Anixter Standards Ref Guide
Anixter Standards Ref Guide
Anixter Standards Ref Guide
Abbreviation References
ANSI American National Standards Institute
ASTM American Society for Testing and Materials
CSA Canadian Standards Association
EIA Electronic Industries Alliance
IEC International Electrotechnical Commission
IEEE Institute of Electrical & Electronics Engineers
ISO International Organization for Standardization
NEC National Electrical Code
NEMA National Electrical Manufacturers Association
NFPA National Fire Protection Association
TIA Telecommunications Industry Association
Cabling Subsystem 1
• Provides a signal path between Distributor A, Distributor B
or Distributor C and an EO (see Figure 1)
• Contains no more than one transition point or consolidation point
• Stipulates that splices shall not be installed as part of a balanced
twisted-pair cabling subsystem and that splitters shall not be installed
as part of optical fiber for Cabling Subsystem 1
VDSL Category 3, 5e, 6, 6A 5,000 (16,404) 1,500 m (4,900 ft.) for 12.9 Mbps;
Channel attenuation (dB) – 11.0 – 6.0 – 6.0 – –
300 m (1,000 ft.) for 52.8 Mbps
Ethernet
Analog Phone Category 3, 5e, 6, 6A 800 (2,625) 100BASE-FX
2,000 2,000 2,000
Supportable distance m (ft.) – – – – –
FAX Category 3, 5e, 6, 6A 5,000 (16,404) (6,850) (6,850) (6,850)
Channel
balanced twisted-pair cable shall be four times the cable diameter.
2.4 – 2.2 – 2.6 – – –
Fibre Channel
1200-MX-SN-I
attenuation (dB)
• The minimum bend radius, under no-load or load, for a multipair
(10512 Mbaud) Supportable 33 82 300
distance m (ft.) (108)
–
(269)
–
(984)
– – –
cable shall follow the manufacturer’s guidelines.
Channel
– – – – – – 6.0 –
Fibre Channel attenuation (dB)
1200-SM-LL-L
Supportable 10,000
Cord Cable
(10512 Mbaud) – – – – – – –
distance m (ft.) (32,810)
• The minimum inside bend radius for a 4-pair balanced twisted-pair
Channel
FDDI PMD
attenuation (dB)
– 11.0 – 6.0 – 6.0 – –
cord cable shall be one times the cord cable diameter.
ANSI X3.166 Supportable 2,000 2,000 2,000
– – – – –
distance m (ft.) (6,560) (6,560) (6,560)
Channel
– – – – – – 10.0 –
attenuation (dB)
FDDI SMF-PMD
ANSI X3.184 Supportable 10,000
– – – – – – –
distance m (ft.) (32,810)
• A voltage greater than 1 volt rms between the cable screen and the Inside Plant Cable with 2 or 4 Fibers 220 N 50 mm 25 mm
Installed in Cabling Subsystem 1 (50 lbf) (2 in.) (1 in.)
ground of the corresponding electrical outlet used to provide power Inside Plant Cable with more than Per manufacturer 20 times the cable 10 times the cable
4 Fibers outside diameter outside diameter
to the equipment indicates improper grounding. Indoor/Outdoor Cable with up to 1335 N 20 times the cable 10 times the cable
12 Fibers (300 lbf) outside diameter outside diameter
Indoor/Outdoor Cable with more 2670 N 20 times the cable 10 times the cable
than 12 Fibers (600 lbf) outside diameter outside diameter
Outside Plant Cable 2670 N 20 times the cable 10 times the cable
(600 lbf) outside diameter outside diameter
Drop Cable Installed by Pulling 1335 N 20 times the cable 10 times the cable
(300 lbf) outside diameter outside diameter
Drop Cable Installed by Directly 440 N 20 times the cable 10 times the cable
Buried, Trenched or Blown into Ducts (100 lbf) outside diameter outside diameter
Purpose and Scope the ANSI/TIA-568-C.1 Standard Telecommunications Cabling System Structure
The ANSI/TIA-568-C.1 standard enables the planning and installation of Establishes a structure for commercial building cabling based on the generic
a structured cabling system with a commercial building and in between cabling system structure in ANSI/TIA-568-C.1
commercial buildings within a campus environment. By supporting Figure 5 shows a model for a commercial building telecommunications
a multiproduct, multimanufacturer environment, the standard supports cabling system. The elements of a commercial building telecommunications
a wide range of different commercial applications (e.g., voice, data, cabling system are:
text, video and images) and building sites with a geographic extent
from 3,000 meters (approximately 10,000 feet) up to 1,000,000 square a) Entrance facilities
meters (approximately 10,000,000 square feet) of office space and with b) Equipment rooms (space typically containing Distributor C,
a population of up to 50,000 users. but may contain Distributor B)
This standard replaces ANSI/TIA/EIA-568-B.1 dated April 12, 2001, and its c) Telecommunications room (space typically containing Distributor A, but
addenda. It incorporates and refines the technical content of ANSI/TIA-B.1-4, may contain Distributor B and Distributor C) or, in some implementations,
Addendum 4, and ANSI/TIA-B.1-5, Addendum 5. telecommunications enclosures (space containing Distributor A)
d) Backbone cabling (Cabling Subsystem 2 and Cabling Subsystem 3)
Significant Technical Changes from the Previous Edition e) Horizontal cabling (Cabling Subsystem 1)
• Incorporates generic nomenclature found in ANSI/TIA-568-C.0,
f) Work area (space containing the equipment outlet).
“Generic Telecommunications Cabling for Customer Premises”
• Includes Category 6 and Category 6A balanced 100-ohm cabling
• Includes 850-nm laser-optimized 50/125 µm multimode
optical fiber cabling
• Includes telecommunications enclosures (TEs)
• Removes 150-ohm STP cabling
• Removes Category 5 cabling
• Removes 50-ohm and 75-ohm coaxial cabling
Section Contents
WA WA WA WA ANSI/TIA-568-C.1
WA TR TE Commercial Building Telecommunications Cabling Standard
HC HC HC Entrance Facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
WA TR Equipment Rooms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
AP Telecommunications Rooms and Telecommunications Enclosures . . . . . . . . . . . . . .20
WA
Centralized Optical Fiber Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
MC IC
EF Backbone Cabling (Cabling Subsystems 2 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
ER ER
WA WA Length and Maximum Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Building 1 Building 2 Recognized Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Horizontal Cabling (Cabling Subsystem 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Legend Recognized Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Access provider AP
Entrance facility EF
Work Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Equipment room ER Open Office Cabling (MUTOA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Main cross-connect (Distributor C) MC
Intermediate cross-connect (Distributor B) IC
Maximum Work Area Cord Lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Telecommunications room TR Consolidation Point (CP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Telecommunications enclosure TE
Horizontal cross-connect (Distributor A) HC
Work area WA
Telecommunications outlet/connector
Entrance Facilities
Cross-connect • Entrance facilities (EFs) contain the cables, network demarcation point(s),
connecting hardware, protection devices and other equipment that
connects to the access provider (AP) or private network cabling.
