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3M 78-8135-4385-3-A manual

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Table of contents for the manual

  • Page 1

    Mar ch 2005 78-8135-4385-3-A 3 LC Hot Melt Fiber Optic Connectors Installation[...]

  • Page 2

    2 78-8135-4385-3-A Contents 1.0 Safety and Helpful Hints ................................................................................................................3 Hot Melt Oven Safety Information ................................................................................................3 2.0 3M ™ LC Expansion 6650-LC Kit Contents ...[...]

  • Page 3

    78-8135-4385-3-A 3 1.0 Safety and Helpful Hints Use reagent-grade isopropyl alcohol that is 99% pure to clean the fibers and other components. When terminating connectors on any cable containing grease, ensure that all grease is wiped a way and the buf fer , coating and fiber are thoroughly cleaned with isopropyl alcohol. Isopropyl alcohol is not[...]

  • Page 4

    4 78-8135-4385-3-A 2.0 3M ™ LC Expansion 6650-LC Kit Contents A A A A C B D E F H I B 1 G A. LC Hot Melt Connector Holder (4) B. LC Polishing Jig Assembly with W eight B 1 Spare Polishing Jig C. LC Crimp T ool D. LC Adapter for V iew Scope E. Heat Shrink Fixture F . Cleaning Pins (3) G. Laminated Strip T emplate H. Polishing Pads 4.5" × 5.5[...]

  • Page 5

    78-8135-4385-3-A 5 3.0 3M ™ LC Connectors 3.1 The Behind The W all (BTW) LC is used for simplex 900 micron applications. The connector contains (A) dust cap, (B) connector , and (C) strain relief boot. Note: The BTW LC multimode connector has a beige extender cap at the rear of the connector . The singlemode connector has a blue extender cap at t[...]

  • Page 6

    6 78-8135-4385-3-A 3.3 The 3.0 mm LC connector contains (A) dust cap, (B) connector , (C) metal strength sheath, (D) metal crimp slee ve, (E) strain relief boot. Note: Multimode simplex yok es are beige and singlemode yok es are blue. A B C D E 4.0 Setup 4.1 Plug in the 120V or 230V po wer cord. T urn on the 3M ™ Hot Melt Oven. The oven requires [...]

  • Page 7

    78-8135-4385-3-A 7 4.4 Insert the connector into the hot melt connector holder . 4.5 Place the load adapter , with slot aligned with handle, into an av ailable port in the ov en. IMPORT ANT: Do not place connector in a hot load adapter . This ma y cause adhesive to flow to the outside of the ferrule. Load adapter should be at room temperature when[...]

  • Page 8

    8 78-8135-4385-3-A 5.0 900 micr on Cable Connector Pr eparation 5.1 Place strain relief boot on cable as sho wn. 6.0 1.6 – 2.0 mm Jack eted Cable Connector Pr eparation 6.1 Place the strain relief boot first and then the heat shrink crimp slee ve on the cable as shown. 7.0 3.0 mm Jack eted Cable Connector Pr eparation 7.1 Place the strain relief[...]

  • Page 9

    78-8135-4385-3-A 9 8.0 Strip Guide     9.0 Stripping Pr ocedure f or 900 micr on Fiber 9.1 Place the cable on the strip template. Mark buf fer at 11 mm. Using the 3M ™ Stripping T ool 6365-ST , remov e the buf fer in small increments [...]

  • Page 10

    10 78-8135-4385-3-A 10.2 Snip the aramid yarn to 5-6 mm (approx. 3/16"). 10.3 Flare aramid yarn e venly around buf fer . 10.4 Using the 3M ™ Stripping T ool 6365-ST , remov e the buf fer in small increments until 21–22 mm (approx. 7/8") of buf fer is left. 10.5 Using a lint-free cloth moistened with isopropyl alcohol, clean the bare ?[...]

  • Page 11

    78-8135-4385-3-A 11 11.0 Stripping Pr ocedure f or 3 mm Jack eted Fiber 11.1 Place the jacketed fiber on the strip template and use a fiber marking pen to mark the location of the jacket cut. Using the 3M ™ Stripping T ool 6365-ST , remov e 33 mm (1 1/3") of jacket of f cable. 11.2 Holding the aramid yarn firmly aw ay from the buf fer tub[...]

  • Page 12

    12 78-8135-4385-3-A 11.5 Using the 3M ™ Stripping T ool 6365-ST , remov e the buf fer in small increments until 21–22 mm (approx. 7/8") of buf fer is left. 11.6 Using a lint-free cloth moistened with isopropyl alcohol, clean the bare fiber to remov e any oils or acrylate coating debris. 11.7 Check the final strip lengths and adjust if ne[...]

  • Page 13

    78-8135-4385-3-A 13 12.2 Maintaining fiber position in connector , push the jacketed fiber into the cable v-slot feature on the load adapter until secure. 12.3 Attempt to line up the holder arm to keep cable as straight as possible. 12.4 Remov e the load adapter from the oven by grasping the cool-touch handle.  CAUTION Do not touch the metal p[...]

