Standers 580 - Manual (Page 54)

User Guide
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CnS Control and Status—A proprietary protocol for managing
Sierra Wireless devices.
COM The serial communications port of a computer.
directory number See MIN
DNS Domain Name Server—Internet server that supplies the
mapping of domain names to IP addresses.
dormancy The packet data connection has the logical PPP session left
open while the underlying physical link (the radio channel) is
released. When traffic is to resume, a radio channel is re-
aquired and the original PPP session resumes.
DSRDUN Dial-Up Networking—A Windows
®
protocol for connecting a
computer to a server via the telephone network.
E911 Emergency call mode.
ERP Effective Radiated Power—A measure of the RF energy
radiated from an antenna.
ESD Electro-Static Discharge
ESN Electronic Serial Number—The unique serial number
assigned to the modem for cellular network use.
FCC Federal Communications Commission—The U.S. federal
agency that is responsible for interstate and foreign communi-
cations. The FCC regulates commercial and private radio
spectrum management, sets rates for communications services,
determines standards for equipment, and controls broadcast
licensing. Consult
www.fcc.gov .
FER Frame Error Rate - Ratio of data transmitted with errors, to
total data transmitted. Used to determine the quality of a
signal. If the FER is too high, (too many errors,) the connection
may be dropped.
firmware Software stored in ROM or EEPROM; essential programs that
remain even when the system is turned off. Firmware is easier
to change than hardware but more permanent than software
stored on disk.
FSN Factory Serial Number—A tracking number applied by and
for the manufacturer, distinct from the ESN.
GUI Graphical User Interface- Elements of a GUI include such
things as: windows, pull-down menus, buttons, scroll bars,
iconic images, wizards, the mouse, and no doubt many things
that havenʹt been invented yet.
host 1. A computer that uses a modem or a similar device to
answer a calling computer.
2. A source or destination in the communication network.