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Telephone Cabling Basics

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TELEPHONE CABLING TECHNOLOGY INFINITY CABLING
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  • TELEPHONE CABLING TECHNOLOGY

    INFINITY CABLING

  • Voice Grade Telephone Cable

    Main Types Outdoor

    Heavy Duty Type , Weatherproof, Sun Protected, Mechanical protection from damage. Some types can be buried in the ground. Cable jacket normally black.

    Main Types Indoor

    Light Duty Type, Used Indoor only, not weatherproof, can be run in conduits, cable trays etc., can be fixed surface. Cable jacket White or Beige.

    CABLE CONSTRUCTION

    Basic Cable is One Set of 2 Wires Called A Twisted Pair

    2 wire pair

    PVC jacket INFINITY CABLING

  • CABLE CONSTRUCTION

    Telephone Cable is Manufactured in standard sizes ie

    1 pair, 2 pair, 3 pair, 4 pair ,6 pair, 10 pair, 15 pair, 20 pair ,30 pair, 50 pair, 100 pair

    A Standard colour code is used to identify each pair. The colour code is repeated through each size of cable. ie

    BLUE ORANGE GREEN BROWN SLATE (grey)

    Matched with a Trace Colour ie WHITE

    BLUE / WHITE ORANGE / WHITE GREEN / WHITE BROWN / WHITE SLATE / WHITE First 5 pairs

    BLUE / RED ORANGE / RED GREEN / RED BROWN / RED SLATE / RED Second 5 pairs

    RED

    This is a 10 Pair C

    able

    INFINITY CABLING

  • Standard telephone installations normally require ONE PAIR for each telephone, so a cable is selected to suit the job ex. 22 phones use 30 pair with some spare pairs for additional telephones which may be added. PLEASE NOTE some telephone systems use TWO pairs for each phone ie voice & data

    TELEPHONE

    1 2

    RJ11 OUTLET

    TELEPHONE OUTLET TERMINATION

    1 2 3 4 5 6 7 8

    RJ45 OUTLET

    Voice Pair

    Data (if required )

    Data (if required )

    1 2 3 4

    Voice Pair

    Data (if required )

    Data (if required )

    Voice Pair

    INFINITY CABLING

  • Disconnect Module Switched connection through module pins, allows testing without cable removal

    Hi-band Module For Ethernet network cabling ie. jointing, patching etc.

    Connect Module Solid connection through module pins

    Krone (pronounced krona) Module Types

    Infinity Cabling

  • 20 Position Block ( 10 Pairs )

    KRONE TELEPHONE CABLING BLOCKS

    Connect Module 20 Point to Point Connection (Limited test options )

    Disconnect Module 20 Position Block ( 10 Pairs ) Point to Point Connection (Full test options )

    pabx

    Building Wiring

    pabx

    Building Wiring

    Normal Connection

    4 Pin Test Plug Inserted

    Test equipment

    All wiring available for testing without removing cable from krone block

    Building Wiring Building Wiring INFINITY CABLING

  • KRONE (Pronounced Krona ) Disconnect Module

    Termination Block for 10 Pairs Telephone Cable

    BLU

    E W

    HITE

    WH

    ITE

    WH

    ITE

    WH

    ITE

    WH

    ITE

    GR

    EE

    N

    BR

    OW

    N

    SLA

    TE

    OR

    AN

    GE

    RE

    D

    RE

    D

    RE

    D

    RE

    D

    RE

    D

    SLA

    TE

    BR

    OW

    N

    GR

    EE

    N

    OR

    AN

    GE

    BLU

    E

    1ST 5 Pairs 2nd 5 Pairs

    10 pairs

    10 blocks = 100 pairs

    20 pairs

    30 pairs

    40 pairs

    50 pairs

    60 pairs

    70 pairs

    80 pairs

    90 pairs

    100 pairs

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10 Typical 400 Pair MDF

    (Main Distribution Frame )

    INFINITY CABLING

  • PRIMARY COLOURS x 5 BLUE ORANGE GREEN BROWN SLATE (Grey)

    Telephone Cable Colour Code

    TRACE COLOURS X10 WHITE RED BLACK YELLOW WHITE / BLUE STRIPE RED / BLUE STRIPE BLACK / BLUE STRIPE YELLOW / BLUE STRIPE WHITE / ORANGE STRIPE ORANGE / RED STRIPE

    10 X 5 = 50 PAIRS

    EXAMPLE FIRST 10 PAIRS

    PRIMARY -- TRACE BLUE

    ORANGE GREEN BROWN SLATE

    WHITE WHITE WHITE

    WHITE WHITE

    BLUE ORANGE GREEN BROWN SLATE

    RED RED RED

    RED RED

    1 2 3 4 5

    6 7 8 9 10

    INFINITY CABLING

  • Phones, FAX, adsl etc.

