as specified in this document, the contractor shall, in
conjunction with the equipment manufacturer, remove and replace such equipment with
equipment that will meet requirements without additional cost to the Owner.
1.10
A.
TRAINING AND INSTRUCTION FOR OWNER MAINTENANCE
A training program including a minimum of four (4) hours on the use of the system will be
provided to the Owner to use at their discretion. A full and complete overview of the system will
be included in this training as well as any literature required by the Owner to allow complete and
total use of the system by the Owner’s designated staff. System maintenance requirements for
the equipment will also be documented and turned over to the Owner. This training will be
recorded and archived in CD/DVD format and turned over to the Owner for archiving purposes.
The Contractor will provide any required materials and staff to record the training.
2.
PRODUCTS
2.1
ACCEPTABLE MANUFACTURERS
A.
The following manufacturers are approved to submit proposals for this project:
1.
2.2
Audio Enhancement
EQUIPMENT
A.
Intercom Paging System:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Shall be SIP Integrated to the VoIP telephone system
Shall utilize a shared data network (VLAN enabled) or dedicated network as means of
distribution for all voice overhead paging, emergency paging, emergency tones, intercom,
and class change tones
Shall be capable of accessing remote classrooms (trailers, temporary classrooms etc.)
via IP Talkback Speakers or room audio system with room microphone. This shall
provide intercom, class change tones, emergency tones, and normal / emergency paging
via a wireless or wired network to these remote locations.
Exterior speakers shall be capable of being on separate zones and programmed
separately
Shall be capable of expanding to seven hundred-twenty (720) points. A point is defined
as a call-in switch or speaker output
Provide pre-alert tone to classroom for intercom calls and general announcements
Ability to produce user defined tone signals for time tones or emergency tones
Ability to control wireless or wired clocks provided by others
Ability to sync system time to the local network NTP time server
Ability to select the tone on an all-call basis from any, or selected, administrative
telephones.
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11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
B.
Expansion of the intercom system shall be capable of expanding utilizing standard
network hardware. Any system that requires proprietary expanders or proprietary switches
shall not be considered
Intercom Paging System Power Supply:
1.
E.
Middle Atlantic ERK-4425 or engineer approved equal.
Intercom Paging System Expansion:
1.
D.
Provide an Ethernet port, which will give ability to monitor operations and functions of the
systems
Provide web-based off-site programming and diagnostics of the system. It shall also be
capable of determining basic circuit faults
The system shall be capable of simultaneous conversations between administrative ports.
The system shall have a Windows® based PC administration programming tool which
allows the administrative personnel to easily manage Audio Sources, Class Change
schedules, paging groups, time updates, holiday schedules and day/night mode operation
from their desktop PC. Systems that require propriety consoles, special LCD displays or
solely utilize DTMF for changes to perform these functions shall not be acceptable.
System shall provide calendar based scheduling up to one year in advance
The system shall be programmable via Ethernet or direct COM port cable connection
The system shall provide 2-way handsfree communication in each classroom
Provide call confirmation tone at speaker when an intercom call is placed
The system can automatically broadcast page emergency instructions throughout an
entire school when an alarm (e.g. lockdown, lockout, security, fire) is tripped or manually
activated. The emergency instructions are preprogrammed and require no user
intervention. The system provides redundant alarm annunciation over intercom/paging
speakers and is not meant to replace primary fire alarm or security systems.
The platform shall provide the ability to initiate school safety paging announcements,
evacuation tones and take cover tones from any telephone within the facility or outside the
facility to any other location within the facility or district.
IP-enabled two-way voice communication shall be available from any provided telephone
or administrative console through any speaker in the system. This shall allow hands-free
communication to any classroom or any individual loudspeaker unit. A programmable
pre-announce tone shall sound immediately before the intercom path is opened and a
supervisory tone shall continue to sound at regular intervals when speaker monitoring is
active, complying fully with all privacy legislation. Pre-announce tone and supervisory
tones shall be disabled during designated emergencies automatically.
Provide emergency override on board voice messaging.
Intercom Paging System Equipment Rack:
1.
C.
12/15
Power shall be supplied through the standard shared network data switches. Systems
that require a separate power supply for the paging system hardware shall not be
considered
Intercom Paging System On-Line UPS Battery Back-Up System:
1.
UPS system to provide a minimum of one (1) hour of battery backup.
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F.
Intercom Paging System Administrative Console: (Audio Enhancement SAFE Commander
Software)
1.
2.
3.
4.
5.
G.
The administrative console shall be capable of operating on a standard windows
environment, and shall be able to run on a physical or virtual machine.
