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Question

Signal voltage ranges for a logic high and for a logic low in RS-232C standard are

a.

Low = 0 volt to 1.8 volt, high = 2.0 volt to 5 volt

b.

Low =-15 volt to –3 vol, high = +3 volt to +15 volt

c.

Low = +3 volt to +15 volt, high = -3 volt to -15 volt

d.

Low = 2 volt to 5.0 volt, high = 0 volt to 1.8 volt

Posted under Microprocessor Basics Microprocessor

Answer: (b).Low =-15 volt to –3 vol, high = +3 volt to +15 volt

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Q. Signal voltage ranges for a logic high and for a logic low in RS-232C standard are
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