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Glossary
14 LED
an acronym for Light Emitting Diode. An LED is Semiconductor Device which turned
on, emits a signal output in the visible light range. Available in a variety of colors,
LEDs are cost effective and are commonly used as Indicator Lights in a variety of
equipment devices. LEDs are also available in the invisible light range (i.e., ultraviolet,
near-infrared etc.) , making then useful as operational indicators for a variety of elec-
tronic equipment and applications, such as Banknote Validation Circuit in the Validator
Unit... 6-13
15 Limited Power Source
an electronic circuit designed to prevent damage to a Power Supply in the event a short
circuit occurs... 1-4
16 Optical Sensor
a Photo Sensitive Device and LED combination which generates a signal of varying
amplitude in response to changes or blockage of the amount of light striking the sensor
surface. Optical Sensors are well suited for detecting timing and movement events... 1-
6
17 Photo-Coupler Isolation
a method of increasing safety to both the equipment and personnel by isolating and
routing transmitted data signals via Light Emitting Diode (LED) and Photosensitive
Transistor combination circuit in various electronic equipment devices... 1-6
18 Pictograph
small internationally recognized safety and attention symbols placed to the left of
Notes, Cautions and Warnings throughout a JCM Maintenance Manual... 1-1
19 Precautions
Special instructions and warnings that appear in JCM Maintenance Manuals. Precau-
tions are intended to promote personal safety and prevent damage to equipment when
working with the applicable JCM Product... 1-3
20 Reference paper
specially coated/colored paper strips which are inserted into a Banknote Validator when
performing Validator Unit Calibration. Reference Paper is used to help set minimum
and maximum threshold detection levels when adjusting the photo-optical Sensors in
the unit for optimum performance... 6-5
21 RS232C
a common Serial Data communication standard Protocol... 1-6
P/N 960-100933R_Rev. 2 {EDP #233449}
DBV™ Series DBV-500 Banknote Acceptor
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© 2020 JAPAN CASH MACHINE CO., LTD.
Section B
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