The administrative virtual console is to be customizable, flexible and provide full access to
the intercom paging system.
The administrative console shall be available via a software console, or web based
console.
The administrative console shall be capable of being any administrative computer.
Functionality to provide full access to all features such as all call, paging groups,
emergency tones, control music, WAV file distribution, test rooms, crisis mode,
schedules, etc.
Intercom Paging System Push to Talk Microphone – Admin Office
1.
2.
2.3
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Provide a push to talk microphone with network interface at the administrative office.
Push to talk microphone network interface shall be Audio Enhancement MS-250
COMPONENTS
A.
Intercom Paging System Standard / Emergency Call-In Switch with Volume Control:
1.
2.
B.
Common Area Zones
1.
2.
C.
The "Normal" call switch shall be a momentary pushbutton style switch with an
accommodation to prevent accidental activation.
The unit shall be compatible with single gang electrical boxes.
Provide one network interface for each common area zone defined on the drawings.
Common area zone network interface shall be Audio Enhancement MS-250 – no
substitutions.
Provide a 70 Volt amplifier and appropriate number and style of speakers to adequately
cover each common area zone as defined by the drawings.
Intercom Paging System Ceiling Speaker. Speaker Style shall be appropriate to the
manufacturer selected:
1.
Speaker Specifications
1.
Provide complete distributed ceiling mounted speaker system (metal back box,
speaker, grill, etc.). number as required (minimum 4, no cluster) with
performance and safety features as follows:
2.
a.
Frequency Range: 70 Hz to 15 kHz (-10 dB)
b.
Frequency Resp: 100 Hz to 14 kHz +/- 3 dB
c.
Power Handling: 50 Watts continuous
d.
Driver type: 4 in. (102 mm) Cone
e.
System type: Tuned and vented
f.
Sensitivity:
88 dB 1 Watt/1 Meter
g.
Impedance:
8 Ohms nominal
h.
Mounting:
Integrated C-Clamp
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i.
j.
k.
l.
m.
n.
D.
2.
3.
4.
5.
6.
7.
8.
The ceiling flush mounted speaker shall consist of speaker, volume settings and round
grille.
The speaker assembly, housing and hardware shall be electrically and acoustically
matched for a frequency response of 60 Hz to 12 kHz.
The speaker element shall be cone type with 5 oz (142 g) ceramic magnet.
Diameter of speaker cone shall be 8.0" (20.32 cm) with 2.0" (5.08 cm) whizzer cone.
Voice coil diameter shall be .75" (1.91 cm).
The grille shall be constructed of steel, finished in semi-gloss white enamel.
Maximum dimensions of the grille shall be: 13.0" (33.02 cm) diameter x 3.0" (7.62 cm)
deep.
Shipping weight shall be approximately 3.75 lbs (1.7 kg).
Intercom Paging System Surface Wall Speaker:
1.
2.
3.
4.
5.
6.
7.
8.
9.
F.
Plenum rating: Speaker back can meets UL2043 criteria for plenum
installation
Terminals:
All metal spring terminals
Dimensions:
Depth 5.8 in. (147.3 mm)
Grill Diameter: 8.5 in. Dia. (216 mm)
Mounting hole : 7.0 in. (178 mm)
Weight:
3.0 lbs. (1.36 kg)
Intercom Paging System Surface Ceiling Speaker:
1.
E.
12/15
Wall speaker shall consist of a speaker, volume settings and sloped baffle.
The speaker, housing and hardware shall be electrically and acoustically matched for a
frequency response of 60 Hz to 12 kHz.
The speaker shall be 8” (20.32 cm) in diameter and have a ceramic magnet weighing 5
ounces.
The voice coil shall be .75” (1.91 cm) in diameter.
Voice coil impedance shall be 45 ohm.
Operating temperature shall be -20 to + 55 °C (-40 to + 131 °F).
The baffle shall be constructed of gray painted steel with a black cloth grille.
Maximum dimensions of the housing shall be 10.13” (25.73 cm) H x 12.31” (31.27 cm) W
x 4.63” (11.75 cm) D.
Approximate weight is 4.25 lbs (1.91 kg).
Intercom Paging System Paging Horn:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
Shall a weather-resistant, high efficiency reentrant type horn speaker.
Shall be equipped with an amplifier and externally accessible volume control.
Shall include an adjustable swivel base.
The frequency response shall by 275 Hz to 14 kHz.
Dispersion shall be 90° horizontal and 90° vertical.
Sound pressure level shall be 121 dB measured at 4 feet (1.22 m) on axis with an input to
the amplifier module being -10 dBm at 1 kHz.
