PA System Specifications

THE EGYPTIAN EMBASSY ____________________________________ ___________________________________ ____________________ LUSAKA – ZAMBIA SECTION 13 PUBLIC ADDRESS SYSTEM

1.

General Features :

It is required to supply, install, commission and test an integerated public address system and voice alarm & tones to provide all announcements, back ground music to passengers and staff as well well as voice alarm element which is connected to a fire detection system for automatic evacuation and alert in fire in arrival & departure halls and public areas.The system must be capable to be connected via the telephone (PABX) facility. The work described in these specifications consists of all labor, materials, equipment and services necessary and required to complete and test the system. Any material not specifically mentioned in this specification or not shown on drawings but required for proper performance and operations shall be furnished and installed. The contractor shall submit manufacturers technical product data and catalogues catalogues including specifications and instal lation instructions inst ructions for each type of of Public Address system system equipment equipment The contractor shall submit samples of system component for consultant approval. 2.

General Specifications Specifications :

* All components of the system shall be of heighest quality and shall be supplied from manufacturers engaged in the production and installation of these systems. The system shall distribute background music all over the areas of the project. Background music shall be interrupted to make announcements in one individual zone or in all zones together through paging microphones located in selected areas. * It's preferable to divide the project into several paging zones according to the attached block diagram included with the project document. * Each area shall have its own volume control including announcement override relay. * Loudspeakers Loudspeakers shall receive announcements regardless of local volume control settings. * Public address system shall be linked to the telephone system so that an announcement in the public address system can be made through some specified specified telephone sets. * The system should be easily extended and reconfigured to meet the changing requirements and expansion of our requirements, to allow for at least 20% spare capacity. * Pre- recorded messages for for fire or other emergency and standard message can be digitally stored and transmitted automatically to the loudspeakers in an emergency case. * Priority capability up to 28 priority levels using the matrix controller system. * 26 input sources expandable to 32 . * 16 zone output expandable to 32. 32. * Fault monitoring system, to identify malfunction before a failure occurs to indicate earth faults, line faults, mains failure, etc. * Noise sensing system system to compensate fluctuations in background and get an automatic adjustment of the sound pressure level. Target sound pressue levels need to be at least 6db above back back ground. * The equipment main voltage is 220 VAC - 50 Hz battery 24 DC & charger. * All sub-systems must be 19” rack, mounting frame and in modular type. * Number of zones zones may be increased, on other hand when more zones will be required, it could be achieved with micro -processor without the need of wiring changes. * A complete set of the original technical catalogues for the proposed system, system, should be submitted 3.

S ystem Contents : System

* Main racks . * Power amplifiers. * Graphic equalizer 2/3 Octave. * Ambient noise sensor system. * Matrix Controller System. * Ceiling loud speakers. * Microphones & microphone pre - amplifier (1,8,16 zones) * Column Column loud speakers. speakers. * Horn loud speakers. * AM/FM tuner of digital type, complete with antenna & Cables. * Cassette recorder/player (dual configuration). July 2009

Spec. Electrical - 1

Magdi Lotfi Consultant, Arch,Int, Designer

THE EGYPTIAN EMBASSY ____________________________________ ___________________________________ ____________________ LUSAKA – ZAMBIA * 5 Disc C.D player. * 24 VDC power supply charger & batteries of free maintenance type. * Telephone interface ..... etc. 4.

Technical Specifications: 4.1

Main Racks:

Equipment rack housings must be made of durable steel rack of rigid construction to suit any 19” rack mounting having wear resistance, gray finish , rack doors, ventilators and power supply unit and necessary kits. 4.2

Power Amplifier

*Must have power enough to feed the ceiling loudspeakers and horns. *Power amplifiers amplifiers should should be protected for overheat as well as short circuit & open circuit conditions. *Frequency band width 40 Hz - 16 KHZ ± 2 dB at the 1/3 rated power. *Distortion less than 1% at rated power output. *Output 100 V line. *Noise better than -8 dB. *Built in monitoring circuity. *Power requirements 220 V/AC , 50 Hz or 24V DC. 4.3

Dual Channel Graphic Equalizer :

* Featuring 14 bands per channel 2/3 octave, having automatic power muting . * Frequency response + 0 dB -1.5 dB, 20 HZ to 20 20 KHZ. * Dynamic range 107 dB. * Noise less than 0.005%. * Max. Voltage Gain + 12 dB. 4.4

