TOA Electronics Intercom System EX 16 User Manual

TOA EX-16  
INTERCOM SYSTEM  
INSTALLATION HAND BOOK  
TOA ELECTRIC CO., LTD.  
KOBE, JAPAN  
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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.  
This manual is only intended to give the information necessary for  
proper installation of the system.  
Prior to installation of the system, unpack the components of the  
system to make sure that they are in order.  
2. Introduction of the EX-16 System  
Because the EX-16 System is a fully electronic intercom system, it has  
the following features that surpass conventional mechanical systems.  
1. All components of the exchange are designed according to the  
modular concept. Each module and the integral terminals for  
connecting stations are connected to the mother board, thus  
eliminating wiring between the two, resulting in a sizable reduction in  
the number of procedures required to install the system.  
2. The exchange is a wall-mounted type for space conservation.  
3. Wiring for each station is an independent 4-wire system which uses  
a minimum number of connecting wires resulting in greater ease  
in installation.  
2.1 Exchange  
2.1.1 Features  
The features of the TOA EX-16 Intercom System are as follows:  
1. All components of the exchange are designed as plug-in modules.  
This results in a great increase in ease of maintenance, expansion,  
and in speed of the system installation.  
2. Extensive incorporation of IC's in the electronic circuits of the  
exchange results in a highly compact, space-saving design and in  
quieter operation than conventional intercom systems.  
The system consists of only two types of basic electronic units.  
This, in turn, means greater freedom in selection of an installation  
site.  
3. Since the system is completely electronic, power consumption is  
kept to a minimum.  
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2.1.2 Specifications  
The exchange is available with the following specifications.  
EX-16 Capacity:  
Dimensions:  
16 lines max. (with paging function)  
360(W) X 300(H) X 100(D)mm  
(14.2" X 11.8" X 3.9")  
Weight:  
8.3 kg (18.3 lbs.) with 16 lines  
Exchange capacity can be increased within the given limits in units  
of 4 lines.  
Exchange Specifications  
Ambient Temperature  
Range:  
32°~104°F (0°~40°C)  
+7dBmmax.  
Audio Input Level:  
Audio Output Level:  
Bandwidth:  
+30dBm max.  
200Hz~10KHz  
-60dB/1.5KHz  
Crosstalk:  
Subscriber Impedance: 600 ohms balanced (input/output)  
Power Consumption:  
Power Source:  
30W  
AC 110, 120, 220, 240V 10%  
DC 24V  
2.1.3 Further Details  
The exchange is composed of the following sections:  
* CPU (Central Processing Unit)  
* LAU (Line Amplifier Unit)  
* DSM (Power Supply Module)  
* Integral terminal board for connecting stations  
The power supply module can be removed from the exchange case.  
The exchange operates on AC/DC power.  
The exchange is a compact, wall-mounted type. The connectors and  
terminal for stations are on the mother board and completely assembled at  
the factory.  
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(b) 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.  
Speech path: This section consists of a voice switching circuit, signal  
generator, link busy signal circuit, BGM amp and the paging amp. It is  
controlled by the common control section.  
common  
remote  
control  
control  
circuit  
control output  
paging  
link  
speech signal in  
speech signal out  
(voice switching  
circuit)  
signal  
generator  
BGM  
link busy  
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(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.  
switch  
T
receiving  
circuit  
transmitting  
circuit  
switch  
R
control signal  
dial data in  
out  
dial  
receiver  
(d) DSM (Power Supply Module)  
The Power Supply Module consists of a power supply unit for the exchange  
and terminals for external input and output connections. This module is  
attached to the mother board with a connector and can be easily detached  
from the exchange.  
5V  
AC in  
power  
supply  
circuit  
18V  
GND  
24V  
GND  
DC in  
remote  
BGM in  
paging out  
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(e) Integral Terminal for Connecting Stations  
The connection terminal for the exchange and stations is built into the  
exchange and connected to each LAU with a mother board.  
(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.  
Station  
Terminal  
LAU-16  
(1)  
LAU-16  
(2)  
CPU-16  
LAU-16  
(3)  
DSM-16  
LAU-16  
(4)  
Units  
Inside View  
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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. The fact that only 4 wires are necessary makes installation  
easier, and with a 4-pin jack (YC-101 or YC-103) at the end of each  
cable, connection can be made quickly with only a screwdriver.  
