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Optical Fiber Communication
Losses & Measurement Tools
Test Equipment
1. OTDR
2. Power Meter
3. VFL
4. Optical Continuity Tester
Test Equipment
1.OTDR (Optical time domain Reflectometer)
It can verify splice loss, measure length and find
faults.
Handheld OTDR
OTDR Output
2.Power Meter
Single-mode/Multimode Loss Test Kit
• Measure true loss of fiber
• Fiber identification
• Certify Fiber for ...
3.VFL(Visual Fault Locator)
Visual fault locator testing devices use for
• to trace optical fibers,
• check fiber continui...
VFL uses powerful visible light at the 360 to
670nm wavelength injecting to a fiber to visually
and directly locate the fa...
4.Optical Continuity Tester
Fiber Optic Connectors
SC (Subscriber Connector)
• Square connector
• Push-Pull snap
LC (Lucent/little connector)
• Small ...
Fiber Optic Installation
Installation Checklist
Pre-install checklist:
• PWD Permission
• Contractor Availability
• Worker Health
Before starting the install:
• All permits available for inspection
• Sites prepared, power available
• All components on ...
During The Installation:
• Inspect workmanship at every step
• Daily review of process, progress, test data
• Immediate no...
After completion of cable plant
installation:
• Inspect workmanship
• Review test data on cable plant
• Set up and test co...
©2015, The Fiber Optic Association, Inc.
Fiber Optic Installation - Outside Plant
• Microtrenching
Digging up roadways to install cables has been
used in the past but often leads to complaints
about the c...
HDD(Horizontal directional digging)
Fiber installation Method
• There are two major types:-
1. Pulling Methods
2. Blowing methods
Pulling
• Traditionally fibre optic cables were pulled
through cable ducts in the same way as other
cables, via a winch li...
Blowing method
Blowing Methods Types
• High Air Speed Blowing
• Air-Assist
• Push/Pull Installation
• Air Blown Cable
• Cable Jetting
Air Blowing System
The force in air blowing first comes from a
mechanical device which pushes the cable; and
second, from ...
Submarine Cable installation
©2015, The Fiber Optic Association, Inc.
Fiber Optic Installation -Premises
Thank you
Ofc day 3
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Ofc day 3

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Ofc day 3

  1. 1. Optical Fiber Communication Losses & Measurement Tools
  2. 2. Test Equipment 1. OTDR 2. Power Meter 3. VFL 4. Optical Continuity Tester
  3. 3. Test Equipment 1.OTDR (Optical time domain Reflectometer) It can verify splice loss, measure length and find faults.
  4. 4. Handheld OTDR
  5. 5. OTDR Output
  6. 6. 2.Power Meter Single-mode/Multimode Loss Test Kit • Measure true loss of fiber • Fiber identification • Certify Fiber for Sale/IRU
  7. 7. 3.VFL(Visual Fault Locator) Visual fault locator testing devices use for • to trace optical fibers, • check fiber continuity and • find faults such as breaks, bad splices and tight, sharp bends in fiber optic cable.
  8. 8. VFL uses powerful visible light at the 360 to 670nm wavelength injecting to a fiber to visually and directly locate the faults in fiber optic cable. • Standard 450nm The most popular visual fault locators are pen shape VFL and hand-held VFL, which are showed in the following picture respectively.
  9. 9. 4.Optical Continuity Tester
  10. 10. Fiber Optic Connectors SC (Subscriber Connector) • Square connector • Push-Pull snap LC (Lucent/little connector) • Small high density • Snap fit • Used on Lasers(XFP/SFP) ST (Straight Tip) • Round • Twist lock • Common in Sub Stations UPC (Ultra Physical Contact)polish style of fiber optic ferrules • Standard for most applications APC (Angled Physical Contact) • Has Lower lightwave reflectance • Used in RF optical applications
  11. 11. Fiber Optic Installation
  12. 12. Installation Checklist Pre-install checklist: • PWD Permission • Contractor Availability • Worker Health
  13. 13. Before starting the install: • All permits available for inspection • Sites prepared, power available • All components on site, inspected, 24-hour security arranged if necessary Contractor available • Relevant personnel notified • Safety rules posted on the job site(s) and reviewed with all supervisors and installation personnel
  14. 14. During The Installation: • Inspect workmanship at every step • Daily review of process, progress, test data • Immediate notification and solution of problems, shortages, etc.
  15. 15. After completion of cable plant installation: • Inspect workmanship • Review test data on cable plant • Set up and test communications system • Update and complete documentation • Update and complete restoration plan Store restoration plan, documentation, components, etc.
  16. 16. ©2015, The Fiber Optic Association, Inc. Fiber Optic Installation - Outside Plant
  17. 17. • Microtrenching Digging up roadways to install cables has been used in the past but often leads to complaints about the condition of the road once the cable has been installed.
  18. 18. HDD(Horizontal directional digging)
  19. 19. Fiber installation Method • There are two major types:- 1. Pulling Methods 2. Blowing methods
  20. 20. Pulling • Traditionally fibre optic cables were pulled through cable ducts in the same way as other cables, via a winch line.
  21. 21. Blowing method
  22. 22. Blowing Methods Types • High Air Speed Blowing • Air-Assist • Push/Pull Installation • Air Blown Cable • Cable Jetting
  23. 23. Air Blowing System The force in air blowing first comes from a mechanical device which pushes the cable; and second, from the force of moving air on the cable jacket, or alternatively, the force of air on a piston, missile, or carrier at the front end of the cable.
  24. 24. Submarine Cable installation
  25. 25. ©2015, The Fiber Optic Association, Inc. Fiber Optic Installation -Premises
  26. 26. Thank you

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