GRAPHIC SYMBOLS USED ON SCHEMATIC AND BLOCK DIAGRAMS

B A S I C C O M P O N E N T S Y M B O L S ( C O N T I N U E D )

-c-c--INDICATES A PLUG-IN CONNECTION (F) TO (M)

CONNECTION SYMBOL INDICATING

PLUG (MOVABLE)

CONNECTION SYMBOL INDICATING

JACK (STATIONARY)

TPl

TEST POINT (TERMINAL PROVIDED FOR TEST

48 PROBE CONNECTION)

A MEASUREMENT POINT (USED

TO INDICATE A CONVENIENT POINT FOR MEASUREMENT.

BNO TERMINAL PROVIDED FOR TEST PROBE)

MULTI-CONDUCTOR CABLE

OR BUS

INDICATES A SINGLE PIN

OF A PC BOARD EDGE

ICONNECTOR

TOROIDAL TRANSFORMER

J-5LIMITER

F--TENCLOSES REAR PANEL

L--JDESIGNATION

I

:

/h OR 6

PD

P

INDICATES WIRE OR

CABLE COLOR CODE

(COLOR SAME AS RESISTOR

COLOR CODE. FIRST NUMBER INDICATES BASE COLOR, SECOND AND THIRD NUMBERS INDICATE COLORED STRIPES)

EARTH GROUND SYMBOL

USUALLY INSTRUMENT CHASSIS GROUND (MAY BE ACCOMPANIED BY A

NUMBER OR LETTER TO SPECIFY A PARTICULAR GROUND)

SCREWDRIVER ADJUSTMENT

FRONT- OR REAR-PANEL CONTROL

COMMONLY USED ASSEMBLY AND CIRCUIT SYMBOLS

 

OSCILLATOR,

RPG

PHASE-FREQUENCY

 

 

 

 

 

 

(ROTARY PULSE

 

 

 

 

BAND

REJECT

 

 

DETECTOR

 

LOW

PASS

0 GENERATOR)

 

 

FILTER

 

 

 

 

 

 

FILTER

B

FAN MOTOR

 

SERVICE

 

 

 

 

 

 

 

DETECTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

HIGH

PASS

ATTENUATOR

 

 

 

 

 

 

 

 

FILTER

(OR

PAD)

 

 

 

AMPLIFIER

 

 

 

 

MIXER

 

 

 

 

 

 

 

63

 

BUFFER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VARIABLE

 

 

 

 

 

 

 

 

 

 

 

ATTENUATOR

 

 

 

 

 

 

 

 

BANDPASS

fi!+

 

S

 

 

OP AMP

 

 

 

SAMPLER

 

 

FILTER

 

 

 

 

 

 

 

 

TRANSMISSION

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TL- LINE

 

 

 

 

 

BASIC LOGIC SYMBOLS

 

 

 

 

AMPLIFIER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BUFFER

 

3B;;;zE

>

AND

GATE

a NAND

GATE

 

INVtHltH

 

SCHM

 

TT

%

OR

GATE B NOR GATE

-

BUFFER

l7

I

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-D-

TRlGGER

-a

;F;;;TE

SAFETY SYMBOL

 

 

 

 

 

 

 

 

 

 

 

,I

3-STATE

Q

OPEN-COLLECTOR OUTPUTS ARE

 

 

 

 

 

INDICATED

BY THE PRESENCE

OF

 

DANGEROUS L‘OLTAGES

PRESENT

 

 

-

INVERTER

 

u-

THE OPEN-COLLECTOR SYMBOL:G

 

BE EXTREMELY CAREFUL!

 

RllFFFR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 5. Graphic Symbols (2 of 2)

12 General Information