Sierra Wireless DART 200 CDPD Modem - Manual (Page 183)

DART 200 CDPD Modem User’s Guide Glossary
PN1197-00 Revision 1.0 Glossary-3
DTE Data Terminal Equipment
The official carrier name for the device (PC, MDT, RTU)
attached to the modem (DCE).
DTR Data Terminal Ready
One of the RS-232 signal lines. Used to signal the modem
(DCE) that the attached device (DTE) is ready to
communicate (powered on). Can also be used by the
modem to escape from data mode to command mode.
EIA Electronic Industries Association
A standards setting body.
EID Electronic Identifier
This is a unique, 48 bit number permanently installed in
the modem.This is used by the MDIS to identify the
modem.
ESH End System Hello
The M-ES initiated final step in the registration process, it
contains the M-ES authentication credentials as well as
additional optional parameters.
ESN Electronic Serial Number
For CSC only. The ESN serves the same basic purpose in
circuit-switched as the EID does for CDPD.
F-ES Fixed End System
This refers to the host computer as a component in the
CDPD network.
FEC Forward Error Correction
Used by MAC layer protocol to correct for airlink data
errors. Implementation uses Reed-Soloman algorithm that
divides the 378-bit airlink block into 63, 6-bit symbols
and can correct a block with errors in up to seven
symbols.
FTP File Transfer Protocol
A TCP/IP based file transfer protocol.
GMID (Multicast) Group Member Identifier
A unique ID for a specific multicast group to which
multiple modems can belong. A modem can be a member
of several multicast groups. Used by the MDIS in
combination with the multicast NSAP to facilitate routing
of multicast messages.
GMSK Gaussian Minimum Shift Keying modulation
The CDPD modulation scheme.