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CNS-13438 Testing of Information Technology Equipment

CNS 13438 describes radio disturbance levels of the information technology equipment. As a leader in intentional and unintentional radiator compliance testing, Keystone Compliance assists electronic equipment manufacturers with EMC and wireless testing. Meeting the IEC, EN, and other EMC testing requirements can be challenging. Not only do we understand the challenges, but we help guide companies through the process.

Keystone’s expert testing engineers streamline the process and assist companies to achieve the compliance they require. Our proven process helps avoid product launch delays. Keystone Compliance’s accurate test reports are delivered quickly using our “four-eyes” approach. Meaning that multiple engineers and technicians review each report, ensuring that all the information required is present.

Request a quote to see why we are one of the fastest-growing EMC and wireless testing labs in the country. Contact us to discuss your product and how we can assist you in achieving CNS 13438 testing certifications.

Summary of CNS 13438 Information Technology Equipment Testing

The CNS 13438 standard applies to information technology equipment (ITE) for the frequency range of 9 kHz to 400 GHz. The intention of CNS 13438 is to establish uniform requirements for radio disturbance levels of ITE. The standard test method also sets limits of disturbance to describe methods of measurement and to standardize operating conditions and interpretation of results.

Information Technology Equipment (ITE) can be described as any equipment that has a primary function of either entry, storage, display, retrieval, or other telecommunications functions. Furthermore, the equipment must be equipped with one or more terminal ports typically operated for information transfer.

Scope of CNS 13438 Testing of Wireless and EMC Equipment

ITE is divided into two categories. Class B ITE and Class A ITE.

Class B ITE: Class B information technology equipment satisfies Class B ITE disturbance limits. This equipment is primarily used for domestic environments with no fixed place of use, telecommunications terminal equipment or personal computers and auxiliary connected equipment.

Class A ITE: This equipment satisfies class A ITE but not Class B ITE limits. This equipment should not be restricted in its sale but the location of use should be limited. Class A ITE should not be used in residential areas.

Specific limits for conducted and radiated disturbances are as follows. Conducted disturbances must meet specific limits including the average limit and the quasi-peak limit when using an average detector receiver. The same qualifies if a quasi-peak detector receiver is used. For radiated disturbances, limits are measured at a specified distance per quasi-peak measuring receiver.

General measurement conditions include ambient noise levels above 6 dB below the specified limit. Where the combined ambient noise and source disturbance exceed the specified limit, the EUT is generally not judged to fail.

The EUT is configured, installed, arranged, and operated in a manner consistent with typical applications. Where possible, if the manufacturer has specified a specific installation practice, it is generally used in the test arrangement. This arrangement is recommended to be typical installation practice.

Keystone Compliance Provides Expert CNS 13438 Lab Testing Services

Keystone has a full lab of test equipment which permits us to provide short lead times on scheduling. Keystone Compliance can accommodate fixed, mobile and portable devices of all sizes. In addition to CNS ITE testing, Keystone has a full scope of expertise including environmental and package testing such as accelerated aging, temperature, and vibration.

If you are ready to start your CNS 13438 testing, please request a quote. Have a question about electromagnetic compatibility or wireless lab testing? Contact us or call (724) 657-9940 and we will determine the best course of action.