There are three types of stations available: the desk-top type, the  
flush-mounting type and the desk/wall type. Each type is available in 2  
models (master and substation) and can be chosen in accordance with  
requirements.  
2.2.2 Specifications  
Stations are available in the following three models.  
Desk/Wall  
Type  
without  
Handset  
Desk  
Type  
with  
Flush Mount  
Type  
with  
Handset  
Model  
Function  
Type  
Handset  
Master Station  
Substation  
HFM-500  
HFS-500  
HFM-510  
HFS-510  
HFM-100  
HFS-100  
Optional Accessories:  
Master Station:  
Sub Station:  
YC-100 Wall mounting panel for HFM-100 and  
HFS-100.  
YC-510 Back box for HFM-510 and HFS-510.  
Capable of calling any master/substation in  
the system, and also of using all available  
functions.  
Capable of calling only its Master Station, and  
also of using the privacy, single digit dialing  
press-to-talk and BGM selection functions.  
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Station Specifications  
Permissible Loop  
Resistance:  
300 ohms  
Input/Output Impedance: 600 ohms (balanced)  
Loudspeaker Output: 300mW maximum  
Handset Speaker Output: 100mW maximum  
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. Conversations are conducted  
by using the press-to-talk bar for press-to-talk and release-listen. The  
talk-back speaker also operates when all-call paging is made from a master  
station.  
MAX 10W  
SPEAKER Hi-Z  
TALK-BACK UNIT  
Fig. 5  
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1. Power Switch  
SPECIFICATIONS  
Power Source:  
Input:  
2. Power Indicator  
3. Output Volume Control  
4. Input Volume Control  
5. Rubber Foot  
100~120/200~240V AC  
Talk-Back Max. 30 dBm,  
Amplifier Max. 10W, Hi-Z  
Talk-Back Max. 10dBm,  
Amplifier 0dBm,  
6. AC Inlet  
Output:  
7. Voltage Selector  
8. 8-Pin Terminal Board  
9. Output Jack  
Voice Switching  
Control:  
10. Terminal Board Cover  
Voice Switch or Press-To-Talk  
55dB  
Speech Control:  
S/N  
204 X 202 X 98mm  
2kg  
Dimensions:  
Weight:  
9
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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.  
* The exchange should be grounded. When it is used in combination with  
other systems (for example, with a PA system) the exchange should  
be connected to the other components for common grounding.  
* Choose a low "source noise" AC power supply for the exchange. Line  
noise can affect speech quality.  
*
Make sure that the AC power circuit provides adequate insulation and  
capacity.  
This high-performance exchange is compact as well as quiet, and can be  
easily installed almost anywhere. Areas described below, however, should  
be strictly avoided.  
* An area where it will obstruct traffic, for example, in a hallway or near  
the entrance or exit of a room.  
* An area where it will be exposed to fire, heat or direct sunlight. Suitable  
ambient temperature is +32°~104°F (0°~40°C).  
* A dusty area where it will be exposed to metal dust or dirt.  
* Near a storage place for chemicals, oil, etc.  
* An area subject to vibration.  
* Near high-voltage equipment.  
* In a strong electrical field.  
*
Near equipment vulnerable to the influence of an electrical field.  
10  
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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; that is, they  
should be installed facing different directions or separated as far as  
possible from each other.  
* The "para-branching" operation or the connection of more than one  
station to one circuit is not possible.  
* Adjust the volume switch and volume control on the station for com-  
fortable speaker output level or for avoiding troublesome acoustical  
conditions (e.g., reverberation or echo).  
Stations are compact for easy installation almost anywhere. However, areas  
described below should be strictly avoided.  
* An area where it will be exposed to fire, heat or direct sunlight.  
* A dusty area where it will be exposed to metal dust or dirt.  
* Near a storage place for chemicals, oil, etc.  
* An area subject to vibration.  
* Near high-voltage equipment.  
* In a strong electric field.  
* On the same circuit as a SCR type light dimmer.  
3.1.3 TKU-11