Cabling Legend
• Entrance facilities include connections between outside plant and inside
Backbone
(Cabling Subsystem 3) building cabling.
Backbone
(Cabling Subsystem 2)
Horizontal
(Cabling Subsystem 1)
Work Telecommunications
area outlet/connectors Equipment Table 6 – Maximum length of work area cord in relation to horizontal cable
cords cords
Laptop computer
Horizontal HC
cables Backbone
Telephone MUTOA cable
WA TR/TE
Legend
Work area WA
Telecommunications room TR
Telecommunications enclosure TE
Horizontal cross-connect HC
Multiuser telecommunications outlet assembly MUTOA
Channel and Permanent Link Test Configurations The permanent link test configuration includes the horizontal distribution cable,
For the purpose of testing twisted-pair cabling systems, the worst-case cabling telecommunications outlet and connector or transition point and one horizontal
channel configuration is assumed to contain a telecommunications outlet and cross-connect component including the mated connections. This is assumed to be
connector, a transition point, 90 meters of twisted-pair cable, a cross-connect the permanent part of a link. The channel is comprised of the permanent link plus
consisting of two blocks or panels and a total of 10 meters of patch cords. cross-connect equipment, user equipment cord and cross-connect patch cable.
The figure below shows the relationship of these components.
Permanent link
Channel under test under test
A B C D E Test F B C F Test
Test Test
equipment equipment equipment equipment
TO CP C1 C2 TO CP C1
Legend Legend
Cables and cords Connecting hardware Cables and cords Connecting hardware
Work area cord A Telecommunications Test equipment cord F Telecommunications
Optional consolidation outlet/connector TO Optional consolidation outlet/connector TO
point cabling B Optional consolidation point cabling B Optional consolidation
Horizontal cabling C point connector CP Horizontal cabling C point connector CP
Patch cord or jumper cable D Horizontal cross-connect Horizontal cross-connect
or interconnect C1, C2 or interconnect C1
Telecommunications room
equipment cord E Maximum length
B+C 90 m (295 ft.)
Maximum length
B+C 90 m (295 ft.)
A+D+E 10 m (32.8 ft.)
Figure 12 – Permanent link test configuration
UTP Patch Cords PSACRF (powersum insertion loss to alien crosstalk ratio far-end) or
Jumper and patch cord maximum length limitations: PSELFEXT (powersum equal-level far-end crosstalk): A computation
of the unwanted signal coupling from multiple transmitters at the near-end
20 m (66 ft.) in main cross-connect
into a neighboring pair measured at the far-end, relative to the received signal
20 m (66 ft.) in intermediate cross-connect level measured on that same pair.
6 m (20 ft.) in telecommunications room
3 m (10 ft.) in the work area Propagation delay: The time needed for the transmission of signal to travel
the length of a single pair.
Definitions of Electrical Parameters Propagation delay skew: The difference between the propagation delay
Return loss: A measure of the degree of impedance mismatch between two of any two pairs within the same cable sheath. Delay skew is caused primarily
impedances. It is the ratio, expressed in decibels, of the amplitude of a reflected because twisted-pair cable is designed to have different twists per foot
wave echo to the amplitude of the main wave at the junction of a transmission (lay lengths). Delay skew could cause data transmitted over one wire pair
line and a terminating impedance. to arrive out of sync with data over another wire pair.
Insertion loss: This term has replaced the term “attenuation” (ATTN). It is ANEXT loss (alien near-end crosstalk): A measure of signal coupling
a measure of the decrease of signal strength as it travels down the media. from a near-end disturbing pair into a disturbed pair of a neighboring cable
NEXT loss (near-end crosstalk): A measure of the unwanted signal coupling or connector pair or part thereof, measured at the near-end.
from a transmitter at the near-end into a neighboring (nonenergized) pair PSANEXT loss (powersum alien near-end crosstalk): A computation
measured at the near-end. of signal coupling from multiple near-end disturbing pairs into a disturbed
PSNEXT loss (powersum near-end crosstalk): A computation of the pair of a neighboring channel, cable or connector pair or part thereof,
unwanted signal coupling from multiple transmitters at the near-end into measured at the near-end.
a neighboring (nonenergized) pair measured at the near-end. AFEXT loss (alien far-end crosstalk): A measure of signal coupling
FEXT loss (far-end crosstalk): A measure of the unwanted signal coupling from a near-end disturbing pair into a disturbed pair of a neighboring
from a transmitter at the near-end into a neighboring pair measured at the far-end. cable or connector pair or part thereof, measured at the far-end.
ACRF (attenuation to crosstalk ratio, far-end) or ELFEXT (equal-level PSAFEXT loss (powersum alien far-end crosstalk): A computation of signal
far-end crosstalk): A measure of the unwanted signal coupling from a coupling from multiple near-end disturbing channel pairs into a disturbed pair
transmitter at the near-end into a neighboring pair measured at the far-end, of a neighboring channel or part thereof, measured at the far-end.
relative to the received signal level measured on that same pair. PSAACRF (powersum insertion loss to alien crosstalk ratio far-end) or
PSFEXT loss (attenuation to crosstalk ratio, far-end): A computation PSAELFEXT (powersum alien equal-level far-end crosstalk): A computation
of the unwanted signal coupling from multiple transmitters at the near-end of signal coupling from multiple pairs of disturbing channels to a disturbed pair
into a neighboring pair measured at the far-end. in another channel measured at the far-end and relative to the received signal
level in the disturbed pair at the far-end.
to a series of categories. The following categories are currently recognized. 1.00 - 17.0 19.0 19.0
4.00 - 17.0 19.0 19.0
Category 3: Cables and connecting hardware with transmission parameters 8.00 - 17.0 19.0 19.0
10.00 - 17.0 19.0 19.0
characterized up to 16 MHz 16.00 - 17.0 18.0 18.0
20.00 - 17.0 17.5 17.5
Category 5e: Cables and connecting hardware with transmission parameters
25.00 - 16.0 17.0 17.0
characterized up to 100 MHz 31.25 - 15.1 16.5 16.5
62.50 - 12.1 14.0 14.0
Category 6: Cables and connecting hardware with transmission parameters 100.00 - 10.0 12.0 12.0
characterized up to 250 MHz 200.00 - - 9.0 9.0
250.00 - - 8.0 8.0
Category 6A: Cables and connecting hardware with transmission parameters 300.00 - - - 7.2
characterized up to 500 MHz. Additionally, requirements for alien crosstalk are 400.00 - - - 6.0
500.00 - - - 6.0
specified in order to support 10GBASE-T transmission systems.
