Fiber optic technology basics
Sponsored Links
This presentation is the property of its rightful owner.
1 / 50

Fiber Optic Technology Basics PowerPoint PPT Presentation


  • 319 Views
  • Uploaded on
  • Presentation posted in: General

Fiber Optic Technology Basics. WHY USE FIBER OPTICS?. Superior Signal Quality Long Distance Signal Transmission Protection from Ground Loops Secure Communications Smaller Size, Lighter Weight Cable Immunity to Electrical Interference Lightning Isolation - Transient Protection

Download Presentation

Fiber Optic Technology Basics

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Fiber Optic

TechnologyBasics


WHY USE FIBER OPTICS?

  • Superior Signal Quality

  • Long Distance Signal Transmission

  • Protection from Ground Loops

  • Secure Communications

  • Smaller Size, Lighter Weight Cable

  • Immunity to Electrical Interference

  • Lightning Isolation - Transient Protection

  • Safety In Hazardous Locations

  • Expansion Capability

  • Long Life Of Infrastructure

  • Most Cost Effective


FIBER OPTIC SYSTEM COMPONENTS

Transmitter

Receiver

Fiber Optic Cable

Coaxial Cable

Coaxial Cable

Video Camera

Monitor


FIBER CORE CONSTRUCTION

Core

8 um to 62.5 um

Cladding

125 um

Plastic Coating

250 um


TYPES OF FIBER

125um

Cladding Diameter

62.5um Core

9um Core

50um Core

SINGLEMODE

MULTIMODE


Optical

Loss Budgets


SYSTEM OPTICAL LOSSBudget Analysis (Standards)


SYSTEM OPTICAL LOSS BUDGET

MARGIN

  • Protection Against System Degradation

  • Factored Into System Design

  • Typically 3db Margin Allowance is Designed into System


Connectors

Passive Coupler

Splice

Patch Panel

Patch Panel

LOSS BUDGET COMPONENTS

Transmitter

Receiver

Fiber Optic Cable


LOSS BUDGET

COMPONENTS:

PATCH

PANEL

62.5 MICRON FIBER

PATCH

PANEL

TRANSMITTER

RECEIVER

VF-

???

VF-

???

6000 ft

Transmitter Power : dBm Fiber Cable: dB

- Receiver Sensitivity: dBm + Patch Panels: dB

Loss Budget: dB System Loss: dB

- System Loss: dB

Margin: dB


LOSS BUDGET

COMPONENTS:

PATCH

PANEL

62.5 MICRON FIBER

PATCH

PANEL

TRANSMITTER

RECEIVER

VF-

100T

VF-

100R

6000 ft

Transmitter Power : -18 dBm Fiber Cable: dB

- Receiver Sensitivity: -30 dBm + Patch Panels: dB

Loss Budget: dB System Loss: dB

- System Loss: dB

Margin: dB


LOSS BUDGET

COMPONENTS:

PATCH

PANEL

62.5 MICRON FIBER

PATCH

PANEL

TRANSMITTER

RECEIVER

VF-

100T

VF-

100R

6000 ft

Transmitter Power : -18 dBm Fiber Cable: dB

- Receiver Sensitivity: -30 dBm + Patch Panels: dB

Loss Budget: 12 dB System Loss: dB

- System Loss: dB

Margin: dB


LOSS BUDGET

COMPONENTS:

PATCH

PANEL

62.5 MICRON FIBER

PATCH

PANEL

TRANSMITTER

RECEIVER

VF-

100T

VF-

100R

6000 ft

Transmitter Power : -18 dBm Fiber Cable: 6 dB

- Receiver Sensitivity: -30 dBm + Patch Panels: dB

Loss Budget: 12 dB System Loss: dB

- System Loss: dB

Margin: dB


LOSS BUDGET

COMPONENTS:

PATCH

PANEL

62.5 MICRON FIBER

PATCH

PANEL

TRANSMITTER

RECEIVER

VF-

100T

VF-

100R

6000 ft

Transmitter Power : -18 dBm Fiber Cable: 6 dB

- Receiver Sensitivity: -30 dBm + Patch Panels: 2 dB

Loss Budget: 12 dB System Loss: dB

- System Loss: dB

Margin: dB


LOSS BUDGET

COMPONENTS:

PATCH

PANEL

62.5 MICRON FIBER

PATCH

PANEL

TRANSMITTER

RECEIVER

VF-

100T

VF-

100R

6000 ft

Transmitter Power : -18 dBm Fiber Cable: 6 dB

- Receiver Sensitivity: -30 dBm + Patch Panels: 2 dB

Loss Budget: 12 dB System Loss: 8 dB

- System Loss: 8 dB

Margin: dB


LOSS BUDGET

COMPONENTS:

PATCH

PANEL

62.5 MICRON FIBER

PATCH

PANEL

TRANSMITTER

RECEIVER

VF-

100T

VF-

100R

6000 ft

Transmitter Power : -18 dBm Fiber Cable: 6 dB

- Receiver Sensitivity: -30 dBm + Patch Panels: 2 dB

Loss Budget: 12 dB System Loss: 8 dB

- System Loss: 8 dB

Margin: 4 dB


Loss Budget Parameters


General Loss Budget Guidelines

  • Applications Less than 1 Mile Typically Multimode

  • Applications More than 3 Miles Typically Singlemode


Vicon

Fiber Optic Products


100 Series Single Channel, Low Cost, FM Video Transmission System

  • For Distances Up To 2.5 Km (1.5 Miles )