The Ambient Sensor

The ambient noise sensor system shall be a designed to electronically adjust the level of a page announcement in an area of a building where ambient noise level are continuously changing. The system shall consist of the control module power supply and up to four (4) microphone modules wired in parallel. The system shall ensure that page announcements are audible even during periods of high noise levels. The frequency response shall be shaped when the signal is boosted so that speech articulation becomes more intelligible in the high noise area and so that there is no distortion in music reproduction. The system shall continuously monitor the ambient noise level through the microphone module located in the subject area. The wire run between control unit and microphone module, when composed of 2conductor AWG 20 , shall be able to reach a length of 2,000 feet with no appreciable loss of signal strength. All wiring connections to the control module shall be made via terminal strips or jacks. The microphone module shall include an adjustable mounting bracket for precise positioning. The system shall be powered by a 24 volt power supply. 4.5

Matrix Controller System Equipment :

* Description :

The matrix system is an audio signal routing system designed to perform centralized control of intermediate and large -origination broadcast systems. The systems matrix distributes audio signals from remote microphones, automatic announcement, and background music sources (BGM) to individual outputs according to its software preset conditions and priorities. The matrix should be of modular constructions the pc boards can be combined to provide the best matrix configuration July 2009



THE EGYPTIAN EMBASSY ____________________________________ ___________________________________ ____________________ LUSAKA – ZAMBIA

* General Features :

- Audio input : Max. 16 inputs including the No. of remote microphone inputs. - Audio bus : 16 digital buses (fixed) (fixed) - Audio output : Max. 16 output. - Speaker selector Control output ( Speaker selector can be controlled to divide output zones smaller) - Multi - purpose control input : Max. 128 parallel inputs. - Multi - purpose control output : Max. 128 parallel outputs. The matrix system in general feature is consisting of : - Matrix main frames . - Audio input boards (for different sources). - Audio output boards. - Central processing unit (CPU). - Control boards (input & output). - Remote microphone ........ - Remote input panel. - Remote output panel. * Specifications:

Power Source : 100-120 VA or 220-240 VAC 50/60 HZ. Power Consumption max. 100 W. Operating Temp. 0-50°. Audio input : Input level odB input impedence 10 K K 64 inputs max. Audio output Output level odB output impedence 600 K 64 inputs max. Audio L/D characteristics (line level) Freq. Charct. 20-20000 Hz sampling freq. 48 KHZ dynamic range > 85 dB A/D converter 18 bits D/A converter 20 bits Buses 16 digital bus Remote mic. Interface more than 15 contactable mics. 4.6

Control Panel

* Contains master volume control, treble and base controls, level indicator. * Enables up to eight microphone positions selectivity to speak to as many as 16 zones. 4.7

AM/FM Tuner:

* Digital type complete with antenna & cables, auto scan tuning, 30 station AM/FM random preset. - FM operating range 88-104 MHZ - AM operating range 520 to 1600 KHZ - Provide an on/off switch and a volume control. - Pre-set channels. - LED channel indicator. - It shall be connected To AM/FM antenna mounted on the roof of the building. Sensitivity : FM < 1 µv AM < 20 µv Signal to noise ratio : FM 75 dB. 4.8

Dual Cassette Recorder /Player :

* Accept normal, chrome and metal tapes. * Auto reverse double cassette deck, 2 channel stereo. * Dual tape counter with memory stop * Music search system. * Frequency response 20 HZ -20 KHZ. July 2009



THE EGYPTIAN EMBASSY ____________________________________ ___________________________________ ____________________ LUSAKA – ZAMBIA * Signal to noise ration 103 dB. * Precision tape counter. * Total Harmonic distortion < 0.008%. * Built in AGC. 4.9

5 Disc Disc CD CD Player :

* 20 bit - 8 times oversampling digital filter. * Program playback of up to 20 selections. * Frequency response 3 HZ - 20 KHZ. * Signal to noise Ratio 110 dB. dB. * Channel separation 105 dB. * Playback begins less than 0.01 seconds after the play button is pressed * The play speed can be adjusted by + 8%. 4.10

-

Monitor Panel

Should have aural /visual monitoring for multi channel sound and program systems. Large easy to read watt meter for precise visual adjustment of O/P level. Rack ,ountable . Accurate monitoring for system having up to 10 separate program channels or 10 amplifiers.