The following tables show the performance limits for channel, permanent link Table 7 – Minimum channel return loss
and twisted-pair cable for Category 3, Category 5e, Category 6 and Category 6A.
Channel Insertion Loss
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
1.00 3.0 2.2 2.1 2.3
4.00 6.5 4.5 4.0 4.2
8.00 9.8 6.3 5.7 5.8
10.00 11.2 7.1 6.3 6.5
16.00 14.9 9.1 8.0 8.2
20.00 - 10.2 9.0 9.2
25.00 - 11.4 10.1 10.2
31.25 - 12.9 11.4 11.5
62.50 - 18.6 16.5 16.4
100.00 - 24.0 21.3 20.9
200.00 - - 31.5 30.1
250.00 - - 35.9 33.9
300.00 - - - 37.4
400.00 - - - 43.7
500.00 - - - 49.3
Channel NEXT Loss (Near-End Crosstalk) Channel ACRF (Attenuation to Crosstalk Ratio, Far-End) or ELFEXT (Equal-Level Far-End Crosstalk)
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB) Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
1.00 39.1 60.0 65.0 65.0 1.00 - 57.4 63.3 63.3
4.00 29.3 53.5 63.0 63.0 4.00 - 45.4 51.2 51.2
8.00 24.3 48.6 58.2 58.2 8.00 - 39.3 45.2 45.2
10.00 22.7 47.0 56.6 56.6 10.00 - 37.4 43.3 43.3
16.00 19.3 43.6 53.2 53.2 16.00 - 33.3 39.2 39.2
20.00 - 42.0 51.6 51.6 20.00 - 31.4 37.2 37.2
25.00 - 40.3 50.0 50.0 25.00 - 29.4 35.3 35.3
31.25 - 38.7 48.4 48.4 31.25 - 27.5 33.4 33.4
62.50 - 33.6 43.4 43.4 62.50 - 21.5 27.3 27.3
100.00 - 30.1 39.9 39.9 100.00 - 17.4 23.3 23.3
200.00 - - 34.8 34.8 200.00 - - 17.2 17.2
250.00 - - 33.1 33.1 250.00 - - 15.3 15.3
300.00 - - - 31.7 300.00 - - - 13.7
400.00 - - - 28.7 400.00 - - - 11.2
500.00 - - - 26.1 500.00 - - - 9.3
Channel PSNEXT Loss (Powersum Near-End Crosstalk) Channel PSACRF (Powersum Insertion Loss to Alien Crosstalk Ratio Far-End)
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB) or PSELFEXT (Powersum Equal-Level Far-End Crosstalk)
1.00 - 57.0 62.0 62.0 Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
4.00 - 50.5 60.5 60.5 1.00 - 54.4 60.3 60.3
8.00 - 45.6 55.6 55.6 4.00 - 42.4 48.2 48.2
10.00 - 44.0 54.0 54.0 8.00 - 36.3 42.2 42.2
16.00 - 40.6 50.6 50.6 10.00 - 34.4 40.3 40.3
20.00 - 39.0 49.0 49.0 16.00 - 30.3 36.2 36.2
25.00 - 37.3 47.3 47.3 20.00 - 28.4 34.2 34.2
31.25 - 35.7 45.7 45.7 25.00 - 26.4 32.3 32.3
62.50 - 30.6 40.6 40.6 31.25 - 24.5 30.4 30.4
100.00 - 27.1 37.1 37.1 62.50 - 18.5 24.3 24.3
200.00 - - 31.9 31.9 100.00 - 14.4 20.3 20.3
250.00 - - 30.2 30.2 200.00 - - 14.2 14.2
300.00 - - - 28.8 250.00 - - 12.3 12.3
400.00 - - - 25.8 300.00 - - - 10.7
500.00 - - - 23.2 400.00 - - - 8.2
500.00 - - - 6.3
Table 10 – Minimum channel PSNEXT loss
Table 12 – Minimum channel PSACRF
Channel Propagation Delay Skew Channel PSAACRF (Powersum Insertion Loss to Alien Crosstalk Ratio Far-End) or PSAELFEXT
Channel propagation delay skew shall be less than 50 ns for all frequencies (Powersum Alien Equal Level Far-End Crosstalk)
from 1 MHz to the upper frequency limit of the Category. For field-testing Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
1.00 - - - 67.0
channels, it is sufficient to test at 10 MHz only and channel propagation delay 4.00 - - - 65.0
skew at 10 MHz shall not exceed 50 ns. 8.00 - - - 58.9
10.00 - - - 57.0
Channel Propagation Delay 16.00 - - - 52.9
Frequency (MHz) Category 3 (ns) Category 5e (ns) Category 6 (ns) Category 6A (ns) 20.00 - - - 51.0
1.00 580 580 580 580 25.00 - - - 49.0
4.00 562 562 562 562 31.25 - - - 47.1
8.00 557 557 557 557 62.50 - - - 47.1
10.00 555 555 555 555 100.00 - - - 37.0
16.00 553 553 553 553 200.00 - - - 31.0
20.00 - 552 552 552 250.00 - - - 29.0
25.00 - 551 551 551 300.00 - - - 27.5
31.25 - 550 550 550 400.00 - - - 25.0
62.50 - 549 549 549 500.00 - - - 23.0
100.00 - 548 548 548
200.00 - - 547 547 Table 15 – Minimum channel PSAACRF loss
250.00 - - 546 546
300.00 - - - 546
400.00 - - - 546 Augmented Category 6 Channel Requirements
500.00 - - - 546 Note: The requirements for ISO (the International Organization for Standardization)
11801 Class EA are more demanding compared to the TIA Augmented Category 6
Table 13 – Maximum channel propagation delay requirements. Anixter’s Infrastructure Solutions Lab tests to the more stringent
ISO 11801 standards.
Channel PSANEXT Loss (Powersum Alien Near-End Crosstalk)
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
1.00 - - - 67.0 ISO Compared to TIA
4.00 - - - 67.0 Characteristics 500 MHz (dB) ISO Class EA TIA Augumented Category 6
8.00 - - - 67.0 PSNEXT Loss 24.8 dB 23.2 dB
10.00 - - - 67.0 NEXT Loss 27.9 dB 26.1 dB
16.00 - - - 67.0 PSANEXT Loss 49.5 dB 49.5 dB
20.00 - - - 67.0 Return Loss 6.0 dB 6.0 dB
25.00 - - - 66.0 Insertion Loss 49.3 dB 49.3 dB
31.25 - - - 65.1 Referred to by IEEE Yes No
62.50 - - - 62.0
100.00 - - - 60.0
Table 16 – ISO versus TIA performance comparison
200.00 - - - 55.5
Note: See the IEEE 802.3an and ISO Class EA section of this book for
250.00 - - - 54.0
300.00 - - - 52.8
more information on 10 Gigabit cabling and protocol methods.
