3rd MAINTENANCE OF QUALIFICATION TESTING OF SCREENED … · 2014. 12. 12. · Page 3 of 39 3P Project No. 1143859 1. IDENTIFICATION Project No.: 1143859 Subject: 3rd Maintence of

Independent Testing - For End User Confidence

3 MAINTENANCE OF QUALIFICATION TESTING OFrd

SCREENED CATEGORY 6 ISO/IEC, EN & TIA CONNECTING HARDWARE ACCORDING TO REQUIREMENTS OF

EDITION 2.2 OF ISO/IEC 11801, CENELEC EN 50173-1:2011, ANSI/TIA-568-C.2,2 EDITION IEC 60603-7-5 AND IEC 60512-27-100nd

Manufactured byTelebox Industries Corp.

Screened Keystone Jack, Category 6, RJ 45Telebox Industries Corp. Identification, P/N TB8762Sx

Prepared by Poul Villien

Project No. 1143859 2014.12.05

Page 2 of 39

3P Project No. 1143859

TABLE OF CONTENTS PAGE

1. IDENTIFICATION 3

2. SURVEY OVER THE WORK 4

3. APPLIED SPECIFICATIONS 6

4. CONDITIONS OF TESTING 7

4.1 Connecting Hardware Types covered by the Maintenance ofQualification Testing 7

4.2 Electrical Measurements 7

5. FACTORY INSPECTION 9

5.1 Company Organisation 95.2 Quality Assurance 95.3 Production Facilities 125.4 Final Testing 13

6. SUMMARIZED TEST RESULTS 15

6.1 Return Loss 156.2 Attenuation 166.3 Near End Crosstalk 176.4 Far End Crosstalk 176.5 Input to Output Resistance 186.6 Input to Output Resistance Unbalance 196.7 Current Carrying Capacity 196.8 Propagation Delay 196.9 Delay Skew 206.10 Electromagnetic Performance 206.11 Near End Balance Measured as Transverse Conversion Loss (TCL) 216.12 Far End Balance Measured as Transverse Conversion Transfer Loss (TCTL) 226.13 Transfer Impedance 226.14 Insulation Resistance 236.15 Voltage Proof 23

7. CONCLUSION 24

8. APPENDIX: Data Sheets of Transmission Performance versus Frequency 25

Page 3 of 39


1. IDENTIFICATION

Project No.: 1143859

Subject: 3 Maintence of Qualification Testing of Screenedrd

Category 6 ISO/IEC, EN & TIA Connecting Hardwareaccording to Requirements of Edition 2.2 ofISO/IEC 11801, CENELEC EN 50173-1:2011,ANSI/TIA-568-C.2, 2 Edition IEC 60603-7-5 andnd

IEC 60512-27-100

Connecting Hardware: Screened, Category 6, RJ 45, Keystone Jack

Manufacturer: Telebox Industries Corp.4F, No. 306, Tatung Road, Sec. 1Hsichih-Taipei 221TaiwanR.O.C.

Telebox Industries Corp. Identification: P/N TB8762Sx

PCB Marking: R001-87619 Cat.6

Prepared by: 3P Third Party TestingAgern Allé 3DK-2970 HoersholmDenmark

Email: [email protected]: + 45 45572200Fax: + 45 45765708Homepage: www.3Ptest.dk

Author: Poul Villien

Page 4 of 39


2. SURVEY OF THE WORK

3P has performed re-embedded type of maintenance of qualification testing on sample of screenedCategory 6 keystone jack from Telebox Industries Corp., P/N TB8762Sx. A sample of thekeystone jack has been randomly selected from the final stock of Telebox Industries Corp. at theinspection visit 10 September 2014.th

Maintenance of qualification testing of the selected sample was carried out from October toDecember, 2014.

Testing at 3P has included a Category 6 test programme performed on one selected sample ofkeystone jack. Testing is conducted to verify that the performance of the originally qualifiedkeystone jacks is maintained in the regular production. This means that the followingspecifications stating electrical transmission requirements are covered by the present testing:

• ISO/IEC Edition 2.2 of 11801, Cat. 6• CENELEC EN 50173-1:2011, Cat. 6• ANSI/TIA-568-C.2, Cat. 6• IEC 2 Edition 60603-7-5, Cat. 6nd

• IEC 60512-27-100

Transmission performance of the screened Category 6 ISO/IEC, EN & TIA keystone jack fromTelebox Industries Corp., P/N TB8762Sx, having PC board marking R001-87619 Cat.6 does inevery respect comply with all specified requirements.

The positive conclusion of testing covers all screened products from the qualified production lineof Telebox Industries Corp. having identical PCB circuitry and construction of screen. Presentlythis only includes Telebox Industries Corp. keystone jack,

• P/N TB8762Sx

The company

Telebox Industries Corp.4F, No. 306, Tatung Road, Sec. 1Hsichih-Taipei 221TaiwanR.O.C.

is still qualified at their Hsichih site to produce the connecting hardware conforming with the re-embedded testing technology requirements with a 3P rating as Screened Category 6 ISO/IEC,EN & TIA Connecting Hardware.

The qualification will be valid until failure to pass one of the maintenance of qualification testprogrammes, that will be performed at 12 months intervals.

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The present testing does not include the reliability test programmes specified in ISO/IEC,CENELEC, ANSI/TIA and IEC standards. Only transmission performance is covered by the 3Ptesting. It is assumed that reliability of the keystone jack is adequate to secure safe interconnectionto patch cords throughout a lifetime of normal application of the connecting hardware.

