1) The addition of TCL and ELTCTL requirements to Category 6

Transcription

1 Subject 444 TO: SUBJECT: 455 East Trimble Road San Jose, CA July 28, 2008 Subscribers to UL s Listing and Verification Services for Communications Cable (DUZX) Revised Test and Follow-Up Service Requirements for the Optional Qualification of 100-Ohm Twisted-Pair Constructions of Listed Communication Cable Types for Data-Transmission Performance-Category Markings; ANNOUNCED EFFECTIVE DATE This bulletin replaces UL s July 9, 2002 bulletin on the same subject. The attached UL Data Transmission Category Marking Program does not differ technically from the Program described in the July 9, 2002 bulletin for Categories 1 5e. The technical changes are: 1) The addition of TCL and ELTCTL requirements to Category 6 2) The addition of Category 6A requirements ANNOUNCED EFFECTIVE DATE The attached revised UL program for verifying the performance of 100-ohm twisted-pair cables to categories 1 6A is in effect as of the date of this bulletin. RATIONALE IMPACT 1. The TCL and ELTCTL test requirements were added to TIA/EIA-568-B.2-1 in In order to maintain continued compliance with this standard, this bulletin is being revised to include those requirements. 2. Category 6A was added to TIA/EIA-568-B.2-10 in In order to maintain continued compliance with this standard, this bulletin is being revised to include those requirements. Currently verifie Category 1 6A cables are not affected by the publication of these requirements. Participation in UL s Performance Category program is an optional service available for UL-Listed Communication Cables. A UL Listing for the cable is a prerequisite for participating in the Performance-category program. In order for a manufacturer to apply the UL Performancecategory Verification Mark (label) and Verification surface markings, their UL Listed cables must be qualified to the requirements in the attached program. Cable manufacturers interested in implementing the attached verificatio program may contact UL s Customer Service and request a quote at

2 -2- Suggestions and comments regarding the attached program are welcome at any time and should be made to the undersigned. UNDERWRITERS LABORATORIES INC. ROBERT BELLASSAI, RCDD Staff Engineer Conformity Assessment Services phone: INT REVIEWED BY: Susan Stene Principal Engineer Wire and Cable INT Anthony Tassone Principal Engineer Wire and Cable INT Copyright 2008 Underwriters Laboratories Inc.

3 -A1- APPENDIX A UNDERWRITERS LABORATORIES INC. TEST PROGRAM FOR QUALIFYING 100-OHM TWISTED-PAIR CABLES FOR DATA-TRANSMISSION PERFORMANCE-CATEGORY MARKINGS INTRODUCTION The UL performance program applies to 100-ohm twisted pairs that are cabled and then jacketed as data cables. The intent is to provide for the certificatio of these data cables to categories of performance that are useful to system-design consultants, cable distributors, system users, cable manufacturers, and equipment manufacturers. The program covers determination of the performance category of cables as single components of data-transmission systems. The fina acceptability of a particular cable for a specifi data system needs to be determined by the system designer taking into account variables such as installation practices, cable length, connected equipment, and the operating environment. The performance category is marked on the cable. The number of categories and the criteria for each category are based on established and developing industry standards and are subject to revision as needs change. CABLE CONSTRUCTION UL-Listed Communications Cables are eligible if they consist of one of the following: a) A jacketed cabled assembly of 100-ohm twisted pairs of 24 or 22 AWG solid copper conductors. b) Patch cables containing 24 AWG stranded copper conductors that are untinned or tinned or otherwise metal-coated or are not metal-coated. c) HYBRID CABLES Two or more jacketed members that are cabled together and then covered by an overall jacket. d) BUNDLED CABLES Two or more jacketed members bound by a binder tape or thread, or laid fla and parallel joined by an interconnecting web. TESTS AND PERFORMANCE CATEGORIES At UL, one sample length, 1000 feet long for Category 2 cable, and at least 100 meters long (328 feet, 1 inch) for Category 3, 4, 5, 5E, 6 and 6A cables, is to be subjected to each of the tests indicated below for the category. Additionally, for category 6A cables, another seven (7) reels of cable each containing at least 100 meters will need to be supplied in order to perform alien test measurements. Sample lengths are to be tested off-reel at room temperature for Categories 3, 4, 5, 5E, 6 and 6A and additionally at elevated temperatures for Categories 4, 5, 5E, 6 and 6A. At room temperature (20 C±3 C& 50±5% Reletive Humidity), the lengths are to be suspended in the air in long, very narrow loops without crossovers. The cable in the loops is to be at least 4 inches from any partition or other room surface. Adjacent turns of the loops are to be at least 1 inch apart. For testing at elevated temperatures, a 100-meter sample, loosely coiled off-reel, is to be placed in a circulating-air oven at 40 C and 60 C. A portion of the cable not to exceed 2 meters in length (6 feet, 6 inches) is to be brought out of the oven and connected to the measuring apparatus.

