504646-7 - Tyco Electronics

Instruction Sheet

SC- and FC-Type Singlemode

and Multimode Simplex and 408-8674

LOC B

of 12

2008 Tyco Electronics Corporation, Harrisburg, PA

All International Rights Reserved

TE logo and Tyco Electronics are trademarks.

*Trademark. Other products, logos, and company names used are the property of their respective owners.

TOOLING ASSISTANCE CENTER 1-800-722-1111

PRODUCT INFORMATION 1-800-522-6752 This controlled document is subject to change.

For latest revision and Regional Customer Service,

visit our website at

www.tycoelectronics.com

29 OCT 08 Rev F

Duplex Connector Kits

Figure 1

Protective

Cover

Duplex Clip

Buffer Boot

Crimp

Eyelets

Connector

Subassemblies

Heat Shrink Assembly

Bend Limiting

Boot

Boots

Connector

Subassembly

Housing

Protective

Cover

Protective Cover

Housing

Simplex Connector Kit

Duplex Connector Kit

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 coated and 900–

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.

Throughout this instruction sheet, references

made to connectors will include both the SC- and

FC-type connectors, unless otherwise specified.

Read these instructions thoroughly before starting

assembly.

Dimensions in this instruction sheet are in

millimeters [with inches in brackets]. Figures are

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.

NOTE

408-8674

SC- and FC-Type Singlemode and Multimode Connector Kits

Rev

of 12 Tyco Electronics Corporation

3. ASSEMBLY PROCEDURE

3.1. Required Tools and Consumables

The following tools and consumables are required for

assembling the connector kits (the 408 numbers in

parentheses indicate the related instruction sheet).

Kits are provided with a protective cover installed

onto the connector subassembly. Keep the cover

in place until ready for installation.

A. Tools

— 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

— 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

Refer to manufacturers Material Safety Data

Sheet (MSDS) for characteristics, reactivity data,

and handling of the epoxy.

— Epoxy Applicator Kit 501473–3

— Alcohol pads or isopropyl alcohol and

lint–free cloths

—5–

m Polishing Film 228433–8

—1–

m Polishing Film 503887–1

— 0.3–

m Polishing Film 228433–5

3.2. Fiber Preparation (Strip and Dip)

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.

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 Coated Fiber and 900-

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.

This operation will expose the glass cladding.

3. Clean the glass cladding using the alcohol pad

or lint–free cloth dampened with alcohol to remove

any coating residue.

NEVER clean buffer or fiber with a dry cloth.

For best results, the primer must be applied

properly and allowed to dry.

NOTE

DANGER

NOTE

CAUTION

NOTE

408-8674

SC- and FC-Type Singlemode and Multimode Connector Kits

of 12Rev

Tyco Electronics Corporation

Figure 2

Detail A: Preparing Coated/Buffered Fiber

Detail B: Preparing 1.6-mm

to 2.4-mm Jacketed Cable

Buffer Boot

Fiber

Cable

Bend Limiting Boot

Heat Shrink

Boot

Cable

Crimp

Eyelet

Detail C: Preparing

3.0-mm Jacketed

Cable

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.

Figure 3

NOTE:

Not to scale. Dimensions are in millimeters.

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.

Refer to Figure 2, Detail B for heat–shrink

installation.

Refer to Figure 2, Detail C for crimp eyelet

installation

If duplex cord is used, unzip the jacket into

separate cords at least 230 mm [9.0 in.] from the

cable end.

2. Using the combination strip tool and Aramid

shears, strip the cable according to the dimensions

shown in Figure 4.

Figure 4

NOTE:

Not to scale. Dimensions are in millimeters.

This operation will expose the glass cladding.

3. Clean the glass cladding using the alcohol pad

or lint–free cloth dampened with alcohol to remove

any coating residue.

NEVER clean buffer or fiber with a dry cloth.

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.

NOTE

CAUTION

408-8674

SC- and FC-Type Singlemode and Multimode Connector Kits

Rev

of 12 Tyco Electronics Corporation

For best results, the primer must be applied

properly and allowed to dry.

3.3. Selection, Preparation, and Application of

Adhesive/Epoxy

A. Selection

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.

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

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

1. Remove the separating clip from the epoxy bag

and, using the epoxy mixer, mix the epoxy inside

the bag thoroughly for two minutes.

When mixed properly, the epoxy should have a

uniform, translucent, amber color.

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

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

A 20 gage syringe is recommended for epoxy

application.

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.

Figure 5

FC-Type Connector

SC-Type Connector

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.