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3. APPLIED SPECIFICATIONS

Transmission performance requirements of the following specifications have been covered by theconnecting hardware testing:

• ISO/IEC Edition 2.2 of Generic Cabling Standard 11801, Cat. 6

• CENELEC Generic Cabling Standard EN 50173-1:2011, Cat. 6

• ANSI/TIA Generic Cabling Standard 568-C.2, Cat. 6

• IEC 2 Edition Connecting Hardware Standard 60603-7-5, Cat. 6nd

• IEC Connecting Hardware Test Standard 60512-27-100

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4. CONDITIONS OF TESTING

4.1 Connecting Hardware Types covered by the Maintenance of Qualification Testing

Maintenance of qualification testing has been carried out on one sample of screened Category 6keystone jack from Telebox Industries Corp., P/N TB8762Sx.


• P/N TB8762Sx

The marking of the PC board was R001-87619 Cat.6.

4.2 Electrical Measurements

The following electrical transmission parameters have been measured for all pairs or combinationof pairs for the tested connecting hardware samples:

• Return loss from 1 MHz - 250 MHz, measured according to the re-embedded test method fromboth sides of the connecting hardware

• Attenuation from 1 MHz - 250 MHz• Pair-pair near end crosstalk from 1 MHz - 250 MHz, measured according to the re-embedded

test method from both sides of the connecting hardware• Pair-pair far end crosstalk from 1 MHz - 250 MHz, measured according to the re-embedded

test method with both signal injection and receiving on each pair• dc resistance• dc resistance unbalance• Current carrying capacity• Propagation delay from 1 MHz - 250 MHz• Delay skew from 1 MHz - 250 MHz• Coupling attenuation and EMC performance from 30 MHz - 1 GHz, recorded for both near

and far end measurements• Near end balance from 1 MHz - 250 MHz, measured as TCL from both sides of the connecting

hardware• Far end balance balance from 1 MHz - 250 MHz, measured as TCTL from both sides of the

connecting hardware• Transfer impedance from 1 MHz - 100 MHz• Insulation resistance• Voltage proof

Page 8 of 39


The following instruments were applied for the electrical measurements:

• HP Network Analyzer, type 8753ES with Internal S-Parameter Test Set• Agilent Network Analyzer, type 8753D with Internal S-Parameter Test Set• BH Electronics Baluns, type 040-0093• 3P Balun, type 3P-600-Cat7• Rohde & Schwarz Absorbing Clamp, type MDS-21• HP Milliohmmeter, type 4338A• Agilent LCR Meter, type 4263B• HP High Resistance Meter, type 4339A• Danbridge Insulation Tester, type JP12A• SMP Data Communications Re-Embedded Salsa Type Test Equipment• 3P Transfer Impedance test equipment

Page 9 of 39


5. FACTORY INSPECTION

The quality assurance and production facilities of the Hsichih site of Telebox Industries Corp.have been approved by 3P during the inspection visit 10 September 2014. It is concluded by 3Pth

that generally quality assurance, working procedures, capabilities, production facilities and extentof end product testing are acceptable to secure a continous production of a high quality ScreenedCategory 6 ISO/IEC, EN & TIA Connecting Hardware.

The results of the factory inspection is described in the following 4 sections.

5.1 Company Organisation

The overall company organisation plan of Telebox Industries Corp. is presented in page 11.

The following key management positions apply at Telebox Industries Corp.:

• Managing Director and General Manager: Ray Chang• Quality Manager: Alex Chang• Production Control Manager: Daniel Lee• Production Manager: Daniel Lee• Production Control Deputy Manager: John Huang• Research & Development Manager: David Wu• Electronic Manager: David Wu• Sales Manager: Ray Chang

It is concluded that quality assurance is in a higher level in organisation than production.

5.2 Quality Assurance

Quality manager of Telebox Industries Corp. is Alex Chang.

All major quality issues are discussed in the quality committee, which consists of the departmentmanagers. The quality committee meets on a monthly basis under leadership of the qualitymanager. The quality committee is the forum in which general discussions and final conclusionof quality issues are taken.

Telebox Industries Corp. has quality assurance approved according to ISO 9001:2008. Approvalwas granted by TÜV Rheinland Group, Certificate No. 01 100 822 043836 dated 5 January 2012.th

Next update of approval is scheduled before 4 January 2015.th

Environmental management system is approved according to ISO 14001:2004. Approval wasgranted by TÜV Rheinland Group, Certificate No. 01 104 822 043836 dated 8 April 2014. Nextth

update of approval is scheduled before 7 April 2017.th

The quality manual was evaluated by 3P at the inspection visit without giving cause to remarks.

Page 10 of 39


Traceability of connecting hardware performance applies at Telebox Industries Corp. by partnumber and the production week printed on the printed wiring board. Lot number of deliveredconnectors is used for traceability of all contained single components.

The quality assurance system at Telebox Industries Corp. is recognized by the followingcompanies and organisations:

• TÜV Rheinland Group• 3P

Quality records of subsuppliers are kept and maintained by Telebox Industries Corp. A maximum3 % failure rate applies for all delivered materials and components. All supplied printed wiringboards are identified by part number, and with producer code and production week.

