twisted pair

(redirected from Twisted pair cable)
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twisted pair

[′twis·təd ′per]
A cable composed of two small insulated conductors twisted together without a common covering. Also known as copper pair.

twisted pair

twisted pair
Two insulated electrical conductors, twisted together without a common covering.

twisted pair

A type of cable in which pairs of conductors are twisted together to randomise possible cross-talk from nearby wiring. Inadequate twisting is detectable using modern cable testing instruments.

twisted pair

A thin-diameter wire (22 to 26 gauge) commonly used for telephone and network cabling. The wires are twisted around each other to minimize interference from other twisted pairs in the cable. Alexander Graham Bell invented this and was awarded a patent in 1881. Twisted pairs support less bandwidth than coaxial cable or optical fiber.

Unshielded (UTP) and Shielded (STP)
Twisted pair cables are available unshielded (UTP) or shielded (STP), with UTP being the most common. Shielded twisted pair (STP) is used in noisy environments and protects against electromagnetic interference.

Stranded and Solid
Both UTP and STP come in stranded and solid wire varieties. Stranded is the most common and also very flexible for bending around corners. Solid wire has less attenuation and spans longer distances but is less flexible.

Shielded and Unshielded Twisted Pairs
ScTP (screened twisted pair), also called "foil twisted pair" (FTP), uses one overall shield for more protection than UTP but not as much as STP, which has shields around each wire pair.

   Cable      Band-      Data#  Type       Width      Rate

 1  UTP       Analog voice
 2  UTP                 1 Mbps

 3  UTP/STP   16 MHz,   4 Mbps
 4  UTP/STP   20 MHz,  16 Mbps
 5  UTP/STP  100 MHz, 100 Mbps
 5e UTP/STP  100 MHz,   1 Gbps
 6  UTP/STP  200 MHz,  10 Gbps (<10 m)
 6a UTP/STP  500 MHz,  10 Gbps (>10 m)

 7  STP      600 MHz   10 Gbps
 7a STP     1000 MHz   40 Gbps (<15 m)

The Real Twisted Pair
References in periodicals archive ?
3bw, IEEE Standard for Ethernet Amendment: Physical Layer Specifications and Management Parameters for 100 Mb/s Operation over a Single Balanced Twisted Pair Cable (100BASE-T1).
Linking the two components is simple requiring just one run of Crestron DM 8G shielded twisted pair cable.
The units can transmit these signals directly over a twisted pair cable (shielded twisted pair cables are recommended).
When in BroadR-Reach mode of operation, the BCM54880 can operate full duplex at either the rate of 10Mbps over one single 500 meter telephone grade twisted pair cable or at a rate of 100Mbps over four pair CAT5 twisted pair wiring.
With up to 256 bearing sensors on a single twisted pair cable, installation is much easier and maintenance free.
The Ethernet buscoupler features flexible connection via a CAT5 twisted pair cable.
The VideoEase VGA Balun allows normally bulky and costly VGA cable to be replaced by four-pair CAT 5 twisted pair cable.
These play havoc with twisted pair cable but are oblivious to fiber optic cable.
teases a detached twisted pair cable that whips wildly like an unmanned fire hose.
Either can be run for much greater distances without amplification than twisted pair cable.
Limited tenders are invited for procurement of cat-6 shilded twisted pair cable (stp)
3 on a 40G BASE-T application over a 2Ghz twisted pair cable.