Black Box LGC5150A, Руководство пользователя

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Page 19
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Chapter 5: Maintenance
5. Maintenance
5.1 Fiber Optic Cleaning GuidelinesFiber Optic Cleaning
Guidelines
Fiber Optic transmitters and receivers are extremely susceptible to contamination
by particles of dirt or dust, which can obstruct the optic path and cause
performance degradation.Good system performance requires clean optics and
connector ferrules.
1. Use fiber patch cords (or connectors, if you terminate your own fiber) only from
a reputable supplier; low-quality components can cause many hard-to-diagnose
problems in an installation.
2. Dust caps are installed at Black Box to ensure factory-clean optical devices. Do
not remove these protective caps until the moment you connect the fiber cable
to the device. If you need to disconnect the fiber device, reinstall the protective
dust caps.
3. Store spare caps in a dust-free environment, such as a sealed plastic bag or box
so that when reinstalled they do not introduce any contamination to the optics.
4. If you suspect that the optics have been contaminated, alternate between
blasting with clean, dry, compressed air and flushing with methanol to remove
particles of dirt.
5.2 Electrostatic Discharge (ESD)
Electrostatic discharge (ESD) can cause damage to any product, add-in modules
or standalone units, containing electronic components. Always observe the
following precautions when installing or handling these kinds of products.
1. Do not remove unit from its protective packaging until ready to install.
2. Wear an ESD wrist grounding strap before handling any module or component.
If the wrist strap is not available, maintain grounded contact with the system
unit throughout any procedure requiring ESD protection.
3. Hold the units by the edges; do not touch the electronic components or gold
connectors.
4. After removal, always place the boards on a grounded, static-free surface, ESD
pad, or in a proper ESD bag. Do not slide the modules or standalone units
over any surface.