This document discusses the physics behind outdoor cabinet thermal management, provides comparisons among passive and active cooling solutions, and offers a methodology for selecting the appropriate enclosure cooling system for your particular heat load and environmental. This document discusses the physics behind outdoor cabinet thermal management, provides comparisons among passive and active cooling solutions, and offers a methodology for selecting the appropriate enclosure cooling system for your particular heat load and environmental. Today, we will delve into the key aspects of cabinet environment control - heat dissipation, heating, and dehumidification. We will analyze how these three elements work together to ensure that equipment always operates at its optimal state. Cabinet environment control: why is it so important?Between solar radiation pounding down on cabinet surfaces, internal electronics adding their own thermal loads, and ambient temperature jumping from colder-than-anything winter to hotter-than-ever summer, the phenomena that threaten overheating are tangible—and costly. One thermal transient event. GL has designed climate controlled outdoor cabinets that house sophisticated electronic equipment, such as computers and servers consisting of microprocessors, fiber optic devices, Ethernet routers and switches, UPS units, and other semiconductor components. These electronic systems and components. The invention discloses a heat-dissipation dehumidification type outdoor communication cabinet, which belongs to the technical field of communication cabinets, and is characterized in that a wind deflector is additionally arranged on a cabinet body, a flow-guiding dehumidification part extending. Outdoor communication cabinets are generally located outdoors without shelter.