TOA Electronics EX-16 User Manual

TOA EX-16

INTERCOM SYSTEM

INSTALLATION HAND BOOK

TOA ELECTRIC CO., LTD.

KOBE, JAPAN

Introduction

......................................................

2. Introduction of the EX-16 S ystem...............................

2.1 Exchange................................................

2.1.1 Features

2.1.2 Specifications

2.1.3 Further Details

2.1.4 System Block Diagram

2.2 Stations...................................................

2.2.1 Features

2.2.2 Specifications

2.3 Accessories ............................................

2.3.1 Wall Mounting Panel (YC-100)

2.3.2 Talk-Back Unit (TKU-11)

3. Installation of the EX-16 System................................

3.1 Precautions for Installation ...............................

3.1.1 Exchange

3.1.2 Stations

3.1.3 Talk-Back Unit (TKU-11)

3.2 Cable Installation ........................................

Core Diameter Versus Transmission Distance .............

3.3

Wiring ....................................................

3.4

Piping ....................................................

3.5

3.6 Connection between the Station and the Exchange ........

3.7 AC/DC Power Supply Connection.........................

3.8 Connection of the Input/Output Terminal.................

3.8.1 BGM Input

3.8.2 All-Call Paging Output

3.8.3 Remote Control Output

3.8.4 Wiring Diagram

3.9 Connection of the Talk-Back Unit.........................

3.10 Connection of the Speaker Station ........................

3.10.1 Wiring Procedure

3.10.2 Speaker Volume Adjustment

3.10.3 Connection with the Exchanger

3.10.4 On/Off Control of BGM

4. Installation Adjustment ........................................

4.1 Inspect Before Turning Power On.........................

4.2 Function Selection .........................................

4.3 Testing ....................................................

4.3.1 Precedure

4.3.2 Adjusting Method

4.3.3 Relationship Between Ambient Noise and Communication Mode

5.. Trouble Shooting Guide ........................................

5.1 Fault in Exchange..........................................

5.2 Fault in Specific Station Only ...............................

5.3 Fault in Cable ..............................................

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10 10

12 12 13 14 15

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25 25 25

30 31 32

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.

2.1.2 Specifications

The exchange is available with the following specifications.

EX-16 Capacity:

Dimensions:

Weight:

16 lines max. (with paging function)

360(W) X 300(H) X 100(D)mm

(14.2" X 11.8" X 3.9")

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:

Audio Input Level:

Audio Output Level:

Bandwidth:

Crosstalk:

Subscriber Impedance:

Power Consumption:

Power Source:

2.1.3 Further Details

32°~104° F (0°~40°C)

+7dBm max.

+30dBm max.

200Hz~10KHz

-60dB/1.5KHz

600 ohms balanced (input/output)

30W

AC 110, 120, 220, 240V ±10%

DC 24V

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.

in mm

EX-16 DIMENSIONS

(a) Structure of Exchange and Names of Parts

Connector

Central Processing Unit (CPU-16)

Line Amp Unit (LAU-16)

Terminal for Station

Short Bar

Power Transformer

Terminal

AC Fuse Holder

DC Fuse Holder

Power Indicator

Voltage Selector

Power Switch

AC/DC Input Terminal

— Power Supply Module (DSM-16)

Mother Board

(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.

dial

data

input

control output

speech signal in

common

control

circuit

link

control

link

(voice switching

circuit)

signal

generator

link busy

remote control

paging

speech signal out

BGM

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

circuit

control signal

dial data in

out

dial

receiver

switch

transmitting

circuit

BGM/AII

call/Link

busy

(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.

AC in

GND

DC in

remote

BGM in

paging out

power

supply

circuit

18V

24V

GND

(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)

Inside View

Units

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.

Model

Function

Master Station

Type

Substation

Optional Accessories:

Master Station:

Sub Station:

Desk

Type

with

Handset

HFM-500

HFS-500

YC-100 Wall mounting panel for HFM-100 and

HFS-100.

YC-510 Back box for HFM-510 and HFS-510.

Flush Mount

Type

with

Handset

HFM-510

HFS-510

Desk/Wall

Type

without

Handset

HFM-100

HFS-100

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.

Station Specifications

Permissible Loop

Resistance:

Input/Output Impedance:

Loudspeaker Output:

Handset Speaker Output:

300 ohms

600 ohms (balanced)

300mW maximum

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.

TALK-BACK UNIT

MAX 10W

SPEAKER Hi-Z

Fig. 5

1. Power Switch

2. Power Indicator

3. Output Volume Control

4. Input Volume Control

5. Rubber Foot

6. AC Inlet

7. Voltage Selector

8. 8-Pin Terminal Board

9. Output Jack

10. Terminal Board Cover

SPECIFICATIONS

Power Source:

Input:

Output:

Control:

Speech Control:

S/N

Dimensions:

Weight:

100~120/200~240V AC

Talk-Back Max. 30 dBm,

Amplifier Max. 10W, Hi-Z

Talk-Back Max. 10dBm,

Amplifier 0dBm,

Voice Switching

Voice Switch or Press-To-Talk

55dB

204 X 202 X 98mm

2kg

+ 25 hidden pages