TOA Electronics EX-16 User Manual

TOA EX-16 INTERCOM SYSTEM

INSTALLATION HAND BOOK

TOA ELECTRIC CO., LTD.

KOBE, JAPAN

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. Introduction of the EX-16 S y s t e m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.1 Exchange. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.1.1Features

2.1.2Specifications

2.1.3Further Details

2.1.4System Block Diagram

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

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2.2.1Features

2.2.2Specifications

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

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2.3.1Wall Mounting Panel (YC-100)

2.3.2Talk-Back Unit (TKU-11)

3. Installation of the EX-16 S y s t e m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1 Precautions for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1.1Exchange

3.1.2Stations

3.1.3Talk-Back Unit (TKU-11)

3.2	Cable Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		12
3.3	Core Diameter Versus Transmission Distance . . . . . . . . . . . . .		12
3.4	Wiring . . . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	13
3.5	Piping . . . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	14
3.6	Connection between the Station and the Exchange . . . . . . . .		15
3.7	AC/DC Power	Supply C o n n e c t i o n . . . . . . . . . . . . . . . . . . . . . . . . .	18
3.8	Connection of	the Input/Output T e r m i n a l . . . . . . . . . . . . . . . . .	19

3.8.1BGM Input

3.8.2All-Call Paging Output

3.8.3Remote Control Output

3.8.4Wiring Diagram

3.9	Connection of	the Talk-Back U n i t . . . . . . . . . . . . . . . . . . . . . . . . .	21
3.10	Connection of	the Speaker Station . . . . . . . . . . . . . . . . . . . . . . . .	22

3.10.1Wiring Procedure

3.10.2Speaker Volume Adjustment

3.10.3Connection with the Exchanger

3.10.4On/Off Control of BGM

4. Installation Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.1 Inspect Before Turning Power On. . . . . . . . . . . . . . . . . . . . . . . . . 25

4.2 Function Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.3 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.3.1Precedure

4.3.2Adjusting Method

4.3.3Relationship Between Ambient Noise and Communication Mode

5.. Trouble Shooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 5.1 Fault in E x c h a n g e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 5.2 Fault in Specific Station Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 5.3 Fault in Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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

2.1.1Features

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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2.1.2Specifications

The exchange is available with the following specifications.

EX-16 Capacity:	16 lines max. (with paging function)
Dimensions:	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)
Audio Input Level:	+7dBm max.
Audio Output Level:	+30dBm max.
Bandwidth:	200Hz~10KHz
Crosstalk:	-60dB/1.5KHz

Subscriber Impedance: 600 ohms balanced (input/output)

Power Consumption: 30W

Power Source: AC 110, 120, 220, 240V ±10%

DC 24V

2.1.3Further 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.

2

(a) Structure of Exchange and Names of Parts

Line Amp Unit (LAU-16)

Terminal for Station	Central Processing Unit (CPU-16)	EX-16 DIMENSIONS in mm
	Connector

n

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

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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.

		input data dial
		common
	control output	control	remote
			control
		circuit
		control link
			paging
		link
	speech signal in	(voice switching	speech signal out
		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.

receiving	switch	switch	transmitting
circuit	T	R	circuit
control signal			call/LinkBGM/AII
dial data in	dial		busy
out	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.

	AC in		5V
		power	18V
	GND	supply	24V
	DC in	circuit	GND

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.)

2.1.4System 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 connection 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.

2.2.2Specifications

Stations are available in the following three models.

	Model Type	Desk	Flush Mount	Desk/Wall
		Type	Type	Type
	Function	with	with	without
		Handset	Handset	Handset
	Master Station	HFM-500	HFM-510	HFM-100
	Substation	HFS-500	HFS-510	HFS-100

Optional Accessories:	YC-100 Wall mounting panel for HFM-100 and
	HFS-100.
	YC-510 Back box for HFM-510 and HFS-510.
Master Station:	Capable of calling any master/substation in
	the system, and also of using all available
	functions.
Sub Station:	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

2.3.1Wall 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.

2.3.2Talk-Back Unit (TKU-11)

This unit, optional amplifier (10W max.) and speaker (Hi-Z) will allow highvolume 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

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:	100~120/200~240V AC
Input:	Talk-Back Max. 30 dBm,
	Amplifier Max. 10W, Hi-Z
Output:	Talk-Back Max. 10dBm,
	Amplifier 0dBm,
Control:	Voice Switching
Speech Control:	Voice Switch or Press-To-Talk
S/N	55dB
Dimensions:	204 X 202 X 98mm
Weight:	2 k g

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