KHNOG Micro-Event July 2016 Mr. Rithy Kong

1. 1© 2015 EXFO Inc. All rights reserved.
No.
cause of network
failures is BAD
connectors
-­ NTT-­Advanced Technology Research
1Network owners report
having connector issues80%

2. 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. 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. 4© 2015 EXFO Inc. All rights reserved.
Why Inspect?
Sticky fingers!

5. 5© 2015 EXFO Inc. All rights reserved.
Why Inspect?
• DRY
Cleaning is not
enough.
• Hybrid cleaning:
Required
• Inspection:
Mandatory!

6. 6© 2015 EXFO Inc. All rights reserved.
Why Inspect?
Dusty dust caps!!!

7. 7© 2015 EXFO Inc. All rights reserved.
Patch panels are hard
to inspect
Without Auto-­‐center With Auto-­‐center
Why use auto-­center?
More than
50% TIME
SAVINGS

8. 8© 2015 EXFO Inc. All rights reserved.
57%
inspection time
reduction
Case Study:
Auto-­center Time Savings
Hassle free image auto-­centering
feature:
• Inspection time down from 32 to 14 seconds/port
• More than 2 hours saved for a 432 fiber typical
FTTH cabinet inspection
• $25 000 in potential savings over a year
assuming one cabinet per day at 50$/h

9. 9© 2015 EXFO Inc. All rights reserved.
Subjectivity….
Good or Bad?
Re-­Splice or not?

10. 10© 2015 EXFO Inc. All rights reserved.
Subjectivity….
• Greatly reduce subjectivity with P/F Analysis software
• IEC/IPC or Custom

11. 11© 2015 EXFO Inc. All rights reserved.
Analysis & Reporting
1. Analysis software
is essential
to
remove subjectivity
2. Reportingagainst IEC
61300-­‐
3-­‐35
is highlyrecommended

12. 12© 2015 EXFO Inc. All rights reserved.
But can we trust
inspection results?

13. 13© 2015 EXFO Inc. All rights reserved.
Poor focus = false results
Manual Focus: 30 to 45% False Positives

14. 14© 2015 EXFO Inc. All rights reserved.
Even the best user
may miss defects using
low end inspection
devices

15. 15© 2015 EXFO Inc. All rights reserved.
ELIMINATE Subjectivity
Auto-­‐Focus
=
Accurate
and
repeatable
results

16. 16© 2015 EXFO Inc. All rights reserved.
100%
AUTOMATED
STEP
TURNING
FIBER
INSPECTION
INTO
A
ONE-­‐STEP
PROCESS
1

17. 17© 2015 EXFO Inc. All rights reserved.
SCREENLESS inspection
• Speed
up
testing
• Ease of
use
Looks
at
the
SD
screen
to
see the
problem
FAIL
User
performs
connector
certification
without looking
at
the
smart
device
Goes
to
the
next
inspection
WITHOUT
looking at
the
screen
PASS
DAMAGED = REPLACE
DIRTY = CLEAN

18. 18© 2015 EXFO Inc. All rights reserved.
Bad connector can be costly
NETWORK
UPGRADE
&
SLA
FAILURES
• Bad
connectors maywork 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 leadingto
time
wasted
UNACCURATE
TEST
RESULTS
• Bad
connectors will affect
test
results and
lead
to
retesting(IL,
ORL
&
T&D)

19. 19© 2015 EXFO Inc. All rights reserved.
Recommended inspection tools
FIP-­‐435B Wi-­‐Fi
Fiber Inspection
probe FIP-­‐430B USB
Fiber Inspection
probe