Sierra Wireless DART 200 CDPD Modem Guía de usuario Pagina 181

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PN1197-00 Revision 1.0
Glossary
Acronyms
AMPS
Advanced Mobile Phone System
Original name given to the analog voice cellular
telephone system. The standard for cellular telephone
service in North and South America plus some Pacific
rim countries. CDPD uses the same cells and RF channels
as AMPS.
API
Application Programming Interface
ARN
Authentication Random Number
One of two numbers used as part of the CDPD
authentication procedure. See also, ASN.
ASCII
American Standard Code for Information Interchange
An 8-bit data code used by most PCs and many telemetry
devices.
ASN
Authentication Sequential Number
One of two numbers used as part of the CDPD
authentication procedure. See also, ARN.
AT command
A set of modem commands, preceded by an AT,
originally developed by Hayes, Inc. for their modems.
The structure, but not the specific commands that vary
greatly from manufacturer to manufacturer, is a de facto
modem industry standard.
BLER
Block Error Rate
A measure of the percentage of data blocks that could not
be fully corrected by the FEC scheme.
bps
bits per second
The actual data speed over the transmission medium. It is
not necessarily equivalent to baud. See also, baud.
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