test report based on en 45001

Test report based on EN 45001

Test laboratory:

No.: 748 / 01Link Test

According to the specifications laid down in EN 50173:1995 + A1:2000Unshielded Class D Interconnect Channel and Permanent Link

Project number: BRRNA020

Registriernummer: TTI-P-G187/00-00

This test report consists of 33 pages plus annex.

GHMT mbH and the customers shall grant each other an unlimited right to copy and disclosethis report insofar as the measuring results and specifications published are neither modifiednor rendered incomplete. Third parties are not permitted to copy this report or excerpts thereofnor misuse it in any other fashion without obtaining our written approval.

Link Test to the specifications laid down in EN 50173:1995 + A1:2000 Project no.: BRRNA020Class D Interconnect Channel and Permanent Link PB 748/01

Test laboratory: Gesellschaft für Hochfrequenz-Meßtechnik mbH, Bexbach/Germany of 33Officialy certified test laboratory according to DIN EN ISO/IEC 17025 and member of eurolab-Germany, inc.

Table of Contents

1 GENERAL INFORMATION .......................................................................................................... 31.1 Test Laboratory.............................................................................................................................. 31.2 Test Date........................................................................................................................................ 31.3 Test Site ......................................................................................................................................... 31.4 Test Conducted by ......................................................................................................................... 31.5 Persons Present at Test .................................................................................................................. 3

2 CUSTOMER.................................................................................................................................... 42.1 Address .......................................................................................................................................... 42.2 Responsible compartment.............................................................................................................. 4

3 EQUIPMENT UNDER TEST (EUT) .............................................................................................. 53.1 Description of the Components ..................................................................................................... 53.2 Component Order .......................................................................................................................... 53.3 Acceptance of Components ........................................................................................................... 63.4 Definition of the Equipment Under Test (EUT) ............................................................................ 6

4 TEST TYPE ..................................................................................................................................... 84.1 Reference of testing ....................................................................................................................... 84.2 Test parameters.............................................................................................................................. 8

4.2.1 Attenuation ........................................................................................................................... 94.2.2 Near-End Cross-Talk (NEXT) ............................................................................................ 104.2.3 Power-Sum Near-End Cross-Talk (PS NEXT) ................................................................... 114.2.4 Attenuation-to-Cross-Talk Ratio (ACR) ............................................................................. 124.2.5 Power-Sum Attenuation-to-Cross-Talk Ratio (PS ACR) .................................................... 124.2.6 Equal-Level Far-End Cross-Talk (EL FEXT) .................................................................... 134.2.7 Power-Sum Equal-Level Far-End Cross-Talk (PS EL FEXT) ........................................ 144.2.8 Return Loss......................................................................................................................... 154.2.9 Longitudinal (to Differential) Conversion Loss (LCL)....................................................... 164.2.10 Delay .................................................................................................................................. 174.2.11 Delay Skew......................................................................................................................... 184.2.12 Transfer impedance (Not measured in this test report)...................................................... 19

5 RULES AND REGULATIONS..................................................................................................... 205.1 Rules and Regulations Applied.................................................................................................... 205.2 Class E Limits in the Permanent Link and in the Channel........................................................... 20

5.2.1 Limits Permanent Link ....................................................................................................... 215.2.2 Limits Channel ................................................................................................................... 21

5.3 Deviations .................................................................................................................................... 225.4 None-Standardized Test Procedures ............................................................................................ 22

6 TEST EQUIPMENT ...................................................................................................................... 23

7 SUMMARY................................................................................................................................... 24

8 ANNEX: DOCUMENTATION OF MEASUREMENTS ............................................................. 26



1 General information

1.1 Test Laboratory

GHMT mbHGesellschaft für Hochfrequenz-Meßtechnik mbHIn der Kolling 13

D-66450 Bexbach / Germany

Phone: +49 / 6826 / 9228 - 0Fax: +49 / 6826 / 9228 - 99

1.2 Test Date

All test parameters were tested during the period from 17 and 18 January.