4 -A2- CATEGORY 1 Basic Communications Cables. There are no electronic performance tests for these cables. Required cable surface marking for any UL-Listed cable of an MP or CM type: Category 1 or CAT 1. The word Verifie is not to be used in association with Category 1. CATEGORY 2 Communications cables containing 2-25twisted pairs are eligible. Required cable surface marking: Verifie (UL) Category 2. Required patch cable surface marking: Verifie (UL) Category 2 Patch Cable CAT may be used in place of Category MAXIMUM D-C RESISTANCE 24 AWG: AWG: 18.0 ohms/1000feet at 20 C single copper conductor solid or stranded See ASTM D 4566 regarding adjustment of the values of resistance read at temperatures other than 20 C. metal-coated or not metal-coated CHARACTERISTIC IMPEDANCE 256 khz ohms MHz MAXIMUM INSERTION LOSS FOR ANY 256 khz 4.0 PAIR (IL) db/100 feet at 20 C MHz 8.0 CATEGORY 3 Cables employing one or more pairs comply with the requirements in TIA/EIA-568B.2. Required cable surface marking: Verifie (UL) Category 3 TIA/EIA-568B.2 Required patch cable surface marking: Verifie (UL) Category 3 TIA/EIA-568B.2 Patch Cable CAT may be used in place of Category. TIA/EIA-568B.2 may be omitted. MAXIMUM D-C RESISTANCE 24 AWG: AWG: 5.91 Ohms/100m at 20 C single copper conductor See ASTM D 4566 regarding adjustment of the values of solid or stranded resistance read at temperatures other than 20 C. metal-coated or not metal-coated MAXIMUM D-C RESISTANCE UNBALANCE 5 percent MAXIMUM PR-TO-GND CAPACITANCE UNBALANCE 330 pf/100m CHARACTERISTIC IMPEDANCE AT MHz 100 ohms Minimum: 85 Maximum: 115 MINIMUM STRUCTURAL RETURN LOSS (SRL) 1.0 f MHz 10.0: 12 db 10.0 < f MHz 16.0: SRL f SRL log 10 (f/10.0) MAXIMUM INSERTION LOSS FOR ANY PAIR (IL) f MHz 16.0: IL f 2.32(f) 1/ (f) Table Continued on Next Page

5 -A3- Table Continued db/100m at 20 C CATEGORY 3 Solid 24 and 22 AWG 256 khz Stranded 24 AWG (Frequencies 256 KHz through 512 KHz are for engineering purposes only) 772 khz 1.0 MHz These discrete values are only for formula crossreference checking.use swept frequency for limit calculation MINIMUM WORST-PAIR NEAR-END CROSSTALK (NEXT) f MHz 16.0: NEXT f NEXT (16) - 15 log 10 (f/100) db at 20 C for a minimum length of 100 meters of any pair 772 khz 43.0 These discrete values are only combination per ASTM D 4566 For cables employing 5 or 1.0 MHz 41.3 for formula cross-reference more pairs, the Power Sum Near End Crosstalk (PSNEXT) checking. Use swept frequency limits are also to be calculated for uncorrelated disturbing for limit calculation. pairs using the individual pair-to-pair crosstalk measurements at all of the measurement frequencies. Use the NEXT formula shown here Hybrid/bundled cables are to comply with the Power Sum NEXT loss requirements stated for Category 3. MAXIMUM PROPAGATION DELAY (PD) - 4-pair cables only 1.0 f MHz 16.0: PD = max at 1.0 MHz ns/100m at 20 C 36/(f) 1/2 = 545 max at 10.0 MHz 543 max at 16.0 MHz MAXIMUM PROPAGATION DELAY SKEW (PDS) - 4-pair cables only ns/100m at 20 C 1.0, 10.0, and 16.0 MHz: 45 Propagation delay skew between all pair combinations is not to vary more than ±10 ns from the 20 C results when measured at 40 C and 60 C.

