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1 © 2015 EXFO Inc. All rights reserved. No. cause of network failures is BAD connectors NTTAdvanced Technology Research 1 Network owners report having connector issues 80%

Best Practices Fiber and SFP Inspection

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1© 2015 EXFO Inc. All rights reserved.

No.cause  of  networkfailures is BADconnectors-­ NTT-­Advanced  Technology Research1Network  owners  report  having  connector  issues80%

2© 2015 EXFO Inc. All rights reserved.

Why Inspect?

Cleaning alone is not  enough…or  too much!

You CANNOT clean a damaged connector

Clean ONLY if neededNO cleaning required

3© 2015 EXFO Inc. All rights reserved.

Why Inspect?• Biggest enemy:  Fingers!• Cleaning once  may not  be enough.

How  do  you know  if  you don’t inspect?

4© 2015 EXFO Inc. All rights reserved.

Why Inspect?

Sticky fingers!

5© 2015 EXFO Inc. All rights reserved.

Why Inspect?• DRY  Cleaning is not  enough.• Hybrid cleaning:  Required• Inspection:  Mandatory!

6© 2015 EXFO Inc. All rights reserved.

Why Inspect?

Dusty dust caps!!!

7© 2015 EXFO Inc. All rights reserved.

Patch  panels  are  hard  to  inspect

Without Auto-­‐center With Auto-­‐center

Why use  auto-­center?

More  than50%  TIME  SAVINGS

8© 2015 EXFO Inc. All rights reserved.

57%  inspection  time  reduction

Case  Study:  Auto-­center Time  Savings

Hassle free  image  auto-­centeringfeature:• Inspection  time  down   from 32  to  14  seconds/port

• More  than 2  hours saved for  a  432   fiber typicalFTTH  cabinet  inspection

• $25  000  in  potential savings over  a  yearassuming one  cabinet  per  day at 50$/h

9© 2015 EXFO Inc. All rights reserved.

Subjectivity….Good  or  Bad?Re-­Splice or  not?

10© 2015 EXFO Inc. All rights reserved.

Subjectivity….• Greatly reduce subjectivity with P/F  Analysis software• IEC/IPC  or  Custom

11© 2015 EXFO Inc. All rights reserved.

Analysis &  Reporting

1. Analysis software  is essential  to  remove subjectivity

2. Reportingagainst IEC  61300-­‐3-­‐35  is highly recommended

12© 2015 EXFO Inc. All rights reserved.

But  can we trust  inspection  results?

13© 2015 EXFO Inc. All rights reserved.

Poor  focus  =  false  resultsManual Focus:  30  to  45%  False  Positives

14© 2015 EXFO Inc. All rights reserved.

Even the  best  user  may miss  defects usinglow end  inspection  

devices

15© 2015 EXFO Inc. All rights reserved.

ELIMINATE  Subjectivity

Auto-­‐Focus  =  Accurate  and  repeatable  results

16© 2015 EXFO Inc. All rights reserved.

100%  AUTOMATED

STEP

TURNING  FIBER  INSPECTION  INTO  A  ONE-­‐STEP  PROCESS

1

17© 2015 EXFO Inc. All rights reserved.

SCREENLESS  inspection• Speed  up  testing• Ease of  use

Looks  at  the  SD  screento  see the  problem

FAIL

User  performsconnectorcertification  

without lookingat  the  smart  

device

Goes  to  the  nextinspection  WITHOUT  looking at  the  screen

PASS

DAMAGED = REPLACE

DIRTY = CLEAN

18© 2015 EXFO Inc. All rights reserved.

Bad  connector can be costly

NETWORK  UPGRADE  &  SLA  FAILURES• Bad  connectorsmaywork at  lowdata  rate  and  fail at  higher data  rate• Some soils can change  over  time  (freezing,  drying,  etc)

TROUBLESHOOTING  ISSUES• A  hidden fail will lead  to  troubleshootinganywhere but  where the  

problem is located leading to  time  wasted

UNACCURATE  TEST  RESULTS• Bad  connectorswill affect  test  results and  lead  to  retesting (IL,  ORL  &  

T&D)

19© 2015 EXFO Inc. All rights reserved.

Recommended inspection  tools

FIP-­‐435B Wi-­‐Fi  Fiber Inspection  probe FIP-­‐430B USB  Fiber Inspection  probe