1.3 Test Site

Analog-lab of GHMT mbH, Bexbach

1.4 Test Conducted by

Frank Streibert, engineer, general manager and laboratory manager at GHMT mbHBernd Jung, technical assistent to the laboratory management, GHMT mbH

1.5 Persons Present at Test

None



2 Customer

2.1 Address

Brand-Rex GmbHIm Taubental 58

D-41468 Neuss

Phone: +49 / 2131 / 3609 - 0Fax: +49 / 2131 / 3609 - 99

2.2 Responsible compartment

Brand-Rex GmbHMr. Manfred BraunIm Taubental 58

D-41468 Neuss

Phone: +49 / 2131 / 3609 - 45Fax: +49 / 2131 / 3609 - 99e-mail: [email protected]

mailto:[email protected]



3 Equipment Under Test (EUT)

3.1 Description of the Components

GHMT mbH received the following components from the customer in order toconduct the test:

Patchcord/Work area cord

Brand-Rex Typ: GPC-PC-U-xxx-888-yLength: 5m xxx = length y = H = LSF/OH IEC332.1 y = -- = PVC IEC332.1Cable: GPU-P24-(HF1), 4Pair 24 AWG UTPPlug: RJ45 one side, Typ Stew.Enh. Cat.5 S.37

Patchpanel Brand-Rex Typ: GPU-PNL-U-xx-yz-2Mxx = 16, 24, 32, 48 = 16, 24, 32, 48 Porty = Pre-assembled accordimg to TIA 568 A, Bz = 1, K = 110 , LSA connectivity

Data cable Brand-Rex Typ: GPU-xxx-yLength: 90 mxxx = HF1, HF3 = LSF/OH IEC332.1, IEC332.3cxxx = ----- = PVC IEC332.1y = D = Duplex, shotgun

Outlet Brand-Rex Typ: GPC-JAK-U-xy-3x = A, B = Pre-assembled according to TIA 568 A, By = 1, K = 110, LSA connectivity

3.2 Component Order

The cables and components listed were ordered from the customer

Brand-Rex GmbHIm Taubental 58

D-41468 Neuss



3.3 Acceptance of Components

The link components currently undergoing the test were delivered to the GHMT mbHfacilities on 9. January 2001. They had no visible defects.

3.4 Definition of the Equipment Under Test (EUT)

According to the specifications laid down in the document ISO/IEC 11801:1995/FDAM 2:1999(E) (distributed on 21 July 1999 by Deutsche ElektrotechnischeKommission im DIN und VDE), an interconnect channel was assembled in order toconduct the test:

Patchcord Brand-Rex Typ: GPC-PC-U-xxx-888-y -Length: 5 m

xxx = Lengthy = H = LSF/OH IEC332.1y = -- = PVC IEC332.1Cable: G6U-P24_(HF1), 4Pair 24 AWG UTPsingle-ended assembly with RJ45, Typ Stew.Enh. Cat.5

Patchpanel Brand-Rex Typ: GPC-PNL-U-xx-yz-2Mxx = 16, 24, 32, 48 = 16, 24, 32, 48 Porty = A, B = Pre-assembled according to TIA 568 A, Bz = 1, K = 110, LSA Connectivity

Installation cable Brand-Rex Typ: GPU-xxx-y – Length: 90 mxxx = HF1, HF3 = LSF/OH IEC332.1, IEC332.3cxxx = ----- = PVC IEC332.1y = D = Duplex, Shotgun

Telecommunication Brand-Rex Typ: GPC-JAK-U-xy-3Outlet x = A,B = Pre-assembled according to TIA/EIA 568 A

y = 1, K = 110, LSA connectivity

Work area cable Brand-Rex Typ: GPC-PC-U-xxx-888-yLength: 5 mxxx = Lengthy = H = LSF/OH IEC332.1y = -- = PVC IEC332.1Cable: G6U-P24_(HF1), 4Pair 24 AWG UTPsingle-ended assembly with RJ45, Typ: Stew.Enh. Cat.5



Picture 1: Definition of permanent link and channel in reference to ISO/IEC11801:1995/FDAM 2: 1999(E)



4 Test Type

4.1 Reference of testing

Test carried out an interconnect channel and a permanent link with four transmissionchannels according to ISO/IEC 11801:1995/FDAM 2:1999. The informativeassessment is based on the Class E specifications according to ISO/IEC JTC 1/SC25/WG 3 – Draft 598. The test comprised all transmission-related parameters required.

