ADTRAN 1202011L1, User Manual

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Appendix H. Glossary
61204011L1-1 DSU IV ESP User Manual H-9
statistical multiplexing
Interleaving the data input of two or more devices on a single channel or access
line for transmission through a frame relay network. Interleaving of data is
accomplished using the DLCI.
switched network
The network of dial-up telephone lines using circuit switching to provide com-
munications services to network users.
synchronous
Communications in which the timing is achieved by sharing a single clock. Each
end of the transmission synchronizes itself with the use of clocks and informa-
tion sent along with the transmitted data.
synchronous data link control (SDLC)
A link-level communications protocol used in an international business
machines (IBM) systems Network Architecture (SNA) network that manages
synchronous, code-transparent, serial information transfer over a link connec-
tion. SDLC is a subset of the HDLC protocol developed by ISO.
TELNET
The standard TCP/IP remote login protocol specified in RFC-854.
VT-100
A non-intelligent terminal or terminal emulation mode used for asynchronous
communications. Used to configure the DSU IQ.