400.00 - - - 51.0
500.00 - - - 49.5
Permanent Link Transmission Performance Permanent Link NEXT Loss (Near-End Crosstalk)
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
The tables below show the requirements intended for performance validation 1.00 40.1 60.0 65.0 65.0
according to the specific cabling Category. 4.00 30.7 54.8 64.1 64.1
8.00 25.9 50.0 59.4 59.4
10.00 24.3 48.5 57.8 57.8
Permanent Link Return Loss 16.00 21.0 45.2 54.6 54.6
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB) 20.00 - 43.7 53.1 53.1
1.00 - 19.0 19.1 19.1
25.00 - 42.1 51.5 51.5
4.00 - 19.0 21.0 21.0
31.25 - 40.5 50.0 50.0
8.00 - 19.0 21.0 21.0
62.50 - 35.7 45.1 45.1
10.00 - 19.0 21.0 21.0
100.00 - 32.3 41.8 41.8
16.00 - 19.0 20.0 20.0
200.00 - - 36.9 36.9
20.00 - 19.0 20.0 20.0
250.00 - - 35.3 35.3
25.00 - 19.0 19.5 19.5
300.00 - - - 34.0
31.25 - 17.1 18.5 18.5
400.00 - - - 29.9
62.50 - 14.1 16.0 16.0
500.00 - - - 26.7
100.00 - 12.0 14.0 14.0
200.00 - - 11.0 11.0 Table 19 – Minimum permanent link NEXT loss
250.00 - - 10.0 10.0
300.00 - - - 9.2
400.00 - - - 8.0
Permanent Link PSNEXT Loss (Powersum Near-End Crosstalk)
500.00 - - - 8.0
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
1.00 - 57.0 62.0 62.0
Table 17 – Minimum permanent link return loss
4.00 - 51.8 61.8 61.8
8.00 - 47.0 57.0 57.0
10.00 - 45.5 55.5 55.5
Permanent Link Insertion Loss
16.00 - 42.2 52.2 52.2
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
20.00 - 40.7 50.7 50.7
1.00 2.6 2.1 1.9 1.9
25.00 - 39.1 49.1 49.1
4.00 5.6 3.9 3.5 3.5
31.25 - 37.5 47.5 47.5
8.00 8.5 5.5 5.0 5.0
62.50 - 32.7 42.7 42.7
10.00 9.7 6.2 5.5 5.5
100.00 - 29.3 39.3 39.3
16.00 13.0 7.9 7.0 7.0
200.00 - - 34.3 34.3
20.00 - 8.9 7.9 7.8
250.00 - - 32.7 32.7
25.00 - 10.0 8.9 8.8
300.00 - - - 31.4
31.25 - 11.2 10.0 9.8
400.00 - - - 27.1
62.50 - 16.2 14.4 14.0
500.00 - - - 23.8
100.00 - 21.0 18.6 18.0
200.00 - - 27.4 26.1
250.00 - - 31.1 29.5 Table 20 – Minimum permanent link PSNEXT loss
300.00 - - - 32.7
400.00 - - - 38.4
500.00 - - - 43.8
Permanent Link ACRF (Attenuation to Crosstalk Ratio, Far-End) or ELFEXT (Equal-Level Far-End Crosstalk) Permanent Link Propagation Delay
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB) Frequency (MHz) Category 3 (ns) Category 5e (ns) Category 6 (ns) Category 6A (ns)
1.00 - 58.6 64.2 64.2 1.00 521 521 521 521
4.00 - 46.6 52.1 52.1 4.00 504 504 504 504
8.00 - 40.6 46.1 46.1 8.00 500 500 500 500
10.00 - 38.6 44.2 44.2 10.00 498 498 498 498
16.00 - 34.5 40.1 40.1 16.00 496 496 496 496
20.00 - 32.6 38.2 38.2 20.00 - 495 495 495
25.00 - 30.7 36.2 36.2 25.00 - 495 495 495
31.25 - 28.7 34.3 34.3 31.25 - 494 494 494
62.50 - 22.7 28.3 28.3 62.50 - 492 492 492
100.00 - 18.6 24.2 24.2 100.00 - 491 491 491
200.00 - - 18.2 18.2 200.00 - - 490 490
250.00 - - 16.2 16.2 250.00 - - 490 490
300.00 - - - 14.6 300.00 - - - 490
400.00 - - - 12.1 400.00 - - - 490
500.00 - - - 10.2 500.00 - - - 490
Table 21 – Minimum permanent link ACRF Table 23 – Maximum permanent link propagation delay
Permanent Link Propagation Delay Skew
Permanent Link PSACRF (Powersum Insertion Loss to Alien Crosstalk Ratio Far-End) or PSELFEXT Permanent link propagation delay skew shall be less than 44 ns for all
(Powersum Equal Level Far-End Crosstalk) frequencies from 1 MHz to the upper frequency limit of the Category. For
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
1.00 - 55.6 61.2 61.2 field-testing channels, it is sufficient to test at 10 MHz only and permanent
4.00 - 43.6 49.1 49.1 link propagation delay skew at 10 MHz shall not exceed 50 ns.