4.11 Ceiling Loud Speakers :

* Max. power 9 watts. * Suitable for any depth of ceiling mounting, circular steel bafflers, preferable (fast-fit) sprung loaded fixing tabs for quick fixing. * Tapping (1,5 -3 - 4-6-9 watts) from 100 V line. * Frequency range 70 HZ- 18 KHZ. * Sound pressure level SPL 90 dB/W/M * Rated impedance : at 3W power, 3.3 K 4.12

Horn Loud Loud Speaker Speaker :

* Aluminium alloy. * Max. Sound pressure level about 120 dB/W/M. * Max. Power (RMS) 20 watts. * Freq. Response 300 Hz - 14 KHZ. * Power taps (6,10,20 watt) * Outdoor use speech /BGM. 4.13 Column Column Loud Loud Speaker Speaker :

* * * * * * * * *

Power (RMS) 10-20 watt. For high power handling as well as minimum distortion and wide frequency range. High sensitivity and low loss matching transformer to minimize amplifiers loading and save energy. Shielded magnates allow columns to be located adjacent to monitor screens without effecting the display. (For the DOME) Power (RMS) (10-20 W) Sensitivity (90-96 dB) . Max. Sound pressure level (100 - 106 dB) There must be tapping in transformer. Must have the facility of internal vibration damping.

4.14 Microphone: 4.14.1 Local Paging Micrphone .

* Single action input (single zone) * Low handling noise. * Desk top mounting microphone in program mode unit with gooseneck (dynamic type) * Press to talk button. July 2009



THE EGYPTIAN EMBASSY ____________________________________ ___________________________________ ____________________ LUSAKA – ZAMBIA * Frequency response 100-10000 Hz * Can be remotely operated using additional components . * Can be equipped with pre- amplifier and chime. * Microphone pre- amplifier must be provided. * Type : dynamic microphone . Flexible gooseneck. * Sensitivity - 75 dB. * Freq. response ▒ 3 dB (140 HZ - 7 KHZ) * Pre Amplifier :

- Shall be used with the local paging mics. - Desk top or wall mounting. - Activates selectable 4 tone, 2 tone and single tone chime. - Power requirements 12-24 VDC. Output 0 dB 60 Ω balanced. balanced. 4.14.2 Remote paging Microphone:

Up to 20 groups of output zone cominations (including sub-channels split by SS) can be registered into a remote miscrophone, each of which can be selected by simply pressing the corresponding group selector key. Each group selector key is provided with an indicator lamp to indicate that the zones assigned to that group are accupied by other equipment. Besides the group broadcast, individual -zone broadcast can also be made from the remote microphone by selecting individual output zones. An internal PCM sound source generates four different chime tones, allowing a pre-selected chime signal to be automatically sounded before and after an announcement (automatic chime play). The microphone user can make his or her announcement just after chime play completion because the chime tone can be monitored through the internal speaker. All key operations are supported by the LCD screen to minimize key operation errors. - Power source 24 VDC - Unidirectional electric condenser type. - Provided with chime volume control. - Several kind of built in chime with PCM sound source monitored by built-in speakers. - Connection distance is 1000 m. - 0-50° operating temperature. 5. Network :

System network and all wiring and cabling installation will be according to architect drawings system designed and project management in turn it should be itemized in both quantities and prices for each type of cables, cable trays and PVC pipes. 6.

Pre- Qualification :

All offers should be submitted with the pre- qualification specially in international airports at the public address voice & tones system alarm. 7.

Manufacturing :

All system equipment must be manufactured in USA, Western Europe or Japan 8.

Manuals Documentation :

(3) sets of service manuals containing operation, maintenance and circuit diagram for each item. (3) sets of (AS - built drawings) (3) sets of programming procedure. 9. Spare Parts :

Complete system design should be attached in spare parts complete itemized and price list of spares July 2009



THE EGYPTIAN EMBASSY ____________________________________ ___________________________________ ____________________ LUSAKA – ZAMBIA sufficient for 5 years operation should be quoted including the following : * Modules / cards forming the whole sub -systems. * 10 % of power amplifiers and mixer / amplifier. * 20 loud speakers ceiling, two horns, & 4 columns L.S. * Remote mic. * Local pagin mic. * (1) microphone one zone 1 wireless mic. * Two complete sets of consumable spare parts (Knobs, LED’s, Fuses, etc....) * One complete set of active components.

10.

Warranty :

2 years. N.B * Tenderer is responsible to manage the system design calculating the total output power required, mixer and pre- amplifiers and the loud speakers distribution and quantities as well as zones location. * The means of connecting the DOME Loud Speakers may be cables or infra red. Battery & Charger : * 24 V DC power supply charger in dual conf. * NICAD free maintenance batteries. Site Training : For 4 technicians during the installation and commissioning period. Site Survey : May be required. * To determine appropriate selection of loud speakers types and positioning as well as tappings. * Sound pressure level calculation. * To measure back ground noise to determine the best performance.

July 2009



PA System Specifications

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