Intermec Trakker Antares 2420, User Manual

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TRAKKER Antares 2420 and 2425 Hand-Held Terminal User’s Manual
G-16
NiCad backup battery
The terminal contains a rechargeable NiCad backup battery that is designed to back up
all memory and the real-time clock while you change the lithium-ion main battery pack.
The NiCad battery will provide backup battery power for a maximum of 1 month if a
fully-charged main battery pack is installed, or for a maximum of 3 days if a main
battery pack is not installed.
null modem cable
A cable that connects two computers and allows transmission of data between them
without requiring a modem.
number pad
A set of keys on the terminal that allows you to move the cursor around the screen and to
type numbers and mathematical symbols. The terminal’s number pad is designed to work
like the number pad on a regular PC keyboard.
One-Shot mode
See Scanner mode.
OSI model
Open Systems Interconnection reference model. A model for network communications
consisting of seven layers that describe what happens when computers communicate with
one another. The OSI model was developed by the International Standards Organization
(ISO) to provide worldwide standards for computer communications.
packet
The unit of information that the network uses to communicate. A packet includes a single
network message with its associated header, addressing information, data, and optional
trailer. A packet can also be called a frame or datagram.
parameter
See configuration command.
parity
A system for encoding characters with odd or even bar code patterns. Parity provides a
self-checking feature in bar codes and other data transmission techniques. Even parity
characters have an odd number of binary ones in their structure.
partition
See logical partition.