Glossary - 7
N
Nominal.
The exact (or ideal) intended value for a specified parameter. Tolerances are specified as positive and negative
deviations from this value.
Nominal Size.
Standard size for a bar code symbol. Most UPC/EAN codes are used over a range of magnifications (e.g.,
from 0.80 to 2.00 of nominal).
NVM.
Non-Volatile Memory.
O
ODI.
See
Open Data-Link Interface
.
Open Data-Link Interface (ODI).
Novell’s driver specification for an interface between network hardware and higher-level
protocols. It supports multiple protocols on a single NIC (Network Interface Controller). It is capable of understanding
and translating any network information or request sent by any other ODI-compatible protocol into something a NetWare
client can understand and process.
P
Parameter.
A variable that can have different values assigned to it.
Percent Decode.
The average probability that a single scan of a bar code would result in a successful decode. In a
well-designed bar code scanning system, that probability should approach near 100%.
Print Contrast Signal (PCS).
Measurement of the contrast (brightness difference) between the bars and spaces of a
symbol. A minimum PCS value is needed for a bar code symbol to be scannable. PCS = (RL - RD) / RL, where RL is
the reflectance factor of the background and RD the reflectance factor of the dark bars.
Programming Mode.
The state in which a scanner is configured for parameter values. See
Scanning Mode
.
Q
Quiet Zone.
A clear space, containing no dark marks, which precedes the start character of a bar code symbol and follows
the stop character.
QWERTY.
A standard keyboard commonly used on North American and some European PC keyboards. “QWERTY” refers
to the arrangement of keys on the left side of the third row of keys.
Summary of Contents for MOTOTRBO MC1000
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