4.2 Test parameters

The following test parameters from part of the test conducted according to section 4.1

• Attenuation• Near-end Crosstalk (NEXT)• Power-sum near-end crosstalk attenuation (PS NEXT)• Attenuation to crosstalk loss ratio (ACR)• Power-sum attenuation to crosstalk loss ratio (PS ACR)• Equal level far-end crosstalk attenuation (ELFEXT)• Power-sum equal level far-end crosstalk attenuation (PS ELFEXT)• Return loss• Longitudinal to differential conversion loss (LCL)• Delay• Delay skew• Loop resistance



4.2.1 Attenuation

SNA 2

SMZ75 / 105

SMZ75 / 105Oh

WG 100 Hz -

Baluns

TransmitterReceiver

A B

Pair of cores

Definition The attenuation is determined by the ratio of the powersupplied at port A and the power measured at port B.

a [dB] = 10 log PPV

A

B

Input and output of the two-port network have to beterminated with the line's nominal characteristic impedancein order to avoid return loss.

Influencingfactors

The attenuation of cables is largely determined by the cross-sectional area and the conductivity of the copper conductors.In particular in very high frequency ranges, the dielectricloss of the core insulation material contributes to an increasein the attenuation in proportion to the frequency.

The attenuation depends on length, frequency andtemperature.

Meaning A low attenuation improves the transmission reliability ofthe cabling link. The attenuation of cables and connectinghardware accumulates but it is primarily determined by thecabling.



4.2.2 Near-End Cross-Talk (NEXT)

SNA 2

SMZ75 / 105

SMZ75 / 105

WG 100 Hz -

Baluns

TransmitterReceiver

Pair of cores 1

Pair of cores 2

A

B

Zo

Zo

Definition The near-end cross-talk loss is determined by the ratio of thepower supplied at port A to the power measured at port B.

a [dB] = 10 log PPN

A

B

The EUT has to be terminated on both ends with thecharacteristic impedance. If transmitter and receiver arepositioned at the same end of the EUT, the parameter isreferred to as near-end cross-talk (NEXT).

Influencingfactors

The near-end cross-talk of cables is decisively influenced bythe stranding and the foil pair shield (if applicable).

Near-end cross-talk strongly depends on the frequency usedand – only to a minor extent – on the cabling length.

Meaning A high degree of near-end cross-talk improves transmissionreliability. The transmission reliability within the cablinglink is largely determined by the component with the lowestdegree of near-end cross-talk.



4.2.3 Power-Sum Near-End Cross-Talk (PS NEXT)

Transmitter

PowerSplitter SUA-71

50 / 100 Ohm

SUA-7150 / 100 Ohm

SUA-7150 / 100 Ohm

100 ΩΩΩΩ

100 ΩΩΩΩ

100 ΩΩΩΩ

100 ΩΩΩΩSUA-7150 / 100 Ohm

Receiver

Definition The power sum of the near-end cross-talk is defined on thebasis of the ratio of the power input at the three pairs A, Band C to the power output at pair D. The power-sum NEXTvalue of cables can be measured by means of a phase-correlated 4-port power splitter. On the basis of the pair-to-pair NEXT measurements, the power sum can also becalculated according to the following formula:

∑=

⋅3

1i

0,1-10 log 10 = [dB] a

iNEXTa

PSNEXT

Influencingfactors

The power-sum NEXT value of cables is decisivelyinfluenced by the stranding and the foil pair shield (ifapplicable). Power-sum NEXT strongly depends on thefrequency used and – only to a minor extent – on thecabling length.

