Specifies r.f. unmatched 2-pole connectors for use with a variety of balanced shielded cables having twin inner conductors which normally have a characteristic impedance ranging from 75 ohm to 130 ohm. Provides mating face and panel fixing dimensions, ratings, information on climatic category, gauging and type approval tests. These connectors are for low power, quick connect/disconnect applications using a bayonet coupling mechanism and are commonly known as type BNO.