8.00 - 37.5 43.1 43.1
10.00 - 35.6 41.2 41.2
Permanent Link PSANEXT Loss (Powersum Alien Near-End Crosstalk)
16.00 - 31.5 37.1 37.1
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
20.00 - 29.6 35.2 35.2 1.00 - - - 67.0
25.00 - 27.7 33.2 33.2 4.00 - - - 67.0
31.25 - 25.7 31.3 31.3 8.00 - - - 67.0
62.50 - 19.7 25.3 25.3 10.00 - - - 67.0
100.00 - 15.6 21.2 21.2 16.00 - - - 67.0
200.00 - - 15.2 15.2 20.00 - - - 67.0
250.00 - - 13.2 13.2 25.00 - - - 66.0
300.00 - - - 11.6 31.25 - - - 65.1
400.00 - - - 9.1 62.50 - - - 62.0
500.00 - - - 7.2 100.00 - - - 60.0
Table 22 – Minimum permanent link PSACRF 200.00 - - - 55.5
250.00 - - - 54.0
300.00 - - - 52.8
400.00 - - - 51.0
500.00 - - - 49.5
Permanent Link PSAACRF (Powersum Insertion Loss to Alien Crosstalk Ratio Far-End) or PSAELFEXT Horizontal Cable Insertion Loss
(Powersum Alien Equal-Level Far-End Crosstalk) Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB) 0.772 2.2 - - -
1.00 - - - 67.0 1.00 2.6 2.0 2.0 2.1
4.00 - - - 65.7 4.00 5.6 4.1 3.8 3.8
8.00 - - - 59.6 8.00 8.5 5.8 5.3 5.3
10.00 - - - 57.7 10.00 9.7 6.5 6.0 5.9
16.00 - - - 53.6 16.00 13.1 8.2 7.6 7.5
20.00 - - - 51.7 20.00 - 9.3 8.5 8.4
25.00 - - - 49.7 25.00 - 10.4 9.5 9.4
31.25 - - - 47.8 31.25 - 11.7 10.7 10.5
62.50 - - - 41.8 62.50 - 17.0 15.4 15.0
100.00 - - - 37.7 100.00 - 22.0 19.8 19.1
200.00 - - - 31.7 200.00 - - 29.0 27.6
250.00 - - - 29.7 250.00 - - 32.8 31.1
300.00 - - - 28.2 300.00 - - - 34.3
400.00 - - - 25.7 400.00 - - - 40.1
500.00 - - - 23.7 500.00 - - - 45.3
Table 25 – Minimum permanent link PSAACRF loss Table 27 – Maximum horizontal cable insertion loss
Horizontal Cable Transmission Performance
Horizontal Cable NEXT Loss (Near-End Crosstalk)
The following tables show the performance specifications for horizontal cable Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
Horizontal Cable PSNEXT Loss (Powersum Near-End Crosstalk) Horizontal Cable PSACRF (Powersum Insertion Loss to Alien Crosstalk Ratio Far-End) or PSELFEXT
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB) (Powersum Equal-Level Far-End Crosstalk)
1.00 - 62.3 72.3 72.3 Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
4.00 - 53.3 63.3 63.3 1.00 - 60.8 64.8 64.8
8.00 - 48.8 58.8 58.8 4.00 - 48.8 52.8 52.8
10.00 - 47.3 57.3 57.3 8.00 - 42.7 46.7 46.7
16.00 - 44.2 54.2 54.2 10.00 - 40.8 44.8 44.8
20.00 - 42.8 52.8 52.8 16.00 - 36.7 40.7 40.7
25.00 - 41.3 51.3 51.3 20.00 - 34.8 38.8 38.8
31.25 - 39.9 49.9 49.9 25.00 - 32.8 36.8 36.8
62.50 - 35.4 45.4 45.4 31.25 - 30.9 34.9 34.9
100.00 - 32.3 42.3 42.3 62.50 - 24.9 28.9 28.9
200.00 - - 37.8 37.8 100.00 - 20.8 24.8 24.8
250.00 - - 36.3 36.3 200.00 - - 18.8 18.8
300.00 - - - 35.1 250.00 - - 16.8 16.8
400.00 - - - 33.3 300.00 - - - 15.3
500.00 - - - 31.8 400.00 - - - 12.8
500.00 - - - 10.8
Table 29 – Minimum horizontal cable PSNEXT loss
Table 31 – Minimum horizontal cable PSACRF
Horizontal Cable ACRF (Attenuation to Crosstalk Ratio, Far-End) or ELFEXT (Equal-Level Far-End Crosstalk) Horizontal Cable Propagation Delay Skew
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB) Horizontal cable propagation delay skew shall be less than 45 ns/100 m for
1.00 - 63.8 67.8 67.8
4.00 - 51.8 55.8 55.8 all frequencies from 1 MHz to the upper frequency limit of the Category.
8.00 - 45.7 49.7 49.7
10.00 - 43.8 47.8 47.8 Horizontal Cable Propagation Delay
16.00 - 39.7 43.7 43.7 Frequency (MHz) Category 3 (ns/100 m) Category 5e (ns/100 m) Category 6 (ns/100 m) Category 6A (ns/100 m)
1.00 570 570 570 570
20.00 - 37.8 41.8 41.8
4.00 552 552 552 552
25.00 - 35.8 39.8 39.8
8.00 547 547 547 547
31.25 - 33.9 37.9 37.9
10.00 545 545 545 545
62.50 - 27.9 31.9 31.9
16.00 543 543 543 543
100.00 - 23.8 27.8 27.8
20.00 - 542 542 542
200.00 - - 21.8 21.8
25.00 - 541 541 541
250.00 - - 19.8 19.8
31.25 - 540 540 540
300.00 - - - 18.3
62.50 - 539 539 539
400.00 - - - 15.8
100.00 - 538 538 538
500.00 - - - 13.8
200.00 - - 537 537
Table 30 – Minimum horizontal cable ACRF 250.00 - - 536 536
300.00 - - - 536
400.00 - - - 536
500.00 - - - 536
Horizontal Cable PSANEXT Loss (Powersum Alien Near-End Crosstalk) TIA Category 6 Versus Augmented Category 6
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB) TIA Category TIA Category TIA Augmented ISO Class EA
1.00 - - - 67.0 5e UTP 6 UTP Category 6 UTP
4.00 - - - 67.0 Recognized
by IEEE 802.3an No Yes Yes Yes
8.00 - - - 67.0
55 Meter
10.00 - - - 67.0
Distance Support No Yes Yes Yes
16.00 - - - 67.0
100 Meter
20.00 - - - 67.0 Distance Support No No Yes Yes
25.00 - - - 67.0 Extrapolated Test
31.25 - - - 67.0 Limits for NEXT
and PSNEXT
62.50 - - - 65.6
to 500 MHz No No No Yes
100.00 - - - 62.5
200.00 - - - 58.0 Table 35 – IEEE 10GBASE-T application support
250.00 - - - 56.5
300.00 - - - 55.3 Note: This table compares current TIA Category 6 cabling with new
400.00 - - - 53.5
TIA and ISO specifications for 10 Gigabit cabling. This table
500.00 - - - 52.0
summarizes the various twisted-pair cabling options and their
Table 33 – Minimum horizontal cable PSANEXT loss respective 10 Gigabit performance attributes as defined by
the latest standards. Category 5e is not recognized as a viable
cabling media to support 10 Gigabit transmission regardless
Horizontal Cable PSAACRF (Powersum Insertion Loss to Alien Crosstalk Ratio Far-End) or PSAELFEXT
(Powersum Alien Equal Level Far-End Crosstalk)
of its installed cabling distance. Category 6 cabling will only
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
support 10 Gigabit Ethernet at a maximum installed distance
1.00 - - - 67.0 of 55 meters.
