Twisted Pair Cables
A pair of
cables twisted around each other forms a twisted pair cable.
Where are used twisted pair cable
There are two type twisted pair cable
1. UNSHIELDED
TWISTED PAIR (UTP)
2. SHIELDED TWISTED
PAIR (STP)
UTP twiated pair cables
Pair of unshielded wires wound around each other.
Cheapest form of cables available for networking purposes.
Highly used in LAN environments.
Easy to install.
Easily gets affected by EMI and RFI.
STP twisted pair cables
Pair of wires wound around each other is placed inside a protective foil wrap.
Better protection from EMI, RFI, and crosstalk as compared to UTP.
STP is cheaper than fiber optics cable but costlier than UTP.
Character statics of UTP and STP
S.no. |
Particulars |
UTP |
STP |
1. |
Segment length |
100m |
100m |
2. |
Connector |
RJ45,(RJ11 for telephone) |
RJ45,(RJ11 for telephone) |
3. |
Data Transfer Rate |
100 to 1000mbps and more than more |
100 to 1000mbps and more then |
4. |
Protection |
Less than EMI, RFI |
Mopre protect EMI,RFI |
5. |
Bend |
360 degree |
360 degree |
6. |
Signal Method |
Baseband |
Baseband |
7. |
Cost |
Less expensive |
More Expensive |
8. |
Grounding Cable |
1Not Required |
Necessarily Required |
Twisted pair the structure is given by EIA, TIA, and ANSI.
They describe how twisted pair cable are used in our network environment and they give the standard T568.
There are two types of wiring standard of twisted pair cable T568-A and T568-B.
TIA/EIA 568A Wiring |
TIA/EIA 568B Wiring |
||
1 |
White and Green |
1 |
White and Orange |
2 |
Green |
2 |
Orange |
3 |
White and Orange |
3 |
White and Green |
4 |
Blue |
4 |
Blue |
5 |
White and Blue |
5 |
White and Blue |
6 |
Orange |
6 |
Green |
7 |
White
and Brown |
7 |
White and Brown |
8 |
Brown |
8 |
Brown |