Copy of T-72C - Cleaver Training.ppt

TYPE-72C+ Training
Girish Devadas -Sumitomo Electric Middle East
SUMITOMO ELECTRIC

Sumitomo Infocomm Division
SUMITOMO ELECTRIC
SPLICER
CLOSURE
CONNECTOR

Optical Fibre-measurements
SUMITOMO ELECTRIC
Coating 250um, Clad 125, core 8-9um

Fiber Different Types
SUMITOMO ELECTRIC
Multimode Fibre has large core diameter

Fiberoptic Network
Optical Budget = Rx ( dBm) – Tx ( dBm)
Total Loss = Fiber Loss ( dB) + Connector Loss ( dB) + Splice loss ( dB)
Typical Loss
Connector = 0.5dB
Splice = 0.05 dB
Fiber = 3dB @ 850, 1dB @ 1300 , 0.35dB@ 1310 , 0.25dB@1550
SUMITOMO ELECTRIC

Different SM Fibers
1. G652B – SM Fiber with high water peak value.
OLD Single Mode Fiber.
2. G652D- SM fiber with low water peak value. New
Single Mode Fiber
3. G653 - Dispersion Shifter Fiber. Fiber with Zero
Dispersion at 1550nm
4. G655 - Non Zero Dispersion Shifter Fiber. Fiber
which has low dispersion at 1550nm
5. G657 - Bend Insensitive Fiber . Used for FTTx
applications.
SUMITOMO ELECTRIC

Confidential
©2015 Sumitomo Electric Industries, Ltd. All Rights Reserved
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How Splicing machine works
Electrodes
Left Side
Fibre
Right Side
Fibre
Splicing happens at
high voltage and at
high temperature

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Precise Arc and Precise Alignment Makes good splice

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Core to Core Alignment
The V-Grooves can move independently to align the fibres
Sumitomo Electric uses Profile Alignment System ( PAS)

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Active Cladding Alignment
The Vee-Grooves can move independently to align the fibres
by looking at the CLADDING only T-400S is an Example
Cladding Alignment

BU-16 Li-ion battery-300 Splice Capacity
SUMITOMO ELECTRIC

Clean Lens Protector
SUMITOMO ELECTRIC
Clean with IPA . Then clean dry. Make sure the
correct lens protectors are placed on correct
positions. In auto mode X camera observes the
glow of the arc and then automatically adjust
arc power .
X Y

Example of clean V-Groove &
Good Electrodes

Example of worn out Electrodes & DirtyV-Grooves

Step 2 – Remove Electrodes
WARNING - MAKE SURE THE SPLICER IS SWITCHED OFF !!!
- Don’t not drop the electrodes !!!

Step 3 – Clean Objective Lenses
GENTLY AND CAREFULLY Clean the Objective Lenses
by using IPA Alcohol and Cotton Buds

Clean the LED
SUMITOMO ELECTRIC

V-groove Cleaning
Put one drop of IPA onto v-groove. Clean with bare fibre.
Using a cotton bud, wipe out excess dirt

Check Electrode Condition
SUMITOMO ELECTRIC

Menu Button
SUMITOMO ELECTRIC
Touch
Here

Select Splice Program
SUMITOMO ELECTRIC

Select Heater Program
SUMITOMO ELECTRIC

Arc Test
SUMITOMO ELECTRIC
Touch

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Arc Check Function
The Right Side Fibre
has melted back more.
It has a lower melting
temperature.
Even though fibers are in the same ITU-T category they may be manufactured using various processes
(OVD, MCVD, PCVD, VAD) and also have different dopant concentrations (e.g. Germanium in the core).
Therefore they may have different melting points.
Manufacturer A Manufacturer B

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The arc test will adjust the arc
power to a level which gives the
ideal sum of melt back distance
(A + B) for a splice.
Best to conduct Arc Test
before you start
A B

ARC Test –Results
SUMITOMO ELECTRIC

Splice Protection Sleeve
Avoid Macrobends . Do not spoil your work

Typical Splice Protection
Sleeve
Heat Shrink outer tube
Heat activated resin tube
Re-enforcement metal pin
Length
Common Lengths
• 60mm
• 40mm
End View

Fibre Positioning in Protection
Sleeve
Correct Positioning

Confidential
Incorrect Settings
40mm Length Splicer Protection Sleeve
Resin Beads can stick to
the heater plate
Incorrect Setting
causes the sleeve to
over heat and
“beading” at the ends
250um
Coating

Confidential
Tube Heater – Cooling Operation
T7XX series Only
40mm Length Splicer Protection Sleeve
The cooling cycle is
important, to allow the
resin to cool, and not
overflow out at the ends,
to prevent “beading”,
and sticking to heater
plate

Splice Protection Sleeve
• Use Correct heater programs
• Avoid the following defects
Trumpet End Steel rod protruding

Arc condition
GOOD Electrodes make Stable Arc Condition and provides
BEST splice results

Worn out Electrodes
BAD worn out Electrodes makes an un-stable Arc
Conditions and provides POOR splice results

Genuine Sumitomo Electrode Identification
Three Angled Planes identify
genuine Sumitomo Electrodes
Design Before 2014 Design After 2014
Sumitomo “Igeta”
Symbol

Fibre MFD Mismatch
Mode Field Diameter mismatch causes exaggerated
loss ad exaggerated gain in OTDR. Please consult
your OTDR manufacturer for training on bi-directional
OTDR analysis . Splicing loss is always calculated on
1310 nm

Tools
P
I
C
T
U
R
E
F
O
C
U
S
Z
O
O
M
D
A
T
A

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Cleaver Operation and Daily
Maintenance

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Cleaver operation – Normal Operation

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Cleaver operation – Dust Contamination

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Cleaver Blade Height – Fibre Scratching

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3D – Mechanism Operation

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Daily Cleaning - Cleaver
Clean 3 Rubber Pads
Clean 2 Rubber Pads
Clean Blade
Clean 2 Fibre Guide
Grooves

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Good Cleave
Bad Cleave Angle
• Dirty rubber pads
• Damaged rubber pads
• Damaged cleaver
Chipped Fibre
• Damaged blade
• Blade position to high
Burr
• Blade position too low
• Blunt or worn blade
Cleaved fibre examples

Bad Cleaves
Clean
the
clamps!
!!
Tungsten Carbide blade makes only a scratch.
Anvil breaks the fibre

Take Care
Splicer is not dust bin

Take Care
Do Not Press The Lid Down !!!

Take Care
Your Safety is important

Support
- 00971508799509 (John)
- 00971504544088 ( Girish)
Service Calibration
3 Years or 10000 splices , whichever comes earlier

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