
D. OPTICAL FIBER CABLE
B–63323EN/03
500
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 fiber
end surfaces are contaminated with cutting fluid, a malfunction
may occur.
10.Cleaning
If the optical fiber junction adapter, optical–to–electrical conversion
module, or optical cable are soiled, clean them according to the
following procedures.
D Cleaning the optical fiber 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.
D Cleaning optical cables
For the optical cables, it is important to clean the connectors at their
ends. Any soiling on the optical fiber end surfaces will hamper
optical transmission, resulting in a malfunction. Wipe the optical
fiber end surfaces (that is, the ferrule end surfaces) thoroughly with
a soft, clean cloth (like gauze) moistened with ethyl alcohol or
HCFC141B, in the same way as described above. The use of cotton
swabs may prove convenient. The fiber end surfaces of low–loss
optical cables are lower than the ferrules. To remove any soiling
from the fiber end surfaces completely, push the cotton swab or
gauze into the depressions all the way through while rotating the
ferrule. If the ferrules and optical connectors are contaminated
with oily substances, and they may extend over a cleaned fiber end
surface when it is attached to the optical-to-electrical conversion
module, it is a good idea to wash them before wiping the optical
fiber end surfaces, using the procedure stated above.
11.Compatibility with previous models of FANUC optical fiber cables
FANUC has offered other types of optical cables for different
applications (see Table D(c)).
Note that the optical cables for FANUC I/O Link and FANUC
high–speed serial bus applications cannot be used for the servo
interface application. On the other hand, however, the external optical
cable for the servo interface application can be used in place of
previous cables types, as shown in Table D(d). (The external optical
cable for the servo interface application is designed to offer a level of
performance equivalent to that of the previous cables. This is not the
case with the internal cord type cable, so it cannot replace the previous
cables.)