Cisco GainMaker Optoelectronic Node 1GHz with 65 86 MHz Split Installation Guide
Chapter 4 Troubleshooting
To Clean Optical Connectors
Note: The proper procedure for cleaning optical connectors depends on the
connector type. The following describes general instructions for cleaning optical
connectors. Many companies have established procedures for cleaning conductors
which should be followed. If your company has established procedures, the
following instructions should be considered along with your procedures.
WARNING:
Avoid personal injury! Use of controls, adjustments, or performance of
procedures other than those specified herein may result in hazardous
radiation exposure.
Avoid personal injury! The laser light source on this equipment emits
invisible laser radiation. Avoid direct exposure to the laser light source.
Avoid personal injury! Viewing the laser output with optical instruments
(such as eye loupes, magnifiers, or microscopes) may pose an eye hazard.
Connect or disconnect fiber only when equipment is OFF or in Service mode.
Do not apply power to this equipment if the fiber is unmated or unterminated.
Do not look into an unmated fiber or at any mirror-like surface that could reflect
light that is emitted from an unterminated fiber.
Do not view an activated fiber with optical instruments such as eye loupes,
magnifiers, or microscopes.
Use safety-approved optical fiber cable to maintain compliance with applicable
laser safety requirements.
Fiber Optic Connector Cleaning Instructions
Connector cleanliness is crucially important for optimum results in fiber-optic
communications links. Even the smallest amount of foreign material can make it
impossible to obtain the expected insertion and return losses. This can reduce the
range of the equipment, shorten its expected service life, and possibly prevent the
link from initializing at all.
New equipment is supplied with clean optical connectors and bulkheads. All optical
New equipment is supplied with clean optical connectors and bulkheads. All optical
connectors (bulkheads and jumpers) should be inspected using an appropriate
optical scope prior to connector mating. If endface contamination is observed, the
connector should be cleaned and then re-inspected to verify cleaning.
Connectors and Bulkheads
Most fiber-optic connectors are of the physical contact (PC) type. PC type connectors
Most fiber-optic connectors are of the physical contact (PC) type. PC type connectors
are designed to touch their mating connectors, thereby preventing air gaps which
cause reflections. For optimum performance, all dirt must be removed.
Bulkheads can also become dirty enough to affect performance, either from airborne
Bulkheads can also become dirty enough to affect performance, either from airborne
dust or from contamination introduced by connectors.
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