This part of IEC 60966 is a detail specification that relates to semi-rigid cable assemblies composed of type 50-9 semi-rigid coaxial cables with foamed polyethylene dielectric and connectors such as type 7-16 (IEC 61169‑4), type 4.1-9.5 (IEC 61169‑11), type N (IEC 61169‑16), type S7-16 (IEC 61169‑53) or type 4.3-10 (IEC 61169‑54).

This detail specification applies to the cable assemblies (jumper cables) for mobile communication, particular for the cable assemblies used between the main feeder and antennas or between the main feeder and equipment system or between remote radio heads and antennas. The operating frequency is up to 6 000 MHz.