NEWLINK FO Termination

Cabling Systems

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Copyrights 2003

h2

Cabling Systems

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OPTICAL FIBER TERMINATION

NEWLINK TECHNICAL SUPPORT GROUPCabling Systems

NEWLINK LOOSE-TUBE FIBER OPTICS ENTRANCEM.S. / JCLR 0204.ppt 2004

TSB-420TSB-420V1.0

Loose-Tube FO Cable

FO Terminations Wallmount Box

OUTDOORS

• AERIAL: ADSS, Fig-8

• DIRECT BURIAL: armored cables

Loose-Tube FO cables are not intended for Indoor/Riser installations

INDOORS

Demarcation Point

Fiber Optics Patch Panel / Box

Tight-Buffer FO Cable

NEWLINK TECHNICAL SUPPORT GROUPCabling Systems

NEWLINK LOOSE TUBE TERMINATION PRACTICE M.S. / JCLR 0204.ppt 2004

TSB-211TSB-2111/1

Loose-Tube FO Cable

NEWLINK #94xxxxx

Rackmountable Fiber Box

NEWLINK #2670010

SC-SC Couplers Strip

NEWLINK #2880047

SC Fiber Optic Connectors

NEWLINK #321175M

Buffering Kit

NEWLINK #1012506

NEWLINK TECHNICAL SUPPORT GROUPCabling Systems

NEWLINK OPTICAL FIBER COLOR SCHEME – TIA/EIA 606A M.S. / JCLR 0204.ppt 2004

TSB-603TSB-603V1.0

1 Blue

2 Orange

3 Green

4 Brown

5 Slate

6 White

7 Red

8 Black

9 Yellow

10 Purple

11 Rose

12 Aqua

Same scheme is used for the external tubing in the loose-

tube cables.

Tube Fiber

1 - Blue 12 - Cyan

3 - Green 7 - Red

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NEWLINKTERMINATION PRACTICE

Order / Space Time/ Patience Right Tools Working with

Chemicals Waste, particles

FIRST OF ALL : THINK SAFELY !

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FO Termination Check List

Prepare the Work Area Prepare Cable according to type of Connector Prepare Fiber Terminate the Epoxy connection Mechanical Crimp Cut Fiber Polish Fiber Verify finished work

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stress relief boot3mm dia.

mechanicalcrimp

ST connector ProtectionCap

ST Connector Parts

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SC Connector Parts

stress relief boot

3mm dia.mechanical

crimpferrule SC

cartridge cover cap

socket spring

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Cable Preparation

32mm

16mm

9mm

for SC connectors

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Cable Preparation

38mm

20mm

10mm

for ST connectors

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Cable Preparation

Put the protective boot and crimping piece accordingly to cable diameter.

DO NOT crimp at this time.

Remove the amount of jacket required for that connector.

Cut the protective Aramid fiber if exists following the recommended lenghts.

Use special scissors to cut the Aramid / Kevlar

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Prepare Optical Fibber

Remove required jacket’s section using the 205 um grade precision stripper.

Proceed slowly to avoid fiber damage and breaks.

When some practice is obtained it is possible to remove the acrylate and PVC buffer in the same operation.

Remove PVC buffer in small 8mm segments to

avoid fiber breaks.

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Prepare Optical Fiber

If the acrylate remains over the fiber, remove it using the special stripper.

Avoid torsional or flexion over the fiber, stripping movement must be slow and uniform.

Strip it in small segments of 8mm

If Fiber is broked you must begin again…

Cabling Systems

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Epoxy Application

Prepare epoxy in small quantities. Once hard it must be discarded.

Press slowly to introduce the glue inside the connector.

Verify that glue appears at ferrule’s tip to assure all the fiber channel is full of epoxy.

Introduce the prepared fiber into the ferrule, rotate it slowly for proper epoxy distribution around the fiber.

Yes, this is the time to align the connectors properly. Mainly if you are building a patch cord.

Epoxy glue

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Assembling

Be sure that Fiber Optics exceeds about 10mm

Proceed to crimp the metallic piece over the connector.

1st Press – 0,190”

2nd Press – 0,128”

Continue crimping over the cable

Finally insert the protective boot over the crimped end.

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Scribbing

Fiber

Connector Ferrule

½ mm

Hardened Scribe

1

DISCARD FIBER WASTE

PROPERLY !!

3

Remove using the pliers

2

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By Hand Polishment

Use coarser polishing film with grade 3um or 5 um

Make circles softly without to much pressure or speed.

Hold the polishing film in the air using your hand. Avoid support it on a hard surface until all remaning epoxy has been removed.

This procedure safely eliminates the protuberances from the optical fiber and remaining

epoxy.

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Finishing

1. Inserts the connector in the correspondent polish disk.

2. Put a new polish film with a grade between 3um and 5 um over the polishing surface.

3. Press slightly making an eight-shape figure. Repeat around 5 to 10 times.

4. Clean tip with alcohol lint-free towels and dry the ferrule using canned air.

5. Check the finishing each 3 cycles using the microscope.

6. Use the small-grade polish film (1 to 0,3um) moistened with water to proceed with the finishing.

7. Look for a semi-gloss homogeneous face.

DO NOT OVER POLISH

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Comparing Results

OPTIMAL RESULTS

1. Semi-Gloss surface without scratches.

2. Neat dark core surrounded by a well defined epoxy ring.

3. Avoid over-polishing because it raises the Reflection Losses.

IdealBroken Core

Scratches on Core

Over Polished

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OK Alcohol Drying

Dirty Core

Finger traces

Too dirty Scratched Connector

Examples