Standard Cabling ISO/IEC 11801

An Overview of Cabling Standards

ANSI/TIA/EIA-568-B AND ISO/IEC 11801:2002 2ND ED. 2002-09, IEC 61156-5, -6

The latest edition of the Commercial Building Telecommunications Cabling Standard is ANSI/TIA/EIA-568-B. The Telecommunications Industry Association (TIA) TR-42 Technical Committee has broken the standard into a series of documents known as B.1, B.2 and B.3. The '568-B.1 document contains the information needed for designing, installing, and field testing a generic structured cabling system. The '568-B.2 and '568-B.3 documents contain manufacturing and component reliability test specifications for cable, patch cords and connecting hardware. The '568-B.3 document was published in April 2000 and is applicable to optical fiber components. The '568-B.2 document specifies the electrical and mechanical requirements of unshielded (UTP) and screened (F/UTP) balanced twisted-pair components. The standard addresses requirements for category 3 and 5e cabling and component requirements. Both '568-B.1 and '568-B.2 were published in June 2001.
Also, the International Organization for Standardization (ISO) JTC1 SC 25/WG 3 Working Group on telecommunications cabling has published the second edition of the ISO/IEC 11801 standard. The standard addresses class E and F cabling and category 6 and 7 connecting hardware and cables. Items of interest unique to the '11801 standard are the work area interface for category 7 and coupling attenuation for copper systems. In optical fiber, the document has standardized on three classes of optical fiber cabling to service existing and future networking applications for channel lengths of 300m, 500m and 2000m. For component requirements, '11801:2002 references the IEC cable specifications for horizontal (IEC 61156-5) and work area (IEC 61156-6). With a few exceptions detail in the cable clause of '11801:2002, all requirements for cable can be found in these two specifications. '11801:2002 references the IEC 60603-7-X series (x = 1, 2, . . . 7) for the RJ-45 style outlets and IEC 61076-3-104 for the new RJ-45 outlets (TERA® type connectors).
ISO/IEC 15018 edition 1, cabling for the home references the same IEC cables and connectors as '11801:2002 for information and communication technology (ICT) applications. For broadcast communications technology, it references the IEC 1200 MHz cable specifications, IEC 61196-7 and for the primary outlet IEC 61076-3-104.
Following are highlights of the '568-B series standard which has incorporated Telecommunications System Bulletins (TSB's) TSB 67, TSB 72, TSB 75, TSB 95, Addendum's TIA/EIA-568-A-1, 'A-2, 'A-3, 'A-4, and 'A-5 and TIA/EIA/IS-729. For clarity and consistency, '568-B based terminology is used in the following overview with notes on differences in terminology and technical requirements with respect to '11801:2002.

Addenda to The '568B Standard

TIA/EIA-568-B.1-1 (Addendum 1)
Minimum 4-pair UTP and 4-pair ScTP patch cable bend radius
TIA/EIA-568-B.1-2 (Addendum 2)
Grounding and bonding specifications for screened balanced twisted-pair horizontal cabling
TIA/EIA-568-B.1-3 (Addendum 3)
Supportable distances and channel attenuation for optical fiber applications by fiber type
TIA/EIA-568-B.1-4 (Addendum 4)
Recognition of category 6 and 850 nm laser-optimized 50/125µm multimode optical fiber cabling
TIA/EIA-568-B.1-5 (Addendum 5)
Telecommunications cabling for telecommunications enclosures
TIA/EIA-568-B.2-1 (Addendum 1)
Transmission performance specifications for 4-pair 100 . category 6 cabling
TIA/EIA-568-B.2-2 (Addendum 2)
The purpose of this addendum is to release sub-clauses,, and 5.4.3 of TIA/EIA-568-B.2
TIA/EIA-568-B.2-3 (Addendum 3)
Additional considerations for insertion loss and return loss pass/fail determination
TIA/EIA-568-B.2-4 (Addendum 4)
Solderless connection reliability requirements for copper connecting hardware
TIA/EIA-568-B.2-5 (Addendum 5)
Corrections to TIA/EIA-568-B.2
TIA/EIA-568-B.2-6 (Addendum 6)
Category 6 related component test procedures
TIA/EIA-568-B.3-1 (Addendum 1)
Additional transmission testing performance specifications for 50/125µm optics fiber cables.


  1. Centralized optical fiber cabling (Normative).
  2. Shared sheath guidelines for multi-pair UTP cables (Informative).
  3. Other cable specifications (Informative)
  4. Category 5 cabling transmissions (Informative).
  5. Optical fiber applications support information (Informative).
  6. Bibliography (Informative).


  1. Reliability testing of connecting hardware used for 100 . balanced twisted-pair cabling (Normative).
  2. Test equipment overview (Normative).
  3. Testing of cable (Normative).
  4. Testing of connecting hardware (Normative).
  5. Testing of cabling (Normative).
  6. Testing of patch cords (Normative).
  7. Multi-port measurement considerations (Normative).
  8. Measurement accuracy (Informative).
  9. Test instruments (Normative).
  10. Comparison measure procedures (Normative).
  11. 100 . screened twisted-pair (F/UTP) cabling (Normative).
  12. Derivation of propagation delay from insertion loss equation (Informative).
  13. 150 . shielded twisted-pair cabling (Normative).
  14. Category 5 cabling (Informative).
  15. Development of channel and component return loss limits (Informative).
  16. Bibliography (Informative).


  1. Optical fiber connector performance specifications (Normative).
  2. Bibliography and references (Informative).

Siemon's Preferred Cable Terminology

Siemon UTP (Categories 3, 5e, and 6):
Figure 1
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UTP cable constructions feature unshielded twisted-pairs enclosed within an overall thermoplastic jacket as shown in figure 1. UTP cables are compatible with Siemon MAX®, CT®, HD®, S210®, S110®, and S66™ product lines.
Siemon F/UTP (Categories 5e and 6):
Figure 2
Enlarge this image
F/UTP cable constructions feature unshielded twisted-pairs surrounded by an overall conductive mylar-backed aluminum foil shield and enclosed within an overall thermoplastic jacket as shown in figure 2. F/UTP cables are compatible with Siemon screened MAX® and screened HD5® product lines. TIA and legacy Siemon materials referred to this cable type as "ScTP" or "FTP".
Siemon S/FTP (Categories 6 and 7):
Figure 3
Enlarge this image
S/FTP cable constructions feature individually foil-shielded twistedpairs surrounded by an overall braid and enclosed within an overall thermoplastic jacket as shown in figure 3. S/FTP cables are compatible with Siemon TERA® and screened MAX® product lines. Legacy Siemon materials referred to this cable type as "PiMF", "STP", or "SSTP".

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