SC- and FC-Type Singlemode
and Multimode Simplex and
Duplex Connector Kits
Instruction Sheet
408-8674
29 OCT 08
Rev F
Simplex Connector Kit
Bend Limiting
Boot
Buffer Boot
Heat Shrink Assembly
Housing
Protective
Cover
Connector
Subassembly
Housing
Protective
Cover
Crimp
Eyelets
Boots
Duplex Connector Kit
Housing
Connector
Subassemblies
Protective Cover
Duplex Clip
Figure 1
1. INTRODUCTION
This instruction sheet covers the application of all
SC– and FC–type Singlemode, Multimode, Simplex,
and Duplex Connector Kits. See Figure 1.
These connectors are used in telephone company
central offices, CATV head–ends, inter–building
backbones and customer premise applications. This
instruction sheet covers the termination of the
connector kits (shown in Figure 1) to fiber optic cable.
These connector kits are available for termination to
250–
m
m coated and 900–
m
m buffered fiber, 1.6– to
2.4–mm and 3.0–mm jacketed cable. With the use of
a field–installable clip, all simplex connectors can be
joined into a duplex form.
NOTE
Throughout this instruction sheet, references
made to connectors will include both the SC- and
Read these instructions thoroughly before starting
assembly.
NOTE
Dimensions in this instruction sheet are in
millimeters [with inches in brackets]. Figures are
i
not drawn to scale.
2. DESCRIPTION
(Figure 1)
Each SC–type connector kit consists of a housing, a
protective cover, a connector subassembly, and either
a crimp eyelet and boot or a buffer boot.
Each FC–type connector kit consists of a housing,
protective cover, a connector subassembly, and either
a crimp eyelet and boot or a buffer boot.
Refer to Figure 1 for component descriptions and
related connector kit information.
This controlled document is subject to change.
For latest revision and Regional Customer Service,
visit our website at
i
E
FC-type connectors, unless otherwise specified.
2008 Tyco Electronics Corporation, Harrisburg, PA
TOOLING ASSISTANCE CENTER 1-800-722-1111
PRODUCT INFORMATION 1-800-522-6752
All International Rights Reserved
TE logo and Tyco Electronics are trademarks.
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LOC B
www.tycoelectronics.com
*Trademark. Other products, logos, and company names used are the property of their respective owners.
SC- and FC-Type Singlemode and Multimode Connector Kits
408-8674
3. ASSEMBLY PROCEDURE
3.1. Required Tools and Consumables
NOTE
Refer to manufacturers Material Safety Data
Sheet (MSDS) for characteristics, reactivity data,
i
and handling of the epoxy.
The following tools and consumables are required for
assembling the connector kits (the 408 numbers in
parentheses indicate the related instruction sheet).
NOTE
Kits are provided with a protective cover installed
onto the connector subassembly. Keep the cover
— Epoxy Applicator Kit 501473–3
— Alcohol pads or isopropyl alcohol and
lint–free cloths
— 5–
m
m Polishing Film 228433–8
— 1–
m
m Polishing Film 503887–1
— 0.3–
m
m Polishing Film 228433–5
3.2. Fiber Preparation (Strip and Dip)
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A. Tools
in place until ready for installation.
— Combination Strip Tool 1754708–1 or
1278947–1 (408–4577)
— Aramid Shears 1278637–1
— Cable Preparation Template 1754636–1
— SC Fiber Protector 502656–1
— FC Fiber Protector 502862–1
— Fiber Optic Sapphire Scribe Tool 504064–1
(408–4293)
— LC/ SC/FC 1.6–2.4–mm Jacket Die Set
1588175–1
— SC/FC 3.0–mm Long Eyelet Die
Set 492025–1
— SC/FC 3.0–mm Short Eyelet Die
Set 492131–1
— PRO–CRIMPER* II Hand Tool Frame Assembly
58532–1 (408–4020)
— Heat Cure Oven 502134–1 (120V) or 502134–2
(240V) (408–9460)
— Oven Block Assembly 1457628–1
— Epoxy Mixer 501202–1
— Fiber Optic Inspection Microscope 1754767–1
(adapter included)
— SC Polishing Bushing 502631–1
— FC Polishing Bushing 504862–1
— Polishing Plate 501197–1
— Polishing Pad 501858–1 (Green Pad)
B. Consumables
DANGER
To avoid personal injury, ALWAYS wear eye
protection when working with optical fibers.