Meaning With regard to network protocols that distribute the bi-directional data load over all four pairs, power-sum NEXTis of great importance for transmission reliability sincepower-sum cross-talk is expected to impair transmission viathe data channel.



4.2.4 Attenuation-to-Cross-Talk Ratio (ACR)

Definition The ratio of the level of the incoming useful signal to thenoise level atthe opposite end of the measured link is referred to asAttenuation-to-Cross-Talk Ratio (abbr. ACR).

ACR may be interpreted as the signal-to-noise ratio with thenear-end cross-talk being regarded as the interfering signalor noise.

ACR [dB] = a [dB] - a [dB]N V

Calculation As agreed, the ACR value is calculated for every frequencyresponse of the near-end cross-talk with the two relevantfrequency responses of the attenuation.

Alternatively, the minimum value of the ACR calculationmay be allocated for every measuring point of the twoattenuation values involved. The determination of thedouble-ended system dynamics thus results in 12 ACRfrequency responses for a four-pair specimen.

Meaning The ACR value is of decisive importance to systemdesigners, system manufacturers and operators of datacommunications equipment since it provides immediateinsight into system dynamics and system reserve. The largerthe distance between the useful signal and the noise signalover the entire frequency range, the larger the infrastructuralreserve.

4.2.5 Power-Sum Attenuation-to-Cross-Talk Ratio (PS ACR)

Definition The power sum of the ACR reserve is calculated as follows:

PS ACR [dB] = aPSNEXT [dB] – aV [dB]

Meaning With regard to network protocols that distribute the bi-directional data load over all four pairs, power-sum ACR isof great importance for transmission reliability since cross-talk is expected to impair transmission via the data channel.



4.2.6 Equal-Level Far-End Cross-Talk (EL FEXT)

SUA-7150 / 100 Ohm

SUA-7150 / 100 Ohm

100 ΩΩΩΩ

SUA-7150 / 100 Ohm

Receiver 1

Receiver 2 Transmitter

Balun

Balun Balun

Definition The equal-level far-end cross-talk (abbr. EL FEXT) isdetermined by the ratio of the power measured at the remoteport B to the power measured at the remote port C. Themeasuring signal is supplied to the near end of the cable.

C

BELFEXT P

P log 10 = [dB] a

All pairs of the EUT are terminated with their characteristicimpedance.

Influencingfactors

The EL FEXT value of cables is decisively influenced bythe stranding and the foil pair shield (if applicable).

EL FEXT strongly depends on the frequency used.



4.2.7 Power-Sum Equal-Level Far-End Cross-Talk (PS EL FEXT)

Definition The power-sum EL FEXT value can be calculated on thebasis of the pair-to-pair EL FEXT measurements accordingto the following formula:

∑=

⋅3

1i

0,1-10 log 10 = [dB] a

iELFEXTa

PSELFEXT

Meaning With regard to network protocols that distribute the bi-directional data load over all four pairs, power-sum ELFEXT is of great importance for transmission reliabilitysince cross-talk is expected to impair transmission via thedata channel.



4.2.8 Return Loss

SNA 2

SMZ75 / 105 Ohm

WG 100 Hz - 180 MHz

Balun

ReceiverTransmitter

UUT

Pair of CoresReturn loss measuring bridge

R = Z

Differential-modetermination withoutreturn loss

Definition The return loss represents the ratio of the power supplied tothe EUT to the power reflected by the EUT.

output

inputR P

P log 10 = [dB] a

The EUT end is terminated with the characteristicimpedance in order to absorb any non-reflected power. TheEUT and the test-value transmitter must have the same ratedimpedance in the broadband range.

Influencingfactors

The return loss value of cables is decisively influenced bythe homogeneity of the conductors and the core of the cable.Mechanical load during the manufacturing or installation ofthe cables may impair the return loss.

The parameters return loss and characteristic impedancecorrelate.

Meaning A high degree of return loss improves the transmissionreliability. A low degree of return loss may lead to anunwanted overlap of returning signal components.



