408-9971 Datasheet, PDF (3/7 Pages) TE Connectivity Ltd – ST Ceramic Ferrule Connector Kits and Coupling Receptacle

408-9971
For coated fiber, slide the bare buffer boot (small
diameter end first), crimp eyelet (rolled end first),
clear tubing, and small diameter tubing onto the
coated fiber.
2. Strip the buffer and/or coating so that 16 to 17 mm
[.630 to .670 in.] of bare glass is exposed. Refer to
the strip template or Figure 2, Detail B.
iNOTE NOTE
For specific techniques on stripping (using the fiber
stripper), see instruction sheet 408-9485.
3. Clean the fiber thoroughly using an alcohol fiber
wipe.
3.3. Preparing the Epoxy
1. Remove the separating clip from the epoxy
package, and mix the epoxy thoroughly for 20 to 30
seconds.
2. Install the needle tip on the epoxy applicator.
Make sure it is secure. Remove the plunger.
3. Cut the epoxy packet open, and squeeze the
epoxy into the back of the applicator. Re-assemble
the plunger. Hold the applicator vertically, and
slowly push on the plunger until the entrapped air
escapes and a bead of epoxy appears at the tip.
iNOTE NOTE
An alternate method in preparing the epoxy is as
follows:
1. Remove the tip of the epoxy applicator by twisting it
one-quarter turn and pulling it away from the body of the
applicator.
2. Install the open end of the epoxy applicator into the
epoxy, and pull back on the plunger to draw epoxy into
the applicator. See Figure 3.
3. Slide the tip onto the applicator, making sure it is
firmly secured. Hold the applicator vertically, and slowly
push on the plunger until a bead of epoxy appears at the
tip.
Package
Epoxy Applicator
(Tip Removed)
Epoxy
Figure 3
3.4. Terminating the Fiber
1. Remove the protective cap from the connector.
Hold the connector with the knurled end up. Insert
the tip of the epoxy applicator as far as possible into
the connector body. See Figure 4, Detail A.
2. Inject the epoxy into the connector until a small
bead with a diameter of approximately 0.76 mm
[.030 in.] appears at the tip of the ferrule. DO NOT
allow the bead get too large or smear.
3. Withdraw the applicator while simultaneously
injecting the epoxy into the bore of the connector
until it is approximately three-quarters full.
4. For jacketed cable, apply a drop of epoxy to the
outside of the knurled end of the connector, and
distribute it evenly around the circumference of the
knurled end. See Figure 4, Detail B. DO NOT allow
any epoxy on the coupling nut or spring area.
5. Using a twisting motion, gently insert the fiber into
the connector until it bottoms. The fiber should
appear at the tip of the ferrule. Refer to Figure 4,
Detail C.
For jacketed cable, make sure that the strength
members are spread out evenly over the knurled
end of the connector. See Figure 4, Detail C.
6. Twist the connector, and move it back and forth
axially approximately 1.5 mm [.060 in.] to distribute
the epoxy in the bore of the connector.
7. For jacketed cable, slide the crimp eyelet toward
the connector until it contacts the connector
shoulder, trapping the strength members against
the knurled end. If using the PVC tubing, slide it
under the crimp eyelet until it bottoms. See Figure 5.
For buffered fiber, slide the clear tubing against the
back of the connector, then slide the crimp eyelet
over the clear tubing and onto the connector. See
Figure 5.
For coated fiber, slide the small diameter tubing and
clear tubing against the back of the connector, then
slide the crimp eyelet over the clear tubing and onto
the connector. See Figure 5.
3.5. Crimping the Connector
CAUTION
! Make sure to crimp the connector before the epoxy
cures.
1. Position the connector in the die assembly as
shown in Figure 6.
iNOTE NOTE
On all multi-fiber cable where the fibers lie in a plane,
position the connector alignment keys in the same
orientation during crimping.
2. Actuate the tool according to the instructions
packaged with the tool.
Rev L
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