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Summary of Contents for Toa EX-16
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Page 1: Intercom System
TOA EX-16 INTERCOM SYSTEM INSTALLATION HAND BOOK TOA ELECTRIC CO., LTD. KOBE, JAPAN... -
Page 2: Table Of Contents
2. Introduction of the EX-16 S y s t e m ...... -
Page 3: Introduction
1. Introduction This is the installation manual for the exchange, stations and other components of TOA Intercom System EX-16. It includes an outline of the system, an explanation of installation, cable connection, inspection procedures and a troubleshooting guide. Careful study of this manual is recommended prior to installation of the system. -
Page 4: Specifications
2.1.2 Specifications The exchange is available with the following specifications. EX-16 Capacity: Dimensions: Weight: Exchange capacity can be increased within the given limits in units of 4 lines. Exchange Specifications Ambient Temperature Range: Audio Input Level: Audio Output Level: Bandwidth:... - Page 6 CPU (Central Processing Unit) The Central Processing Unit is divided into two sections: common control and speech path. Common control: This section consists of a microcomputer and associated other circuits. It controls receiving dial data from stations, opening and closing of speech path, controlling of signal, paging and BGM switches in accordance with the exchange program.
- Page 7 (c) LAU (Line Amplifier Unit) The Line Amplifier Unit consists of a power supply circuit for stations, transmitting and receiving circuits for voice signal, speech path switches, BGM switches and the dial data receiving circuits. One unit accepts up to 4 stations. A maximum of 4 LAU's can be installed. receiving switch circuit...
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Page 8: System Block Diagram
(Wiring of the terminal and the station will be explained in a separate section.) 2.1.4 System Block Diagram A block diagram of the EX-16 system is shown below. In a standard system, at least one LAU-16 is installed. The remaining units are optional. Each LAU-16 contains the necessary circuitry for four stations. -
Page 9: Stations
2.2 Stations 2.2.1 Features The stations used in the Toa Intercom EX-16 have the following features: 1. Each station is provided with a male 4-pin plug (YC-102) for easy con- nection to cables. 2. Wiring from the exchange to each station is an independent 4-wire system. -
Page 10: Accessories
Station Specifications Permissible Loop Resistance: Input/Output Impedance: Loudspeaker Output: Handset Speaker Output: 2.3. Accessories 2.3.1 Wall Mounting Panel (YC-100) The wall mounting panel is used for HFM-100 and HFS-100 when these stations are to be surface wall-mounted. 2.3.2 Talk-Back Unit (TKU-11) This unit, optional amplifier (10W max.) and speaker (Hi-Z) will allow high- volume paging with response from speaker. -
Page 11: Specifications
SPECIFICATIONS 1. Power Switch 2. Power Indicator Power Source: 3. Output Volume Control Input: 4. Input Volume Control 5. Rubber Foot 6. AC Inlet Output: 7. Voltage Selector 8. 8-Pin Terminal Board Control: 9. Output Jack 10. Terminal Board Cover Speech Control: Dimensions: Weight:... -
Page 12: Installation Of The Ex-16 System
3. Installation of the EX-16 System 3.1 Precautions for Installation 3.1.1 Exchange Pay particular attention to the following points: * The layout should allow easy servicing and inspection. * The exchange is compact and lightweight; however, it is important to ascertain the strength of the wall on which it will be placed. -
Page 13: Stations
3.1.2 Stations Particular attention should be given to the following points during installation. * A desk-type, wall-mounting-type or desk/wall-type should be chosen according to the user's need. * If the all-call paging or talk-back function is adopted, precautions should be taken to ensure against feedback due to interference between the station (microphone) and the paging or talk-back speaker;... -
Page 14: Cable Installation
* There is a limit to the diameter of cables that can be used to connect stations to the terminals of EX-16. This limit must be taken into con- sideration when planning the wiring of this system. The diameter should measure between 0.016"... -
Page 15: Wiring
3.4 Wiring General Information * Wiring should be done independent of public telephone lines. * The wiring conduit is often installed underground or embedded in building structures such as walls and floors, so care should be taken to draw up a wiring plan that has ample reserve for future extension of the system and that can be adapted to future remodelling or expansion of the building it is housed in. -
Page 16: Piping
3.5 Piping * Where wiring is to be passed through a wall or the like, it should be protected by a hard PVC or metal tube. * If the number of connecting wires between an indoor terminal board and a station is small and the station's site is fixed so that it will not be moved frequently, install a box at that site and pull wiring through a metal or hard PVC tube as required by job or ordinance. -
Page 17: Connection Between The Station And The Exchange
3.6 Connection between the station and the exchange Station 4-Pin Plug (YC-102) Plug in (Cover) 4-Pin Jack (YC-101) (YC-103: 4-Pin Jack for flush-mount) NOTE: Use 4" X 2" Switch Box for YC-103. Receiving Lines (not Polarity Specified) Transmitting Lines (not Polarity Specified) (Viewed from the station side) - Page 18 Note: Connect the individual cables in order, starting with the top ter- minal. When using the clipping tool, be sure that the cutting edge is on the side of the wire to be cut off. Clipping Tool C (YC-105) Push down Cutting edge Clip Terminal (Side View) Clip Terminal...
