AUDIO /VISUAL SYSTEM

PART 1 GENERAL
1. Related Documents
2. Scope of work
3. Description of Work
4. System component
5. Reference Coded and Standards
6. Submittals
7. Quality assurance
8. Coordination
9. Spare parts
PART 2 PRODUCTS
1. General
2. equipments and material
PART 3 EXECUATION
1. Examination
2. Installation of basic identification
3. Installation of the network
4. Filed quality control
5. Training
6. Warranty
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SECTION 16755
AUDIO VISUAL SYSTEM
PART 1 GENERAL
1.1 RELATED DOCUMENTS
„h Drawings and General Provisions of the Contract,
including General Conditions, Conditions of Particular
Application and Division-1 Specification Sections, apply
to work of this Section.
„h Bill of quantities
„h Related section
1. Grounding section 16452
2. conduit and fitting section 16110
3. Basic materials and methods section 16050
4. Cable trays section 16114
5. wires and cables section 16120
.
1.2 SCOPE OF WORK
The scope shall include but not limited to the following
„h Supply system equipments according to approved list of
materials
„h Handle and store equipment in appropriate environment
condition
„h Install system devices according to system specification
„h Start up system
„h Programming system according to required function and
specification
„h Test and commission all system according to related
specification documents
„h Put into operation all system components
„h Provide all other services as indicated in this
specification
„h Provide necessary documents and final shop drawing for
obtaining approval from authorities having jurisdiction
1.3 DESCRIPTION OF WORK
This section covers audio visual systems working at Meeting
Room
The system shall be consisting of:-
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„h Audiovisual sources
„h Main distribution equipment including cross-point
matrix
„h Touch screen main control system
„h Smart Board Screen
The system shall be used intelligent control system to distribute
Audio/ Visual sources to main screen.
1.4 SYSTEM COMPONENTS
Equipments at Meeting room shall consist of:-
„X Audio/ visual sources
1. DVD player
2. Double auto revere cassette
3. multi CD player
„X Intelligent control and distribution system
1. Matrix controller 8 inputs X 4 outputs cross point
with built in scalar
2. Video Projector
„X Display units
1. Smart Board
„X Audio system
1. Mixer Preamplifier
2. Power Amplifier
3. Digital Equalizer
1.5 REFERENCE CODES AND STANDARDS
Equipment and installations shall comply with the current
stipulations of the local authorities in the KSA and the standards
of:
- Consultative Committee International for Radio CCIR.
- Electronic Industries Association EIA
- International Organization of Standardization ISO
1.6 SUBMITTALS
Submit the following in accordance with Conditions of the
Contract and Division-1
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The Vendor should indicate specifically the country of origin of
every piece, connector, cable, software and any part of the
solution
General: Submit the necessary complete sets of documentation
indicating the type, size, rating, style, manufacturers' names,
photos, catalog and data sheets for all items including
specifications and installation instructions to ensure compliance
with Specifications.
Submit detailed riser diagram for the system indicating all
quantities, models etc..
Submit Rack details indicating rack size, and all housed
equipment sizes.
Submit Instruction Manual: This documentation shall be
subject to the approval of the Engineer and no equipment shall
be ordered without this approval, for all equipment and devices,
which are indicated by the documents (Drawings, BOQs, etc..).
Shop Drawings: After receiving letter of acceptance with two
weeks, the contractor shall provide detailed shop drawings
indicating equipment/ device locations and connecting wiring of
network, detailed drawings of the network and complete wiring
diagrams of all the system constituents, cable size, type and
numbers
Maintenance Data: Submit maintenance data and parts lists for
each type of network equipment installed, including ancillary
equipment and furnished specialties and accessories. Includes
standard product maintenance manual
1.7 QUALITY ASSURANCE
The products specified in this document shall be supplied and
produced by a single manufacturer/supplier, with the exception
of Data racks, Floor boxes, conduits, labels, and trays.
Manufacturer shall have a minimum of ten (10) years experience
and shall be ISO 9001 and ISO 14001 (Environmental
Management) Certified. The entire system component should be
European or American manufactured.
1.7.1 Installer Qualifications: Installer firm shall have at least 5
years of successful installation experience in similar projects.
Installer should be certified from the manufacture for design,
install and maintain the provided system.
1.8 COORDINATION
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1. all interface protocols and required hardware and
software needed to submit and satisfy system operation
shall be part of this contact
1.9 SPARE PARTS
The system shall have spare parts not limited to:
1- NO. of (1) ceiling loud speaker
PART 2 PRODUCTS
2.1 GENERAL
Provide complete and fully functional Main Audiovisual
Distribution System using materials and equipment of types, sizes,
ratings and performance as indicated.