Plated contact wires and IDC contacts are delivered with certificates for plating and materials,and are containing test data for gold and nickel thicknesses and base metal composition. The firstdelivery is identified by a full quality report. Later deliveries includes thickness data only. Allsupplied contact components are stored using humidity and temperature controlled conditions.

Batch size of printed citcuit boards is typically between 1000 and 5000 pieces.

Batch sizes of produced connectors are 25 pcs for patch panels and 500 pcs for keystone jacks.Visual inspection of printed wiring boards for each individual connector batch is carried outinitially on two patch panel printed wiring boards and 40 keystone jack printed wiring boards.

Printed wiring boards for soldering and press-fit mounting are identified by different numbers dueto the more strict requirements to hole diameter tolerances applicable for press-fit mountingboards.

All stored components are scrapped if not used after five years. The year is identified by a separatecolour coding and each quater is identified by a separate number.

A new type of connector and each new batch of printed wiring board are approved by completeelectrical measurements of two mounted samples. The first sample is a first production sample andthe second sample is randomly selected from the first connector production batch. The printedwiring board for the first production sample is taken randomly from the printed wiring boarddelivery

All measuring and test equipment were properly identified with a tag showing instrument numberand calibration expiration date. Calibration data were properly filed. Calibration is carried out byexternal source (company IPE). Calibration of network analysers is done every 24 months.

12 persons (21 % of total staff) and equipment operators are working with quality assurance andquality control at Telebox Industries Corp.

Incoming control

External sub-suppliers are only used for printed circuit boaeds, plated contact wires and non-critical connector parts.

Page 11 of 39


Company Organisation Plan for Telebox Industries Corp.

Page 12 of 39


Telebox Industries Corp. has one main plated contact and one main printed wiring board supplier.Telebox Industries Corp. has close cooperation with this printed circuit supplier for continuousimprovement of quality.

Incoming inspection and approval of printed wiring boards includes dimensional measurementsand testing of hole diameters. Furthermore one sample is mounted with components, soldered andmeasured in permanent link with Fluke DTX 1800 field tester. The printed wiring board deliveryis approved after passing of visual, dimensional and electrical requirements.

Internally produced, pressure moulded and stamped components, are also included in the incominginspection system. Some pressure moulded parts are delivered from external suppliers.

Adhesion of contact platings is verified for each batch by bending of contacts and inspection forflaking of platings.

Traceability of incoming components is possible by the order number.

A first-in /first-out principle applies at Telebox Industries Corp.

5.3 Production Facilities

All production of connecting hardware is carried out at the Hsichih factory of Telebox IndustriesCorp.

Before production, the production leader verifies that all components and materials are availablefor the complete production process.

Daily reports of rejection rate and failures are made for each internal production test step.

Pressure moulding of plastic parts and stamping of metallic parts are applied at Telebox IndustriesCorp. Dimensional measurements and visual control are carried by the operator on samples fromthe running production.

Telebox Industries Corp. has manual and automatic assembly lines for keystone jacks and patchpanels. A sequence of mounting, soldering and visual inspection of each individual type of contactand connector part is applied. Operator training, and detailed, illustrated instruction guides areapplied for each production process. dc resistance testing of each port of all finished connectorsis applied.

Keystone jacks are generally produced using hand mounting and automatic press-fit mounting ofRJ 45 and ID contacts. Patch panels are produced using hand mounting of components, wavesoldering of contacts at 275°C and hand soldering of screen contacts.

A lead free soldering process is applied.

A 100 % control for visual appearance, for shorts and for interupted connections is carried outafter the assembly operation.

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5.4 Final Testing

All 3P qualified connectors have performance verified using re-embedded technology.

Evaluation of internal testing data demonstrated generally fine performance.

Any failing components are offered to the customer with documented performance data.

Results of testing are stored in paper form together with the tested sample.

Comparative re-embedded measurements at Telebox Industries Corp. and 3P of a specific Cat. 6keystone jack have earlier been carried out for return loss, and in connection with the presentinspection visit for forward and remote near end crosstalk. The measurements showed finecorrelation between 3P and Telebox Industries Corp. for both return loss and near end crosstalk.

The below sampling data for final testing at Telebox Industries Corp. applies, i.e. one sample fromeach new PCB delivery and one sample from each produced lot.

• Near and Far End Crosstalk for all paircombinations, and Insertion Loss,Return Loss, TCL and TCTL for all pairs: One samle from each batch and the first

produced mounted sample from each PCBdelivery

• Coupling Attenuation measurements: Type testing• Transfer Impedance measurements: Type testing• High Voltage testing and Insula-

tion Resistance measurements: Type testing• dc resistance: 100 %• short circuits: 100 %

End product measurement of high frequency performance is done in the testing laboratory.

