ZyXEL Elite 2864I User Guide - Page 244
Terminal Equipment, Terminal program, Token, Transfer mode, Transfer rate, Western, XModem, XON/XOFF
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ter: Old French word for three. Terminal Equipment: A computer running terminal software is used as terminal equipment in modem connections. Terminal program: A program which emulates the operation of a hardware terminal on a computer's screen and keyboard. Token: A token is a reencoding of information in less bits; basically an abbreviation. Transfer mode: Data can be transferred either synchronouosly or asynchronously. Transfer rate: The speed at which the data bits are effectively transferred. UART: Universal Asynchronous Receiver and Transmitter; a special IC chip which controls the serial port. Different models are available for PCs. Models with an internal buffer usually allow higher transfer rates. V.: The ITU-TSS V.-standards describe data transfer via telephone lines. Western jack: Telephone wall outlet connector used in the USA and other countries. X.: The ITU-TSS X.-standards describe data transfer in public data networks. XModem: A widely used, though somewhat aged, file transfer protocol. The use of 128 byte data blocks severely limits the achievable throughput. XON/XOFF: Software flow control. The data flow is stopped by sending ASCII character Control-Q (dec. 17; hex $11) and restarted by Control-S (dec. 19; hex $13). YModem: A file transfer protocol which uses data blocks of 1 Kbyte and transfers filenames and more than one file in one transfer. ZModem: A file transfer protocol with variable block size, reinitiation of aborted transfers and transfer of several files in one transfer along with file (and path) names. Glossary-8