Symbol Technologies MC50 - Manual (Page 86)

MC50 User Guide GL-6
ESS_ID Extended Service Set Identifier, defines the coverage area. Prior to
the release of the 802.11 specification the ESS_ID was called the
Net_ID or Network Identifier. For mobile computers using
Spectrum24 radios with the 802.11 protocol, an ESS_ID allows
facilities to limit which Access Points a mobile computer can
communicate with. It is set on the Network tab of the Control Panel.
The mobile computer can only communicate with Spectrum24
Access Points that have matching ESS_IDs.
Ethernet Ethernet communication port. Allows a wired interface to a radio
network.
Flash Disk An additional megabyte of non-volatile memory for storing
application and configuration files.
Flash Memory Flash memory is nonvolatile, semi-permanent storage that can be
electronically erased in the circuit and reprogrammed. Series 9000
mobile computers use Flash memory to store the operating system
(ROM-DOS), the terminal emulators, and the Citrix ICA Client for
DOS.
File Transfer Protocol (FTP) A TCP/IP application protocol governing file transfer via network or
telephone lines. See TCP/IP.
Frequency Hopping The use of a random sequence of frequency channels to achieve
spread spectrum compliance. Stations that use frequency hopping
change their communications frequency at regular intervals. A
hopping sequence determines the pattern at which frequencies are
changed. Messages take place within a hop. See Hopping
Sequence and Spread Spectrum.
FTP See File Transfer Protocol.
Flash Memory Flash memory is responsible for storing the system firmware and is
non-volatile. If the system power is interrupted the data is not be
lost.
Gateway Address An IP address for a network gateway or router. A mobile computer
may be part of a subnet as specified by its IP address and Netmask.
It can send packets directly to any node on the same subnet. If the
destination node is on a different subnet, then the mobile computer
sends the packet to the gateway first. The gateway determines
how to route the packet to the destination subnet. This field is an
option used by networks that require gateways.
Hard Reset See Cold Boot.
Hopping Sequence A set of random frequencies designed to minimize interference
with other sets of random frequencies. A hopping sequence
determines the pattern with which a station that uses frequency
hopping changes its communications frequency. See Frequency
Hopping.
Hz Hertz; A unit of frequency equal to one cycle per second.
Host Computer A computer that serves other computers in a network, providing
such services as computation, database access, supervisory
programs and network control.
IDE Intelligent drive electronics. Refers to the solid-state hard drive
type.