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ACP
4-3
4. Reference
UTP cable connection chart
The Unshielded Twisted Pair (UTP) cable is
a sort of the signal line connecting the LAN
environment. Two copper lines insulated for
reducing the electromagnetic induction
between two lines are twisted to form the
twisted pair.
The UTP cable consists of 8 wires, of which four lines (No. 1 and 2 for receiving (Rx) and No. 3 and 6
for transmitting (Tx)) are actually used for the data transmission at the general LAN environment. It
can be largely classified two types according to the method for connecting the line for receiving and
transmitting.
Direct cable
It is also called the 1:1 straight cable used for connecting the other equipment at the network.
Cross cable
It is used for the 1:1 connection between the same equipments at the network.
UTP cable
Twisted
copper line
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