Philips Speechmike6284 Configuration Manual page 86

IEC (825) Class 2
Intercharacter Gap
Interleaved Bar Code
Interleaved 2 of 5
LASER - Light
Amplifi cation by
Stimulated Emission
of Radiation
Laser Diode
LED Indicator
MIL
Misread (Misdecode)
MSI Plessey
86
base for Class 1 devices is 30,000 seconds where intentional viewing
of laser light is inherent in the design or function of the device.
IEC Class 2 devices may not emit more than 1 milliwatt average
radiant power. For this scan engine, additional software controls
are not necessary. Eye protection for IEC Class 2 devices is normally
afforded by aversion responses, including the blink refl ex.
The space between two adjacent bar code characters in a discrete
code.
A bar code in which characters are paired together, using bars to
represent the fi rst character and the intervening spaces to represent
the second.
A binary bar code symbology representing character pairs in groups
of fi ve bars and fi ve interleaved spaces. Interleaving provides for
greater information density. The location of wide elements (bar/
spaces) within each group determines which characters are encoded.
This continuous code type uses no intercharacter spaces. Only
numeric (0 to 9) and
START/STOP characters may be encoded.
The laser is an intense light source. Light from a laser is all the same
frequency, unlike the output of an incandescent bulb. Laser light is
typically coherent and has a high energy density.
A gallium-arsenide semiconductor type of laser connected to a
power source to generate a laser beam. This laser type is a compact
source of coherent light.
A semiconductor diode (LED - Light Emitting Diode) used as an
indicator, often in digital displays. The semiconductor uses applied
voltage to produce light of a certain frequency determined by the
semiconductor's particular chemical composition.
1 mil = 1 thousandth of an inch.
A condition which occurs when the data output of a reader or
interface controller does not agree with the data encoded within a
bar code symbol.
A numeric-only bar code type. It can accept a variable number of
digits up to 13. MSI Plessey consists of four bars and four adjacent
spaces.