NOTE

408-8674

SC- and FC-Type Singlemode and Multimode Connector Kits

of 12Rev

Tyco Electronics Corporation

Figure 6

Applying Adhesive/Epoxy

Endface

of Ferrule

Applicator

Needle

Ferrule

Support

Tube

Rear Body

of Connector

Front of

Connector

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 Coated Fiber and 900-

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.

For best results, the adhesive must be applied

correctly and allowed to dry.

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.

DO NOT allow the cable strength members to

enter the 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.

Overheating can cause fiber bending, breakage,

and high insertion loss.

For best results, the adhesive must be applied

correctly and allowed to dry.

9. Proceed to Paragraph 3.6.

CAUTION

NOTE

CAUTION

NOTE

408-8674

SC- and FC-Type Singlemode and Multimode Connector Kits

Rev

of 12 Tyco Electronics Corporation

Figure 7

Detail A

Detail B

Heat Shrink Assembly

Cable Strength

Members Uniformly Distributed

Crimp Eyelet

Detail C

Figure 8

Crimping Heat Shrink Assembly

Crimp Eyelet in

Crimping Chamber

Heat Shrink

Assembly

Back of Connector

Aligned with

Edge of Die

C. 3.0-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.

Do NOT allow the strength members to enter the

connector.

3. Uniformly distribute the cable strength members

around the rear body of the connector.

See Figure 7, Detail A.

4. Slide the crimp eyelet forward over the cable

strength members until it bottoms against the

connector. See Figure 7, Detail C.

Be SURE to use the proper crimp die-set with

the appropriate eyelet. See Figure 9.

5. Place the crimp eyelet into the appropriate

crimping chamber of the die assembly. Align the

edge of the large diameter end of the crimp eyelet

with the edge of the die, as shown in Figure 10.

6. Hold the connector in place and actuate the tool

handle. This operation retains the strength

members.

Figure 9

Long Eyelet

Short Eyelet

Use Die-Set

492026-1 Use Die-Set

492131-1

7. For parts terminated with anaerobic adhesive,

dispense a drop of primer from the applicator onto

the tip of the ferrule over the adhesive bead.

CAUTION

NOTE

408-8674

SC- and FC-Type Singlemode and Multimode Connector Kits

of 12Rev

Tyco Electronics Corporation

Figure 10

Hand Tool Frame with Die Assembly

Large Diameter

End of Crimp

Eyelet Aligned

with Edge of Die

NOTE:

SC-type connector shown. Crimp procedure is the

same for FC-type connectors.

8. Set the parts aside to allow the adhesive to

finish curing (approximately one to three minutes).

Proceed to Paragraph 3.6.

For best results, the adhesive must be applied

correctly and allowed to dry.

3.5. Curing Epoxy Terminated Parts

BEFORE CURING, make sure all excess epoxy

is removed from the connector subassembly; it

will be difficult to remove epoxy after curing.

1. Insert the connector subassembly (with attached

cure protector) into the cure oven as shown in

Figure 11. Heat cure the epoxy at 115

to 120

[239

to 257

F] for a minimum of 15 minutes. For

jumper connector kits, this operation will shrink the

heat shrink assembly.

To avoid damage to the assembly, DO NOT

expose assembly to excessive temperatures.

2. After curing, use the cable to gently lift the

assembly out of the oven.

Upon removal from the cure oven, the assembly

will be HOT. Allow sufficient time for cooling.

Figure 11

Cable Holder

Oven Block Assembly

NOTE:

Simplex Jumper

Connector Kit shown.

Heat Cure

Oven

Figure 12

Tool Tip

Connector Tip

Epoxy/Adhesive

Bead

Excess Fiber

Pull

After

Cleave

Cleave Tool

3.6. Cleaving the Fiber

ALWAYS wear safety glasses when cleaving

optical fibers. CAREFULLY DISPOSE OF FIBER

ENDS. The fibers create slivers that can easily

puncture the skin and cause irritation.

1. If using a fiber protector, rotate it to remove it,

then hold the connector subassembly firmly in one

hand.

2. Place the sapphire cutting tip just above the

epoxy/adhesive, as shown in Figure 12.

NOTE

CAUTION

DANGER

408-8674

SC- and FC-Type Singlemode and Multimode Connector Kits

Rev

of 12 Tyco Electronics Corporation

Do NOT allow the sapphire cutting tip to make

contact with the epoxy or adhesive, as they may

damage, chip, or crack the sapphire cutting tip.

3. Gently score the fiber by drawing the beveled

edge of the sapphire blade across the fiber.

4. After lightly scoring the fiber, pull the fiber

straight away from the connector to finish the

cleave process. The fiber should shear cleanly at

the scribe point.

3.7. Assembly of the Connector

1. Slide the boot forward until it touches the rear of

the connector body.

