What is the minimum number of wires required for sending data over a serial communications links?
What is the minimum number of wires required for sending data over a serial communications links?
The correct option is B 2
2 is the minimum number of wires required for
sending data over a serial communications links.
Maximum cable lengths. Cable length is one of the
most discussed items in RS232 world. The standard has a clear answer, the
maximum cable length is 50 feet, or the cable length equal to a capacitance of
2500 pF. The latter rule is often forgotten.
In data transmission, parallel communication is a
method of conveying multiple binary digits (bits) simultaneously. It contrasts
with serial communication, which conveys only a single bit at a time; this
distinction is one way of characterizing a communications link.
Two of the oldest serial interfaces are RS232 and
RS485. Both RS232 and RS485 are widely used in many applications. ... RS-485
was made to address the multi-drop limitation of RS-422, allowing up to 32
devices to communicate through the same data line.
2 is the minimum number of wires required for sending data over a serial communications links.
Maximum cable lengths. Cable length is one of the most discussed items in RS232 world. The standard has a clear answer, the maximum cable length is 50 feet, or the cable length equal to a capacitance of 2500 pF. The latter rule is often forgotten.
In data transmission, parallel communication is a method of conveying multiple binary digits (bits) simultaneously. It contrasts with serial communication, which conveys only a single bit at a time; this distinction is one way of characterizing a communications link.
Two of the oldest serial interfaces are RS232 and RS485. Both RS232 and RS485 are widely used in many applications. ... RS-485 was made to address the multi-drop limitation of RS-422, allowing up to 32 devices to communicate through the same data line.