Audio visual system shall combine matrix controller to
distribute audio/ visual sources to main screen.
Matrix controller system shall be interfaced with Lighting
Control and HVAC system
The contractor is responsible of all other related work to have
the system work as specified drawing.
The scope includes also all the required equipment and material
even though which is not indicated in the documents. Contractor
shall provide all these material to have complete work without
any extra cost.
Design, installation and maintenance shall be carried out by the
contractor according to international standards and instructions
in order to complete the work with high standard and to avoid
missing information or maintenance problems.
The entire system component should be manufactured and
assembled in Europe or Japan or USA.
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2.2 EQUIPMENT AND MATERIALS
2.2.1 Multi CD Player:
CD player Type: rack mounted, high quality, capable of operating
continuously and having the following functions:
1. Direct access to the disks
2. Track programming capability.
CD player Programming: it should be possible to program the CD player
to select from any CD at any order for continuous play
„X Frequency response 20:20000 HZ
„X Total harmonic distortion 0.003%
„X Signal to noise ratio 106dB
„X Dynamic range 96dB
„X Power requirement 110:220 VAC @ 50/60 HZ
2.2.2 Double Auto Reverse Cassette:
Track system 4 track two channel stereo
Heads /deck (1) erase / (1) record
Tap speed Dual speed 4.76 cm/sec 9.52 cm/sec
Pitch control approximately +/- 10%
Frequency response 63 HZ: 16 KHZ +/- 3dB
Signal to noise ratio >79dB Dolby C. CCIR arm
>69dB Dolby B. CCIR arm
WOW and Flutter >15% WRMS
Distortion <2.5%
Line RCA Input -10dBV, 0.3V
Line RCA output -5dBV, 0.3V
Power requirement 110:220 VAC @ 50/60 HZ
2.2.3 DVD Player / Recorder:
Technical specification
General
„X Power requirement 110-220 VAC @50/60 Hz
„X TV format PAL
„X Audio frequency response 4HZ :44 KHz
„X S/N ratio 118 dB
„X Dynamic range 105 dB
„X Total harmonic distortion 0.0025%
„X WOW and flutter +/-0.001%
Recording
„X Recording format DVD-video
„X Recordable discs DVD-recordable
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„X Sampling frequency 3.5MHz
„X Compression format MPEG
2.2.4 Matrix Controller:
Matrix switchers used for video and audio routing applications,
including command and control centers at conference room support multi
format output HDTV ,S video and composite video .
Technical Specification:
„X Video Input / output 16/16
„X Gain unity
„X Bandwidth 150 MHz
„X Crosstalk -50dB @ 5HZ
„X Switching speed 200ns
„X Nominal voltage 1Vpp
„X Impedance 75ohm
„X Return loss <-30dB
„X Power requirement 110:220 VAC @ 50/60 HZ
2.2.5 Video Projector
Video projector technical specifications:
Number of Pixel 786
Resolution video 540TVL-RGB 1024x768
Lens F1.8-1.9 Manual /Zoom 1:1.2
Brightness 2000 ANSI Lumens
Contrast Ratio 500:1
Built in speaker
Video Input s-video, composite video
, VGA
Input Signals RGB VGA
, SVGA, XGA, SXGA, UXGA
, Composite video PAL, NTSC
Audio input /out stereo mini jack
Acoustic Level Noise 35dB
2.2.6 Smart Board
Smart Board has but not limited to the following
Specifications:
Pen tray: optical sensor in the pen tray detect when a pen or
Erase is lifted from the tray, leds show the active tool
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Pen and eraser: Black, blue, red and green pen tray pen and a
Rectangular eraser.
Resolution: touch resolution is approximately 4000X4000
Screen surface: the hard coated polyester surface is tear proof
, optimized for projection, compatible with dry erase marker and
is easily cleaned with whiteboard cleaner
Power requirements: power is obtained from the computer
Directly through USB cable.
Power consumption: less than 1.5 Watt
Size: 160 CM X 125 CM
2.2.7 Mixer Preamplifier:
„X Flexible 2 mono & 4 stereo inputs and 1 stereo & 2 mono output.
„X Each input signal can be assigned to each of 3 outputs.
„X Stereo output can be divided among two mono output channels.
„X Depending on level reading, mono input may be selected as either
mic or line.
„X Built-in limiter circuit prevents damage from overloads.
„X Selectable internal hi-pass filter (HPF) switch.
„X Peak indicator prevents signal clipping.
