Zypcom Z34-PC, User Manual

Page: 122 / 132

Appendix D-4
D
Data Rates and DTE
Speed
A data rate (or line speed) is sometimes confused with a
DTE speed setting in PC software. In this manual, AT
commands from the DTE are referred to as a speed or
DTE speed. Data rate or line speed refer to the speed of
the connection between modems.
Modem-to-modem data rates (line speed):
300-33,600bps
DTE-to-modem speeds (AT commands):
300-115200bps
Fax mode DTE-to-modem speed (+FCLASS commands):
19,200bps
Voice mode DTE-to-modem speed (+FCLASS
commands):
19,200-115,200bps
MNP
Microcom Network Protocol is an older data
communication protocol that allows error-free
interactive communications with a variety of computers
or terminals over ordinary voice-grade telephone lines.
LAPM
Link Access Procedure for Modems. An HDLC error
correction protocol for use with error-correcting
modems. Part of the new error control protocol CCITT
V.42.