4.2.9 Longitudinal (to Differential) Conversion Loss (LCL)

SNA 2

SMB-54A20kHz-100MHz

WG 100 Hz - 180 MHz

TransmitterReceiver

Pair of Cores

SymmetriemeßbrücSymmetrical measuring bridge

Common-mode/differential-mode terminationwithout return loss

Definition The longitudinal to differential conversion loss (abbr. LCL)represents the ratio of the differential-mode wave input inthe EUT to the common-mode wave output from the EUT.

ecommon

ealdifferenti

mod

mod

PP

log 10 = [dB] LCL

The EUT end is terminated with the correspondingcharacteristic impedance for both wave shapes.

Influencingfactors

The LCL value of data transmission cables is decisivelyinfluenced by the homogeneity of the cores and the uniformstranding. An ideally balanced data transmission cablewould also be resistant to external electromagneticinterference without any shielding.

The LCL value and the earth coupling correlate.

Meaning A high degree of LCL reduces the susceptibility of the EUTto any disturbing electromagnetic interference.



4.2.10 Delay

SNA 2

SMZ75 / 105

SMZ75 / 105

WG 100 Hz - 180

Baluns

TransmitterReceiver

A B

Pair of Cores

Definition The velocity of propagation v of cables is stated in relationto the maximum velocity of propagation of electromagneticwaves in the vacuum co. The parameter "Nominal Velocityof Propagation" (abbr. NVP) is defined as follows:

NVP v

oc=

The delay τ is the period of time the signal requires in orderto travel through a cabling link with a length of l. The delayis calculated on the basis of the NVP value (NominalVelocity of Propagation) of the cable and the velocity oflight c0 according to the following formula:

cNVPl

0⋅

=τ

Influencingfactors

The delay of cables is decisively influenced by the dielectricloss of the core insulation material. This material-inducedloss may be minimised by selecting various compounds andby varying the degree of foaming.

The impact of colour addition on the NVP value is not to beneglected since the colours vary strongly in their dielectricconstants, which are considerably higher than in the basiccompound.



Influencingfactors(continued)

The velocity of propagation does not depend on the cablelength and may be calculated on the basis of themeasurement of the length-dependent group delay. Thereference length used for calculation is the cable length andnot the lay length of the twisted pairs. Different lay lengthvalues in the four pairs lead to different NVP values.

Meaning In order to ensure distortion-free signal transmission, thevelocity of propagation must not fall below a lower limitingvalue, which is determined by the system requirements. Thevelocity of propagation has to be virtually independent of thefrequency within the signal bandwidth in order to avoid adivergence of the spectral signal components.

High-bit rate network protocols that use parallel datatransmission via the four pairs, moreover, require a highlyconsistent velocity of propagation in order to avoidsynchronisation errors. Future normative standards willdefine this so-called "delay skew".

4.2.11 Delay Skew

Definition The delay skew ∆τ of cables with a length of l marks thetime difference between signals travelling along theindividual transmission links at the propagation velocity vi,j.

∆τ = l i j

i j

v vv v

⋅−

⋅

Influencingfactors

The delay skew of cables is decisively influenced by thedielectric loss of the core insulation material and the variouslay length values.

Meaning The delay skew will be an important parameter for adistortion-free data transmission in balanced cables in viewof future network protocols.



4.2.12 Transfer impedance (Not measured in this test report)

Screened cabin

Data link = 0.5 m50 ohms

Parallel wireSpecimen

Networkanalyzer

Definition As soon as an electromagnetic wave reaches a screen, it inducesan interference current IDisturb.. This current produces a voltageUDisturb. along the inner conductor. The coupling factor

IUZ

eDisturbanc

eDisturbancT =

has the dimension of a complex impedance and is called transferimpedance ZT. The transfer impedance consists of a real part – i.e.the coupling resistance RC – and an imaginary part. In manycases, only the coupling resistance will be of practical importancefor the evaluation of the shielding effectiveness.