Distortion shall be less than 2.0% at rated output of 15 watts RMS.
Input impedance shall be 600 ohms nominal.
The amplifier shall operate on a -24 Vdc nominal, positive ground power supply.
Operating current shall be 900 mA at -24 Vdc
Operating temperature shall be -4 to 131 °F (-20 to 55 °C).
Operating humidity shall be 0-95% noncondensing.
Dimension of the horn shall be 8” (20.3 cm) W x 8” (20.3 cm) H x 9:” (22.9 cm) D.
Weight shall be approximately 4.0 lbs (1.8 kg).
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G.
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Classroom Sound Reinforcement System: (Audio Enhancement MS-450 System – No
Substitutions)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
A classroom sound reinforcement system shall be installed in all areas of the building as
shown on the drawings and as listed in the specifications.
Classroom sound reinforcement system shall be fully interfaced to the intercom paging
system.
The output of the intercom paging system shall directly interface to the classroom sound
reinforcement system.
The sound reinforcement system shall be capable of integrating with the facility
intercom/paging system. This integration must allow the wireless microphone to place a
call-in to the facility communication system. All sound reinforcement systems must allow
the facility intercom/paging system to directly mute them. The receiver module must have
the capability to sense a paging signal from the facility communications system. When a
page has been sensed, the classroom sound system must mute local audio to facilitate
hearing the facility page. The sound reinforcement systems must be equipped to allow the
installer to choose either a signal (e.g. page to classroom) based classroom sound
reinforcement system override or a settable 5~30 second timer-based classroom sound
reinforcement system override.
This integration shall give positive control when interfaced to the classroom sound
reinforcement system within the system as to cut off or duck all sources within the
classroom when an intercom or page announcement is made from anywhere within the
school.
The intercom paging system speakers have the option of being part of the speakers
utilized for the classroom sound reinforcement system.
The intercom paging system speakers may be connected to receive audio from any of the
in room sources or only receive audio from the intercom paging system.
The classroom sound reinforcement system shall be either in-wall or shelf mounted
anywhere within the classroom.
The infrared sensor shall be capable of being mounted directly to the speaker utilizing
Cat. 5/5e/6/6e cable.
Each microphone input shall have a carrier detect indicator to verify the input is active.
The microphone inputs shall have class of service programming as to allow ducking or
cut off when an all call or emergency page is detected from the intercom paging system.
The classroom sound reinforcement system shall have a low level output to connect to
self-amplified speakers or other audio equipment if needed. This output shall have a
volume control.
The classroom sound reinforcement system shall have an emergency cut-off input that
when interfaced to the fire alarm relay contact output shall silence all audio devices within
the room in the event of a fire as to help lower the overall decibels levels to help the
students and staff hear the audible fire alarm tones / instructions within that room.
The classroom sound reinforcement system shall be capable with interfacing to future
classroom cameras to capture lesson video and audio together on one recording.
The wireless microphone shall provide a button to mute the classroom sound system.
The wireless microphone must be capable of adjusting the volume of external audio
sources that are connected to the main control unit. The wireless microphone must be
powered by a single rechargeable battery. The wireless microphone must be able to
operate for up to a typical eight (8) hour workday on a single charge.
Each classroom sound reinforcement system shall include but not limited to the following
components:
a.
b.
c.
Paging Bells & Intercom System
Infrared receiver / amplifier
Two (2) wireless microphones with rechargeable NiMH or LiON batteries
Four (4) ceiling speaker
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2.4
CABLE
A.
Intercom System Cabling:
1.
2.
3.
4.
1.2
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West Penn
Belden
General Cable
Mohawk
TEACHER PERSONAL ALERT SYSTEM (BASIS OF DESIGN – AUDIO ENHANCEMENT SAFE
SYSTEM)
A.
SAFE System Controller (Audio Enhancement – SAFE Controller)
1.
Provide a system administration and management appliance as part of the
teacher personal alert and camera system. This appliance shall be powered
solely by POE provided by the school’s network. This will insure that the system
will be maintained during a power outage based on the district provided
uninterruptable power supplies.
2.
The SAFE System Controller shall periodically pole every device which is part of
the SAFE System. It shall monitor every device on a schedule not to exceed 200
seconds.
3.
The SAFE System Controller shall maintain a log of all network transactions,
including failed polling of a device.
4.
The SAFE System Controller shall manage all network transactions regarding the
SAFE System. The Controller shall be responsible for alerting the MS-1000 when
a SAFE Alert has occurred.
5.
The SAFE System Controller shall provide a robust e-mail service, which will
allow the unit to notify appropriate response personnel when an alert occurs, or
when part of the SAFE System is offline.
