1. Which of the following categories of EIA-232 signals uses negative logic?
a. Data Signals
b. Timing Signals.
c. Control Signals
d. Ground Signal.
2. Which digital-to-digital encoding signal has zero DC value for all kinds of data?
a.NRZ-L
b.AMI
c.Manchester
d.NRZ-I
3.For the same data rate, the spectrum of ___________ code is the biggest.
a.NRZ-L
b.Manchester
c.NRZ-I
d.Bipolar AMI
a. Data Signals
b. Timing Signals.
c. Control Signals
d. Ground Signal.
2. Which digital-to-digital encoding signal has zero DC value for all kinds of data?
a.NRZ-L
b.AMI
c.Manchester
d.NRZ-I
3.For the same data rate, the spectrum of ___________ code is the biggest.
a.NRZ-L
b.Manchester
c.NRZ-I
d.Bipolar AMI