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SB nº 169: Detectable Disturbance (Spec Change)

v1.0 Specification Bulletins
Contactless CardNFC Consumer Device

Specification Bulletin No. 169 First Edition May 2015 Detectable Disturbance This Specification Bulletin clarifies the requirements for the detectable disturbance that the PICC shall not produce during a minimum period of tnn,min

Applicability

This Specification Bulletin applies to:

  • EMV Contactless Specifications for Payment Systems, Book D – EMV Contactless Communication Protocol Specification, Version 2.5 – March 2015.

Related Documents

  • None

Description

In Book D – requirement 4.9.1.1 in Requirements 4.29 describes the detectable disturbance that the PICC shall not produce during a period of at least tnm,min. A clarification is provided as to what qualifies as a detectable disturbance.

http://www.emvco.com/specifications.aspx.

Specification Changes Change Requirements 4.29 tnn,min as follows: Requirements 4.29: tnn,min PICC 4.9.1.1 The PICC shall not produce any detectable disturbance during a period of at least tnn,min before sending its response. Where any modulation of the carrier envelope at J2 of the EMV - TEST PCD that can be distinguished from noise as having been produced by the PICC constitutes detectable disturbance. The exact quantity of what constitutes ‘any detectable disturbance’ is not defined by this version of the specification. This was previously requirement number 4.8.1.16.

http://www.emvco.com/specifications.aspx.