Shielded twisted pair cable Advantages And Disadvantages

Shielded twisted pair cable:

•Has a shield to protect from EMI

•Good for higher data rates.

STP:

•Type 1: two pair 22-AWG( American wire gauge) = 4.1 mm

•Type 2: four pairs of type 1

•Type 6: two pairs of 26 AWG STP

•Type 7: one pair of 26 AWG STP

•Type 9:  one 26 AWG STP.

Advantages of Twisted pair:

•Low cost

•Easy to install

•High speed

•Effective to EMI

Disadvantages of Twisted pair:

•High attenuation

•Short distance less than 100m

Twisted pair cable:

                            

         

•Two strands of copper wire twisted around each other

•Also covered by plastic insulation

•Easy to install and inexpensive

•Noisy and interrupted by magnetic field

Unshielded Twisted Pair (UTP)

UTP:

•IMPEDENCE=100 OHM

•Voice grade and data grade

•Very low cost

•Two pairs (RJ-11 ) or four pairs (RJ-45)