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-3108-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).
In order to meet the growth in demand for digital services, telecom companies are faced with the need to install significant numbers of OSP telecommunication cabinets that are often well away from existing infrastructure.
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-3108-CORE. Enclosure heating may also be required in colder regions.
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.
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