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Telephone cabling-basics
- 1. TELEPHONE CABLING TECHNOLOGY INFINITY CABLING
- 2. 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
- 3. 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 Cable INFINITY CABLING
- 4. 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
- 5. 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
- 6. 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
- 7. KRONE (Pronounced “Krona” ) Disconnect Module Termination Block for 10 Pairs Telephone Cable BLUE WHITE WHITE WHITE WHITE WHITE GREEN BROWN SLATE ORANGE RED RED RED RED RED SLATE BROWN GREEN ORANGE BLUE 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
- 8. 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
- 9. 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
- 10. 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
- 11. 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.
- 12. 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
- 13. 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”
- 14. Cable under test Tone Generator Magnet Field around Cable (caused by Tone generator ) Amplified Probe (Detects magnetic field and generates an audible tone) A m p l i f i e d P r o b e 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.
- 15. 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. Amplified Probe FLUKE Intellitone Tone Generator Operation INFINITY CABLING 0110101 0110101 0110101 0110101 0110101 The Fluke Probe only listens for a specific code and ignores all other signals present on cables
- 16. 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 PC’s 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