NEVER look into the end of terminated or
unterminated fibers. Laser radiation is invisible
but can damage eye tissue. Never eat, drink, or
smoke when working with fibers. This could lead
to ingestion of glass particles.
DANGER
BE VERY CAREFUL to dispose of fiber ends
properly. The fibers create slivers that can easily
puncture the skin and cause irritation.
A. 250-
m
m Coated Fiber and 900-
m
m Buffered Fiber
1. Slide the buffer boot (small diameter end first)
onto the fiber buffer. See Figure 2, Detail A.
2. Using the combination strip tool, strip the coated
or buffered fiber according to the dimensions
shown in Figure 3.
NOTE
This operation will expose the glass cladding.
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3. Clean the glass cladding using the alcohol pad
or lint–free cloth dampened with alcohol to remove
any coating residue.
CAUTION
NEVER clean buffer or fiber with a dry cloth.
— Epoxy, EPO–TEK 353–ND 504035–1, or
anaerobic adhesive and anaerobic primer
(LOCTITE® 648 Anaerobic Adhesive and
LOCTITE® Activator 7649 are recommended,
respectively, replacing the
manufacturer–obsoleted 3405 LOCTITE®
OPTILOC® Anaerobic Adhesive Primer)
EPO–TEK is a trademark of Epoxy Technology Inc.
LOCTITE and OPTILOC are trademarks of Henkel
Corporation
t
t
!
NOTE
For best results, the primer must be applied
properly and allowed to dry.
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Tyco Electronics Corporation
SC- and FC-Type Singlemode and Multimode Connector Kits
Detail A: Preparing Coated/Buffered Fiber
Buffer Boot
408-8674
B. 1.6- to 2.4-mm and 3.0-mm Jacketed Cable
1. Slide the boot (small diameter end first) onto the
cable. Then slide the heat shrink assembly (heat
shrink end first) or crimp eyelet onto the cable.
S
Refer to Figure 2, Detail B for heat–shrink
installation.
S
Refer to Figure 2, Detail C for crimp eyelet
installation
NOTE
If duplex cord is used, unzip the jacket into
separate cords at least 230 mm [9.0 in.] from the
Fiber
Bend Limiting Boot
Detail B: Preparing 1.6-mm
to 2.4-mm Jacketed Cable
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cable end.
Boot
2. Using the combination strip tool and Aramid
shears, strip the cable according to the dimensions
shown in Figure 4.
Heat Shrink
Cable
Detail C: Preparing
3.0-mm Jacketed
Cable
A
Crimp
Eyelet
Cable
Figure 2
4. If terminating with anaerobic adhesive, dip the
fiber and buffer into the primer or apply to the
buffer and fiber with a brush. Allow 30 seconds for
the primer to dry.
NOTE:
Not to scale. Dimensions are in millimeters.
Figure 4
NOTE
This operation will expose the glass cladding.
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A
3. Clean the glass cladding using the alcohol pad
or lint–free cloth dampened with alcohol to remove
any coating residue.
CAUTION
NEVER clean buffer or fiber with a dry cloth.
!
NOTE:
Not to scale. Dimensions are in millimeters.
Figure 3
4. If terminating with anaerobic adhesive, dip the
fiber and buffer into the primer or apply with the
brush, allowing 30 seconds for the primer to dry.
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SC- and FC-Type Singlemode and Multimode Connector Kits
408-8674
NOTE
For best results, the primer must be applied
properly and allowed to dry.
until the entrapped air escapes and a bead of
epoxy appears at the tip. Remove the cap.
4. Clean the tip of the applicator needle using the
alcohol pad or alcohol–dampened lint–free cloth.
D. Application of Adhesive/Epoxy
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3.3. Selection, Preparation, and Application of
Adhesive/Epoxy
A. Selection
NOTE
A 20 gage syringe is recommended for epoxy
application.
S
The recommended anaerobic adhesive is easy
to use and is packaged in two bottles ––
adhesive and primer. It will cure at 22° C
[71.6° F] in approximately three minutes.
S
The recommended epoxy is easy to work with
and is packaged in pre–measured components.
It will cure in approximately 30 minutes at
120° C [248° F].
B. Preparation of Anaerobic Adhesive
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1. Remove the protective cover and attach the
appropriate cure protector, as shown in Figure 5,
for buffer or jumper connector subassemblies.
Cure protectors are not required for use with
anaerobic adhesive.
2. Hold the connector subassembly in an upright
position. Insert the needle tip into the rear body
and support tube until the needle tip touches the
bottom of the ferrule. See Figure 6.