The coupling impedance has the dimension mΩ. In case of datacables it is indicated per unit of length and has the dimensionmΩ/m.

Influencingvariables

In case of shielded cables, the coupling resistance is primarilydetermined by the mechanical structure of the braided screenand/or by inserted foil screens. The coupling resistance is verymuch dependent on the frequency.

Significance The better the effectiveness of a shield is, the smaller is the valueof the coupling resistance.



5 Rules and Regulations

5.1 Rules and Regulations Applied

• EN 50173:1995 + A1:2000 from july 2000Information technology - Generic cabling for customer premises

• ISO/IEC 11801:1995 + A1:1999(E)Information technology - Generic cabling for customer premises

• ISO/IEC JTC 1/SC 25/WG3 – N598 (05/00)ISO/IEC 11801 2nd edition: Clauses as approved by WG 3 at Sydney and asproposed by editors for consideration (working draft)

• TIA 568 A Add.1-4, TSB 95 & Add.5 (Cat.5e)(1999)

• TIA 568 A 1995 & Add 1-4

5.2 Class D Limits in the Permanent Link and in the Channel

The limits were derived from the "4-connector model" with the transition point and theconsolidation point serving as worst-case assumptions. The interconnect channelspecified by the customers for the test represents a "2-connector model". Morestringent normative limit requirements for the interconnect channel described inISO/IEC 11801:1995/FDAM2:1999(E) are currently not scheduled.

The limits contained in the current working document ISO/IEC JTC 1/SC 25/WG3 –N552 (03/99) are currently under consultation. Upon their approval, the requirementswill be included in the 2nd Draft of ISO/IEC 11801.

Class D requirements are stated for limit frequencies in the following section.However, they have to be adhered to over the entire transmission bandwidth by meansof an appropriate interpolation of the limits.



5.2.1 Limits Permanent LinkFr

eque

ncy

/ MH

z

Att

enua

tion

/ dB

NEX

T / d

B

PS N

EXT

/ dB

AC

R /

dB

PS A

CR

/ dB

EL F

EXT

/ dB

PS E

L FE

XT

/ dB

Ret

urn

Loss

/ dB

LCL

/ dB

Del

ay /

µs

Del

ay S

kew

/ µs

1 2,1 61,2 58,2 59,1 56,1 59,6 57,0 17,0 - 0,522 0,0434 4,1 51,8 48,8 47,7 44,7 47,6 45,0 17,0 - 0,504 0,043

10 6,1 45,4 42,5 39,4 36,4 39,6 37,0 17,0 - 0,497 0,04316 7,8 42,3 39,3 34,5 31,5 35,5 32,9 17,0 - 0.495 0,04320 8,7 40,7 37,7 32,0 29,0 33,6 31,0 17,0 - 0,494 0,043

31,25 11,0 37,6 34,6 26,6 23,6 29,7 27,1 15,6 - 0,492 0,04362,5 16,0 32,7 29,7 16,7 13,7 23,7 21,1 13,5 - 0,490 0,043100 20,6 29,3 26,3 8,7 5,7 19,6 17,0 12,1 - 0,498 0,043

Schedule 1: Limits in reference to EN 50173:1995 + A1:2000 (Permanent Link)

5.2.2 Limits Channel

Freq

uenc

y / M

Hz

Att

enua

tion

/ dB

NEX

T / d

B

PS N

EXT

/ dB

AC

R /

dB

PS A

CR

/ dB

EL F

EXT

/ dB

PS E

L FE

XT

/ dB

Ret

urn

Loss

/ dB

LCL

/ dB

Del

ay /

ns

Del

ay S

kew

/ ns

1 2,5 60,3 57,3 57,8 54,8 57,0 54,4 17,0 40 0,580 0,0504 4,5 50,6 47,6 46,1 43,1 45,0 42,4 17,0 ffs 0,562 0,050

