Symbol MC9000-K/S Reference Manual page 722

GL-8 MC9000-K/S with Windows
ESN
ESS_ID
Ethernet
Flash Disk
Flash Memory
File Transfer Protocol (FTP)
Frequency Hopping
FTP
Flash Memory
®
Mobile 2003 Software for Pocket PCs PRG
Electronic Serial Number. The unique hardware number
associated with a cellular device, which is transmitted to
the system when the device communicates with the
cellular system.
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 communication port. Allows a wired interface to a
radio network.
An additional megabyte of non-volatile memory for storing
application and configuration files.
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
mobile computer emulators, and the Citrix ICA Client for
DOS.
A TCP/IP application protocol governing file transfer via
network or telephone lines. See TCP/IP.
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.
See File Transfer Protocol.
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.