Airlink AML001 - Manual (Page 77)

Appendix C Glossary
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RAM - Random Access Memory.
ROM - Read-Only Memory. A chip inside the modem which stores the
factory default settings. This memory cannot be changed.
RTS - Request To Send.
RX - Reception.
S Register - RAM locations in the modem which store the active
configuration.
Serial Port - See COMx.
TCM - Trellis-Coded Modulation.
Touchtone Dialing - A dialing format in which each digit is represented
by a musical frequency.
TX - Transmission.