10 7,0 44,0 41,0 37,0 34,0 37,0 34,4 17,0 30 0,555 0,05016 9,2 40,6 37,6 31,4 28,4 32,9 30,3 17,0 ffs 0,553 0,05020 10,3 39,0 36,0 28,7 25,7 31,0 28,4 17,0 ffs 0,552 0,050

31,25 12,8 35,7 32,7 22,9 19,9 27,1 24,5 15,1 ffs 0,550 0,05062,5 18,5 30,6 27,6 12,1 9,1 21,1 18,5 12,1 ffs 0,549 0,050100 24,0 27,1 24,1 3,1 0,1 17,0 14,4 10,0 ffs 0,548 0,050

Schedule 2: Limits in reference to EN 50173:1995 + A1:2000 (Channel)



5.3 Deviations

The test was conducted with the following deviations in the test set-up and testprocedure as compared to ISO/IEC 11801:

• The test set-up corresponds to the interconnect channel that is used as a link withtwo plug-jack transitions.

5.4 None-Standardized Test Procedures

None.



6 Test equipment

The following test equipment was used for the measurements:

Equipment Label Manufacturer Technical Datas Last Calibration

SpectrumNetwork-analyzer

ZVRERohde &Schwarz

50 Ω9 kHz - 4 GHz 01/00

RLC-Meter PM 6304 Fluke 0,10 % accuracy 12/98

Reference clamp KRMZ 1200-A GHMT 50 / 100 Ω1 MHz - 1,2 GHz before use

Reference clamp KRMZ 1500-A GHMT 50 / 100 Ω1 MHz – 1,5 GHz before use

Symmetrymeasuring bridge SMB-61

AnalogElektronik

50 Ω100 kHz - 350 MHz before use

Time-Domain-Reflectometer 1502 C Tektronix 0,025 m resolution ---

Digital -Voltmeter 3455 A Hewlett-Packard 1 mΩ resolution ---

Measuringequipment --- GHMT --- ---



7 Summary

Customer Brand-Rex GmbHIm Taubental 58

D-41468 Neuss

Telefon: +49 / 2131 / 3609 – 0Telefax: +49 / 2131 / 3609 – 99

Test laboratory Gesellschaft für Hochfrequenz-Meßtechnik mbHIn der Kolling 13

D-66450 Bexbach / Germany

Phone: +49 / 6826 / 9228 – 0Fax: +49 / 6826 / 9228 – 99

Test report Test report no. 748/00 from 18th january 2001.

EquipmentUnder Test(EUT)

Certification of transmission characteristics with respect to high-frequencybehaviour. The EUT was a 90 m permanent link and a 100 m interconnectchannel without any transition- or consolidation point. The EUT presentedfor the test is described by the following product features and type data:

Patchcord/Work areaCord

Patchpanel

Installation-cable

Outlet

Brand-Rex Typ: GPC-PC-U-xxx-888-yLength: 5 mXxx = Lengthy = H = LSF/OH IEC332.1y = -- = PVC IEC332.1Cable: GPU-P24-(HF1), 4 Pair 24 AWG UTPone side pre-assembled with RJ45 Typ Stew.Enh. Cat.5

Brand-Rex Typ: GPC-PNL-U-xx-yz-2Mxx = 16, 24, 32, 48 = 16, 24, 36, 48 Porty = A, B = Pre-assembled according to TIA 568 A, Bz = 1, K = 110, LSA connectivity

Brand-Rex Typ: GPU-xxx-y UTPLength: 90 mxxx = HF1, HF3 = LSF/OH IEC332.1, IEC332.1xxx = ----- = PVC IEC332.1y = D = Duplex, Shotgun

Brand-Rex Typ: GPC-JAK-U-xy-3x = A, B = Pre-assembled according to TIA 568 A, By = 1, K = 110, LSA connectivity



Appliedvaluationstandards

• EN 50173:1995 + A1:2000 from july 2000-11-04 Information technology – Generic cabling for customer premises

• ISO/IEC 11801:1995 + A1:1999(E) Information technology – Generic cabling for customer premises

