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WIRE - GENERATES CONSTANT VOLTAGE

SYMBOL COMPONENT NAME MEANING

ELECTRICAL WIRE CONDUCTOR OFELECTRICAL CURRENT

CONNECTED WIRES CONNECTED CROSSING

NOT CONNECTEDWIRES

WIRES ARE NOTCONNECTED

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DIP SWITCH DIP SWITCH ISUSED FORONBOARD

CONFIGURATION

SPST RELAY RELAY

OPEN/CLOSECONNECTION BY

ANELECTROMAGNET

SPDT RELAY RELAY

OPEN/CLOSECONNECTION BY

ANELECTROMAGNET

JUMPER CLOSE

CONNECTION BYJUMPERINSERTION ON

PINS

SOLDER BRIDGE SOLDER TO CLOSECONNECTION

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GROUND - ELECTRICAL CONNECTION OF A CIRCUIT ORCONDUCTOR TO THE EARTH

SYMBOL COMPONENTNAME

MEANING IMAGE

EARTH GROUND USED FOR ZEROPOTENTIAL

REFERENCE ANDELECTRICAL

SHOCKPROTECTION

DIGITAL /

COMMONGROUND

CONNECTED TO

THE CHASSIS OFTHE CIRCUIT

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RESISTOR - REDUCES THE CURRENT FLOW

SYMBOL COMPONENTNAME

MEANING IMAGE

RESISTOR (IEEE) REDUCES THECURRENT FLOW

RESISTOR (IEC) REDUCES THECURRENT FLOW

TEMPERATURECONTROLLED

RESISTANCECHANGE WITH

THETEMPEFRATURE

T

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POTENTIOMETER(IEC)

ADJUSTABLERESISTOR HAS !

TERMINALS

POTENTIOMETER(IEEE)

ADJUSTABLERESISTOR HAS !

TERMINALS

VARIABLERESIST"R /

RHEOSTAT (IEC)

ADJUSTABLERESISTOR HAS #

TERMINALS

VARIABLERESISTOR /

RHEOSTAT (IEEE)

ADJUSTABLERESISTOR HAS #

TERMINALS

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CAPASITOR - STORE ELECTRIC CHARGE

SYMBOL COMPONENTNAME

MEANING IMAGE

CAPACITOR ACTS AS SHORTCIRCUIT WITH ACAND OPENCIRCUIT WITH DC

POLARIZEDCAPACITOR

ELECTROLYTICCAPACITOR

VARIABLECAPACITOR

ADJUSTABLECAPACITANCE

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POWER SUPPLY - CONVER AC TO DC

SYMBOL COMPONENT NAME IMAGE

BATTERY

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LAMP / LIGHT BULB GENERATES LIGHT WHEN CURRENTFLOW THROUGH

SYMBOL IMAGE

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DIODE ALLOWS CURRENT FLOW IN ONE DIRECTION ONLY

SYMBOL COMPONENTNAME

MEANING IMAGE

DIODE ALLOWS CURRENTFLOW IN ONE

DIRECTION ONLY

ZENER DIODE ALLOWS CURRENTFLOW IN ONE

DIRECTION$ BUT ALSOCAN FLOW IN THE

REVERSE DIRECTIONWHEN ABOVE

BREAKDOWN VOLTAGE

LIGHT EMITTINGDIODE (LED)

EMITS LIGHT WHENCURRENT FLOWS

THROUGH

VARISTOR DIODE PROVIDE PROTECTIONTO CIRCUITS FROM

OVER CURRENT

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TRANSISTOR - USED TO AMPLIFY AND SWITCH ELECTRONICSIGNALS AND ELECTRICAL POWER

SYMBOL COMPONENT

NAME

MEANING IMAGE

NPN BIPOLARTRANSISTOR

ALLOWSCURRENT FLOW

WHEN HIGHPOTENTIAL ATBASE (MIDDLE)

PNP BIPOLARTRANSISTOR

ALLOWSCURRENT FLOW

WHEN LOWPOTENTIAL ATBASE (MIDDLE)

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MISCELLANEOUS

SYMBOL COMPONENTNAME

FUNCTION IMAGE

MOTOR CONVERTELECTRICITY

INTO ANGULAR

MOTIONTRANSFORMER CHANGE AC

VOLTAGE FROMHIGH TO LOW

OR LOW TOHIGH

ELECTRIC BELL RINGS WHENACTIVATED

BUZZER PRODUCEBUZZING SOUND

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FUSE PROTECTCIRCUIT FROM

HIGH CURRENTS

BUS DISTRIBUTESCURRENT TOTHE WHOLE

CIRCUIT

SPEAKER / HORN CONVERTS

ELECTRICALSIGNAL TO

SOUND WAVES

MICROPHONE CONVERTSSOUND WAVES

TO ELECTRICALSIGNAL

OPERATIONALAMPLIFIER

AMPLIFY INPUTSIGNAL

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ANTENNA TRANSMITS & RECEIVES RADIO WAVES

SYMBOL COMPONENTNAME

MEANING IMAGE

ANTENNA /AERIAL

-

DIPOLEANTENNA

TWO WIRESSIMPLE

ANTENNA

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SHUNT

SPLICE FORM A STOPPERAT THE END OF ALINEJOINING TWOROPES TOGETHER

TERMINAL STRIP INSULATED BARTHAT CONTAINS ASET OF SCREWS TOWHICH WIRE ARE

ATTACHED

FLAG NOTE SUPPLIED WIRELEADS AND/OR

E%UIPMENT

MAGNETO PRODUCE PERIODICPULSES OF

ALTERNATINGCURRENT

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THANK YOU