- Page 19 TERMINAL BOARD EX-16 WIRING INSTRUCTIONS 1 STATION CONNECTIONS 2 TALK-BACK CONNECTIONS TKU-11 TERMINAL SPEAKER LINE INPUT...
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Page 20: Ac/Dc Power Supply Connection
The power cable, YA-308 or YA-309, can be connected to the 5P terminal. Be sure to ground the exchange. 5P Terminal on DSM-16 3.8 Connection of the Input/Output Terminal A 6P terminal for the input/output signals of the EX-16 is provided on the DSM-16. Power Supply Cables YA-308... -
Page 21: Bgm Input
3.8.1 BGM Input Input impedance: 50 K (unbalanced) Input level: -10dB max. Output level: 100mW Remove the short bar connected to the terminal. (When BGM is not employed, the short bar should be kept on the terminal. If the short bar is not replaced, a humming sound will be heard from the station.) The short bar is referred to on page 3. - Page 22 3.8.4 Wiring Diagram DOOR...
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Page 23: Connection Of The Talk-Back Unit
3.9 Connection of the Talk-Back Unit Connection of the talk-back unit is shown below. SPEAKER EX-16 TERMINAL BOARD When the talk-back speaker is used as a microphone, sound clearness and microphone sensitivity vary according to the ambient noise level and in- stallation position. -
Page 24: Connection Of The Speaker Station
3.10 Connection of the Speaker Station In the EX-16, instead of using a station, a speaker for one-way conversation can be installed using a jumper in the LAU-16. This is possible at each station position on the LAU-16. 3.10.1 Wiring Procedure First, determine the number of station speakers to be installed. -
Page 25: Connection With The Exchanger
3.10.3 Connection with the Exchange Connect speakers to terminals 1 and 2 as shown in the diagram. (Leave terminals 3 and 4 open.) 3.10.4 On/Off Control of BGM BGM can be turned off when the jumpers are connected as shown in the diagram. - Page 26 Jumper for Speaker Station Selection Jumper for BGM On/Off For BGM on/off operation remotely, the control line can be extended the same way as for station wiring. How to Connect the Jumper Wire 1. Use a 0.6mm diameter plated wire as jumper. 2.
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Page 27: Installation Adjustment
4. Installation Adjustment 4.1 Inspect Before Turning Power On. * Before supply power, check the power connections (power connections should be complete) and the fuse. Also, voltage selector should be set correctly. All modules should be in place. Check the ROM on the CPU-16. It should be set securely in the socket. Make sure that exchange and stations are properly connected. -
Page 28: Testing
Program Switch Details Door Remote 1. Set the mini-jump in the JP1 position for door remote. Relay goes on for 4 seconds when buttons 2. Set the mini-jump in the JP2 position for power remote. Press buttons Press button Note: The unit is set in the JP1 position (door remote) at the factory. -
Page 29: Precedure
4.3.1 Precedure Turn on power switch on the exchange. Adjust the sound level of the external PA paging and check the power remote function. (a) Connect one station. (b) Press buttons to test the sound level. Adjust the volume control of the external amplifier. Complete a speech test with each of the other stations. - Page 30 (3) If the voltage measured is normal at every point, connect one unit at a time checking the voltage after each connection. (4) If the voltage is upset after connecting any given unit, the unit is to be replaced. (b) If there is no response to dialing: (1) Disconnect the plug for the particular station from the line and check the wiring between the exchange and the station.
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Page 31: Trouble Shooting Guide
4.3.3 Relationship Between Ambient Noise and Conversation Mode The EX-16 system is provided with voice switches for the press-to-talk function which is required when the ambient noise level is high. Below is a guide for using the press-to-talk function. (Up to 60 phons) (Up to 60 phons) 5. -
Page 32: Fault In Exchange
5.1 Fault in Exchange * When the power supply unit or the CPU-16 is out of order, the same kind of fault will occur at all stations. * When the LAU-16 is out of order, a fault will appear only at a particular station. -
Page 33: Fault In Specific Station Only
5.2 Fault in Specific Station Only Find the cause according to the following table if the fault lies with a specific station only, not with all stations. SYMPTOM CHECK-ITEM Dialing can not be Replace the made at privacy off station and make mode. -
Page 34: Fault In Cable
5.3 Fault in Cable One of transmitting lines (T-Line) is disconnected Station (B) T-Line Symptom: One of receiving lines (R-Line) is disconnected. T-Line Symptom: R-Line EXCHANGE 1-1 A can dial. 1-2 A can hear B. 1-3 B can not hear A. 1-4 Noise is heard at B. - Page 35 T-Line and R-Line are shorted or mixed up. T-Line R-Line EXCHANGE Symptom: 3-1 A can not dial. 3-2 Conversation is impossible between 3-3 When B dials A, noise will be heard at T-Line and R-Line are connected conversely. T-Line R-Line EXCHANGE 4-1 A can not dial.
- Page 36 TOA ELECTRIC CO., LTD. KOBE, JAPAN Printed in Japan...
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