Motorola MC21XX SERIES User Manual page 106

Glossary - 4 MC21XX Series User Guide
Element. Generic term for a bar or space.
EMDK. Enterprise Mobility Developer's Kit.
Encoded Area. Total linear dimension occupied by all characters of a code pattern, including start/stop characters and
data.
ESD. Electro-Static Discharge
ESN. 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.
Ethernet. Ethernet communication port. Allows a wired interface to a radio network.
F
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.
G
Gateway Address. An IP address for a network gateway or router. A MC21XX 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 terminal 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.
H
Hard Reset. See Cold Boot.
Hz. Hertz; A unit of frequency equal to one cycle per second.
Host Computer. A computer that serves other terminals in a network, providing such services as computation,
database access, supervisory programs and network control.
I
IDE. Intelligent drive electronics. Refers to the solid-state hard drive type.
IEC. International Electrotechnical Commission. This international agency regulates laser safety by specifying various
laser operation classes based on power output during operation.