Protecting Equipment in The Outside Plant
The environment can play a large role in the quality and lifespan of equipment used in the outside plant. It is critical that environmental testing criteria as well as design and performance requirements be defined for this type of equipment.
There are generally four operating environments or classes covering all outside plant (OSP) applications, including wireless facilities.
Electronic equipment located in one or more of these environmental class locations are designed to withstand various environmental operating conditions resulting from climatic conditions that may include rain, snow, sleet, high winds, ice, salt spray, and sand storms. Since outside temperatures can possibly range from -40°C (-40°F) to 46°C (115°F), with varying degrees of solar loading, along with humidity levels ranging from below 10% up to 100%, significant environmental stresses within the enclosure or facility can be produced.
Telcordia GR-3108, Generic Requirements for Network Equipment in the Outside Plant (OSP) contains the most recent industry data regarding each Class described above. It also discusses what is currently happening in ATIS and Underwriters Laboratories (UL)
The document also includes
- environmental criteria such as operating temperatures, humidity, particulate contamination, pollution exposure, and heat dissipation
- mechanical criteria such as structural requirements, packaging, susceptibility to vibration, earthquake, and handling
- electrical protection and safety including protection from lightning surges, AC power induction and faults, and Electromagnetic Interference (EMI), and DC power influences
Read more about this topic: Outside Plant
Famous quotes containing the words plant, protecting and/or equipment:
“Plant melons, harvest melons; plant beans, harvest beans.”
“Never has any one been less a priest than Jesus, never a greater enemy of forms, which stifle religion under the pretext of protecting it. By this we are all his disciples and his successors; by this he has laid the eternal foundation-stone of true religion; and if religion is essential to humanity, he has by this deserved the Divine rank the world has accorded him.”
—Ernest Renan (18231892)
“Why not draft executive and management brains to prepare and produce the equipment the $21-a-month draftee must use and forget this dollar-a-year tommyrot? Would we send an army into the field under a dollar-a-year General who had to be home Mondays, Wednesdays and Fridays?”
—Lyndon Baines Johnson (19081973)