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Category 6A UTP vs. FTP
Nathan Benton, RCDD/NTS/WDTechnical Manager
UTP vs. FTP
• Two copper solutions for 10Gb/s– UTP and FTP
• Effects of Alien Crosstalk (ANEXT)
• ANEXT Mitigation Methods
• Standards ApproachVictim
Comparison Chart
6A UTP 6A FTPParameterTIA-568-C.1Data RateMax DistanceCable SizeANEXT TestingShared PathwaysTraining
Standards Compliance
• TIA-568-C.1 Commercial Building Telecommunications Cabling Standard
• Ratified Feb 2008
• Available Now on TIA Website– http://www.tiaonline.org/standards/catalog/search.
cfm
TIA-568-C.1 Commercial Building Telecommunications Cabling StandardTo incorporate• ANSI/TIA/EIA-568-B.1-4, Addendum 4 – Recognition of Category 6 and 850 nm Laser-
Optimized 50/125 Multimode Optical Fiber Cabling• ANSI/TIA/EIA-568-B.1-5, Addendum 5 – Telecommunications Cabling for
Telecommunications Enclosures
Highlights of technical changes from the previous edition• Removal of generic requirements which are now placed within ANSI/TIA-568-C.0• Removal of 150-Ohm STP cabling• Removal of Category 5 cabling• Incorporation of references to generic nomenclature found in ANSI/TIA-568-C.0• Inclusion of Category 6 and Augmented Category 6 balanced 100-ohm cabling• Inclusion of 850 nm laser-optimized 50/125 um multimode optical fiber cabling• Inclusion of Telecommunications Enclosures• Removal of balanced twisted-pair cabling performance and test requirements which are
now placed within ANSI/TIA-568-C.2• Centralized cabling incorporated into main body of document • Removal of 50-ohm and 75-ohm coaxial cabling
UTP-vs-FTP Selection Matrix
YESYES Meet Class A Emission requirements
YES
NO(YES if in metal containment)
Meet immunity requirements per IEC/EN 61000-6-2 (Heavy Industrial environments)
YES
YES Meet immunity requirements per IEC CISPR 24, EN 55024 and IEC/EN 61000-6-1 (Office environments)
YESYES Meet or exceed TIA Category 6A channel specifications (up to 4-connection channel)
YESYES Meet or exceed ISO/IEC Class EA channel specifications (up to 4-connection channel)
YESYES Support 10GBASE-T to 100 meters (up to 4-connection channel)
X10D FTPX10D UTPCustomer Requirements Generic Cat 6A FTP
YES
YES
YES
YES
NO
YES
Must meet TIA-568-C.1
Comparison Chart
6A UTP 6A FTPParameterTIA-568-C.1 Compliant CompliantData RateMax DistanceCable SizeANEXT TestingShared PathwaysTraining
Data Rates
• Standard written around 10Gb/s• Category 6A Added to Standard• Backwards Compatible with Cat6 and Cat5e• Category 5e removed from standard
• IEEE 802.11an Standard• 10Gb/s over installed base of Category 6
– May Require Mitigation
10GBASE-T Power ProjectionTechnology Improvements Reduce Power Needs
2006-7 2007-8 2008-9
TN1010
130nm10W
TN2020
5W
TN3030
3WTeranetics TeraPHY®
Source: Linley Group Conference May 2007
• Intel Penryn Processor (45 nm technology) available November 2007• 32 nm technology processors available in 2009• Each improvement reduces power 30-40%
Comparison Chart
6A UTP 6A FTPParameterTIA-568-C.1 Compliant CompliantData Rate 10 Gb/s 10Gb/sMax DistanceCable SizeANEXT TestingShared PathwaysTraining
Maximum Distance
• 100 Meters Channel• Specifies a 4 Connector Model
• IEEE 802.11an Standard• 10Gb/s over installed base of Category 6
– 37 Meters– May Require Mitigation
Performance of Channel vs. Components
• Be careful of Cable test measurements that exceed the TIA568.B.2 - 250 MHz frequency sweep
– 600 MHz frequency is not achievable in a field channel
• When comparing performance specifications it is important to view the entire channel
• Ensure manufacturer is warranting the entire channel not just the components they manufacture
91A Series Cable
SYSTIMAX M3600 w/ MGS500
GS10E CordGS10E Cord
SYSTIMAX M3600 w/ MGS500 MGS500MGS500
GS10E CordGS10E Cord
3 6 1 2 3 6 1 2
Lucent PATCHMAX Lucent PATCHMAX
Verified Support of 10G6@1 100m 4-conn Channel
Comparison Chart
6A UTP 6A FTPParameterTIA-568-C.1 Compliant CompliantData Rate 10 Gb/s 10Gb/sMax Distance 100 meters 100 metersCable SizeANEXT TestingShared PathwaysTraining
Cable Diameter
• TIA-568-C.1 Specifes maximum cable diameter of .354 inches O.D.
