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Maintaining IOC Cables
To maintain IOC cables, follow these guidelines:
- Use the cable management system (shown in Figure 14) to support cables and prevent
cables from dislodging or developing stress points.
- Place excess cable out of the way in the cable management
system. Do not allow fastened loops of cable to dangle from the connector
or cable management system, because this stresses the cable at the
fastening point. Putting fasteners on the loops helps to maintain
- Keep the cable connections clean and free of dust and
other particles, which can cause drops in the received power level.
Always inspect cables and clean them if necessary before connecting
- Label both ends of IOC cables to identify them.
The following guidelines apply specifically to fiber-optic cable:
- When you unplug a fiber-optic cable from an IOC,
always place a rubber safety plug over the transceiver on the IOC faceplate
and on the end of the cable.
- Anchor fiber-optic cable to avoid stress on the connectors.
When attaching fiber to an IOC, be sure to secure the fiber
so it is not supporting its own weight as it hangs to the floor. Never
let fiber-optic cable hang free from the connector.
- Avoid bending fiber-optic cable beyond its bend radius.
An arc smaller than a few inches can damage the cable and cause problems
that are difficult to diagnose.
- Frequent plugging and unplugging of fiber-optic cable
into and out of optical instruments can cause damage to the instruments
that is expensive to repair. Instead, attach a short fiber extension
to the optical equipment. Any wear and tear due to frequent plugging
and unplugging is then absorbed by the short fiber extension, which
is easy and inexpensive to replace.
- Keep fiber-optic cable connections clean. Small micro-deposits
of oil and dust in the canal of the transceiver or cable connector
could cause loss of light, reducing signal power and possibly causing
intermittent problems with the optical connection.
To clean the transceivers, use an appropriate fiber-cleaning
device, such as RIFOCS Fiber Optic Adaptor Cleaning Wands (part number
946). Follow the directions for the cleaning kit you use.
After you have cleaned the transceiver on the fiber-optic IOC interface
or port, make sure that the connector tip of the fiber-optic cable
is clean. Use only an approved alcohol-free fiber-optic cable cleaning
kit, such as the Opptex Cletop-S® Fiber Cleaner. Follow the directions
for the cleaning kit you use.
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