6 -A4- CATEGORY 4 Cables employing one or more pairs comply with the requirements shown below. Required cable surface marking: Verifie (UL) Category 4 Required patch cable surface marking: Verifie (UL) Category 4 Patch Cable CAT may be used in place of Category MAXIMUM D-C RESISTANCE 24 AWG: AWG: 5.91 ohms/100m at 20 C single copper conductor See ASTM D 4566 regarding adjustment of the values of resistance read at solid or stranded temperatures other than 20 C. metal-coated or non metal-coated MAXIMUM D-C RESISTANCE UNBALANCE 5 percent MAXIMUM PR-TO-GND CAPACITANCE 330 UNBALANCE pf/100m CHARACTERISTIC IMPEDANCE AT MHz Minimum: 85 ohms Maximum: 115 MINIMUM STRUCTURAL RETURN 1.0 f MHz 10.0: 21 LOSS (SRL) 10.0 < f MHz 20.0: SRL f SRL log 10 (f/10.0) db 16.0 MHz: 20.0 MHz: These discrete values are only for formula cross-reference checking. Use swept frequency for limit calculation MAXIMUM INSERTION LOSS FOR ANY PAIR f MHz 20.0: IL f 2.05(f) 1/ (f) (f) 1/2 (IL) db/100m at 20 C Solid 24 and 22 AWG The plus (+) limits are to be increased by 8 percent for measurements of 40 C and 16 percent for measurements at 60 C MINIMUM WORST-PAIR NEAR-END CROSSTALK (NEXT) db at 20 C for a minimum length of 100 meters of any pair combination per ASTM D 4566 For cables employing 5 or more pairs, the Power Sum Near End Crosstalk (PSNEXT) limits are also to be calculated for uncorrelated disturbing pairs using the individual pair-to-pair crosstalk measurements at all of the measurement frequencies. Use the NEXT formula shown here. Stranded 24 AWG (For engineering purposes only) 256 khz These discrete values are only for formula cross-reference 772 khz checking.use swept 1.0 MHz frequency for limit calculation f MHz 20.0: NEXT f NEXT (0.772) - 15 log 10 (f/0.772) 772 khz 58 These discrete values are only for 1.0 MHz 56 formula cross-reference checking. Use swept frequency for limit calculation Hybrid/bundled cables are to comply with the Power Sum NEXT loss requirements stated for Category 4. MAXIMUM PROPAGATION DELAY 1.0 f MHz 20.0: PD = /(f) 1/2 = 570 max at 1.0 MHz (PD) - 4-pair cables only 545 max at 10.0 MHz Table Continued on Next Page

7 -A5- Table Continued ns/100m at 20 C CATEGORY 4 MAXIMUM PROPAGATION DELAY SKEW (PDS) - 4-pair cables only ns/100m at 20 C 1.0, 10.0, and 20.0 MHz: 45 Propagation delay skew between all pair combinations is not to vary more than ±10 ns from the 20 C results when measured at 40 C and 60 C. 542 max at 20.0 MHz CATEGORY 5 Cables employing one or more pairs comply with the requirements in TIA/EIA-568B.2. Required cable surface marking: Verifie (UL) Category 5 TIA/EIA-568B.2 Required patch cable surface marking: Verifie (UL) Category 5 TIA/EIA-568B.2 Patch Cable CAT may be used in place of Category TIA/EIA-568B.2 may be omitted. MAXIMUM D-C RESISTANCE 24 AWG: AWG: 5.91 ohms/100m at 20 C single copper conductor See ASTM D 4566 regarding adjustment of the values of resistance read at solid or stranded temperatures other than 20 C. metal-coated or non metal-coated MAXIMUM D-C RESISTANCE UNBALANCE 5 percent MAXIMUM PR-TO-GND CAPACITANCE 330 UNBALANCE pf/100m CHARACTERISTIC IMPEDANCE AT MHz Minimum: 85 ohms Maximum: 115 MINIMUM STRUCTURAL RETURN 1.0 f MHz 20.0: 23 LOSS (SRL) 20.0 < f MHz 100.0: SRL f SRL log 10 (f/20.0) db 25.0 MHz: 22 These discrete values are only for formula cross-reference checking. Use swept frequency for limit calculation MAXIMUM INSERTION LOSS FOR ANY PAIR f MHz 100.0: IL f 1.967(f) 1/ (f) (f) 1/2 (IL) db/100m at 20 C Solid 24 and 22 AWG Stranded 24 AWG (For engineering purposes only) Table Continued on Next Page

