Mount at the zone boundary with a short low-inductance bond, retain RF/DC/PIM baselines, inspect after an event and follow maker-defined retest or replacement limits. Use a conductive bulkhead or the shortest specified ground connection at the cable entry; a long pigtail adds inductive voltage exactly when surge current rises fastest. Keep protected and unprotected cable routes separated, respect port direction where specified, weather-seal the exposed interface, apply connector and mounting torque, and avoid cable strain. Coordinate the coax protector with antenna bonding, feeder grounding kits, mains and data-line SPDs and any downstream receiver limiter. Before service, record S11, S21, DC continuity or isolation and PIM where relevant. After a severe event, inspect for arcing, heat or connector damage and repeat breakdown or cartridge, return-loss and insertion-loss checks under the maker's procedure.
Commission with the final connectors, jumpers, mounting torque, weather seal and earth connection. Save photographs, hardware identity, S11/S21, DC pass or isolation, leakage and PIM when relevant, together with calibration and reference planes.
After a severe event isolate the protected equipment, inspect for arc, heat, corrosion, water and deformation, then apply only the maker-approved cartridge, sparkover, leakage and RF checks. Replace when history is unknown or any electrical, mechanical or sealing limit fails; continuity by itself is not a return-to-service decision.