Cat 7 external-grade cables are ideal for external applications where mechanical and environmental protection is required. For example, running through ducts, up the side of a building, or up masts. There is no messy gel, making termination quicker and easier. Designed for fixed installations, the duct grade Cat 7 cable uses the original high-performance Cat 7 as a base cable but with an additional heavy UV-resistant PE (polyethylene) jacket to protect against moisture and give the cable extra strength. (tested to ISO 4892-3).