The following instruments were applied at Telebox Industries Corp. for performing the ongoingquality assurance testing:

High Frequency Testing:

• HP Network Analyzer, type 8753E (2 units)• HP multiport test set, type Z5623A• Agilent ENA Network Analyzer, type E5062A (2 units)• BH Electronics Baluns, types 040-0092 and 040-0093• North Hills baluns, type 0322 BFX• 3P Baluns, type 3P-250-Cat6-C• OCC fixture for Salsa type re-embedded measurements• Rohde & Schwarz absorbing clamp, type MDS-21• Transfer impedance test equipment, type 3P construction• Fluke field tester, type DTX 1800 (3 units)• Fluke field tester, type DXS 5000• Fluke M12 Adaptor, type DTX-CHA021

Page 14 of 39


dc Resistance, Capacitance, High Voltage and Short Circuit Testing:

• Microtest dc test equipment, type CT-8768• Microtest dc test equipment, type CT-8687• Wayne Kerr LCR meter, type 4273• Chen Hwa milliohmmeter, type 502AC• Microtest AC/DC withstand voltage / insulation tester, type 7640

Visual Control:

• CNC video measuring system, type KAM-3020• Video measurng system, type SVP-2032

Mechanical Testing:

• Push-pull gauges, types AK5 and DGT-50• Mating cycle tester, type ux-51

Climatic Testing:

• KSON programmable temperature and humidity chamber, type THS-B4T-150

Programmable ac Power Supply:

• Power Electronic, type APR-6050

Material Analysis for RoHS compliance:

• X-ray metal analyser, type OXFORD X-MET 3000TXR

X-Ray Material Analysis:

• Fischer, type XULM-XYm

Page 15 of 39


6. SUMMARISED TEST RESULTS

Maintenance of qualification testing has been carried out on one sample of screened Category 6keystone jack from Telebox Industries Corp., P/N TB8762Sx. Measurements have been made to250 MHz.

Summarised test results are presented in the following clauses, while recordings of electricalperformance versus frequency are found in the appendix. Tables in the present section generallyinform about the headroom to a specified worst case limiting function that is given under the tableconcerned. The various recordings of electrical performance versus frequency in the appendixcontain, in red colour, the limiting functions specified for the parameters in question.

Transmission performance measurements have been carried out using the re-embedded testconfigurations specified in the ANSI/TIA-568-C.2 and IEC 60512-27-100 standards. This meansthat the following two conditions are covered by the testing:

1. All noise parameters are measured from both the RJ 45 and connecting block sides (for far endcrosstalk with signal injection and receiving on each pair of a specific pair combination). Forreasons of simplification only the worst case recordings of these two measurements arepresented in the appendix. Summarized results of all bi-directional measurements are presentedin the tables of the relevant sub-clause.

2. Measurements of near end crosstalk have been concluded for all specified low and high plugvectors. All of these specified low and high plug recordings are presented in the appendix. Eachrecording includes the worst case result of the two sides of the connecting hardware.Summarized results of all low and high plug vector calculations are presented in the table ofclause 6.3.

A "low plug" is in the present report understood to represent a plug having the lowest numericalNEXT value, i.e. the "worst" NEXT performance, while a "high plug" is understood to representa plug having the highest numerical NEXT value, i.e. the "best" NEXT performance.

The applied test plug for re-embedded measurements is Salsa type, i.e. PCB based. Both phaseangle and absolute value of the applied plug is in compliance with the requirements of thestandards. The re-embedded measurement set-up has been purchased from SMP DataCommunications.

6.1 Return Loss

Summarised results of testing are found in table 6.1, and include all four tested pairs measuredfrom both sides of the connecting hardware. Worst case recordings of return loss versus frequencyfrom both sides of the connecting hardware are found in page 26 of the appendix.

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Table 6.1 Summarised Results of Return Loss Mea-surements from 1 MHz to 250 MHz

PAIR RETURN LOSSMARGIN TO LIMIT (dB)1,2

1/23/64/57/8

12,4 ( 8,4)14,9 (14,5)13,9 ( 8,5) 4,9 (10,1)

: Return Loss requirements are defined by the function:1

64-20log(f) dB,

where f is frequency in MHz. Calculated requirements below30 dB are equaled to this value.

: The first value is measurement from RJ 45 plug side, while the2

corresponding measurement from connecting block side ispresented in brackets.

It is concluded from table 6.1 and return loss recordings in page 26 that return loss complies withthe specified Category 6 requirements in the complete frequency range from 1 MHz to 250 MHzfor both sides of the connecting hardware.

6.2 Attenuation

Summarised results of testing are found in table 6.2, and include all four tested pairs measuredfrom one side of the connecting hardware. Recordings of attenuation versus frequency are foundin page 27 of the appendix.

Table 6.2 Summarised Results of Attenuation Measurements from1 MHz to 250 MHz

PAIR MAX. ATTENUATION (dB)1 ATTENUATIONMARGIN TOLIMIT (%)1

1MHz

10MHz

100MHz

200MHz

250MHz

1 - 250MHz

1/23/64/57/8

0,000,000,000,00

0,010,010,010,01

0,050,050,060,06

0,080,080,100,09

0,090,100,130,11

71676066

Specified 0,10 0,10 0,20 0,28 0,32 0

: Attenuation requirements are defined by the function: 1

0,02 dB,

where f is frequency in MHz. Calculated requirements below 0,1 dB are equaled to thisvalue.

Page 17 of 39


It is concluded from table 6.2 and attenuation recordings in page 27 that attenuation complies withthe specified Category 6 requirements in the complete frequency range from 1 MHz to 250 MHz.

6.3 Near End Crosstalk

Summarised results of testing are found in table 6.3, and include all six combinations of thefour tested pairs measured from both sides of the connecting hardware. Worst case recordings ofpair-pair near end crosstalk versus frequency for both low, low central, high central and high limitplug measurements, each covering both sides of the connecting hardware, are found in pages 28 -34 of the appendix.

