The International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). Third edition. 2006-11-01. 58p. This part of ISO/IEC 7816 specifies the power and signal structures, and information exchange between an integrated circuit card and an interface device such as a terminal.
It also covers signal rates, voltage levels, current values, parity convention, operating procedure, transmission mechanisms and communication with the card.