• ISO/IEC JTC 1/SC 25 WG3 – N598 (05/00)ISO/IEC 11801 2nd edition: Clauses as approved by WG 3 at Sydney andas proposed by editors for consideration (working draft)

• TIA 568 A Add.1-4, TSB 95 & Add.5 (Cat.5e)(1999)

• TIA 568 A 1995 & Add.1-4

Test parameters • Attenuation

• Near-end crosstalk attenuation (NEXT)

• Power-sum near-end crosstalk attenuation (PS NEXT)

• Attenuation to crosstalk loss ratio (ACR)

• Power-sum attenuation to crosstalk loss ratio (PS ACR)

• Equal level far-end crosstalk attenuation (ELFEXT)

• Power-sum equal level far-end crosstalk attenuation (PS ELFEXT)

• Delay

• Delay skew

• Return loss

• Longitudinal to differential conversion loss (LCL)

• Loop resistance

Comments The results obtained during the test refer to the EUT described. Futuretechnical modifications of the data transmission cable and the connectors arethe manufacturer’s responsibility.

The EUT is within the normative limits laid down in the specifieddocuments as far as the aforementioned test parameters are concerned. Theconformity of the Permanent Link and the Interconnect Channel tested withthe Class D reqiurements (100 MHz) are confirmed for all pin combinations.

Bexbach / Germany18th january 2001

F. Streibert, engineer(Laboratory manager)



8 Annex: Documentation of measurements

As annex of this test report the test results are documented as frequency responses.



Summary of the measured low-frequency-parameters:

Loop Resistance Permanent Link

Pair Loop resistance in ΩΩΩΩ12 12,6436 12,6745 12,6678 12,70

Loop Resistance Channel

Pair Loop resistance in ΩΩΩΩ12 15,8336 15,8345 15,8478 15,90

The following adjustments were basis for the measuring equipment:

Measuringequipment

Fluke PM 6304 RLC-Meter

Level 50 mVFrequency DCAverage Yes

Length 90 m (Permanent Link)100 m (Channel)

Limit The limit in reference to ISO/IEC 11801 for loopresistance is 40 Ω in the channel and 34 Ω in thePermanent Link.



Summary of the measured high-frequency-parameters:

All power-sum parameters are calculated out of individual pair-to-pair measurements.Furthermore the ACR-values and the delay skew are determined by calculation.

Attenuation


Networkanalysor Rohde & Schwarz ZVRE 10 Hz – 4 GHz

Output Power 0 dBmFrequency Range 1 MHz – 100 MHzIF-Filter 300 HzResolution 2000 measurement points in logarithmic distributionAverage NoneSmoothing NoneNoise floor A dynamic range of 135 dB was verifiedImpedance 50 Ω

Matching ofspecimen

Cable reference measuring clamp 1200 of GHMTCable reference measuring clamp 1500 of GHMT



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Cable reference measuring clamp 1200 of GHMT



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Delay



Output Power 0 dBmFrequency Range 1 MHz – 100 MHzIF-Filter 100 HzResolution 2000 measurement points in linear distributionAverage NoneSmoothing NoneNoise floor A dynamic range of 135 dB was verifiedImpedance 50 Ω

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Return loss



Output Power -10 dBmFrequency Range 1 MHz – 100 MHzIF-Filter 300 HzResolution 2000 measurement points in logarithmic distributionAverage NoneSmoothing NoneNoise floor A dynamic range of 60 dB was verifiedImpedance 50 Ω

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Cable reference measuring clamp 1200 of GHMT



Longitudinal conversion loss



Output Power 0 dBmFrequency Range 0,1 MHz – 100 MHzIF-Filter 30 HzResolution 2000 measurement points in logarithmic distributionAverage NoneSmoothing NoneNoise floor A dynamic range of 45 dB was verified at 100 MHzImpedance 50 Ω

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Symmetry measuring bridge

All power-sum parameters are calculated out of individual pair-to-pair measurements.Furthermore the ACR-values and the delay skew are determined by calculation.

test report based on en 45001

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