8 -A6- Table Continued CATEGORY khz These discrete values are only for formula 772 khz cross-reference checking.use swept 1.0 MHz frequency for limit calculation. The plus (+) limits are to be increased by percent for measurements of 40 C and percent for measurements at 60 C MINIMUM WORST-PAIR NEAR-END f MHz 100.0: NEXT f NEXT (0.772) - 15 log 10 (f/0.772) CROSSTALK (NEXT) db at 20 C for a minimum length of 100 meters 772 khz 64 These discrete values are only for of any pair combination per ASTM D 4566 For 1.0 MHz 62 formula cross-reference checking. cables employing 5 or more pairs, the Power Use swept frequency for limit Sum Near End Crosstalk (PSNEXT) limits are calculation. also to be calculated for uncorrelated disturbing pairs using the individual pair-to-pair crosstalk measurements at all of the measurement frequencies. Use the NEXT formula shown here Hybrid/bundled cables are to comply with the Power Sum NEXT loss requirements stated for Category 5. MAXIMUM PROPAGATION DELAY 1.0 f MHz 100.0: PD = /(f) 1/2 = 570 max at 1.0 MHz (PD) - 4-pair cables only 545 max at 10.0 MHz ns/100m at 20 C 538 max at MHz MAXIMUM PROPAGATION DELAY SKEW (PDS) - 4-pair cables only ns/100m at 20 C 1.0, 10.0, and MHz: 45 Propagation delay skew between all pair combinations is not to vary more than ±10 ns from the 20 C results when measured at 40 C and 60 C.

9 -A7- CATEGORY 5E Cables employing one or more pairs comply with the requirements in TIA/EIA-568B.2. Required cable surface marking: Verifie (UL) Category 5E TIA/EIA-568B.2 Required patch cable surface marking: Verifie (UL) Category 5E TIA/EIA-568B.2 Patch Cable CAT may be used in place of Category TIA/EIA-568B.2 may be omitted. MAXIMUM D-C RESISTANCE 24 AWG: AWG: 5.91 ohms/100m at 20 C single copper conductor See ASTM D 4566 regarding adjustment of the values of resistance read at solid or stranded temperatures other than 20 C. metal-coated or non metal-coated MAXIMUM D-C RESISTANCE UNBALANCE 5 percent MAXIMUM PR-TO-GND CAPACITANCE 330 UNBALANCE pf/100m MAXIMUM INSERTION LOSS FOR ANY PAIR f MHz 100.0: IL f 1.967(f) 1/ (f) (f) 1/2 (IL) db/100m at 20 C Solid 24 and 22 AWG The plus (+) limits are to be increased by 8 percent for measurements of 40 C and 24 percent for measurements at 60 C MINIMUM WORST-PAIR NEAR-END CROSSTALK (NEXT) db at 20 C for a minimum length of 100 meters of any pair combination Stranded 24 AWG (Frequencies 256 KHz through 512 KHz are for engineering purposes only) 256 khz khz These discrete values are only for formula cross-reference 1.0 MHz checking.use swept frequency for limit calculation f MHz 100.0: NEXT f NEXT (100) - 15 log 10 (f/100) 772 khz 67.0 These discrete values are only for 1.0 MHz 65.3 formula cross-reference checking. Use swept frequency for limit calculation Hybrid/bundled cables are to comply with the Power Sum NEXT loss requirements stated for Category 5E on page A14. MINIMUM POWER SUM NEAR-END f MHz 100.0: PSNEXT f log 10 (f/100) CROSSTALK (PSNEXT) Table Continued on Next Page

