22 Smartec HSA
GLOSSARY OF TERMS
Bluetooth Module: A short-range wireless technology standard that is used for exchanging
data between fi xed and mobile devices over short distances using UHF
radio waves that is It is mainly used as an alternative to wire connections
to exchange fi les between nearby portable devices.
Bus Bar: In electrical power distribution, a bus bar is a metallic strip or bar, typically
housed inside a busway enclosure for local high current power distribution.
CAN: Control Area Network, a communication protocol for active components in a system.
Capacitor: A device for storing electrical energy consisting of two conductors in close
proximity and insulated from each other.
Capacitor Discharge: A dissipation of stored energy within a capacitor.
Continuity: Is an uninterrupted path from point A to point B.
Contactor: An electromagnetic switch device (a relay) used for switching an electrical circuit.
DC: Direct current.
Derate: Reducing the power rating of a component or device.
Digital Display: LCD dash display that communicates system status from the traction
controller to the operator.
DMM: Digital Multi-Meter; combination ohm, voltage and current meter.
Drive Motor: The electric motor that powers the gear case.
Electric Current: Is the rate of charge fl ow past a given point in an electric circuit measured
in amperes.
Electric Short: A low resistance connection between two points in an electrical circuit. The
current fl ows through the area of low resistance, bypassing the intended
current fl ow in the circuit.
Ground: An electrical reference point that connects to the earth.
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