Avoid twisting the boot while sliding it over the

crimp eyelet. Permanent damage could result.

See Figure 13. (The FC type connector is

complete. Proceed to Section 4, POLISHING

PROCEDURES.)

2. For SC–type connectors, slide the connector

housing over the connector assembly until it clips

into place. The chamfer must be aligned as shown

in Figure 14, Detail A. For duplex SC–type

connectors, identify the channel “A” connector.

If the polarity is undetermined, light up one fiber

path. One of the two connectors should be

illuminated. Designate the lit channel as

Channel A" and the other as Channel B."

3. Install the duplex housings accordingly. Be sure

to orient the resilient beam and retention plate

housings as shown in Figure 14, Detail B.

Do NOT join the two halves together at this time.

For buffer fiber applications, the SC-type duplex

insertion tool must be used to assemble the

connector housing and the connector

subassembly.

4. POLISHING PROCEDURES

4.1. Hand Polishing

For best results, the polishing films MUST be

kept clean.

1. To level the fiber, lightly polish the end face with

hand–held 5–

m polishing film (air polish). Use a

small circular motion to remove the fiber stub down

to the level of the epoxy/adhesive and until the

fiber stops leaving a trace on the film.

2. Install the connector into polishing bushing. See

Figure 15.

3. Place the polishing pad on the polishing plate.

The remainder of the polishing procedure is

performed on this pad and plate.

Figure 13

1.6- to 2.4-mm Jumper

Connector Kit

(Simplex Shown)

Buffer Boot

Against Rear Body

Buffer Connector Kit

(Simplex Shown)

Boot Against

Rear Body

Bend-Limiting Boot

Against Rear Body

3.0-mm Jumper Connector Kit

(Simplex Shown)

CAUTION

NOTE

408-8674

SC- and FC-Type Singlemode and Multimode Connector Kits

of 12Rev

Tyco Electronics Corporation

Figure 14

Key

Chamfer

Retention Plate

Housing

Resilient Beam

Housing

Connector

Subassembly

Connector

Housing

Plug Body

Chamfer Must

be Aligned

Detail A

Detail B

Figure 15

Polishing

Bushing

4. Place the 5–

m polishing film on the polishing

pad.

Always place the polishing bushing on a clean

area of the polishing film. Never start polishing on

or across a dirty section of the film.

5. Holding the polishing bushing and connector,

start polishing very lightly. Polish in an elongated

figure–8 pattern. See Figure 16. Initially, a small

amount of exposed fiber will be worn away. This is

indicated by a narrow white trace on the film. As

the exposed fiber wears away, the trace will widen

and darken, indicating that adhesive/epoxy is being

removed. At this point, a slight downward force

may be applied while polishing. Check the tip often

and stop polishing on the 5–

m film when the

adhesive/epoxy is medium red–pink and about

one–third the ceramic ferrule diameter in size.

When polishing ceramic ferrule connectors, it is

essential that not all of the adhesive/epoxy is

removed when using the 5-

m film.

6. Clean the polishing bushing and connector

assembly with an alcohol pad.

Figure 16

Figure-8

Pattern

7. Remove the 5–

m film from the polishing pad

and replace it with the 1–

m film.

8. Holding the connector and polishing bushing,

polish on the 1–

m film for about 20 seconds.

9. Clean the polishing bushing and connector

assembly with an alcohol pad.

10. Remove the 1–

m film from the polishing pad

and replace it with the 0.3–

m film.

11. Hold the connector and polishing bushing.

Using light force, polish on the 0.3–

m film until the

adhesive/epoxy is gone. Do not overpolish.

12. Clean the polishing bushing and connector

assembly with an alcohol pad.

4.2. Machine Polishing

Refer to the polishing machine manufacturer for

recommended polishing process.

CAUTION

408-8674

SC- and FC-Type Singlemode and Multimode Connector Kits

Rev

F10

of 12 Tyco Electronics Corporation

5. INSPECTING THE FIBER

Using the microscope, inspect the fiber for the

following criteria (refer to Figure 17):

Disconnect cable from any power signal source

before inspecting. The light used can cause injury

to the eye.

Be sure all epoxy/adhesive is removed from

the ferrule. Use a sharp blade to remove

epoxy/adhesive from the chamfered edge of

the ferrule. DO NOT touch the fiber.

Dirt may be mistaken for small pits. If dirt is

evident, clean with an alcohol pad or

alcohol–dampened lint–free cloth, and then dry.

Fine polishing lines are acceptable.

Small chips at the outer rim of the fiber are

acceptable. Large chips in the center of the

fiber render the polish unacceptable, and the

fiber must be re–terminated.

