There are two standardised data exchange protocols defined in ISO/IEC 7816-3 for the communication between a Smart Card and a terminal: the byte-oriented half duplex transmission protocol T=0 and the block-oriented half duplex protocol T=1. The character-oriented T=0 protocol is very simple constructed and has a low memory capacity (about 300 Byte). The block-oriented T=1 protocol is a half-duplex protocol and works with error detection (EDC) at the end of block. The memory requirement is about 1.100 Byte.
The Smart Card and the terminal exchange data with the help of these protocols.

There are two standardised data exchange protocols defined in ISO/IEC 7816-3 for the communication between a Smart Card and a terminal: the byte-oriented half duplex transmission protocol T=0 and the block-oriented half duplex protocol T=1. The character-oriented T=0 protocol is very simple constructed and has a low memory capacity (about 300 Byte). The block-oriented T=1 protocol is a half-duplex protocol and works with error detection (EDC) at the end of block. The memory requirement is about 1.100 Byte.
The Smart Card and the terminal exchange data with the help of these protocols.

This contactless transmission protocol is standardised by ISO/IEC 14443-4. T=CL is a complete protocol stack. CL stands for contactless. The name structure is derived from the ISO 7816 protocols T=0 and T=1.

TD-SCDMA (Time Division Synchronous Code Division Multiple Access) is an air interface found in UMTS mobile telecommunications networks in Asia as an alternative to W-CDMA. It was developed by the CATT (China Academy of Telecommunications Technology) in collaboration with Datang and Siemens to be accepted by the IT as one of the five IMT-2000 standards.
TD-SCDMA is an option for those operators who want to move from a 2G to a 3G network. Besides data transmission at speeds up to 2 Mbps, it supports circuit-switched data, such as speech and video and packet-switched data from the internet.