Start with the Box...The NB141207-2HF is designed to protect sensitive equipment from the elements and supply it with proper airflow. The unit features a thermostat controlled 200W heating system and high flow 240 VAC fan featuring ball bearings, along with provisions for connecting AC power, data or RF cables to the enclosure. Additional holes can be added to the enclosure for custom orders.The Enclosure is a rugged weatherproof design that is ideal for both indoor and outdoor applications. Constructed from molded fiberglass reinforced polyester, it is well suited for high temperatures or corrosive environments. The integral mounting flange allows mounting on any flat surface. When used with its optional mounting brackets, the unit can mount to a pole or column. The raised lid features a continuous stainless steel hinge and quick release stainless steel latches with padlock hasps. The raised lid features a full gasket to block water intrusion. The enclosure material is UV stabilized and comes in machine tool gray.Mounting Plate...The aluminum mounting plate has provisions to mount WLAN equipment from Cisco®, Symbol®, D-Link®, HyperLink and more (see mounting plate drawing). With the optional HGX-AMOUNT02 bracket a wide array of HyperLink Amplifiers, Power-Over-Ethernet products and Power Supplies can be mounted as well. Two of these brackets can be mounted side by side. Also available is the HGX-NMOUNT03 Universal Mounting Shelf that can be attached to the mounting plate and can accommodate additional equipment to be placed in the enclosure.Hot and Cold Environments...To help ensure trouble-free operation of electronic equipment, proper operating temperatures inside an enclosure needs to be maintained. With the built-in heater and cooling fan, internal temperatures can be better maintained. This model is ideal in hot and/or cold environments. The NB141207-2HF model includes a thermostat controlled cooling fan that is powered via the mounting plate terminal strip. The high airflow, low noise fan used allows air to be pushed or pulled through the enclosure. Filters for both ports are easily removable for cleaning and replacement. The fan turns on when the internal temperature rises to 120° F (49° C) ±5° and turn off at 90° F (32° C) ±10°.It also includes a thermostat-controlled 200W heating system. The heater turns on when the internal temperature drops to 40° F (4° C) ±7° and turns off at 60° F (15° C) ±5°. No extra room for the heater is required since it is mounted underneath the plate.