Table 6.3 Summarised Results of Pair - Pair Near End Crosstalk Mea-surements from 1 MHz to 250 MHz

COMBI-NATION

OF PAIRS

PAIR - PAIR NEXT MARGIN TO LIMIT (dB)1,2

Lowlimit plug

Low centrallimit plug

High centrallimit plug

Highlimit plug

1/2 - 3/61/2 - 4/51/2 - 7/83/6 - 4/53/6 - 7/84/5 - 7/8

4,2 ( 3,5) 5,0 ( 3,4)15,4 (13,5) 2,9 ( 3,7) 0,6 ( 6,2) 3,2 ( 3,5)

- ( - ) - ( - ) - ( - )5,0 (7,3) - ( - ) - ( - )

- ( - ) - ( - ) - ( - )5,8 (15,0) - ( - ) - ( - )

3,4 ( 8,0)4,7 ( 4,7)5,8 ( 5,9)5,7 ( 8,1)2,7 ( 9,7)9,7 (11,3)

: Pair-Pair Near End Crosstalk requirements are defined by the functions:1

For all pair combinations except 3/6 - 4/5, low and high limit plugs: 94,0-20log(f) dBFor 3/6 - 4/5, low and high limit plugs: 92,5-20log(f) dB,

where f is frequency in MHz. Calculated requirements more strict than 75 dB are equaledto this value.

: The first value is measurement from RJ 45 plug side, while the corresponding measurement2

from connecting block side is presented in brackets. For pair combinations 1/2-3/6, 1/2-4/5, 1/2-7/8, 3/6-7/8 and 4/5-7/8 the central limit plugs measurements are not specified.

It is concluded from table 6.3 and pair - pair near end crosstalk recordings in pages 28 - 34 thatpair - pair near end crosstalk complies with the specified Category 6 requirements in the completefrequency range from 1 MHz to 250 MHz for all six combinations of plug performance limit andsides of connecting hardware.

Documentation of power sum near end crosstalk has not been included in the present testing asonly informative limits are proposed in ISO/IEC 11801 and ANSI/TIA-568-C.2.

6.4 Far End Crosstalk

Summarised results of testing are found in table 6.4 for pair-pair far end crosstalk and include all2×6 combinations of the four tested pairs. Worst case recordings of pair-pair far end crosstalkversus frequency covering all 2×6 combinations of the four tested pairs are found in page 35 ofthe appendix.

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Table 6.4 Summarised Results of Pair - Pair Far EndCrosstalk Measurements from 1 MHz to250 MHz

COMBINATIONOF PAIRS

PAIR - PAIR FEXT MARGINTO LIMIT (dB)1,2

1/2 - 3/61/2 - 4/51/2 - 7/83/6 - 4/53/6 - 7/84/5 - 7/8

8,2 (10,0)22,2 (23,2)28,2 (28,8) 8,6 (12,6) 8,5 ( 8,7)14,2 (14,1)

: Pair-Pair Far End Crosstalk requirements are defined by the1

function:

83,1-20log(f) dB,

where f is frequency in MHz. Calculated requirements more strictthan 75 dB are equaled to this value.

: The first value is measurement with signal injection on the first of2

the listed pairs, while the corresponding measurement with signalinjection on the second of the listed pairs is presented in brackets.

It is concluded from table 6.4 and pair - pair far end crosstalk recordings in page 35 that pair - pairfar end crosstalk complies with the specified Category 6 requirements in the complete frequencyrange from 1 MHz to 250 MHz for all 2×6 pair combinations.

Documentation of power sum far end crosstalk has not been included in the present testing as onlyinformative limits are proposed in ISO/IEC 11801 and ANSI/TIA-568-C.2.

6.5 Input to Output Resistance

Results of testing are found in table 6.5, and include all 8 tested conductor paths measured fromone side of the connecting hardware.

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Table 6.5 Results of Input to Output Resis-tance Measurements

CONDUCTORPATH

INPUT TO OUTPUTRESISTANCE

(mΩ)

12364578

4044355553453842

Specified Max. 200

It is concluded from table 6.5 that input to output resistance complies with the specifiedCategory 6 requirements.

6.6 Input to Output Resistance Unbalance

The worst case value of input to output resistance unbalance is 21 mΩ, that complies with thespecified max. 50 mΩ.

It is concluded that input to output resistance unbalance complies with the specified Category 6requirements.

6.7 Current Carrying Capacity

Current carrying capacity has been measured by subjecting each conductor and the screen to asimultaneous exposure of 0,75 A at 60°C for 30 minutes.

The increase in temperature was 6°C, that is in compliance with the specified max. 30°C.Continuity of conductor and screen paths was maintained. No degradation of connecting hardwarewas observed after the testing.

It is concluded that current carrying capacity complies with the specified Category 6 requirements.

6.8 Propagation Delay

Summarised results of testing are found in table 6.8, and include all four tested pairs measuredfrom one side of the connecting hardware.

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Table 6.8 Summarised Results of Propaga-tion Delay Measurements from1 MHz to 250 MHz

PAIR PROPAGATION DELAY(nsec)

1/23/64/57/8

Max. 0,6Max. 0,6Max. 0,7Max. 0,6

Specified Max. 2,5

It is concluded from table 6.8 that propagation delay complies with the specified Category 6requirements in the complete frequency range from 1 MHz to 250 MHz.

6.9 Delay Skew

Summarised results of testing are found in table 6.9, and include all six combinations of the fourtested pairs measured from one side of the connecting hardware.

