Can a telecom cabinet operate without heating and cooling?
Although the most rugged types of telecom equipment can operate without heating and cooling, most outdoor telecom cabinets are designed to comply with the GR--CORE Class 1 specification, which requires that the internal temperature of the cabinet is maintained between 41°F (5°C) and 104°F (40°C).
Do Telecom cabinets need enclosure cooling?
The heat load of modern telecom cabinets is often high, and it’s usually necessary to install enclosure cooling equipment to maintain the internal temperature below the higher limit specified by GR--CORE. Enclosure heating may also be required in colder regions.
Why should you install cabinet cooling equipment?
This has fueled the need to install cabinet cooling equipment to ensure that the telecom equipment in these cabinets is operating within a specified temperature range. Outside plant (OSP) telecom enclosures are expected to operate reliably in all kinds of weather.
What is the service life of telecommunication equipment at 113°F (45°C)?
ASHRAE, the Association of Heating, Refrigeration and Air-Conditioning Engineers, investigated this and established that for telecommunication equipment, the service life at 113°F (45°C) is reduced by a factor of 1.8 compared with the service life at 68°F (20°C).
Why should telecom equipment be enclosed in colder regions?
Enclosure heating may also be required in colder regions. Apart from the need to ensure telecom equipment conforms to the required specifications, the industry must ensure that solutions devised are such that overall costs are minimized while reliability is enhanced.
What are the Telcordia specifications for outdoor plant cabinets?
Telcordia specifications GR-487 and GR-: The telecom industry has a long history of outdoor plant cabinets and has developed detailed specifications such as the Telcordia Requirements for Electronic Equipment Cabinets (GR-487) and the GR-, which specifies equipment testing criteria.
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