US Robotics USR5610B User Manual page 68

62 C 5: G
HAPTER L OSSA RY
x2 Technology
TM
U.S. Robotics's trademark for its proprietary technology that uses the
digital telephone network to increase the bit rate of the receive channel
by eliminating the analog to digital conversion commonly found in
modem connections. x2 connections require a modem with x2
technology calling a digitally connected Internet Service Provider or
corporate host site compatible with x2 technology.
XON/XOFF
Standard ASCII control characters used to tell an intelligent device to
stop/resume transmitting data.
Zmodem
Similar to Xmodem and Ymodem, except it includes batch transfer, the
ability to recover from a partially complete transfer, an autostart feature,
and improved efficiency.