Portable Media Storage User Manual
24
Fiber 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. These 
protective caps should not be removed until the moment of connecting the fiber cable to 
the device. Should it be necessary 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 it is suspected that the optics have been contaminated, alternate between blasting with 
clean, dry, compressed air and flushing with methanol to remove particles of dirt. 
Electrostatic Discharge Precautions 
Electrostatic discharge (ESD) can cause damage to any product, add-in modules or stand 
alone 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 stand alone units over any surface. 
WARNING!
 Integrated circuits and fiber optic components are 
extremely susceptible to electrostatic discharge damage. Do not 
handle these components directly unless you are a qualified service 
technician and use tools and techniques that conform to accepted 
industry practices. 