4.00 - - - 66.2
8.00 - - - 60.1
10.00 - - - 58.2
16.00 - - - 54.1
20.00 - - - 52.2
25.00 - - - 50.2
31.25 - - - 48.3
62.50 - - - 42.3
100.00 - - - 38.2
200.00 - - - 32.2
250.00 - - - 30.2
300.00 - - - 28.7
400.00 - - - 26.2
500.00 - - - 24.2
Matrix of Backward Compatible Mated Component Performance Table 37 – Minimum patch cord return loss
Category of Modular Connecting Hardware Performance
Category 3 Category 5e Category 6 Category 6A 2-Meter Patch Cord NEXT Loss (Near-End Crosstalk)
Modular Plug Category 3 Category 3 Category 3 Category 3 Category 3 Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB)
and Cord Category 5e Category 3 Category 5e Category 5e Category 5e 1.00 - 65.0 65.0 65.0
Performance Category 6 Category 3 Category 5e Category 6 Category 6 4.00 - 65.0 65.0 65.0
Category 6A Category 3 Category 5e Category 6 Category 6A 8.00 - 60.6 65.0 65.0
10.00 - 58.7 65.0 65.0
16.00 - 54.7 62.0 62.0
Table 36 – The lowest rated component determines the rating 20.00 - 52.8 60.1 60.1
of the permanent link or channel 25.00 - 50.9 58.1 58.2
31.25 - 49.0 56.2 56.3
62.50 - 43.2 50.4 50.4
100.00 - 39.3 46.4 46.4
200.00 - - 40.6 40.7
250.00 - - 38.8 38.9
300.00 - - - 36.2
400.00 - - - 31.9
500.00 - - - 28.4
5-Meter Patch Cord NEXT Loss (Near-End Crosstalk) Purpose of the ANSI/TIA-568-C.3 Standard
Frequency (MHz) Category 3 (dB) Category 5e (dB) Category 6 (dB) Category 6A (dB) The purpose of the ANSI/TIA-569-C.3 standard is to specify cable and
1.00 - 65.0 65.0 65.0
4.00 - 64.5 65.0 65.0
component transmission performance requirements for premises optical
8.00 - 58.6 65.0 65.0 fiber cabling. Although this standard is primarily intended to be used by
10.00 - 56.7 64.5 64.5 manufacturers of optical cabling solutions, other groups such as end-users,
16.00 - 52.8 60.5 60.5
20.00 - 50.9 58.6 58.7
designers and installers may also find it useful.
25.00 - 49.1 56.8 56.8
31.25 - 47.2 54.9 54.9 ANSI/TIA-568-C.3 Optical Fiber Cabling Components
62.50 - 41.6 49.2 49.2
100.00 - 37.8 45.3 45.4 Optical Fiber Cabling Systems
200.00 - - 39.8 39.9 Minimum Minimum
Overfilled Modal Effective Modal
250.00 - - 38.1 38.1 Optical Fiber Maximum Bandwidth-Length Bandwidth-Length
and Wavelength Attenuation Product Product
300.00 - - - 35.9 Cable Type2 (nm) (dB/km) (MHz•km)1 (MHz•km)1
Maintenance holes (typically 3,500 lb./sq. in., concrete) must be equipped with Workstation Floor Space
sump, corrosion-protected pulling iron, cable racks, grounded ladder and only Number of Equipment Room
Workstations Floor Space (ft.2)
such power and light conductors as required for telecommunications support 1–100 150 (14 m2)
per NEC requirements. 101–400 400 (38 m2)
401–800 800 (74 m2)
801–1,200 1,200 (111 m2)
Entrance Room and Floor Space Dimensions
Gross Building
Floor Space Table 44 – The floor space needed to accomodate workstations
(ft.2/ m2) Plywood Field Room Dimension
5,000/465 8' high x 39" wide (3 m x 99 cm)
10,000/1,000 8' high x 39" (3 m x 99 cm) (A room recommended
Provide 0.75 ft.2 (697 cm 2 ) of equipment room floor space for every
20,000/2,000 8' high x 42" (3 m x 107 cm) beyond this level) 100 ft.2 (9 m2) of user workstation area.
40,000/4,000 8' high x 68" (3 m x 173 cm)
50,000/5,000 8' high x 90" (3 m x 229 cm) Location
60,000/6,000 8' high x 96" (3 m x 244 cm) (A dedicated room required) Typically, rooms should be located away from sources of electromagnetic
80,000/8,000 8' high x 120" (3 m x 305 cm) 12' x 6.3' (4 m x 2 m)
100,000/10,000 8' high x 2 walls (3 m x 2 walls) 12' x 6.3' (4m x 2 m)
interference (transformers, motors, X-ray, induction heaters, arc welders,
200,000/20,000 8' high x 2 walls (3 m x 2 walls) 12' x 9' (4 m x 3 m) radio and radar).
400,000/40,000 8' high x 2 walls (3 m x 2 walls) 12' x 13' (4 m x 4 m)
500,000/50,000 8' high x 2 walls (3 m x 2 walls) 12' x 15.6' (4 m x 5 m) Perimeters
600,000/60,000 8' high x 2 walls (3 m x 2 walls) 12' x 18.3' (4 m x 6 m)
800,000/80,000 8' high x 2 walls (3 m x 2 walls) 12' x 22.3' (4 m x 7 m)
Typically, no false ceiling; all surfaces treated to reduce dust; walls and
1,000,000/100,000 8' high x 2 walls (3 m x 2 walls) 12' x 27.7' (4 m x 9 m) ceiling painted white or pastel to improve visibility.
Table 43 – Recommended entrance room temperature termination wall Limited Access
and floor space dimensions
Typically, single or double 36-in. x 80-in. lockable doors with no doorsills.
Allow 1 sq. ft. (929 cm 2 ) of plywood wall mount for each 200 sq. ft.
(19 m2) area of floor space. Other
Typically, no piping, ductwork, mechanical equipment or power cabling should
Equipment Room be allowed to pass through the equipment room. No unrelated storage.
An equipment room may house the main distribution frame, PBXs, secondary
voltage protection, etc. The equipment room is often appended to the entrance Ceiling Height
facilities or a computer room to allow shared air conditioning, security, fire Minimum clear height in room shall be 8 ft. (2.4 m); the height between the
control, lighting and limited access. finished floor and the lowest point should be 10 ft. (3 m) to accommodate tall
racks and overhead raceways. False ceilings should not be installed.
Dust
Less than 100 micrograms/cubic meter per 24 hour period.
Note: The term “typically” is applied here to indicate, where applicable, that these
requirements also apply to other elements of the cabling system spaces.
Lighting requirements, for instance, are largely identical for entrance facilities,
equipment rooms and telecommunications rooms.
Flushduct
Single-level rectangular duct imbedded flush in greater than
4-in. 1-in. (3 cm) concrete flooring.
inside diameter
Multichannel Raceway
Cellular raceway ducts capable of routing telecommunications and power
1-in. minimum
cabling separately in greater than 3-in. (8 cm) reinforced concrete.
Riser sleeve
Cellular Floor
Figure 15 – Riser sleeve Preformed hollows or steel-lined cells are provided in concrete with header
ducts from the telecommunications room arranged at right angles to the cells.
Trenchduct
A wide, solid tray, sometimes containing compartments and fitted with
a flattop (with gaskets) along its entire length. It is embedded flush with
the concrete finish.
Access Floor
Modular floor panels supported by pedestals, used in computer rooms
and equipment rooms.
Options include surface raceway, recessed, molding and multichannel Figure 18 – Access floor
(to carry separate power and lighting circuits).
