Sierra Wireless DART 200 CDPD Modem manual Simplified Network Management Protocol

DART 200 CDPD Modem User’s Guide Glossary

SIE

SIM

Symbols In Error

Count of how many 6-bit symbols (used by the FEC to organize the data stream) were in error in the last data block. See also, FEC.

Subscriber Identity Module.

SLIP

SPI

The part of the modem containing the IP Address and authentication credentials

Serial Line Internet Protocol

The original alternative communications protocol used between computers, or between computers and routers on the Internet. See also, PPP.

In CDPD the modem will operate in SLIP mode when the TCP stack function is provided by software rather than the modem.

Service Provider Identifier

SPNI

SNDCP

An alternate identifier for a CDPD service provider. Can be used for special services or billing purposes (CDPD 1.1 only).

Service Provider Network Identifier

A unique numeric code used to identify the CDPD service provider.

Subnetwork Dependent Convergence Protocol

Operates between the MDLP and IP layers. Provides compression, encryption, and segmenting functions.

SNMP Simplified Network Management Protocol

SU

TCP

Permits remote monitoring and control of communication devices.

Subscriber Unit

This refers to the DART as a component in the CDPD network

Transmission Control Protocol.

	A guaranteed packet delivery Internet protocol that is
	built on (uses) Internet Protocol (IP) as a base. Often
	referred to as TCP/IP
TEI	Temporary Equipment Identifier

TNC

TXD

A data link layer frame address that identifies a specific M-ES as the source or destination.

An RF connector type commonly used with the coaxial cables on cellular antennas

Transmitted Data. One of the RS-232 data lines

PN1197-00 Revision 1.0 Glossary-7