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Simpler testing approaches - solutions other than full-blown LSPM and OTDR? Robert Luijten
EMEA Field Marketing Manager Fluke Networks
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Agenda
Comparing Features & Functions – LSPM vs. OLTS – End Face Inspection
Added value through Wizards Smart Extended Test Regime
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Standard Methods
TIA-568-C
Tier-1 Tier-2
ISO 11801 AMD.1 / ISO/IEC 14763-3
BASIC Test Regime EXTENDED Test Regime
LSPM: Light Source & Power Meter or OLTS: Optical Loss Test System
OTDR: Optical Time Domain Reflectometer
Fiber Optic Test Methods
• The two methods are complimentary ! – OTDR based method does not replace the LSPM based solution
• Both methods have advantages and limitations © FlukeNetworks 3
LSPM vs. OLTS
Function1 LSPM SimpliFiber PRO
OLTS CertiFiber PRO
Measures Loss yes yes
Duplex Test yes
Dual Wave Length & AutoDetect yes yes
Measures Length & Calculates PASS/FAIL Limits yes
Wizard for setting reference yes
Preload project info & limits yes
Preload link ID Yes
Save result with link ID Seq.# yes
“Hands Free” Bi Directional Tests yes
Encircled Flux Compliant yes yes
1 Jumper Reference Setting (LC) yes yes
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Normative Requirement • ANSI/TIA-526-14-B • ISO 1180 ISO/IEC 14763-3 Ed.1 62 • EN 50173 IEC IEC 61280-4-2
In the past … …Expensive & Bulky
It is highly recommended by many manufacturers in particular when testing highest grade components for very demanding limits
Today … … 1.) Less expensive 2.) Smaller then a mandrel
It helps to prevent 1. FASLE FAILs
… Revenue at risk 2. FALSE PASSes … Reputation at risk
Never … … does not work reliably
Encircled Flux
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Marginal Compliant Link Marginal Failing Link
EF
MPD
Encircled Flux helps to prevent FALSE PASSes and FALSE FAILs
“FALSE FAIL“… Revenue at
Risk
“FALSE PASS“… Application at
Risk
LIMIT TRUE LOSS
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Do you have the correct equipment?
Does your equipment have fixed SC input ports? Testing LC links with fixed SC input ports = high risk
to negative loss values Fixed SC Inputs
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Do you have the correct equipment? You need to have test equipment with
interchangeable adapters on the input ports – as shown below
Changeable Inputs
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Do you have the correct equipment? Using SC to LC adapters (shown below) is not an
option – It’s a very short patch cord – You will be doing a 2 jumper reference, not a 1 jumper
reference Fixed SC Inputs
SC
LC
World’s shortest patch cord
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SimpliFiber PRO
Dual wave length – Auto detect
EF compliant ICA “Check Active” Port Detect Save 1000 Results FindFiber Remote Cable ID
detect Single mode and multimode
light sources © FlukeNetworks
Fiber Inspection
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Fiber Viewer
Rugged, portable, ergonomic tool Easy, manual focus of precision optics Factory-tested filters to protect eyes
from harmful light exposure Universal adapters allow for
inspection of end-faces on many different connector types
Available in 200x or 400x magnification
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FI 7000 Fiber Inspector PRO
2 second Auto PASS/FAIL certification Graphical indication of problem
areas due to contamination, pits, chips, and scratches
Certify to industry standards - IEC 61300-3-35
Eliminate human subjectivity from fiber optic connector end-face measurements
Save fiber optic connector end-face views during certification process
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1-Jumper Reference Setting
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1 or 2 Jumper Reference?
One Jumper Two Jumper No idea what the loss is here you are referencing out
*
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Not selecting the 1-Jumper Method It’s possible BUT…
The user will be warned when trying to use an other method but 1-jumper
Selecting “Don’t show this message again” only lasts until then next power off/on cycle
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• You should perform a TRC verification test at regular intervals
• The TRC verification results should be included with your test results – VERSIV CertiFiber PRO’s built in
Set-Reference-Wizard verifies and documents the condition of the TRCs
• As a guide for field testing TRCs
– Multimode ≤ 0.15 dB – Singlemode ≤ 0.25 dB
Set Reference & TRC verification
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“Smart” Extended Test Regime
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Assumptions and findings from EMEA VOCs
Only a few understand that “OTDR provide more detailed but less accurate results”
ACEs favor OTDR over OLTS because it has the flair of “detailed” and it “looks like more value”
Manufacturers push for Tier-1 for warranty but will bow to accept OTDR instead of loosing a project
ALL are reluctant to accept the cost of a “true” EXTENDED test Regime consisting of LSPM/OLTS plus OTDR
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Example of multiple 30m Links
Example 1 Example 2 Example 3
Basic Test Regime (OLTS)
Link Budget 0.71 dB 0.71 dB 0.71 dB
Measured 0.40 dB 0.66 dB 0.60 dB
Headroom /Margin 0.31 dB 0.05 dB 0.11 dB
Extended Test Regime (OTDR)
Connection 1 0.12 dB 0.27 dB 0.45 dB
Fiber 0.09 dB 0.10 dB 0.10 dB
Copnnection 2 0.19 dB 0.29 dB 0.15 dB
20
• Budget = 0.3 + 0.11 + 0.3 = 0.71dB
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Conclusion:
Removes the barrier from using a true Tier-1 plus
Tier-2 Installer will be rewarded for delivering higher
quality and using better practices whilst reducing testing times
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Request your free Poster at : www.flukenetworks.com/Fiber-Certification-Process
The Challenge The Answer
Tight Loss Budgets
Little room for measurement
uncertainty
The ‘6 Steps’ of the Right Fiber Certification Process
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