  • Page 14

    14 78-8135-4385-3-A 13.0 Boot Placement f or 900 micron Fiber 13.1 Remov e connector from the load adapter and slide the boot ov er connector until fully seated. IMPORT ANT: Remove connector gently so that you don’t break the fiber . If connector sticks to the sides of the load adapter when tr ying to remove , re-heat the connector slightly unti[...]

  • Page 15

    78-8135-4385-3-A 15 14.3 Using the die labeled “ A” with the 3M lettering facing to the left, crimp the metal portion of the slee ve once. Note: Crimp sleeve must be bottomed against connector prior to crimping. The 3M lettered side of the crimp die should be touching the rear of the connector . 14.4 Place the crimp/shrink tube in the shrink ?[...]

  • Page 16

    16 78-8135-4385-3-A 15.0 Crimping and Boot Placement f or 3 mm Jack eted Fiber 15.1 Remov e connector from load adapter 15.2 Slide metal crimp slee ve down and o ver aramid yarn. It should rest ov er the metal strength sheath as shown. 15.3 Using the LC die labeled “ A” with the 3M lettering facing left, crimp the left half of the the crimp rin[...]

  • Page 17

    78-8135-4385-3-A 17 15.5 Slide boot ov er crimp until boot is flush against the connector . Note: J ack eted boots appear the same in the photos but the boots for all 3 types of connectors are dif ferent sizes and cannot be interchanged. 16.0 Scribing 16.1 Position the scribe blade so the flat side of the blade is resting on the bead of adhesi ve[...]

  • Page 18

    18 78-8135-4385-3-A 17.0 Multimode P olish 17.1 Perform an air polish by holding the 9 micron lapping film firmly in one hand and gently moving the film in a circular motion for approximately 10 strokes or until approximately one half of the bead height is remov ed. Note: Y ou can polish approximately 20 connectors with each piece of 9 micron la[...]

  • Page 19

    78-8135-4385-3-A 19 17.7 Clean the flat side of the polishing jig with a lint-free cloth moistened with isopropyl alcohol. 17.8 Place the polishing jig assembly on the lapping film. 17.9 Place the ferrule in the polishing jig aligning the latch side of the connector with the slot until it stops. Note: The ferrule must be able to slide freely insi[...]

  • Page 20

    20 78-8135-4385-3-A 17.11 Polish 10 figure-eight strokes or until bead of adhesi ve is no longer visible. Note: Do not hold polishing jig assembly by the weight when polishing. Hold only by the textured polishing adapter . Note: Because bead is 3 to 4 times smaller than classic hot melt connectors you will not feel the bead of adhesiv e being remo[...]

  • Page 21

    78-8135-4385-3-A 21 17.15 Good Polish (Coaxial light) 17.16 Good Polish (Oblique light) 17.17 Bad Polish – Cut or scratch going through center of core. In this picture half of fiber is missing. 18.0 Singlemode P olish to –40db 18.1 Complete steps17.0 through 17.13 of the multimode polish before proceeding further with the singlemode polish. No[...]

  • Page 22

    22 78-8135-4385-3-A 18.3 Place se veral drops of alcohol on to the rectangular rubber pad. 18.4 Before the alcohol e vaporates, place a sheet of the 0.5 micron pale gray diamond lapping film on the polishing pad, shiny side do wn. 18.5 Clean the lapping film with a lint-free cloth moistened with isopropyl alcohol. Note: The 0.5 micron diamond lap[...]

  • Page 23

    78-8135-4385-3-A 23 19.0 Singlemode P olish to –55db Note: Complete steps 17.0 through 17.13 of the multimode polish and 18.0 through 18.11 of the singlemode polish before proceeding further . 19.1 Place se veral drops of alcohol on to the second gray rectangular rubber pad. 19.2 Before the alcohol e vaporates, place a sheet of the white frosted [...]

  • Page 24

    24 78-8135-4385-3-A 19.8 Leaving polishing jig assembly positioned on the lapping film rotate 180 degrees. Perform 4 additional figure eights. 19.9 Once polishing is complete , refer to steps 17.14 through 17.17 on inspecting the connector with the 200X fiber vie w scope before proceeding to final step. 20.0 Finishing 20.1 If connector is not t[...]

  • Page 25

    78-8135-4385-3-A 25 21.3 T aper on the boot will cause the yoke to spread allo wing the correct placement at the rear of the connector . 21.4 Pinch the top and bottom of the yoke closed and press together the outer edges of the yoke, snapping firmly into connector . 21.5 A design improv ement includes a liv e hinge on the bottom of the duplex yok [...]

  • Page 26

    26 78-8135-4385-3-A 22.0 3M ™ Expansion Kit 6650-LC and Replacement Part Numbers 6650-LC LC Expansion Kit (complete) ............................................................................80-6113-1353-9 6650-LH LC Hot Melt Connector Holder (4 ea.) .............................................................. 80-6113-1348-9 6650-JW LC Polish[...]

  • Page 27

    78-8135-4385-3-A 27[...]

  • Page 28

    Important Notice All statements, technical information, and recommendations related to 3M’ s products are based on information believ ed to be reliable , but the accuracy or completeness is not guaranteed. Before using this product, you must ev aluate it and deter mine if it is suitable for your intended application. Y ou assume all risks and lia[...]