scope:

This Recommendation specifies the immunity requirements for equipment used within the public telecommunication networks and for terminal equipment connected to such networks. This Recommendation is a product family Recommendation.

This Recommendation gives the minimum test levels applicable in a given environment. The requirements given in specific product family Recommendations supersede those given in this Recommendation.

This Recommendation is applicable to all equipment types:

- equipment in the telecommunication networks, including switching equipment, transmission equipment, radio equipment, power supply equipment, supervisory equipment and control equipment;

- terminal equipment connected to telecommunication networks, including telephone set, facsimile and PBX;

- terminal equipment that uses the LV AC network for telecommunications (i.e., PLT devices).

This Recommendation includes immunity requirements in the frequency range:

• 150 kHz-80 MHz for conducted immunity;

• 80-2700 MHz for radiated immunity.

Other frequency ranges are covered by other K series of ITU-T Recommendations, e.g., [b-ITU-T K.76] for the 9-150 kHz frequency range.