B.
Administration Notification Box (Audio Enhancement – MS-1000)
1.
Paging Bells & Intercom System
Provide an alert system for the front office of the school. Provide a minimum of 1
system per building or as specified. All systems shall have the following features:
a.
Capable of receiving and distinguishing XML messages from every
classroom alert system in the school
b.
Connections
i.
24 Volts Power
ii.
Network Connection
iii.
Dry Contact Relay Connections – Provide connections
for Normally Closed, Normally Open, and Common for
each of the relays provided with the system.
c.
Controls
i.
Alarm Reset/Test Button
ii.
Up & Down arrow to scroll through alerts
iii.
Alarm Cancel
iv.
Dry Contract Relays
1. Provide 3 double pole, double throw dry contact
relays, which are activated upon receiving an
alert message.
d.
Indicators
i.
Power – LCD Illumination
ii.
2-Line LCD Display – Displays location and date/time of
alert that is received
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iii.
iv.
3.
EXECUTION
3.1
INSTALLATION
Audible Alarm
Visual Alarm (strobe)
A.
The entire system shall be installed in a workmanlike manner, in accordance with approved
manufacturers wiring diagrams and these specifications. The contractor shall furnish all
conduits, cable tray, surface raceway, wiring, outlet boxes, junction boxes, cabinets etc… as well
as all required miscellaneous materials and labor necessary for the complete installation of the
cable support / pathway system.
B.
Wiring may be opened wired in cable tray or "J" hooks above accessible suspended lay-in
ceilings. Wiring in walls or exposed on walls shall be enclosed in EMT conduit. Cable to be
supported at a minimum of every 5’.
C.
A nylon pull string is to be installed in each conduit / surface raceway run.
D.
Any locations where flexible metal conduit has to be used, it is to terminate to a junction box on
both ends and be securely anchored for proper support.
E.
Conduit indications in the drawings are a minimum standard.
F.
All equipment shall be mounted with sufficient clearance for observation, servicing, testing and
accessible from either the floor or ladder. If any device is installed in a location that is deemed
inaccessible by the Owner and or Architect / Engineer, it will be moved to an accessible location
by the contractor at no additional cost to the Owner.
G.
The contractor shall supply access panels where required and as defined by the Architect /
Engineer. Contractor to notify the Architect / Engineer immediately if this issue arises during
construction.
H.
All penetration of floor slabs and firewalls shall be fire stopped in accordance with all Federal,
State and local codes.
I.
All wiring shall be color coded per National Electrical Code requirements and standards.
J.
All conduit ends are to have plastic grommets to protect cable from damage due to sharp edges
on the conduit.
K.
Mounting heights and mounting requirements are to be as shown on the drawings.
L.
All junction boxes are be clearly marked and labeled for easy identification. Flexible connectors
shall be used for all devices mounted in suspended lay-in ceiling panels. All conduits, outlet
boxes, junction boxes and panels shall be securely installed and anchored with appropriate
fittings and connectors to insure positive grounding throughout the entire system.
M.
No wiring except that of this system is to be installed in this systems cable support / pathway
system.
Paging Bells & Intercom System
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N.
Wiring splices are to be made only in designated junction boxes and tagged on both sides of the
junction. The junction is to be made on clearly labeled, insulated terminal strip. Transposing or
changing the color-coding of the cable is not permitted. Wire nut connectors are not acceptable.
System cable and the 120 Vac power cable are to be in separate conduits.
O.
It shall be the responsibility of the contractor to wire and connect ancillary devices to this system
as listed in this specification section.
P.
Any circuits leaving the building to the outside will be protected by the appropriate transient
protection devices as required by the manufacturer to avoid damage to the system if transient
surges are inducted on to these circuits (i.e., lighting strikes).
Q.
Contractor to provide in-wall bracing support for all devices that are to be wall mounted to walls
that are not masonry block walls.
R.
All devices are to be protected throughout the entire project. All devices are to be kept free of
construction dirt and debris during the entire project. The contractor will be responsible for
replacing at no additional cost to the Owner any devices that are deemed dirty or unsuitable for
use by the Owner and or Architect / Engineer throughout the entire project.
S.
All cabling and devices are to be labeled with type written labels. Device labels and cable labels
are to match the labeling information that is documented on the as-built drawings. Contractor to
coordinate labeling schemes and labeling requirements with A/E prior to commencing with final
labeling. Labeling system is to be by Brady or Panduit.
3.2
FIELD QUALITY CONTROL
A.
