ADTRAN DSU IQ User Manual page 156

Appendix C. Acronyms/Abbreviations
DCE ................... data communications equipment
DDS................... digital data service
DE ...................... discard eligible
DLCI.................. data link connection identifier
DSAP................. destination service access point
DSR ................... data set ready
DSU ................... data service unit
DTE ................... data terminal equipment
DTR ................... data terminal ready
EA ...................... extended address
EBCDIC ............ extended binary coded decimal interexchange code
FECN ................. forward explicit congestion notification
FEP..................... front end processor
FIFO................... first in first out
FR....................... frame relay
FRAD ................ frame relay access device
FRF..................... frame relay forum
FSU .................... frame relay service unit
GUI.................... graphical user interface
HDLC ................ high-speed data link control
IA ....................... inactive
IP ........................ internet protocol
ISDN ................. integrated services digital network
ITU..................... International Telecommunications Union
KA...................... keep alive
kbps................... kilobits per second
LAN ................... local area network
LED.................... light emitting diode
LI ........................ link integrity
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