to support both higher data rates and connectivity between DTEs (data-terminal equipment) or DCEs (data-communication equipment) over digital lines. See also Communication endpoint Data circuit-terminating equipment End system Federal Standard 1037C, MIL-STD-188 Host (network) Node (networking) Terminal (telecommunication) Serial port, in depth description of pinouts References External links Internetworking Technology Handbook, Frame Relay, Cisco Systems Telecommunications equipment