Typically, size horizontal pathways by providing 1 sq. in. of cross-section
area for every 100 sq. ft. of workspace area being served.
Telecom
Suspended
ceiling
Utility
column
Note: Typically, a pull box, splice box or pulling point is required for any
constrained pathway where there are more than two 90 degree bends,
a 180° reverse bend or length more than 100 ft.
Figure 20 – Ceiling utility pole
Electromagnetic Interference
Ceramic fiber
Voice and data telecommunications cabling should not be run adjacent and or mineral wool
parallel to power cabling – even along short distances – unless one or both Wall assembly
cable types are shielded and grounded. For low-voltage communication cables,
a minimum 5-in. distance is required from any fluorescent lighting fixture Figure 21 – Cross-section of typical firestop
or power line over 2 kVA and up to 24 in. from any power line over 5 kVA*.
In general, telecommunications cabling is routed separately several feet away
from power cabling. Similarly, telecommunications cabling is routed away from
large motors, generators, induction heaters, arc welders, X-ray equipment and
radio frequency, microwave or radar sources.
*Note: Distance recommendations from (1990) ANSI/TIA/EIA-569 are reproduced
here by popular request. For current recommendations, refer to NEC/NFPA 70,
Article 800-52.
Classes of Administration
Four classes of administration are specified in this standard to accommodate
diverse degrees of complexity present in telecommunications infrastructure.
Each class defines the administration requirements for identifiers, records
and labeling. An administration system can be managed using a paper-based
system, general-purpose spreadsheet software or special-purpose cable
management software.
Classes of Administration
Class 3 Identifiers
Identifier Description of identifier
[b1-fs1]/[b2-fs2]-n Campus backbone identifier
d Two to four numeric characters identifying a single copper pair or a single optical fiber
b One or more alphanumeric characters identifying a single building
Cabinets
Align front or rear of cabinets
with edge of floor tiles
Front
This row of tiles can be lifted
Cold aisle (front of cabinets)
This row of tiles can be lifted
Align front or rear of cabinets Front
with edge of floor tiles
Cabinets
Rear
Figure 26 – Hot and cold aisles Figure 27 – Horizontal cabling using star topology
Redundancy
Data centers that are equipped with diverse telecommunications facilities
may be able to continue their function under catastrophic conditions that
would otherwise interrupt the data center’s telecommunications service.
This standard includes four tiers relating to various levels of availability
of the data center facility infrastructure. The tiers are related to research
Figure 28 – Backbone cabling using star topology
conducted by the Uptime Institute, which defines four tiers of performance
as shown in the following table.
Tier Clarification
Tier I: Tier II: Tier III: Tier IV:
Basic Redundant Concurrently Fault
Components Maintainable Tolerant
Number of
Delivery paths Only 1 Only 1 1 Active, 1 Passive 2 Active
Redundant
Components N N+1 N+1 2 (N+1) S+S
Support Space
to Raised
Floor Ratio 20% 30% 80-90% 100%
Figure 29 – Telecommunications infrastructure redundancy
Initial Watts/ft. 20-30 40-50 40-60 50-80
Ultimate Watts/ft. 20-30 40-50 100-150 150+
Raised Floor
Height 12 in. 18 in. 30-36 in. 30-36 in.
Floor Loading
Pounds/ft. 85 100 150 150+
Utility Voltage 208, 480 208, 480 12-15 kV 12-15 kV
Months
to Implement 3 3 to 6 15 to 20 15 to 20
Year First
Deployed 1965 1970 1985 1995
Construction $/ft.
Raised Floor $450 $600 $900 $1,100+
Annual IT
Downtime Due
to Site 28.8 hrs. 22.0 hrs. 1.6 hrs. 0.4 hrs.
Site Availability 99.671% 99.749% 99.982% 99.995%
ISO 11801 Class EA Standard IEEE 802.3af Power over Ethernet (PoE) Standard
The requirements for ISO (the International Organization for Standardization) The IEEE 802.3af specification calls for power source equipment (PSE) that
Class EA are more demanding compared to the TIA/EIA Augmented Category 6 operates at 48 volts of direct current. This guarantees 12.95 watts of power
requirements. Anixter’s Infrastructure Solutions Lab tests to the more stringent over unshielded twisted-pair cable to data terminal equipment (DTE) 100 meters
ISO standards. away (the maximum distance supported by Ethernet). That’s enough power to
support IP phones, WLAN access points and many other DTE devices. Two PSE
ISO Compared to TIA types are supported including Ethernet switches equipped with power supply
Characteristics 500 MHz (dB)
PSNEXT Loss
ISO Class EA
24.8 dB
TIA Augmented Category 6
23.2 dB
modules called endspan devices and a special patch panel called a midspan
NEXT Loss 27.9 dB 26.1 dB device that sits between a legacy switch and powered equipment, injecting
PSANEXT Loss 49.5 dB 49.5 dB power to each connection.
Return Loss 6.0 dB 6.0 dB
Insertion Loss 49.3 dB 49.3 dB
Referred to by IEEE Yes No IEEE 802.3at
Power Over Ethernet+ (Plus) Standard
Table 55 – ISO Class EA and TIA Category 6 performance comparison
The IEEE 802.3at Power over Ethernet Plus amendment to the IEEE 802.3af
standard offers improved power-management features and increases the
amount of power to end devices. The new amendment will usher in new
TIA Category 6 versus Augmented Category 6 versus ISO Class EA
TIA Category TIA Category TIA Augmented ISO Class EA
possibilities of powering devices through standard Category 5e, 6 and 6A
Recognized
by IEEE 802.3an No Yes Yes Yes
cabling. It will allow many more devices, such as access control and video
55 Meter surveillance, to receive power over a twisted-pair cabling infrastructure.
Distance Support No Yes Yes Yes
100 Meter The standard defines the technology for powering a wide range of devices up
Distance Support No No Yes Yes
Extrapolated Test
to 25 watts over existing Category 5e and above cables. The 802.3at standard
Limits for NEXT states that 30 watts at a minimum are allocated at the port, so 24.6 watts
and PSNEXT
to 500 MHz No No No Yes are ensured at the end-device connector 100 meters away. It also allows
for gigabit pass-through. PoE Plus represents a considerable upgrade over
Table 56 – ISO and TIA 10GBASE-T media types the existing PoE standard.
Table 56 summarizes the various UTP cabling options and their respective
10 Gigabit performance attributes as defined by the latest draft standards.
Category 5e is not recognized as a viable cabling media to support 10 Gigabit
transmission regardless of its installed cabling distance. Category 6 cabling
will only support 10 Gigabit at a maximum installed distance of 55 meters.
Today, the only options for operating 10 Gigabit at 100 meters using RJ45
connectivity are the TIA Augmented Category 6 and ISO Class EA standards.
