LEARN ABOUT AS/NZS CISPR 22

Radio disturbance characteristics & limits and methods of measurement for information technology equipment (ITE)

AS/NZS CISPR 22 is a joint Australian/New Zealand Standard that applies to information technology equipment (ITE) as defined in section 3.1. It was prepared by the Joint Technical Committee TE-003, Electromagnetic Interference, which incorporates the Special International Committee on Radio Interference (CISPR).

Limits are specified for the frequency range 9 kHz to 400 GHz for both Class A and Class B equipment in AS/NZS CISPR 22, and procedures are given for the measurement of the levels of spurious signals generated by the information technology equipment (ITE). Where no frequency limits are specified, no measurements need to be performed.

The goal of AS/NZS CISPR 22 is to describe methods of measurement, standardize operating conditions and interpretation of results, to establish uniform requirements for the radio disturbance level of the equipment contained in the scope, and to fix limits of disturbance.

ITE that would be tested according to AS/NZS CISPR 22 includes computer hardware and software, operating systems, web-based information and applications, telephones and other telecommunications products, video equipment and multimedia products, information kiosks, and office products such as photocopiers and fax machines, among other devices.

To deal with the problem of electromagnetic interference to radio communications, the Australian Communications Authority (ACA) and the Radio Spectrum Management Group (RSM) of the New Zealand Ministry of Economic Development have introduced the trans-Tasman electromagnetic compatibility (EMC) regulatory arrangements.

The trans-Tasman EMC arrangements consist of a set of technical standards and common regulatory processes for products supplied to the Australian and New Zealand markets.

The AS/NZS CISPR 22 EMC regulations apply to suppliers of a wide range of electrical and electronic products in Australia and New Zealand.

Ref; on the acma web site – EMC testing for IT and like equipment