10 -A8- Table Continued CATEGORY 5E db 772 khz 64.0 These discrete values are only for Per ASTM D 4566 FEXT Measurement 1.0 MHz 62.3 formula cross-reference checking. Use Procedure The Power Sum Near-End swept frequency for limit calculation. Crosstalk (PSNEXT) limits are to be calculated for uncorrelated disturbing pairs using the individual pair-to-pair crosstalk measurements at all of the measurement frequencies MINIMUM EQUAL LEVEL FAR-END 1.0 f MHz 100.0: ELFEXT f log 10 (f/100) CROSSTALK (ELFEXT) db 1.0 MHz 63.8 These discrete values are only for Per ASTM D 4566 FEXT Measurement formula cross-reference checking. Use Procedure ELFEXT is the difference between swept frequency for limit calculation. the measured FAR-END Crosstalk (FEXT) and the attenuation of the disturbed pair at all of the measurement frequencies CATEGORY 6 Cables employing one or more pairs comply with the requirements in TIA/EIA-568-B.2-1. Required cable surface marking: Verifie (UL) Category 6 TIA/EIA-568-B.2-1 Required patch cable surface marking: Verifie (UL) Category 6 TIA/EIA-568-B.2-1 Patch Cable CAT may be used in place of Category TIA/EIA-568-B.2-1 may be omitted. MAXIMUM D-C RESISTANCE 24 AWG: AWG: 5.91 ohms/100m at 20 C single copper conductor See ASTM D 4566 regarding adjustment of the values of resistance read at solid or stranded temperatures other than 20 C. metal-coated or non metal-coated MAXIMUM D-C RESISTANCE UNBALANCE 5 percent MAXIMUM PR-TO-GND CAPACITANCE 330 UNBALANCE pf/100m MAXIMUM INSERTION (ATTENTUATION) LOSS FOR ANY PAIR (IL) db/100m at 20 C Solid 24 and 22 AWG 1.0 f MHz 250.0: IL f 1.808(f) 1/ (f) (f) 1/2 (solid) 1.0 f MHz 250.0: IL f 1.2 x Insertion loss for solid conductor (stranded) Stranded 24 AWG (For engineering purposes only) Table Continued on Next Page

11 -A9- Table Continued CATEGORY khz MHz These discrete values are only for formula cross-reference checking.use swept frequency for limit The plus (+) limits are to be increased by calculation. percent for measurements of 40 C and percent for measurements at 60 C MINIMUM WORST-PAIR NEAR-END f MHz 250.0: NEXT f log 10 (f/100) CROSSTALK (NEXT) db at 20 C for a minimum length of 100 meters 150 khz 86.7 These discrete values are only for of any pair combination formula cross-reference checking. Use 1.0 MHz 74.3 swept frequency for limit calculation Hybrid/bundled cables are to comply with the Power Sum NEXT loss requirements stated for Category 6. MINIMUM POWER SUM NEAR-END f MHz 25.0: PSNEXT f log 10 (f/100) CROSSTALK (PSNEXT) db 150 khz 84.7 These discrete values are only for Per ASTM D 4566 FEXT Measurement formula cross-reference checking. Use Procedure The Power Sum Near-End 1.0 MHz 72.3 swept frequency for limit calculation. Crosstalk (PSNEXT) limits are to be calculated for uncorrelated disturbing pairs using the individual pair-to-pair crosstalk measurements at all of the measurement frequencies MINIMUM EQUAL LEVEL FAR-END 1.0 f MHz 250.0: ELFEXT f log 10 (f/100) CROSSTALK (ELFEXT) Table Continued on Next Page

12 -A10- Table Continued CATEGORY 6 db 772 khz 70.0 These discrete values are only for Per ASTM D 4566 FEXT Measurement 1.0 MHz 67.8 formula cross-reference checking. Use Procedure ELFEXT is the difference between swept frequency for limit calculation. the measured FAR-END Crosstalk (FEXT) and the attenuation of the disturbed pair at all of the measurement frequencies MINIMUM POWER SUM EQUAL LEVEL FAR- 1.0 f MHz 250.0: PSELFEXT f log 10 (f/100) END CROSSTALK (PSELFEXT) db/100m 772 khz 67.0 These discrete values are only for Measurement Precaution For accurate and 1.0 MHz 64.8 formula cross-reference checking. Use consistent results, use a 100-meter unreeled swept frequency for limit calculation. length and maintain wire polarity (tip and ring) MINIMUM RETURN LOSS (RL) 1.0 f MHz 10.0: RL log 10 (f) db 10.0 f MHz 20.0: RL 25 (SOLID CONDUCTOR) 20.0 f MHz 250.0: RL log 10 (f/20) 1.0 f MHz 10.0: RL log 10 (f) 10.0 f MHz 20.0: RL 25 (STRANDED CONDUCTOR) 20.0 f MHz 250.0: RL log 10 (f/20) MAXIMUM PROPAGATION DELAY 1.0 f MHz 250.0: PD = /(f) 1/2 = 570 max at 1.0 MHz (PD) - 4 pair cables only 545 max at 10.0 MHz ns/100 m at 20 C 538 max at MHz 536 max at MHz MINIMUM VELOCITY OF VOP% = 1000/(3 x delay ns ) = 58.5% at 1.0 MHz PROPAGATION (VOP) 61.1% at 10.0 MHz Percent 62.0% at MHz 62.1% at MHz MAXIMUM PROPAGATION DELAY SKEW (PDS) - 4 pair cables only ns/100m at 20 C 1.0, 10.0, 100.0, and MHz: 45 Table Continued on Next Page

