Instructions
SC & FC/PC3 Pull-Proof
Fiber Optic Connectors
Termination Procedures for
Single-mode and Multimode
Field-Mountable Connectors
using Epoxy
Issue 1, May 1993
Contents:
A)
B)
C)
D)
E)
F)
G)
H)
I)
J)
Warnings, Recommendations and Overview ................................................................................................ 3
Jacketed Cable Preparation .......................................................................................................................... 5
Mounting ........................................................................................................................................................ 8
Scoring .......................................................................................................................................................... 12
Standard Polishing Process for Single-mode and Multimode Connectors (>30dB) ..................................... 13
Polishing Process for Single-mode Connector Return Loss >40dB ............................................................. 16
Final Cleaning ............................................................................................................................................... 20
Mounting Unjacketed/900
ϑm
Buffered Fiber ............................................................................................... 20
Connector Assembly and Installation ............................................................................................................ 22
3M SC and FC/PC3 Epoxy Field Termination Kits ........................................................................................ 24
.068 in.
(1.73 mm)
.352 in.
(8.94 mm)
.289 in.
(7.34 mm)
.218 in.
(5.54 mm)
.266 in.
(6.75 mm)
.283 in.
(7.19 mm)
Ø .0984 in.
(2.499 mm)
.972 in.
(24.7
mm)
.205 in.
(5.2 mm)
Key-Shell
SC Connector
.289 in.
(7.34 mm)
Crimp Ring
Boot
.235 in.
(5.97 mm)
.925 in.
(23.5 mm)
1.97 in.
(50.0 mm)
SC Connector
Ø .094 in.
(2.499
mm)
Ø .386 in. Ø .234 in.
(9.8 mm) (5.94 mm)
.154 in.
(3.9 mm)
FC/PC3
Connector
Crimp Ring
Boot
1.66 in.
(15.0 mm)
.925 in.
(23.5 mm)
2.27 in.
(57.7 mm)
FC/PC3 Connector
2
SECTION A
Warnings, Recommendations and Overview
1. Most fibers can be mechanically stripped without the aid of chemicals or heat. If the fiber is not mechanically
strippable, contact 3M's Training Department or the cable manufacturer for their recommendations.
2. The recommended cleaning solvent for connectors and tools is isopropyl alcohol (reagent grade, 99% or
better). It may be purchased from laboratory supply companies. Isopropyl alcohol may also be used to clean
the lapping acetate and stripping tool when necessary.
Do not use acetone for cleaning.
3. For safety reasons, no chemicals have been shipped with the 3M brand Field Termination Kit. We have,
however, included bottles for the alcohol and water.
Note:
Carefully follow safety,health and disposal information on container label or Material Safety Data
Sheet for isopropyl alcohol being used.
4. Please contact the 3M Telecom Systems Training Department if you have any questions concerning
chemicals or procedures.
Warning: Do not view fiber ends if they are laser illuminated. Eye damage may result. Illuminate fiber
ends with white light only.
5. The connectors described in this manual have pre-radiused PC "domed" ferrule ends to ensure low
attenuation and the best reflection performance. All polishing should be done
on the soft polishing pad
only,
as described in this manual.
6. The 3M brand connectors with PC finishes are completely intermateable with flat finished connectors. PC to
flat terminations actually provide improved performance over flat to flat terminations. PC to PC terminations
as produced while using this manual, however, offer the best performance.
7. Safety glasses should be worn when working with optical fibers.
8. Appropriate containers of clean, dry, compressed air may be obtained from photographic supply stores. Do
not use types that leave a residue.
3
SECTION A
Warnings, Recommendations and Overview
This manual is for terminating the following field mountable connectors:
Identification
SC Single-mode
125
ϑm
126
ϑm
127
ϑm
SC Multimode
125
ϑm
FC Single-mode
125
ϑm
126
ϑm
127
ϑm
FC Multimode
125
ϑm
Field Termination Kits
Field Termination Kit for SC & FC/PC3 Connectors (110V)
Field Termination Kit for SC & FC/PC3 Connectors (220V)
(See section J for kit listing)
8350
8351
6202
Beige
Black
Beige
8202
8203
8204
Gray
Gray
Gray
Black
Yellow
Silver
White
White
White
6306
Beige
Black
Beige
Product Number
8305
8306
8307
Housing (Color)
Blue
Blue
Blue
Ferrule Collar
Black
Yellow
Silver
Strain Relief Boot
White
White
White
SC Connector
FC/PC3
Connector
(D)
(A)
(B)
(C)
(A)
(C)
(B)
(A) - Strain Relief Boot
(B) - Crimp Ring
(C) - Connector
(D) - Housing
4
SECTION B
Jacketed Cable Preparation
This section is for mounting the 3M brand SC and FC/PC3 field-
mountable connectors on 2.4 mm cable and 3.0 mm cable.
The process for mounting on 900
ϑm
buffered fiber can be found in
Section H.
1.
TURN THE OVEN ON
When the oven is heated to the proper temperature the heater
light will go off.
2.
3.
ASSEMBLE THE CURING STAND ACCORDING TO FIGURE B11
PREPARE CONTAINERS AS LABELED
a. Fill one bottle with isopropyl alcohol (reagent grade).
b. Fill one bottle with water.
Fig. B1
Note:
Carefully follow safety, health and disposal information on
container label or Material Safety Data sheet for isopropyl
alcohol being used.
4.
PREPARE THE CRIMP TOOL
Included in the field termination kit is a crimp tool set. The package
includes a base tool and three die sets to be used as follows:
Die Marking
BIC/ST
Cavity Marking
.151
.213
.178
.120
.137
.190
.120
.137
.226
Application
ST* Bayonet, FC-1 & Biconic
TECS 200/230 connector
Not used
2.4 mm Jacketed Cable
3.0 mm Jacketed Cable
Kevlar crimp
2.4 mm Jacketed Cable
3.0 mm Jacketed Cable
Kevlar crimp
SC / FC3
PPST (Push-Pull ST)
Select the jaw labeled "SC/FC3." Secure the jaws loosely with the
thumb screws. Close the jaws to the fully closed position allowing
the jaws to align, then tighten the screws (Fig. B1).
5
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