Technical specification
Frequency response 20Hz: 20KHz (+1, -2 dB)
Total harmonic distortion less than 0.01 %
Noise level MIN stereo output >-105dB
Noise Level MIN Mono output > 98dB
Noise Level Max stereo output < -94dB
Noise level Max Mono output < 95dB
2.2.8 Power Amplifier:
The power amplifier shall be fully solid-state and provided with the
following facilities:-
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„X Rated output power : 2 X 60W
„X Controls: On/off, input levels, and low-cut filter,
„X Mains ¡¥on¡¦ indicator lamp,
„X Input sensitivity : <0.77 V
„X Frequency response : 50: 20000 HZ
„X Total harmonic distortion : <0.5% at range between 50:20000 HZ
„X Input protection against overload,
„X Volume, bass and treble controls,
„X Balanced floating output of 70 V and 100 V for loudspeaker
connections,
„X Flexible cord and correctly fused plug for mains supply connection,
„X AC and DC fuse protection,
„X Standard sockets complete with plugs and locking rings for each
input and terminals for loudspeaker output.
„X Rack mountable
2.2.9 Equalizer:
„X 14 filters on ISO 2 / 3 octave centre frequencies from
40Hz to 16 kHz.
„X Continuously variable independent 6dB or 12dB boost or
cut at each channel's centre frequency.
„X Active band-pass / band-reject summed in parallel filters
with minimum phase shift.
„X Noiseless centre detent slide controls with precision
calibrated linear scales.
„X Continuously variable high-pass filters with wide control
range.
„X EQ In / out switch for manually bypassing equalizer.
„X Automatic EQ bypass circuitry activates at power loss.
„X LED peak indicator monitoring of input and output
levels, for proper gain structuring.
Technical specification
1- Performance
„h Frequency Response 20Hz to 20kHz (+1.0, -
2.0dB)
„h Total Harmonic Distortion Less than 0.01% at 1kHz, all
sliders at 0 position, rated output
„h Hum and Noise -98dB (EQ in, IHF-A, all
sliders at 0 position).
2-Input & Output
„h Input Input Impedance: 30k £[ (Input level control
set at 0 position)/ Rated Input Level;
+4dB* (Input level control set at 0
position)/ Maximum Input Level; +32dB
(Input level control set at -12dB)
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„h Output Output Impedance: 1k £[/ Rated Output
Level; +4dB"/ Maximum Output Level;
+20dB*.
3-Power
„h Power Requirements AC mains 220 VAC , 50Hz
„h Power Consumption 13 watts (220-240V version)
PART 3 EXECUTION
3.1 EXAMINATION
Examine areas and conditions under which the network shall be
installed. Do not proceed with work until unsatisfactory
conditions have been corrected in an acceptable manner.
3.2 INSTALLATION OF BASIC IDENTIFICATION
Install electrical identification in accordance with requirements
of Section 16050 "Electrical Materials and Methods"
3.3 INSTALLATION OF THE SYSTEM
Installation of equipment and devices that pertain to other work
of the Contract shall be closely coordinated with the appropriate
trade.
Equipment manufacturer shall provide all necessary assistance
to this authorized local representative to:
- Coordinate the selection of system equipment.
- Supervise the installation of the audio visual equipment.
- Perform a complete functional test of the networks.
- Submit a written report attesting the proper operation of the
completed networks.
Install the network as indicated on Drawings, in accordance with
equipment manufacturer¡¦s written instructions and complying
with referenced standards of installation.
Complete wiring in accordance with manufacturer¡¦s
requirements. Color code wiring and install per manufacturer¡¦s
point-to-point wiring diagram. Determine exact number of
wires for each device installed. Connect each device with
sufficient wiring to complete its intended operation.
Where there are number of power requiring devices, provide
extra or larger size wiring to alleviate voltage drops which
makes device operate beyond voltage limits for which it was
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designed. Determine above with manufacturers representative
while equipment is being installed.
Submit a signed copy of test results in duplicate to the Engineer.
Wall mounted equipment shall be installed according to the
manufacturer recommendations.
3.4 FIELD QUALITY CONTROL
Connection and Supervision: Make connections to equipment
panel under manufacturer's supervision.
System Test and Approval: Submit shop drawings for function
and operation only, pre-approved by the Engineer.
Prior to final acceptance of the system, manufacturer of system
shall, in presence of the Contractor, Employer's representative
and Engineer's representative, test each extension device.
3.5 TRAINING
Equipment¡¦s manufacturer and his authorized, local representative
shall provide, in depth, equipment service and programming on site
training to selected Employer¡¦s personnel for one week.
3.6 WARRANTY
The system shall have a 2-year manufacturers warranty against
product defects. This warranty shall be for material only.
Installation and labor shall be warranted for a period of 1 year or
as indicated elsewhere in this specification. Manufactures that
do not provide a standard 2-year warranty, must provide an
extended warranty with their bid package.
END OF SECTION 16755