FIBRE OPTICS

1
FIBRE OPTICS

• INTRODUCTION
• TO
• FIBRE OPTIC CABLES

2
HOW DOES FIBRE OPTIC WORK ?

• Carries Signals as Light Pulses
• signals converted from electrical to light (and
  visa-versa) by special equipment
• e.g. fibre-optic transceiver (transmitter /
  receiver)

3
FIBRE CONSTRUCTION
8, 50, 62.5 Core Glass
125 Cladding Glass
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PRIMARY BUFFER
Primary Buffer 250
Cladding 125
Core (62.5)
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SECONDARY BUFFER
Secondary Buffer 900
Primary Buffer 250
Cladding 125
Core (62.5)
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FIBRE MATERIAL

• Silica Glass
• used for high-speed data applications
• Plastics
• used for low-speed data / voice applications
• Composite Constructions
• used for low-speed and specialized applications

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FIBRE TRANSMISSION

• Multi-Mode
• graded-index
• used for short / medium distance applications
• step-index
• early fibre type - no longer used
• Single-Mode
• a.k.a Mono-Mode
• used for long-distance / very high-speed
  applications
• e.g. cross-country and transatlantic
  communications

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LIGHT TRANSMISSION
MultiMode Step Index
MultiMode Graded Index
SingleMode
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COMMON FIBRE SIZES
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TIGHT JACKET
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LOOSE TUBE CONSTRUCTION
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FIBRE CABLE CONSTRUCTION

• Tight-Buffer
• fibre has primary and secondary coatings
• outer jacket is drawn tight over fibre
• used mainly for indoor applications
• Loose-Tube
• fibre has primary buffer only
• fibres are loosely-packed in support tube
• used mainly for outdoor applications

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INDUSTRIAL FIBRE CABLES
NON-METALLIC FIBRE OPTIC DUCT CABLE 2-12 FIBRE
DATA SHEET SST1
NON-METALLIC FIBRE OPTIC DUCT CABLE 12-24 FIBRE
DATA SHEET SST2
INTERSTICES
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INDUSTRIAL FIBRE CABLES
NON-METALLIC FIBRE OPTIC EXTERNAL CABLE 2 - 24
FIBRES
DATA SHEET SST5
INDOOR/OUTDOOR INDUSTRIAL CABLE 2-12 FIBRE
DATA SHEET SST6
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INDUSTRIAL FIBRE CABLES
FIRE SURVIVAL FIBRE OPTIC CABLE
DATA SHEET SST7
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INDUSTRIAL FIBRE CABLES
ARMOURED FIBRE OPTIC CABLE 2-24 FIBRE
DATA SHEET SST3
LEAD SHEATHED AND ARMOURED FIBRE OPTIC CABLE
2-24 FIBRE
DATA SHEET SST4
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• CCTV SYSTEMS OVER OPTICAL FIBRE

INTRODUCTION TRAINING
18
What is Closed Circuit Television?

• CCTV Installations are
• Directly Linked
• Non Broadcast Video Systems

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VIDEO DATA AUDIO TRANSMISSION EQUIPMENT
FOR SECURITY AND SURVEILLANCE
END USER APPLICATION AREAS

• City Center Surveillance
• Utilities - Water/Gas/Electricity
• Traffic Surveillance
• Railways - Station Complexes
• London Underground Ltd
• Shopping Complexes
• Ministry of Defense
• Airports
• Public Business Parks
• Power Stations

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What are the Basic System Components?

• Camera Black White or Colour
• Lens ( Fixed or variable Focus)
• Iris ( Manual or Automatic)
• Power ( DC,AC, Mains.)
• Transmission
• Coaxial Cable
• Twisted Pair
• Optical Fibre
• Microwave Point to Point
• Infra Red Point to Point
• Monitor Black White or Colour
• Screen Size 9 to 19
• Resolution Vertical 625 Lines
  (PAL)
• Horizontal 750 type B/W
• 330 type Colour

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OPTICAL FIBRE TRANSMISSION SYSTEM

• Operating Wavelength 850nm
• Multimode Fibre 50/125 or 62.5/125
• Video Signal (Composite) 1Volt peak to peak
• Video Only Operation Signal Fibre
• VideoDataAudio Operation Dual Fibre

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OPTICAL FIBRE TRANSMISSION SYSTEM

• Bi - Directional Data
• RS 232
• RS 422
• RS 485
• 20mA Current Loop
• TTL
• Bi Directional Audio
• Bandwidth 50Hz-20KHz
• I/P Z 47Kohm
• O/P Z lt20ohm
• Signal/Noise 45dB

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PRODUCT SELECTION GUIDE
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PRODUCT RANGE

• 2100 Series Rackmount Plugin Modules
• 2200 Series Standalone Units
• 2300 Series Mini Modules
• Video Only Facilities
• 2321 Video Tx Minimodule
• 2111 Single Channel Video Rx Rack
• 2113 3 Channel Video Rx Rack
• 2211 Single Channel Rx Standalone
• 2213 3 Channel Rx Standalone
• Video Data Audio Facilities
• 2130 Video Rx Data Tx/Rx Audio Tx/Rx Rack
• 2240 Video Tx Data Tx/ Rx Audio Tx/Rx
  Standalone
• Video Data Facilities
• 2150 Video Rx Data Tx/Rx Rack
• 2260 Video Tx Data Tx/Rx Standalone

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Market by Customer Typend Users rely on -

• Consultants
• Specify The System Requirements.
• System Integrators
• Respond to the Specification with a Best
  Solution based on Price Performance.
• e.g.. Thorn Security Chubb
  Alarms Securicor Security Systems
• Installers
• Serve System Integrators by providing
  installation services which may include the
  supply of cable transmission equipment.
• e.g.. Drake Scull Eurotech
  Services Larkins Security Cerberus
  Ltd

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SYSTEM LAYOUTVIDEO ONLY - Standalone
Configuration
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SYSTEM LAYOUTVIDEO ONLY - Rackmount System
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SYSTEM LAYOUTVideo - Audio - Data Camera Site
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SYSTEM LAYOUTVideo - Audio - Data