Tianjie/Shielding Terms for twisted pair cable Factory Suppliers Manufacturers Quotes

Tianjie/Shielding Terms for twisted pair cable

Individual shield (U/FTP)

Individual shielding with aluminum foil for each twisted pair or quad. Common names: pair in metal foil, shielded twisted pair, screened twisted pair. This type of shielding protects cable from external EMI entering or exiting the cable and also protects neighboring pairs from crosstalk.

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Overall shield (F/UTP, S/UTP, and SF/UTP)

Overall foil, braided shield or braiding with foil across all of the pairs within the 100 ohm twisted pair cable. Common names: foiled twisted pair, shielded twisted pair, screened twisted pair. This type of shielding helps prevent EMI from entering or exiting the cable.

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Individual and overall shield (F/FTP, S/FTP, and SF/FTP)

Individual shielding using foil between the twisted pair sets, and also an outer foil or braided shielding. Common names: fully shielded twisted pair, screened foiled twisted pair, shielded foiled twisted pair, screened shielded twisted pair, shielded screened twisted pair. This type of shielding helps prevent EMI from entering or exiting the cable and also protects neighboring pairs from crosstalk.

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Common industry nomenclature for cable construction

Industry abbreviations

ISO/IEC 11801 name

Cable shielding

Pair shielding

UTP

U/UTP

None

None

STP, ScTP, PiMF

U/FTP

None

Foil

FTP, STP, ScTP

F/UTP

Foil

None

STP, ScTP

S/UTP

Braiding

None

SFTP, S-FTP, STP

SF/UTP

Braiding and Foil

None

FFTP

F/FTP

Foil

Foil

SSTP, SFTP, STP PiMF

S/FTP

Braiding

Foil

SSTP, SFTP

SF/FTP

Braiding and Foil

Foil


The code before the slash designates the shielding for the cable itself, while the code after the slash determines the shielding for the individual pairs:

U = unshielded

F = foil shielding

S = braided shielding (outer layer only)

TP = twisted pair

TQ = twisted pair, individual shielding in quads



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