When using a straight through cable for networking, only 3 pairs are used.
4 pairs of wires.
Four pairs. Only one pair required for normal LAN operation though.
Cat-5 has 4 pairs and 8 wires
Cat-5 has 4 pairs and 8 wires
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A category 6 cable contains 4 pairs of wires, for a total of 8. The pairs are twisted together along the length of the cable, which helps to reduce noise and preserve the signal.
If you're referring to the Cartesian coordinate system, then it's 2 ordered pairs e.g. a straight line could be drawn between pairs (3, 5) and (2, 3) etc.
The coordinates of the corners of a polygon, the locus of curves, and many many other possibilities. In fact, ordered pairs that form a line are the exceptions.
In order to draw a straight line, two unique ordered pairs are needed. This is because two unique points determine a line and an ordered pair represents a point.
When connecting Cisco switches, you should use a straight-through Ethernet cable for connecting devices of different types, such as switch to router. For connecting similar devices, like switch to switch, a crossover Ethernet cable is typically used. However, many modern switches can auto-sense and adjust, allowing for the use of straight-through cables in both scenarios. Always refer to the specific switch model's documentation for compatibility.
In a standard LAN cross-connect, there are typically four pairs of wires in a cable, totaling eight individual wires. These pairs are usually twisted together to reduce electromagnetic interference and crosstalk. Common cable types used for this purpose include Category 5e, Category 6, and Category 6a cables. Each pair is used for data transmission in Ethernet networks.