SCANTEAM 3700 Wedge Technical Manual
Digital- (used in contrast to Analog) describes a coded squarewave signal
(processed from an analog signal) which is utilized by decoding circuitry. Digital
bar code is generally square wave pulses (0 to 5 volts) with widths which depict the
bar and space widths in the code.
DIP- is an acronym for dual in-line pins," a type of integrated circuit package.
DIP components are used with through-hole or viahole circuit board technology.
Exit Window- is the optical opening through which the laser beam, or other
method of illumination, leaves the scanner.
Far Distance- is the farthest distance that a scanner can accurately digitize a
given bar code.
Field Width- is the window width. Refers to the greatest width of bar code
label that can be successfully interpreted.
Firmware- is a term for software which is permanently designed into a data
system device (such as a bar code decoding algorithm) to provide special programs
and service routines.
Focal Distance- is the distance of highest resolution in front of the scanner
window.
Host Computer- refers to the data system's controlling processor which
interfaces with the decoder and other system elements to receive their data
outputs and command their functions.
Interleaved 2 of 5 Check Digit Included- is a decoder option. When enabled
with Interleaved 2 of 5 check digit required, the check digit will be confirmed and
included in the data message.
Interleaved 2 of 5 Check Digit Required- is a decoder option. When
enabled, Interleaved 2 of 5's checksum will be calculated and confirmed for a valid
read.
Laser Enable- is a scanner input signal that controls the flow of power to the
scanner. Usually this signal will control all the scanning functions in the scanner.
LED- is an acronym for light emitting diode."
Marker Beam- refers to a visual indicator that an infrared laser beam is
present. The marker beam is an aid to pointing a hand-held or set up a machine
mount scanner. This beam is not necessary for the optical performance of the
laser scanner.
Message Length- refers to the number of characters in the data message
decoded from a bar code label.
