Chapter 15, Problem 28RTB

Explanation of Solution

Given:

Data is received or sent on a 100BaseT network.

To find: The colors of the two pairs wires that may be used to send/receive data on a 100BaseT network using any of the two standards.

Solution:

For wiring twisted pair cables, two standards are established: T568A and T568B. In the T568A standard, the green pair is connected to pins 1 and 2, and the orange pair is connected to pins 3 and 6.

The following table shows the pairs of wiring in order to send and/or receive data on a 100BaseT network.

$\begin{array}{|cccc|}\hline \text{Pin}& \text{100BaseT purpose}& \text{T568A}& \text{T568B}\\ 1& \\ \hline\end{array}$