• Specified for both UTP and FTP• Typical UTP O.D. .30 in to .33 in
– New UTP introduction of .285 in• Typical FTP O.D. .290 in
• 6 around 1 configuration
Conduit Fill Ratio
Size AcondFTP OD
UTP OD
A-FTP
A-UTP
40% Fill UTP
40%Fill FTP
0.5 0.20 0.29 0.31 0.07 0.08 1.04 1.19
0.75 0.44 0.29 0.31 0.07 0.08 2.34 2.68
1.00 0.79 0.29 0.31 0.07 0.08 4.16 4.76
1.25 1.23 0.29 0.31 0.07 0.08 6.50 7.43
1.50 1.77 0.29 0.31 0.07 0.08 9.37 10.70
* Plenum Cable used in this illustration
1.24”
2.3”
Single gang boxes are not large enoughto maintain proper bend radius.
– UTP – 4x Outside Diameter of the Cable– FTP – 8x Outside Diameter of the Cable
CAT6A FTPCAT6A UTP
Cable Diameter
Comparison Chart
6A UTP 6A FTPParameterTIA-568-C.1 Compliant CompliantData Rate 10 Gb/s 10Gb/sMax Distance 100 meters 100 metersCable Size .285 in O.D. .290 in O.D.ANEXT TestingShared PathwaysTraining
Large bundles common in Data Centers
Alien NEXT
The signal strength of non-adjacent cables is simply too weak to induce Alien Crosstalk
Cable geometry dictates the total number of cables with Alien Crosstalk effect on a single cable is SIX (6)
Example of 6 around 1 ConfigurationTest Equipment Setup
Measuring AlienCrosstalk
FIELD TESTING
• Field Testing is NOT specified in the Standards for UTP or FTP – it is an option.
• Most UTP manufacturers do not require ANEXT testing to warranty system
• To ensure meeting quality metrics both UTP and FTP should be tested.
• FTP Shield continuity testing
Comparison Chart
6A UTP 6A FTPParameterTIA-568-C.1 Compliant CompliantData Rate 10 Gb/s 10Gb/sMax Distance 100 meters 100 metersCable Size .285 in O.D. .290 in O.D.ANEXT Testing Not Required* Not Required*Shared PathwayExperience
Shared Cable Pathways
• TIA-568-B.2-10 E.4 Test Configurations“Alien Cross-talk requirements for category 6A channels and permanent links are specified for bundled configurations containing only category 6A cabling requirements”
• Manufacturers publish specific installation guidelines for various situations
• Separation of Cat6A UTP cabling from lower categories is an issue if the lower categories are supporting 10G. For all other applications there is no issue.
• Typical Cabling Requirements
• Cable types are laid, routed, and/or bundled in separate groups• Pull each cable type separately• Cables can be layered but not intermingled • If alternate pulling of each cable type is planned, then side by side
positions in the tray must be allocated for each cable type
Shared Cable Pathways
Comparison Chart
6A UTP 6A FTPParameterTIA-568-C.1 Compliant CompliantData Rate 10 Gb/s 10Gb/sMax Distance 100 meters 100 metersCable Size .285 in O.D. .290 in O.D.ANEXT Testing Not Required* Not Required*
Shared PathwayStd. Bundling/ Layering Std. Bundling
Experience
Structured Cabling Questionnaire
Question Answer
1 What percentage of installations over the past 3 years have been FTP / STP (non-UTP) ?
2 What percentage of installations over the last 3 years have been UTP?
3 How many installation projects have you done in hospital environments in the last 3 years?
4 How many of these hospital projects utilized FTP / STP solutions?
5Have your Technicians received independent training for FTP /STP Solutions (BICSI, Global Knowledge, NJATC, etc) ?
6 If Yes, what percentage of technicians received training?
7 Have your Technicians received vendor specific training for FTP / STP solutions?
8 If Yes, what percentage of technicians received training?
9Have your Technicians received independent training for UTP Solutions (BICSI, Global Knowledge, NJATC, etc) ?
10 If Yes, what percentage of technicians received training?
11 Have your Technicians received vendor specific training for UTP solutions?
12 If Yes, what percentage of technicians received training?
13 What percentage of current inventory consists of FTP / STP components?
14 What percentage of current inventory consists of UTP components?
Installation Experience
Installation Experience
FTP v. UTP Installations
1%
99%
1 2
Non-Vendor FTP Training
6%
94%
Received
Vendor-Specific FTP Training
9%
91%
Received
Percentage of Inventory
0%
100%
FTP
Comparison Chart
6A UTP 6A FTPParameterTIA-568-C.1 Compliant CompliantData Rate 10 Gb/s 10Gb/sMax Distance 100 meters 100 metersCable Size .285 in O.D. .290 in O.D.ANEXT Testing Not Required* Not Required*
Shared PathwayStd. Bundling/ Layering Std. Bundling
Experience84% Worldwide
16% Worldwide
Thank you
Brought to you by
Nathan Benton, RCDD/NTS/WDTechnical Manager, NAR Enterprise Solutions
