EN 55022 / CISPR 22
EN 55022 (CISPR 22) was the emissions standard for information technology equipment before being replaced by CISPR 32 (EN 55032). This article explains its legacy, what it covered, and how it relates to the current standard for multimedia equipment. Part of the Compatible Electronics Learning Center.
ⓘ Withdrawal notice: On March 5, 2017, EN 55022 (CISPR 22) was officially discontinued. EN 55032 (CISPR 32) is the updated EMC emissions standard that replaces EN 55022 (ITE equipment), as well as EN 55013 (broadcast receivers) and EN 55103 (professional audio, video, and entertainment systems), consolidating all three into a single multimedia equipment standard. New product submissions should use EN 55032 / CISPR 32.
What is EN 55022 / CISPR 22?
EN 55022 is the European harmonized edition of CISPR 22, which was the primary radio disturbance emissions standard for information technology equipment (ITE) for several decades. It covered products such as computers, monitors, printers, and networking equipment — specifying conducted and radiated emission limits and measurement methods.
ⓘ Legacy accreditation note: Compatible Electronics maintains accreditation for EN 55022 (2010) and AS/NZS CISPR 22 at our Brea and Newbury Park locations to support legacy product re-testing, change-in-ID submissions, and markets where the transition to CISPR 32 is still in progress. New products should be tested to CISPR 32 / EN 55032.
What CISPR 22 Covered
CISPR 22 applied to information technology equipment — defined as any equipment with a primary function of entering, storing, displaying, retrieving, transmitting, processing, switching, or controlling data and telecommunication messages, and which may be equipped with one or more terminal ports typically operated in an information technology network.
It specified Class A limits (for commercial/industrial environments) and Class B limits (for residential use) for both conducted emissions (150 kHz–30 MHz at the mains port) and radiated emissions (30 MHz–1 GHz at a measurement distance of 10 m or 3 m).
Transition to CISPR 32 / EN 55032
The CISPR 22 to CISPR 32 transition was driven by two factors: the convergence of IT and audio/video functions into single products (a laptop with HDMI output spans both CISPR 22 and CISPR 13 in the old framework), and the need to update limits and measurement methods to reflect modern digital technology operating above 1 GHz. CISPR 32 provides a unified, technology-neutral approach.
For current compliance, use CISPR 32 / EN 55032 for emissions and CISPR 35 / EN 55035 for immunity.
| Standard Version | Locations Accredited |
|---|
| EN 55022 (2010) | Lake Forest/Silverado, Newbury Park |
| AS/NZS CISPR 22 (2009) + A1 (2010) | Brea, Newbury Park |
| AS/NZS CISPR 22 (2009) | Brea |
| AS/NZS CISPR 22, 3rd Edition (2006) | Brea |
Ready to Test Your Product?
Compatible Electronics is an NVLAP-accredited EMC testing laboratory (Lab Code 200527-0) with three Southern California locations.
www.celectronics.com