Table 6.9 Summarised Results of Delay SkewMeasurements from 1 MHz to250 MHz

COMBINATION OF PAIRS

DELAY SKEW (nsec)

1/2 - 3/61/2 - 4/51/2 - 7/83/6 - 4/53/6 - 7/84/5 - 7/8

Max. 0,06Max. 0,07Max. 0,04Max. 0,01Max. 0,03Max. 0,03

Specified Max. 1,25

It is concluded from table 6.9 that delay skew complies with the specified Category 6 require-ments in the complete frequency range from 1 MHz to 250 MHz.

6.10 Electromagnetic Performance

Summarised results of coupling attenuation measurements are found in table 6.10, and includeall four tested pairs recorded for both near and far end measurements. The connecting hardwareis connected with individual foil and overall braid screened horizontal cable and RJ 45 plugterminated overall foil and braid screened flexible cable. Worst case recording of electromagneticperformance is found in page 36 of the appendix.

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Table 6.10 Summarised Results of CouplingAttenuation Measurements

PAIR COUPLING ATTENUATIONMARGIN TO LIMIT (dB)1,2

1/23/64/57/8

35 (32)30 (25)30 (29)32 (26)

: Coupling attenuation requirements are defined by the1

functions:

45 dB between 30 MHz and 100 MHz 45-20log( ) dB between 100 MHz and 1 GHz,

where f is frequency in MHz.: The first value is measurement from near end, while the2

corresponding measurement from far end is presented inbrackets.

It is concluded from table 6.10 and coupling attenuation recordings in page 36 that couplingattenuation complies with the specified Category 6 requirements when recorded for both near andfar end measurements.

6.11 Near End Balance Measured as Transverse Conversion Loss (TCL)

Summarised results of testing are found in table 6.11 for balance measured as TCL, and includeall four tested pairs measured from both sides of the connecting hardware. Worst case recordingsof TCL versus frequency from both sides of the connecting hardware are found in page 37 of theappendix.

Table 6.11 Summarised Results of Balance(TCL) Measurements from 1 MHzto 250 MHz

PAIR BALANCE (TCL) MARGINTO LIMIT (dB)1,2

1/23/64/57/8

27,4 (28,9)13,4 ( 4,2)10,9 ( 5,9)20,3 (15,0)

: Requirements to Balance, measured as TCL, are defined1

by the function:

68 - 20log(f) dB,

where f is frequency in MHz. Calculated requirementsmore strict than 40 dB are equaled to this value.

: The first value is measurement from RJ 45 plug side,2

while the corresponding measurement from connectingblock side is presented in brackets.

Page 22 of 39


It is concluded from table 6.11 and TCL recordings in page 37 that transverse conversion loss(near end balance) complies with the specified Category 6 requirements in the complete frequencyrange from 1 MHz to 250 MHz for both sides of connecting hardware.

6.12 Far End Balance Measured as Transverse Conversion Transfer Loss (TCTL)

Summarised results of testing are found in table 6.12 for balance measured as TCTL, and includeall four tested pairs measured from both sides of the connecting hardware. Worst case recordingsof TCTL versus frequency from both sides of the connecting hardware are found in page 38 of theappendix.

Table 6.12 Summarised Results of Balance(TCTL) Measurements from1 MHz to 250 MHz

PAIR BALANCE (TCTL) MARGINTO LIMIT (dB)1,2

1/23/64/57/8

23,4 (20,4) 5,7 ( 5,3) 6,1 ( 5,9)13,9 (11,1)

: Requirements to Balance, measured as TCTL, are1

defined by the function:

68 - 20log(f) dB,

where f is frequency in MHz. Calculated requirementsmore strict than 40 dB are equaled to this value.

: The first value is measurement from RJ 45 plug side,2

while the corresponding measurement from connectingblock side is presented in brackets.

It is concluded from table 6.12 and TCTL recordings in page 38 that transverse conversiontransfer loss (far end balance) complies with the specified Category 6 requirements in thecomplete frequency range from 1 MHz to 250 MHz for both sides of connecting hardware.

6.13 Transfer Impedance

Summarised results of testing are found in table 6.13, and include measurement of the connectinghardware without ageing. Transfer impedance is measured on a sample connected with individualfoil and overall braid screened plug terminated flexible cable and individual foil and overall braidscreened horizontal cable. Recording of transfer impedance is found in page 39 of the appendix.

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Table 6.13 Summarized Results of Transfer Im-pedance Measurement

CONDITION TRANSFER IMPEDANCEMARGIN TO LIMIT (%)1

Initialmeasurement

1

: Transfer Impedance requirements are defined by the1

functions:

40 mΩ between 1 MHz and 4 MHz 20·f mΩ between 4 MHz and 100 MHz,

where f is frequency in MHz.

It is concluded from table 6.13 and transfer impedance recording in page 39 that transferimpedance complies with the specified Category 6 requirements. Transfer impedancerequirements have earlier been successfully passed using the worst case type of horizontal cablescreen termination, i.e. without braid screen. The present testing gives a result that is similar withwhat is found in this earlier testing and the construction of the screen and screen termination areunchanged compared with earlier tested samples. It is therefore concluded that transfer impedancerequirements are also passed for horizontal cables without overall braid screen.

Measurement of transfer impedance after ageing is not included in the present testing, but fineperformance is concluded from comparison with results of the originally performed qualificationtesting. The now made evaluation of screen construction and transfer impedance show perfor-mance equal to what was found in the qualification testing. This confirms that screeningperformance will not be significantly degraded by ageing at 70EC for 21 days.

