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MODEL 8559A SERVICE

SYMBOLS USED IN SCHEMATIC AND BLOCK DIAGRAMS

BASIC LOGIC SYMBOLS

Distinctive

Shape Symbols

Output is active when input is active.

SCHMITT

TRIGGER

AND FUNCTION

OR FUNCTION

EXCLUSIVE

FUNCTION

WIRED AND

FUNCTION

WIRED OR

FUNCTION

Output changes abruptly as a fixed

level is crossed by the input signal.

Output is active only when all inputs are

active.

Output is active when one or more in

puts are active.

Output is active when only one input is

active.

Two or more elements are joined

together to achieve the effect of an AND

function.

Two or more elements are joined

together to achieve the effect of an OR

function.

FIGURE

SYMBOLS USED IN SCHEMATIC AND BLOCK DIAGRAMS(3 OF

HP 8559A User Manual

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