Sierra Wireless DART 200 CDPD Modem - Manual (Page 182)

DART 200 CDPD Modem User’s Guide Glossary
Sierra Wireless, Inc. Glossary-2
CDPD Cellular Digital Packet Data
Wireless radio frequency (RF) packet switched data
communication services.
A communications system,
operating over the existing AMPS cellular infrastructure,
that provides services between Fixed End Systems (F-ES)
and Mobile End Systems (M-ES).
CLNP ISO Connectionless Network Protocol
CMIP Common Management Information Protocol
COM Abbreviation for communications
Generally referring to the serial communications port of
a computer.
CTS Clear To Send
One of the RS-232 signal lines. Used in hardware flow
control
DART Data Access Radio Transceiver
Short form of MC-DART, the original product name that
stood for Mobile Cellular Data Access Radio Transceiver.
dBm A logarithmic (base 10) measure of relative power (dB
for decibels); relative to milliwatts (m).
dBW A logarithmic (base 10) measure of relative power (dB
for decibels); relative to one watt.
DB-9 A standard 9-pin connector of a type commonly found on
communications cables and used by PCs and modems.
DB-25 A standard 25-pin connector of a type commonly found
on communications cables and used by PCs and modems.
DCD Data Carrier Detect
One of the RS-232 signal lines. Usually used to indicate
the presence of the carrier frequency.
DCE Data Communication Equipment
The official carrier name for the modem. A DCE is
designed to be interconnected with a DTE.
DNS Domain Name Server
Internet server that supplies mapping from domain names
to IP addresses.
DSR Data Set Ready
One of the RS-232 signal lines. Used to signal the
attached device (DTE) that the modem (DCE) is ready to
communicate (powered on).