What is the suggested height of coaxial cables to enter facility above facility door?

• A. 1 ft
• B. 2 ft
• C. 3 ft
• D. 4 ft

Answer: (B)

Positioning the coax entry point above the doorway protects the entry from weather and door movement. When the entry is above the door, it stays out of the splash zone from rain, splash, and snow, and it’s less likely to be compromised by debris or ice that can form at ground level. This placement also prevents the door from striking or pulling on the cable as it opens and closes, reducing mechanical stress on the cable and the seal. With the entry located higher, you can install a proper weatherproof seal and provide enough space for proper strain relief and routing. All of these factors help maintain a reliable, protected penetration into the building, which is why this height is recommended.