If not installing the connector immediately, place

the protective cover over the ferrule.

Damaged components must not be used. They

must be replaced with new components.

Figure 17

Acceptable

Unacceptable

Ferrule Endface Fiber

Fine Polishing Lines

Small Peripheral

Chips Permissible

Scratches

Large Pits

6. DUPLEX CONNECTOR ASSEMBLY

6.1. Duplex Housings

Once joined, the resilient beam and retention

plate housings are NOT separable.

1. The retention plate housing will retain the

resilient beam housing when the two are joined.

Figure 18

Join the two housings by holding the resilient beam

housing and sliding the retention plate housing

over the beams until they latch in place. See

Figure 18.

2. Figure 19 shows a completely assembled

multimode duplex connector.

Figure 19

6.2. Duplex Clip (For Use with Simplex Connector

Housing Only)

1. Place the simplex connector housings in one

half of the duplex clip. See Figure 20.

2. Place the other half of the duplex clip over the

housings and snap the two clips together. See

Figure 20.

DANGER

NOTE

CAUTION

NOTE

408-8674

SC- and FC-Type Singlemode and Multimode Connector Kits

of 12Rev

Tyco Electronics Corporation

Figure 20

7. CLEANING PROCEDURES

To avoid personal injury, compressed air used for

cleaning must be reduced to less than 207 kPa

[30 psi], and effective chip guarding and personal

protective equipment (including eye protection)

must be used.

7.1. Connector

1. Wipe completely around the ferrule with an

alcohol pad or lint–free cloth dampened with

isopropyl alcohol.

2. Wipe completely around the ferrule using a dry

lint–free cloth.

3. Place the dry lint–free cloth on a smooth, flat

surface. Holding the connector perpendicular, wipe

the ferrule endface across the cloth.

4. Blow compressed air across the endface of the

ferrule.

5. Examine the endface for debris, using the

microscope. If debris is present, repeat Steps 1

through 4.

This is the final step prior to connector insertion.

DO NOT wipe the ferrule or allow it to touch

anything before mating the connector.

6. Mate the connector to the receptacle.

7. If the attenuation is too high, unmate both

connectors (if applicable), repeat Steps 1 through

5, and follow procedures in Paragraph 7.2,

Receptacle.

7.2. Receptacle

1. Blow compressed air through the receptacle.

If both connectors are not removed, blow

compressed air into the open end of the

receptacle.

2. Re–mate the connector(s) to the receptacle

following the procedures in Paragraph 7.1.

Steps 7.1 and 7.2 may have to be repeated if the

connector loss is still too high.

8. RECOMMENDED TUNING PROCEDURES

Tuning Tool 1693383–1 is used to rotate the ferrule

into the position of lowest loss. The tool has

numbered flats, spaced every 60 degrees that are

used to identify the position of the ferrule. The end of

the tool has a machined key that will engage into the

ferrule in only one position. The corresponding

number that matches up with the key on the

connector identifies the the current tuning position.

8.1. Setup

Before testing a connector, insert the tuning tool into

the front of the connector, to obtain the “initial tuning

position.” Note this position.

Inspect the ferrule for dirt and debris.

NEVER look into the end of terminated or

unterminated optical fibers. Laser radiation is

invisible, but can damage the eye.

Damage will occur to the ferrule if the tool is

rotated without the tool being bottomed all the

way toward the connector.

Damage may occur to the cable assembly if the

ferrule is rotated more than 180 degrees (three

tuning positions) in either the clockwise or the

counterclockwise direction.

8.2. Tuning Operation

1. Mate the offset end of the tuned launch lead to

the connector to be tuned using a ceramic sleeve

adapter.

2. Record the power level of the detector.

3. Unmate the connector and insert the tuning tool

to the previously noted (initial tuning) position.

4. Press the tuning tool axially toward the

connector until it bottoms and rotate it clockwise

one numerical position, or 60 degrees.

DANGER

CAUTION

NOTE

DANGER

CAUTION

408-8674

SC- and FC-Type Singlemode and Multimode Connector Kits

Rev

F12

of 12 Tyco Electronics Corporation

5. Release the tool and remove it.

6. Repeat steps one through five, for a total of

three tuning positions.

7. After the third tuning measurement is taken,

tune the connector counterclockwise five positions.

8. Repeat steps one through five for the other

three tuning positions.

9. Tune the connector as described in steps two

through five to the position of greatest power

(lowest loss), going in the direction of least

rotation.

Be sure not to exceed 180 degrees of rotation

from the original position.

9. REVISION SUMMARY

Revisions to instruction sheet 408–8674 include:

Updated document to corporate requirements

New format

NOTE