13 -A11- Table Continued CATEGORY 6 Propagation delay skew between all pair combinations is not to vary more than ± 10 ns from the 20 C results when measured at 40 C and 60 C. MINIMUM LONGITUDINAL 1.0 f MHz 250 CONVERSION LOSS (LCL) LCL log(f/100) db 1.0 MHz MINIMUM LONGITUDINAL 150 khz - Currently, this test is not required but, CONVERSION TRANSFER LOSS (LCTL) at client request, it will be conducted db 1.0 MHz - for information purposes Transverse Conversion Loss (TCL) 1.0 f MHz 250 db TCL log (f/100) 1 MHz 40 4 MHz 40 8 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz 26.0 Equal Level Transverse Conversion 1.0 f MHz 30.0 => Log (f) Transfer Loss (ELTCTL) 30.0 < f 250 => not specifie Table Continued on Next Page

14 -A12- Table Continued CATEGORY 6 db 1 MHz MHz MHz MHz MHz MHz MHz MHz 5.5 CATEGORY 6A 24 through 22 AWG Unshielded (UTP) and Shielded (ScTP/FTP/STP) Cables employing one or more pairs comply with the requirements in TIA/EIA 568B.2-10 Required cable surface marking: Verifie (UL) Category 6A TIA/EIA-568-B.2-10 Required patch cable surface marking: Verifie (UL) Category 6A TIA/EIA-568-B.2-10 Patch Cable CAT may be used in place of Category TIA/EIA-568-B.2-10 may be omitted. Insertion Loss (Attenuation) 1.82 f f / f db 1) Elevated Temp 40C & 60C for UTP and ScTP/FTP/STP 2) UTP - 0.4% increase per degree C from 20C through 40C 3) UTP - 0.6% increase per degree C from 40C through 60C 4) ScTP/FTP/STP - 0.2% increase per degree C from 20C through 60C 5) Stranded conductor Cable has 1.2% de-rating factor UTP - 0.4% increase per degree C from 20C through 40C UTP - 0.6% increase per degree C from 40C through 60C ScTP/FTP/STP - 0.2% increase per degree C from 20C through 60C 6) Work Area Cables shall not be greater than 8 meters (25.7 feet) if a 1.5 de-rating factor is used. Pair to Pair Near End Crosstalk Loss (NEXT) log(f/100) db Power Sum NEXT (PSNEXT) log(f/100) db Attenuation to Crosstalk Ratio Far (ACRF) [a.k.a ELFEXT] log(f/100) db Power Sum Attenuation to Crosstalk Ratio Far (PSACRF) [a.k.a PSELFEXT] log(f/100) db Return Loss (Solid Conductor Cable): 1 f< log(f) db, 10 f<20 25 db, 20 f 500 = 25-7Log(f/20) db Return Loss (Stranded Conductor Cable): 1 f< log(f) db, 10 f<20 25 db, 20 f 500 = Log(f/20) db MHz Attenuation NEXT PSNEXT ACRF PSACRF RL RL (Stranded Conductor Cable) db db db db db db db Table Continued on Next Page