ISO’s Class EA system has superior NEXT and PSNEXT performance values
when compared with the current TIA Augmented Category 6 standard.
Table 57 – Maximum 10GBASE-T cabling distances In Table 58, the recommended application roadmaps for 10 Gigabit Ethernet
cabling and protocol types have been provided. The choice of which media
ANSI/TIA-568-C.2 (Augmented Category 6) and ISO 11801 (Class EA) to use will revolve around three variables:
cable specifications are based on IEEE cabling models. 100 meters over • Circuit distances
UTP is only guaranteed when using Augmented Category 6 or ISO Class EA
• Cost
compliant cabling systems.
• Active equipment interfaces (connectors)
10GBASE fiber will maintain traditional applications in backbones and risers
and also in the data center for server clustering.
10GBASE-T copper will remain in the traditional areas of application
(in horizontal building cabling but also in the data center between servers
and clusters).
10GBASE-CX4 defines a multiconductor copper solution primarily designed
to connect servers and switches over short distances.
IEEE 802.11 Wireless Standard 802.11i – Also sometimes called Wi-Fi Protected Access 2 (WPA 2),
IEEE 802.11, the Wi-Fi standard, denotes a set of wireless LAN/WLAN standards 802.11i was ratified in June 2004. WPA 2 supports the 128-bit-and-above
developed by working group 11 of the IEEE LAN/MAN standards committee (IEEE Advanced Encryption Standard, along with 802.1x authentication and key
802). The term 802.11x is also used to denote this set of standards and is not management features.
to be mistaken for any one of its elements. There is no single 802.11x standard.
802.11k – Passed in June 2008, the 802.11k Radio Resource Management
802.11 details a wireless interface between devices to manage packet traffic Standard will provide measurement information for access points and
(to avoid collisions, etc.). Some common specifications and their distinctive switches to make wireless LANs run more efficiently. It may, for example,
attributes include the following: better distribute traffic loads across access points or allow dynamic
adjustments of transmission power to minimize interference.
802.11a – Operates in the 5 GHz frequency range (5.125 to 5.85 GHz)
with a maximum 54 Mbps signaling rate. The 5 GHz frequency band isn’t 802.11n – Ratified in September 2009, 802.11n is a set of standards
as crowded as the 2.4 GHz frequency because it offers significantly more for wireless local area network (WLAN) communications, developed by
radio channels than the 802.11b and is used by fewer applications. It has the IEEE LAN/MAN Standards Committee (IEEE 802) in the 5 GHz and
a shorter range than 802.11g, is actually newer than 802.11b and is not 2.4 GHz public spectrum bands. The proposed amendment improves
compatible with 802.11b. upon the previous 802.11 standards by adding multiple-input
multiple-output (MIMO) and many other newer features.
802.11b – Operates in the 2.4 GHz Industrial, Scientific and Medical (ISM)
band (2.4 to 2.4835 GHz) and provides signaling rates of up to 11 Mbps.
This is a commonly used frequency. Microwave ovens, cordless phones,
medical and scientific equipment, as well as Bluetooth® devices, all work
within the 2.4 GHz ISM band.
802.11e – Ratified by the IEEE in late September 2005, the 802.11e
quality-of-service specification is designed to guarantee the quality
of voice and video traffic. It will be particularly important for companies
interested in using Wi-Fi phones.
802.11g – Similar to 802.11b, this standard supports signaling rates
of up to 54 Mbps. It also operates in the heavily used 2.4 GHz ISM
band but uses a different radio technology to boost overall throughput.
Compatible with older 802.11b.
Challenge: National Insurance Company with Reference Documents for Further Information on Cabling Standards
Data Center Cabling Choice ANSI/TIA-568-C.0 (2009)
Anixter Infrastructure Solutions Lab Resolution: The Anixter Infrastructure Generic Telecommunications Cabling for Customer Premises
Solutions Lab assessed backbone cabling requirements based on the
ANSI/TIA-568-C.1 (2009)
current and future bandwidth needs for this insurance provider. The Anixter
Commercial Building Telecommunications Standard
Infrastructure Solutions Lab ran representative network traffic over 62.5-micron,
50-micron and laser-optimized 50-micron fiber (OM3) to ascertain which would ANSI/TIA-568-C.2 (2009)
best meet the company’s needs. These tests were key in determining that the Balanced Twisted-Pair Telecommunications Cabling and Component Standard
OM3 was the customer’s best choice. ANSI/TIA-568-C.3 (2009)
Optical Fiber Cabling Components
Anixter’s 10 Gigabit Ethernet Cabling Testing
Anixter Infrastructure Solutions Lab is the only UL Certified lab to conduct rigorous, ANSI/TIA-1005 (2009)
independent third-party testing of emerging 10 Gigabit cabling solutions. Anixter’s Telecommunications Infrastructure for Industrial Premises
10 Gigabit cabling testing examines electrical characteristics such as insertion IEEE 802.3at (2009)
loss, return loss and crosstalk, but also looks at alien crosstalk (which is part of Power over Ethernet Plus
the Augmented Category 6 spec). To ensure that the 10 Gigabit cabling solutions
we sell meet the highest levels of performance and reliability for our customers, IEEE 802.3an (2006)
the Anixter Infrastructure Solutions Lab tests the toughest performance parameter, Physical Layer and Management Parameters for 10 Gbps Operation,
alien crosstalk, in the “worst case” scenario. Customers can rest assured Type 10GBASE-T
that the cabling solutions Anixter sells will provide the network performance IEEE 802.3af (2003)
they require.
Power over Ethernet (PoE) Standard
IEEE 802.3-1998 (1998)
Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
Access Method and Physical Layer Specification (also known
as ANSI/IEEE Std 802.3-1998 or ISO 8802-3: 1990 (E))
IS0/IEC 11801 (2002)
Generic Cabling for Customer Premises
110| anixter.com
The Anixter European Standards Reference Guide
The Anixter European Standards Reference Guide is an invaluable
industry tool to help you stay informed of recent standard
developments for structured cabling systems. The guide
includes an up-to-date summary of the ANSI/TIA/EIA, ISO,
CENELEC and IEEE standards featuring European standards
ISO 11801, ISO 18010, EN50173, EN50174, EN50310.
To order a copy, go to www.anixter.com/literature.
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and relevant standards. Throughout the world, we provide innovative supply chain management
services to reduce our customers’ total cost of production and implementation.
A NYSE listed company, Anixter, with its subsidiaries, serves companies in more than
52 countries around the world. Anixter’s total revenue approximated $5 billion in 2009.
Anixter Inc. does not manufacture the items described in this publication. All applicable warranties
are provided by the manufacturers. Purchasers are requested to determine directly from the manufacturers
the applicable product warranties and limitations.Data and suggestions made in the publication
are not to be construed as recommendations or authorizations to use any products in violation
of any government law or regulation relating to any material or its use.