ADTRAN MX2800 M13 User Manual page 180

Appendix D, Acronyms/Abbreviations MX2800 M13 Multiplexer User Manual
PSTN ............................ public switched telephone network
PVC .............................. permanent virtual circuit
R
RD................................. receive data
RDL.............................. remote digital loopback
RL................................. remote loopback
RMA............................. return material authorization
RS ................................. request to send
RTS............................... request to send
Rx ................................. receive
S
SA ................................. service affecting
SEFS............................. severely errored framing seconds
SES ............................... severely errored seconds
SLIP ............................. serial line internet protocol
SNMP ........................... simple network management protocol
SONET......................... synchronous optical network
SR ................................. data set ready
SW56 ............................ switched 56
sync............................... synchronous
T
TA ................................. terminal equipment available
TD................................. transmit data
TDM ............................. time division multiplexing
TM................................ test mode
TR................................. data terminal ready
Tx.................................. transmit
U
UAS .............................. unavailable seconds
W
WAN ............................. wide area network
D-4 61200290L1-1G