  • Full Color Transmission

  • Compatible With NTSC, PAL, CCIR Standards

  • Internal Dome Mount Versions Available

    • VF-143TD For Surveyor Dome

    • VF-144TD For Roughneck Dome

  • Diagnostics for Video, Power & Optical Presence

  • Available As Modules or Rack Cards


30 SeriesSingle Channel 3 Ports Per Card Rackmount FM Video Transmissions Systems

  • For Distances Up To 2.5 Km (1.5 Miles)

  • Full Color Transmission

  • Diagnostics for Video, Power & Optical Presence

  • Compatible With 100 Series Products

  • “High Density”- 42 Video Ports Per Rack

  • Least Expensive Video Link Available

  • Available As Rack Cards Only


404/440 Series Single Fiber Four Channel Video System

  • For Distances Up To 25km (15+ Miles)

  • Real Time Video Transmission

  • Full Color Transmission

  • Diagnostics for Video, Power & Optical Presence

  • Compatible With NTSC, PAL, CCIR Standards

  • Available As Stand Alone Modules or Rack Cards


1400 / 1600 SeriesSingle Fiber Bi-Directional Transceivers - Low Profile

  • For Distances Up To 3 KM (1.8 Miles)

  • Full Color Transmission

  • Smallest Profile Available Anywhere

  • 1400 Series and 1431 Series Compatible With Vicon RS422 Control

  • 1605 Series and 1631 Series Compatible With Vicon Vicoax Control

  • Compatible With NTSC, PAL, CCIR Standards

  • Available As Stand Alone Modules or Rack Cards


VF-SR-20/2


Typical System

Configurations


VF-SR20/2

14 Slot Card Cage with Power Supply

Data

Coax

Fiber

POINT-TO-POINT VIDEO/DATA

#1

VF-

1400T

VF-1400RR


VF-SR20/2

14 Slot Card Cage with Power Supply

Data

Coax

Fiber

VIDEO/DATA & VIDEO w/ DAISY CHAIN DATA

#2

#1

VF-

1400T

VF-

100T

*Spare Fiber is Used. Transmitter Modules are mounted together in the same enclosure

VF-1400RR

VF-100RR


VIDEO/DATA & 4 CHANNEL VIDEO

w/ DAISY CHAIN DATA

VF-SR20/2

14 Slot Card Cage with Power Supply

Data

Coax

Fiber

#2

#1

VF-

1400T

VF-

404T

#3

#5

#4

*Spare Fiber is Used. Transmitter Modules are mounted together in the same enclosure

VF-1400RR

VF-404RR


CAMPUS SETTINGBuilding to Building-Unlimited Fibers

4 Units VF-SR-20/2

16 Units Each VF-30TR/RR

Bldg “B”

Bldg. “A”

Control Room

Riser Cable

48 Fibers for 48 Videos

Patch Panel

Patch Panel


CAMPUS SETTINGBuilding to Building-Limited Fibers

4 Units VF-SR-20/2

12 Units Each VF-404TR/RR

Bldg “B”

Bldg. “A”

Control Room

Riser Cable

12 Fibers for 48 Videos

Patch Panel

Patch Panel


Troubleshooting


Start with basic information:

  • What Model Number?

  • What Power Supply?

  • Fiber Type?

  • Instruction Manual?

  • Pin-outs


Things To Check:

  • LED Indicators:

    • OLI Optical Loss Indicator

    • VLI Video Loss Indicator

    • PWR Power Indicator


Things To Check:

  • Transmission Distance?

  • What Splices and Patches are in the system?

  • Loss Budget (Calculated vs. Actual)


More detailed troubleshooting:

  • Patch cords

  • Proper audio balance

  • Misaligned connectors

  • 75 ohm video termination

  • 120 ohm RS485 (RS422) data terminations

  • Physical damage (Shock, water…)


Diagnostic

Indicators


DiagnosticsModule Bi-directional

VLI

OLI

Fiber

Video

Data

Power

Bi-Directional Module

VF-1400T


DiagnosticsRack Card Bi-directional

OLI

VF-1400RR


DiagnosticsVF-404TR

VLI 1

VLI 2

VLI 3

VLI 4

VF-404TR


DiagnosticsVF-404RR

PWR

OLI

VF-404RR


Tools and

Test Equipment


POWER METER

  • The Volt-ohm-meter of Fiber Optics (Basic Troubleshooting Tool)

  • Switch Selectable Wavelength

  • Adapters for Different Connectors

  • Display Readout Directly in dBm


Video Camera

Transmitter

RECEIVED POWER

Coupler

Coupler

62.5u, 1 Km.

-23.0 dBm

-18.0 dBm

Launch Power = -18 dBm

Coupler Loss = (1dB x 2) -2 dB

Fiber Loss = 3dB/Km @ 850nm -3 dB

Received Power = -23 dBm


  • Login