3. Keeping the base of the ferrule against the
needle tip,
slowly
inject adhesive/epoxy into the
connector subassembly until a small bead of
adhesive/epoxy exits from the endface of the
ferrule at the front of the connector.
1. Install the needles on the two applicators,
making sure they are secure.
2. Remove the plunger from one of the applicators
and load adhesive into the back.
3. Replace the plunger.
4. Holding the applicator vertically (needle
upward), allow the adhesive to drain away from the
needle and slowly push the air out of the applicator
until a bead of adhesive appears at the tip of the
needle.
5. Using the second applicator for primer (with the
plunger fully forward), draw a small amount
(approximately three–to–five ml) of primer into the
applicator.
C. Preparation of Epoxy
SC-Type Connector
1. Remove the separating clip from the epoxy bag
and, using the epoxy mixer, mix the epoxy inside
the bag thoroughly for two minutes.
FC-Type Connector
NOTE
When mixed properly, the epoxy should have a
uniform, translucent, amber color.
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2. Using the epoxy applicator kit, install the needle
tip onto the epoxy applicator. Make sure that the tip
is secure. Remove the plunger.
3. Cut the epoxy bag diagonally at one corner.
Squeeze the epoxy into the back of the applicator.
Reassemble the plunger. Loosen, but do not
remove, the cap. Hold the applicator vertically
(needle tip upward), and slowly push the plunger
Figure 5
4. Retract the applicator slightly (approximately
1.0 mm [.04 in.]). Hold for one second, then
withdraw the applicator needle quickly without
injecting more adhesive/epoxy into the connector
subassembly.
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SC- and FC-Type Singlemode and Multimode Connector Kits
Endface
of Ferrule
Applying Adhesive/Epoxy
408-8674
B. 1.6- to 2.4-mm Jacketed Cable
1. While holding the connector between the thumb
and forefinger (with the ferrule facing away), look
into the back, where the fiber is to be placed.
2. Carefully insert the fiber into the rear body and
support tube (which is recessed inside the
connector subassembly) until the buffer bottoms on
the base of the ferrule. With the buffer bottomed,
the cable jacket should be just short of the rear
body. The fiber should extend approximately
6.4 mm [.25 in.] from the ferrule endface.
CAUTION
DO NOT allow the cable strength members to
enter the connector.
Front of
Connector
Ferrule
Support
Tube
!
Applicator
Needle
Rear Body
of Connector
3. Uniformly distribute the cable strength members
around the rear body of the connector. See
Figure 7, Detail A.
4. Slide the heat shrink assembly forward over the
cable strength members until the crimp eyelet
bottoms against the connector. See
Figure 7, Detail B.
5. Place the crimp eyelet of the heat shrink
assembly into the crimping chamber of the die
assembly. Align the back of the connector with the
edge of the die as shown in Figure 8.
6. Hold the connector subassembly in place and
actuate the tool handle. This operation retains the
strength members.
7. Remove the assembly from the hand tool and
inspect it for a straight and even crimp. Be sure the
crimp is centered on the crimp eyelet.
8. For parts terminated with anaerobic adhesive,
dispense a drop of primer from the applicator onto
the tip of the ferrule over the adhesive bead and
set the parts aside to allow the adhesive to finish
curing (approximately one to three minutes) Heat
the shrink tubing evenly and shrink it into place.
CAUTION
Overheating can cause fiber bending, breakage,
and high insertion loss.
Figure 6
CAUTION
If too much epoxy is injected into the connector
subassembly, the connector subassembly will not
!
function properly.
3.4. Termination of the Fiber
A. 250-
m
m Coated Fiber and 900-
m
m Buffered Fiber
1. While holding the connector between the thumb
and forefinger (with the ferrule facing away), look
into the back, where the fiber is to be placed.
2. Carefully insert the fiber into the support tube
(which is recessed inside the connector
subassembly) and rear body until the buffer
bottoms on the base of the ferrule. The fiber
should extend approximately 6.4 mm [.25 in.] from
the ferrule endface.
3. For parts terminated with anaerobic adhesive,
dispense a drop of primer from the applicator onto
the tip of the ferrule over the adhesive bead, and
set the part aside to allow the adhesive to finish
curing (approximately one to three minutes).
Proceed to Paragraph 3.6.
NOTE
For best results, the adhesive must be applied
correctly and allowed to dry.
!
NOTE
For best results, the adhesive must be applied
correctly and allowed to dry.
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9. Proceed to Paragraph 3.6.
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