15 -A13- Table Continued CATEGORY 6A 24 through 22 AWG Unshielded (UTP) and Shielded (ScTP/FTP/STP) Propagation Delay f ns/100m Propagation Delay Skew For all frequencies from 1 to 500 MHz shall not exceed 45 ns at 20C, 40C and 60C. Propagation Delay Skew between all pairs shall not vary more than ± 10 ns Transverse Conversion Loss (TCL) log(f/100) db Equal Level Transverse Conversion Transfer Loss (ELTCTL) log(f/100) db (Test frequency range from 1 through 30 MHz) DC Resistance Unbalance The resistance unbalanced between the two conductors of any cable shall not exceed 4 % Power Sum Alien NEXT (PSANEXT) log(f/100) db Power Sum Alien Attenuation to Crosstalk Ration Far (PSAACRF) log(f/100) db MHz Propagation Propagation Delay Skew TCL ELTCL PSANEXT PSAACRF Delay ns ns db db db db HYBRID CABLES: see construction & marking requirements for Construction B under the heading Mixed Conductor Contructions These cables consist of two or more jacketed members with an overall jacket. BUNDLED CABLES: see construction & marking requirements for Constructions A and C under the heading Mixed Conductor Contructions These cables consist of two or more jacketed members bound together by a binder tape or thread, or laid fla and parallel joined by an interconnecting web. Category 3-5E hybrid/bundled cables shall comply with the Power Sum NEXT loss requirements for any disturbed pair and all pairs external to that pair s jacket within the cable. In addition, each jacketed member shall comply with the specifie performance requirements for that individual member. NEXT f = NEXT (0.772) - 15 log 10 (f/0.772) [Category 3-5E hybrid/bundled cables]

16 -A14- Using the above formula, the hybrid/bundled Power Sum NEXT loss shall be 3 db better than the specifie pair-to-pair NEXT loss throughout the range of frequencies noted below for the Category. Calculated Power Sum values that are greater than 65 db shall not be used to determine power sum compliance. Category 3 Cables (772 khz through 16.0 MHz) The NEXT value at 772 khz shall be 43 db for Category 3. Category 4 Cables (772 khz through 20.0 MHz) The NEXT value at 772 khz shall be 58 db for Category 4. Category 5 Cables (772 khz through MHz) The NEXT value at 772 khz shall be 64 db for Category 5. Category 5E Cables (772 khz through MHz) The NEXT value at 772 khz shall be 65 db for Category 5E. Category 6 hybrid/bundled cables shall comply with the Category 6 transmission requirements specifie in this bulletin. Additionally, hybrid/bundled cables shall comply with the total power sum NEXT loss for any disturbed pair from all pairs internal and external to that pair s jacket within the hybrid/bundled cable, through the range of frequencies noted below for the category, shall not exceed the values using the following formula: PSNEXT hybrid/bundled, all pairs log (f/100) Near-end crosstalk (NEXT) measurements shall be determined using the following formula: NEXT log (f/100) Category 6 cables (0.772 through MHz) Calculated PSNEXT loss limit that exceeds 65 db shall revert to a limit of 65 db. QUALIFICATION FOR MARKING To obtain verificatio for cable performance categories, a manufacturer shall submit samples of cable for testing. The cable will be tested and the data used to determine the appropriate Performance Category Designation. TEST METHODS AND EQUIPMENT Except for characteristic impedance and structural return loss, UL conducts all tests in accordance with the latest revision of the American Society for Testing and Materials Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable, ASTM D 4566.

17 This is generated text for figtxt SUBJECT 444 -A15- This will include d-c conductor resistance, d-c resistance unbalance, pair-to-ground capacitance unbalance, attenuation, power sum and worst pair near-end crosstalk, propagation delay, and other tests as applicable and specified Characteristic impedance and structural return loss will be determined in accordance with Method 3 of the latest revison of ASTM D FOLLOW-UP SERVICE PROGRAM The Follow-Up Program for this Verificatio Service is documented in the form of Follow-Up and Inspection Instructions (FUII). The program consists of Follow-Up Examinations on a periodic basis by the UL Representative, Factory Testing of a representative portion of production by the manufacturer, and Follow-Up testing at UL of samples selected by the UL Representative. UL Representative s Examination and Testing The UL Representative shall visit the manufacturer on a periodic basis, based on label usage. During each inspection, the UL Representative shall examine all production bearing or intended to bear the Verificatio Marking. This will include a detailed examination of the product and witnessing of the manufacturer s conduct of all required testing for the performance category being examined. Follow-Up Tests at UL Quarterly, the UL Representative shall select samples to be forwarded to UL for Follow-Up tests at UL. The selected samples shall be subjected to all of the tests required for the performance category of the cable. During this sample selection, a sample from each performance category will be selected. Testing by the Manufacturer During the New-Work Investigation, the manufacturer shall submit for review by UL the manufacturer s internal inspection program for ensuring compliance of various parameters (for example, Near-End Crosstalk, Attenuation, Characteristic Impedance, and Structural Return Loss) with the specification for each Category. This internal inspection program shall also include an identificatio of the apparatus used for conducting these tests, the calibration interval of this equipment, and the internal procedures (document numbers) used by the manufacturer to conduct the individual tests. If acceptable, the manufacturer s inspection program shall be incorporated into the Follow-Up Service Procedure. Compliance with this plan will be checked by the UL Representative during Follow-Up Inspection visits. In conjunction with the sampling program submitted by the manufacturer, UL will require a minimum sampling program of one (1) reel for every twenty (20) master reels of cable produced, with the footage of the master reels not exceeding 300,000 feet. The manufacturer will be required to subject the selected reel to the required tests, and the test results shall be recorded and made available for review by the UL Representative during routine Follow-Up Inspections. Verification Markings (Labels) Shown below are the formats for Category labels.

