ADTRAN Express 3100 User Manual page 116

Appendix E. Acronyms and Abbreviations
LCD . . . . . . . . liquid crystal display
LDN. . . . . . . . local directory number
LED . . . . . . . . light emitting diode
LN . . . . . . . . . load number
Mbps . . . . . . . megabits per second
NC . . . . . . . . . no connection
POTS . . . . . . . plain old telephone service
PPP . . . . . . . . Point-to-Point Protocol
RD . . . . . . . . . received data
REN . . . . . . . . ringer equivalence number
RTS . . . . . . . . request to send
RX . . . . . . . . . receive
RXD . . . . . . . . receive data
SG. . . . . . . . . . signal ground
SPID. . . . . . . . service profile identifiers
TD . . . . . . . . . transmitted data
TEI . . . . . . . . . terminal endpoint identifier
TX. . . . . . . . . . transmit
TXD . . . . . . . . transmit data
UART . . . . . . universal asynchronous receiver/transmitter
Y2K . . . . . . . . Year 2000
E-2 Express 3100 User Manual 61200240L2-20