    Telephone Exchange (SA TELKOM)

    Underground Cable

    Building Ground Floor

    Local DP G

    First Floor

    Second Floor

    Third Floor

    Local DP 2

    Local DP 1

    Local DP 3

    PBX System

    PBX Services Exts,Night bells etc

    User Devices (Office Wiring)

    PBX Cables Infinity Wiring

    Telkom Infrastructure

    Private Infrastructure

    Jumper Cable

    First Floor PBX System

    Ground Floor Single Phone

    PBX

    Second Floor Single Phone

    Second Floor Single Phone

    Telcom Trunk lines

    Krone Connection Block

    TYPICAL BUILDING DISTRIBUTION

    PBX- Private Branch Exchange PABX- Private Automatic Branch Exchange DP- Distribution Panel

    INFINITY CABLING

  • Telephone Exchange

    No call in Progress

    Call in Progress

    Xchange = ( Large Group of Switches )

    BASIC LAND LINE TELEPHONE SYSTEM

    Central Exchange

    Central Exchange

    Sub Exchanges Jim

    Alice

    Call from Jim To Alice

    Sub Exchanges

    Sub Exchange

    Cable, Microwave, Radio, Fiber Optic

    Jim Alice

    INFINITY CABLING

  • PABX Equipment

    Telephone Exchange

    Company Premises

    User Extensions

    Building Cabling

    Incoming Telkom Lines from Exchange

    Private Automatic Branch Exchange Telkom

    Cell Phone Routers

    This Part Installed by Infinity Cabling

    INFINITY CABLING

    Ratio of Telkom lines to extensions is determined by user requirements, however PBX Systems are supplied with a specific number of lines/ext. System should be chosen carefully with upgrade options available for expansion.

  • PABX Equipment

    Telephone Exchange

    Company Premises

    User Extensions

    Building Cabling

    Incoming Telkom Lines from Exchange

    Private Automatic Branch Exchange Telkom

    Cell Phone Routers (Quantity chosen by Pabx User )

    This Part Installed by Infinity Cabling

    sim

    Cell Phone Network

    call to cell phone

    Wireless signal Transmitted

    sim sim

    Extension call to cell number, routed to cell network directly To bypass Telkom system to save cost on connection charge

    INFINITY CABLING

  • DECT TECHNOLOGY

    Digital Enhanced Cordless Telecommunications

    Called Cordless Phones, Wireless Handsets etc

    Basic System

    Base Station/ Battery Charger Telecom Line

    DC Power

    DECT Handset

    Typical Unit

    This Phone is a fixed line system with a Wireless handset (range +/- 30 mtrs )

    Multiple Handset System

    Answering Machine, intercom, call holding etc.

    Base Station Chargers

    PABX PBX

    DECT Enabled Pabx system

    Telecom Lines

    Wired Handsets

    DECT Base Station

    Line / ext

    DECT Handsets BS2/2 DECT Base Station

    Example SIEMENS

    INFINITY CABLING

    Pronounced dek

  • Cable under test

    Tone Generator

    Magnet Field around Cable (caused by Tone generator )

    Amplified Probe (Detects magnetic field and generates an audible tone)

    Ampli

    fied P

    robe

    Antenna

    Basic Tone Generator Operation

    INFINITY CABLING

    The probe will amplify all signals detected on cable including voice conversation, noise, data etc. This may cause the generated tone not to be heard.

  • Tone Generator Transmits a data word over and over

    Magnet Field around Cable

    Amplified Probe Detects data word and turns on green Sync light. As the probe gets physically closer to cable being searched for an audio tone is generated and signal strength lights turn on.

    Amplif

    ied Pr

    obe

    FLUKE Intellitone Tone Generator Operation

    INFINITY CABLING

    0110101

    0110101 0110101

    0110

    101

    0110101

    The Fluke Probe only listens for a specific code and ignores all other signals present on cables

  • Adsl Router

    pc

    Network Cable

    TEL. Wall Socket

    Adsl Router

    pc

    Network Cable

    TEL. Wall Socket

    Standard ADSL Installation

    Additional Telephone Outlets Network Cabling

    if Multiple PCs on single ADSL Router/Switch

    Adsl Router

    INFINITY CABLING

    ADSL FILTER

    F

    FAX MC

    F

    Voice Service

    Telephone Line

    Telkom

    F

    Nb: All Voice Services Have same number !

    Telephone Cabling

    Switch Telephone Cable

    Network Cable

    ADSL Asynchronous Digital Subscriber Line

    Telephone Line

    Telkom

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