Canon fax basic 2000 サービスマニュアル

Canon

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1

BASIC OF TELEPHONE

1. INTRODUCTION TO THE TELEPHONE ................................. 1-2

Parts of the Telephone .................................................... 1-2

Making a Call .................................................................. 1-3

How do you make a call? ................................................ 1-4

Voice Frequencies Carried by the Telephone.................. 1-4

2. STRUCTURE OF A TELEPHONE ........................................... 1-5

Transmitter (Microphone) ................................................ 1-6

Receiver (Speaker) ......................................................... 1-7

Voice Circuit .................................................................... 1-7

Hook Button .................................................................... 1-8

Dial .................................................................................. 1-9

Bell (Speaker)................................................................ 1-10

3. TYPES OF TELEPHONES .................................................... 1-11

Dial Telephones............................................................. 1-11

Pushbutton Telephones................................................. 1-11

Digital Telephones ......................................................... 1-12

4. CIRCUIT DIAGRAM IN THE TELEPHONE ........................... 1-13

Dial Telephones............................................................. 1-13

Pushbutton Telephone................................................... 1-14

5. INTRODUCTION TO THE TELEPHONE NETWORK............ 1-15

Parts of a Telephone Network ....................................... 1-15

Basic Structure of a Telephone Network System .......... 1-19

Nationwide Telephone Network (In case of Japan) ....... 1-20

6. TELEPHONE EXCHANGES .................................................. 1-25

Types of Exchanges ...................................................... 1-25

The Exchange ............................................................... 1-26