6.14 Insulation Resistance

The worst case insulation resistance between any combinations of conductors is 24.000.000 MΩ,that is in compliance with the specified min. 100 MΩ. The applied test voltage was 500 Vdc.

It is concluded that insulation resistance complies with the specified Category 6 requirements.

6.15 Voltage Proof

No flash-over, breakdown or other deterioration was found by application of 1000 Vdc betweenany combination of conductors and by application of 1500 Vdc between screen and conductors.

It is concluded that the voltage proof performance complies with the specified Category 6requirements.

Page 24 of 39


7. CONCLUSION

A sample of screened Category 6 keystone jack from Telebox Industries Corp. has been subjectedto re-embedded type of maintenance of qualification testing according to 3P requirements forScreened Category 6 ISO/IEC, EN & TIA Connecting Hardware.

Transmission performance of the screened Category 6 keystone jack from Telebox IndustriesCorp., P/N TB8762Sx having PC board marking R001-87619 Cat.6, does in every respect complywith the requirements of the following international standards:

• ISO/IEC Edition 2.2 of 11801, Cat. 6• CENELEC EN 50173-1:2011, Cat. 6• ANSI/TIA-568-C.2, Cat. 6• IEC 2 Edition 60603-7-5, Cat. 6nd

• IEC 60512-27-100


• P/N TB8762Sx

The company

Telebox Industries Corp.4F, No. 306, Tatung Road, Sec. 1Hsichih-Taipei 221TaiwanR.O.C.

is still qualified at their Hsichih site to produce the connecting hardware conforming with the re-embedded testing technology requirements with a 3P rating as Screened Category 6 ISO/IEC, EN& TIA Connecting Hardware.

The qualification will be valid until failure to pass one of the maintenance of qualification testprogrammes, that will be performed at 12 months intervals.

The present testing does not include the reliability test programmes specified in ISO/IEC,CENELEC, ANSI/TIA and IEC standards. Only transmission performance is covered by the 3Ptesting. It is assumed that reliability of the keystone jack is adequate to secure safe interconnectionto patch cords throughout a lifetime of normal application of the connecting hardware.

Page 25 of 39


8. APPENDIX: Data Sheets of Transmission Performance versus Frequency

All characteristic and most critical recordings of transmission performance are presented in thefollowing way:

Page 26 Worst case recordings of return loss for all four pairs between 1 MHz and250 MHz.

Page 27 Recordings of attenuation for all four pairs between 1 MHz and 250 MHz.

Pages 28 - 34 Worst case recordings of pair-pair near end crosstalk for all six combinations ofpairs between 1 MHz and 250 MHz. Each page includes recordings of one specificpair combination measured and calculated using low and high limit plug vectors.For pair combination 3/6 - 4/5 the worst case recordings for central limit plugs arepresented in a separate page due to the different mated pair performance limitsspecified for low/high and central limit plugs.

Page 35 Worst case recordings of pair-pair far end crosstalk for all 2×6 combinations ofpairs between 1 MHz and 250 MHz.

Page 36 Worst case recording of electromagnetic performance between 30 MHz and1 GHz.

Page 37 Worst case recordings of near end balance measured as TCL for all four pairsbetween 1 MHz and 250 MHz.

Page 38 Worst case recordings of far end balance measured as TCTL for all four pairsbetween 1 MHz and 250 MHz.

Page 39 Recording of transfer impedance between 1 MHz and 100 MHz.

Date: 2014.10.23

Page 26 of 391 MHz

0 dB

100 dB1 GHz

20

40

60

80

10 100

Pair 1/2: Worst case is measurement from

connecting block side. Pair 3/6: Worst case is measurement from


connecting block side. Pair 7/8:

Worst case is measurement fromplug side.

Limiting function: Category 6 limit: The worst case of Return Loss for allfour pairs complies with the speci-fied Category 6 limit in the comple-te frequency range from 1 MHz to250 MHz. 3P Project No. 1143859

Worst case recordings of ReturnLoss for all four pairs from 1 MHzto 250 MHz.

Date: 2014.10.27

Page 27 of 391 MHz

0 dB

0,5 dB1 GHz

0,1

0,2

0,3

0,4

10 100

Pair 1/2: Pair 3/6: Pair 4/5: Pair 7/8: Limiting function: Category 6 limit: The Attenuation for all four pairscomplies with the specified Catego-ry 6 limit in the complete frequencyrange from 1 MHz to 250 MHz. 3P Project No. 1143859

Recordings of Attenuation for allfour pairs from 1 MHz to250 MHz.

Date: 2014.10.22

Page 28 of 391 MHz

0 dB

100 dB1 GHz

20

40

60

80

10 100

Low plug [46,5 dB @ 100 MHz]: Worst case is measurement from

connecting block side. High plug [49,5 dB @ 100 MHz]: Worst case is measurement from

plug side. Limiting function: Category 6 limit: The worst case of Near End Cross-talk for pair combination 1/2 – 3/6calculated for both low and highplugs complies with the specifiedCategory 6 limit in the completefrequency range from 1 MHz to250 MHz. 3P Project No. 1143859

Worst case recordings of Near EndCrosstalk for pair combination1/2 - 3/6 calculated for low andhigh plugs from 1 MHz to250 MHz.

Date: 2014.10.22

Page 29 of 391 MHz

0 dB

100 dB1 GHz

20

40

60

80

10 100




Worst case recordings of Near End Crosstalk for pair combina-tion 1/2 - 4/5 calculated for lowand high plugs from 1 MHz to 250 MHz.