3.3
The system shall be installed and fully tested as listed in these specifications. The system shall
be demonstrated to perform all features and functions as listed in these specifications at a
minimum.
TESTING
A.
Reports of any field-testing during the system installation shall be forwarded to the Owner and
Architect / Engineer for review and comment.
B.
Each individual system operation on a circuit-by-circuit basis shall be tested for its complete
operation. Any devices that are to be connected to the system will be tested as specified. Device
locations and address / circuit numbers are to be documented on the as-built drawings as well
as the wiring configuration of the device circuits. Device locations will be field verified by the
contractor and are to include any costs in the bid that is relating to all devices being connected
to the system. The procedure for testing the entire system shall be set forth in these
specifications and with the consent and approval of the Architect / Engineer, Owner and
equipment manufacturer. Confirm testing requirements with the Owner and Architect / Engineer
prior to commencing with system testing.
C.
Perform the tests and adjustments necessary to assure the satisfactory quality and level of
performance of the system under normal operating conditions.
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D.
Establish the normal settings for all controls and devices for all system operational and
functional features and record the same for future reference. All levels shall be set and
recorded in the as-built documentation for optimum system performance.
E.
The installation technician from the installer / manufacturer shall perform all system tests as
specified. Perform all tests in the presence of the Owner, Architect / Engineer and any
designated personnel as deemed necessary by the Owner or Architect / Engineer. This test
must be performed with the devices at their operational location and under normal operational
conditions. Bench or default settings for devices are not acceptable. All test and test report costs
are to be included in the contractors bid. A checkout report will be generated by the installation
technician and submitted to the Owner and Architect. The report shall include but not be limited
to the following:
1.
2.
3.
4.
5.
F.
A substantial completion test will be performed before the final test and acceptance of the
system by the Owner and Architect / Engineer. At the time of the substantial completion system
test, provide to the Owner or his representative an oral explanation of the operation and
maintenance of the system. Before starting the tests and adjustments listed above, the
contractor shall submit the following to the Owner and the Architect / Engineer for review during
the substantial completion test:
1.
2.
3.
G.
3.4
A complete list of all equipment installed with corresponding serial numbers.
Indication that all equipment is properly installed, functions and conforms to the
specifications.
Serial numbers, locations by device and model number for each installed device.
Technicians name, specified certification credentials and date of system test.
Any additional information as deemed necessary by the Owner and or Architect /
Engineer.
Preliminary as-built wiring diagrams of the entire system.
Preliminary copy of the operation and maintenance manuals.
Preliminary copy of the system test report form.
If no system performance issues arise during the substantial completion test that need to be
repaired by the installation contractor, this can be approved as the final system test by the
Owner and or Architect / Engineer. If there are performance issues that arise that do need to be
repaired, another complete and comprehensive system test will be scheduled and performed to
show that the necessary repairs have been properly addressed. These tests will be performed at
no cost to the Owner until a time that the system is shown to be in complete operating condition
as approved by the Owner and Architect / Engineer.
DOCUMENTATION AND TRAINING
A.
After the final system test and the Owner and Architect / Engineer has accepted the system to
be in the proper operating condition, the contractor shall compile and provide to the Owner three
(3) complete operation and maintenance manuals and three (3) sets of as-built drawings on the
completed system to include but not be limited to the following:
1.
2.
Operating and maintenance instruction sheets for each piece of equipment showing the
proper operation and maintenance of the system component.
Individual factory issued operation and maintenance catalog brochures of all equipment
and components that were installed as part of the system. Advertising brochures,
submittal data sheets and operational materials are to also be included but shall not be
used in lieu of the required technical manuals.
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3.
4.
5.
B.
12/15
Complete as-built wiring diagrams and floor plan drawings of the complete system
installation showing how the system was installed. These drawings are to include any
devices that are connected to the system with their address / circuit number documented
as well as the wiring configuration of all device circuits. The as-built drawings will be an
updated and revised copy of the submittal drawings showing all modifications made
during the installation of the system. A copy of the as-built drawings in electronic format
on CD/DVD generated in AutoCAD Release 2014 or higher will be forwarded on to the
Owner and Architect / Engineer for archiving in the operation and maintenance manuals.
A statement of guarantee including the date of the termination of the warranty as well as
the phone number of the person to be called in the event of equipment failure.
A cover letter, for the above mentioned tests, certifying the entire system and its
components, application and installation meets or exceeds the recommendations of the
manufacturer, all applicable code requirements and test specifications.
The final and installed version of the system software will be provided to the Owner on a
CD/DVD for storage in the operation and maintenance manuals. These manuals shall be used
for final check out of the system.
END OF SECTION 27 51 23
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