Which of the following communication interfaces commonly utilizes balanced transmission mode in SCADA systems?a.RS-485b.RS-232c.Ethernetd.USB
Question
Which of the following communication interfaces commonly utilizes balanced transmission mode in SCADA systems?
a. RS-485
b. RS-232
c. Ethernet
d. USB
Solution
The communication interface that commonly utilizes balanced transmission mode in SCADA systems is a. RS-485.
Here's why:
RS-485 is a standard defining the electrical characteristics of drivers and receivers for use in serial communications systems. It allows multiple devices to communicate with each other over long distances and is known for its ability to provide balanced data transmission. This means that the data wires carry equal and opposite signals which helps to increase the immunity to noise and interference.
On the other hand, RS-232, Ethernet, and USB do not typically use balanced transmission mode. RS-232 is an unbalanced transmission method, and while Ethernet and USB can
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