18 -A16- Label 1 Label 2

19 -A17- Label 3 Label 4

20 -A18-1 Issue Number assigned by UL The company name, logo, trademark, or other identificatio acceptable to UL, which relates to the identity of the Verifie company, must be included in addition to the text described in the above illustrations. Subscribers may not use the Verificatio Marking (Label) until UL has authorized its use. The Performance Category Marking is not required to appear in the Verificatio Marking (Label) text. This applies to all constructions under the Performance Category Program (regular twisted-pair constructions, and mixed-category constructions described below). Subscribers will be required to reference the Performance Category in the Engineering Markings supplied with each reel (tags, cartons, etc.). In addition, the Performance Category marking will be required to appear in the cable surface-print legend. Please note that the text of Label 2 will retain the reference to the actual Performance Category, since this is a unique label for two specifi cable types. The use of the Performance Verificatio Mark, shown as Labels 2 and 4, for products which are both Listed and Verifie is optional. Subscribers are permitted to continue using the label format shown in Labels 1 and 3 above, at their option. Orders for the new verificatio markings (labels) may be placed with the UL Label Center that normally services your manufacturing facility. References shall be made to Label Account 444, Class 6 for Labels 1 and/or 2 and Label Account 444, Class 13 for Labels 3 and/or 4. Mixed-Category Constructions UL s performance category program includes provision for the mixed-category constructions described below: Please note that subscribers must obtain Procedure authorization from UL s Conformity Assessment Services before producing and labeling these mixed-category constructions. CONSTRUCTION A - This construction consists of two or more jacketed members, laid parallel and joined by a web. Each member functions as a separate cable and is assigned a separate performance category, which may or may not be the same performance category as the other members of the cable. The jacket of each member in this construction shall be surface printed with the performance category marking for the appropriate category. If each member within this parallel construction is the same performance category, the surface marking text needs to be applied to only one member. Each category is to be identifie on the tag/reel markings along with its associated construction (e.g., Category 3-2pr 24 AWG CMP ). It is not necessary to provide the quantity of each category contained within this mixed- category construction. CONSTRUCTION B (performance requirements as define on pages A13 and A14) - This construction consists of two or more jacketed members that are cabled together and then covered by an overall jacket. Each member is assigned a separate performance category, which may or may not be the same performance category as the other members of the cable. The jacket of each member in this construction shall be surface printed with the performance category marking for the appropriate category. In addition, the overall jacket shall have a performance category marking for each member contained in the cable. However, the quantity of each performance category is not required to appear in the overall jacket surface print. Each category is to be identifie on the tag/reel markings along with its associated construction (e.g., Category 3-2pr 24 AWG CMP ). It is not necessary to provide the quantity of each category contained within this mixed-category construction.

21 -A19- CONSTRUCTION C (performance requirements as define on pages A13 and A14) - This construction consists of two or more fully surface printed, finishe jacketed members that are cabled together and then held with a binder tape applied helically around the cable. A Construction C cable is not to contain Construction A members. Each member is assigned a separate performance category, which may or may not be the same performance category as the other members of the cable. The jacket of each member in this construction shall be surface printed with the performance category marking for the appropriate category. It is intended that the verificatio marking (label) applied to the reel/tag will account for the total footage of cable (members) within the assembly, and not the total length of the assembly - that is, in a cable containing three 1000-foot lengths, 3000 feet of verificatio markings (labels) are to be applied to the reel/tag. Each category is to be identifie on the tag/reel markings along with its associated construction (e.g., Category 3-2pr 24 AWG CMP ). It is not necessary to provide the quantity of each category contained within this mixed-category construction.

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