US Robotics Sportster Flash x2 User Manual page 40

Data Compression Table
A table containing values assigned for each character during a call
under MNP5 data compression. Default values in the table are
continually altered and built during each call: the longer the table, the
more efficient throughput gained.
Data Mode
The mode in which the fax modem is capable of sending and receiving
data files. A standard modem without fax capabilities is always in data
mode.
DCE
Data Communications (or Circuit-Terminating) Equipment, such as dial-
up modems that establish and control the data link via the telephone
network.
Default
Any setting assumed, at startup or reset, by the computer's software
and attached devices, and operational until changed by the user or
software.
Detect Phase
In the ITU-T V.42 error-control protocol, the first stage in establishing if
both modems attempting to connect have V.42 capability.
Dictionary
The term used for compression codes built by the V.42 bis data
compression algorithm.
Digital Loopback
A test that checks the modem's RS-232 interface and the cable that
connects the terminal or computer and the modem. The modem
receives data (in the form of digital signals) from the computer or
terminal, and immediately returns the data to the screen for verification.
Digital Signals
Discrete, uniform signals. In this manual, the term refers to the binary
digits 0 and 1. Contrast with analogue signals.
36 Sportster Flash x2 - User's Guide