Date: 2014.10.22

Page 30 of 391 MHz

0 dB

100 dB1 GHz

20

40

60

80

10 100




Worst case recordings of Near End Crosstalk for pair combina-tion 1/2 – 7/8 calculated for lowand high plugs from 1 MHz to 250 MHz.

Date: 2014.10.22

Page 31 of 391 MHz

0 dB

100 dB1 GHz

20

40

60

80

10 100


plug side. High plug [39,5 dB @ 100 MHz]: Worst case is measurement from


Worst case recordings of Near EndCrosstalk for pair combination3/6 – 4/5 calculated for low andhigh plugs from 1 MHz to250 MHz.

Date: 2014.10.22

0 dB

20

40



plug side. Limiting function: Category 6 limit: The worst case of Near End Cross-talk for pair combination 3/6 – 4/5calculated for both low center andhigh center plugs complies with the

ifi d C 6 li i i h

Worst case recordings of Near End Crosstalk for pair combination 3/6 – 4/5 calculated for low centerand high center plugs from 1 MHz to 250 MHz.

Page 32 of 391 MHz100 dB

1 GHz

60

80

10 100

calculated for both low center andhigh center plugs complies with thespecified Category 6 limit in thecomplete frequency range from1 MHz to 250 MHz. 3P Project No. 1143859

Date: 2014.10.22

Page 33 of 391 MHz

0 dB

100 dB1 GHz

20

40

60

80

10 100




Worst case recordings of Near EndCrosstalk for pair combination3/6 – 7/8 calculated for low andhigh plugs from 1 MHz to250 MHz.

Date: 2014.10.22

Page 34 of 391 MHz

0 dB

100 dB1 GHz

20

40

60

80

10 100




Worst case recordings of Near End Crosstalk for pair combina-tion 4/5 – 7/8 calculated for lowand high plugs from 1 MHz to 250 MHz.

Date: 2014.10.27

Page 35 of 391 MHz

0 dB

100 dB1 GHz

20

40

60

80

10 100

Pair combination 1/2 – 3/6: Worst case is signal injection on

pair 1/2. Pair combination 1/2 – 4/5: Worst case is signal injection on





pair 7/8. Limiting function: Category 6 limit: The worst case of Far End Crosstalkfor all six pair combinations com-plies with the specified Category 6limit in the complete frequency rangefrom 1 MHz to 250 MHz. 3P Project No. 1143859

Worst case recordings of Far EndCrosstalk for all six pair combina-tions from 1 MHz to 250 MHz.

Page 36 of 391 MHz

0 dB

100 dB1 GHz

20

40

60

80

200 400 600 800

Measured on connecting hardwareassembled with individual foil andoverall braid screened cable andtested in aerial span. The cable alonewas having EMC performance ofmin. 80 dB. Date: 2014.12.01 EMC Performance: 70 dB Derived EMC function: Pair 1/2: Pair 3/6: Pair 4/5: Pair 7/8: Limiting function: Category 6 limit: The worst case of Coupling Attenua-tion for all four pairs complies withthe specified Category 6 limit in thecomplete frequency range from30 MHz to 1 GHz. 3P Project No. 1143859

Worst case recording of EMC Per-formance from 30 MHz to 1 GHz.The measurement is based on re-cordings of Coupling Attenuationfor all four pairs of the connectinghardware.

Date: 2014.10.28

Page 37 of 391 MHz

0 dB

100 dB1 GHz

20

40

60

80

10 100


plug side. Pair 3/6: Worst case is measurement from



connecting block side. Limiting function: Category 6 limit: The worst case of Transverse Con-version Loss for all four pairs com-plies with the specified Category 6limit in the complete frequency rangefrom 1 MHz to 250 MHz. 3P Project No. 1143859

Worst case recordings of Trans-verse Conversion Loss (TCL) forall four pairs from 1 MHz to250 MHz.

Date: 2014.10.28

0 dB

20

40





connecting block side. Limiting function: Category 6 limit:

Worst case recordings of Trans-verse Conversion Transfer Loss(TCTL) for all four pairs from1 MHz to 250 MHz.

Page 38 of 391 MHz100 dB

1 GHz

60

80

10 100

Limiting function: Category 6 limit: The worst case of Transverse Con-version Transfer Loss for all fourpairs complies with the specifiedCategory 6 limit in the completefrequency range from 1 MHz to250 MHz. 3P Project No. 1143859

1 MHz100 dB

1 GHz10 100

Date: 2014.12.031500

1000

2000mΩ

Recordings of Transfer Impedance from 1 MHz to 100 MHz. The connector is tested terminated with individual foil and overall braid screened horizontal and flexible cables, in 0,3 meter tri-axial method tube.

Initial measurement: Limiting function: Category 6 limit: The Transfer Impedance complieswith the specified Category 6 limit inthe complete frequency range from1 MHz to 100 MHz.

Page 39 of 391 MHz0 mΩ

100 MHz

1000

500

10

the complete frequency range from1 MHz to 100 MHz. 3P Project No. 1143859

1 MHz0 mΩ

100 MHz10

Documents

3rd MAINTENANCE OF QUALIFICATION TESTING OF SCREENED … · 2014. 12. 12. · Page 3 of 39 3P Project No. 1143859 1. IDENTIFICATION Project No.: 1143859 Subject: 3rd Maintence of