D. OPTICAL FIBER CABLE
B–63173EN/03
APPENDIX
488
7. Installing the optical cable junction adapter
The optical cable junction adapter should be installed within a cabinet,
as a rule. If it is impossible to avoid installing it within a cabinet,
protect the adapter and the optical cable portions (such as connectors
and cords) not covered with reinforcement coating from the outside air
by, for example, covering them with packing.
8. Environmental resistance of the optical cable junction adapter
D The optical cable junction adapter is not waterproof. Even when
optical cables are attached to both ends of the adapter, there are very
small gaps in the linked portions, so water resistance can not be
expected.
D When optical cables are attached to both ends of the junction
adapter installed in a normal environment (such as within a
cabinet), it is unlikely that dust will penetrate between the adapter
and optical fiber to the degree that it may hamper normal optical
linkage. If one or both ends of the adapter are left open, dust and
dirt may accumulate even when the adapter is in a normal
environment (such as within a cabinet). The dust and dirt on the
adapter ends is likely to hamper normal optical linkage when the
optical cables are attached. In such a case, clean the junction
adapter and the optical connector using the optical cable junction
adapter cleaning method described below.
D Do not allow cutting fluid to splash over the adapter or those optical
cable portions (such as connectors and cords) that are not covered
with reinforcement coating. If the inside of the adapter and cable
end surfaces are contaminated with cutting fluid, a malfunction
may occur.
9. Cleaning
If the optical cable junction adapter, optical–to–electrical conversion
module, or optical cable are soiled, clean them according to the
following procedures.
D Cleaning the optical cable junction adapter and optical-to-electrical
conversion module
First, clean the entire housing by wiping it with a cloth moistened
with, or by washing it in, ethyl alcohol or HCFC141B (alternative
CFC; High Shower spray can DS–2168, manufactured by Sun
Hayato). Similarly, wash the two sleeves in the adapter or wipe
them with a cotton swab or the like.