These cabinets shield sensitive components from harsh weather conditions, including moisture, dust, and temperature extremes. NEMA and IP ratings help determine their ability to resist environmental factors, ensuring durability and reliability. Key. . 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. Since 1989, we've manufactured outdoor telecom cabinets in America's Heartland, providing telecommunications companies. . Outdoor communication cabinets play a vital role in safeguarding critical equipment in commercial environments. With advanced environmental barrier control and durable construction, our climate-controlled cabinets provide protection against heat, dust, water, and environmental. .