Reference: ACT Memo 67 | Issue: 1c (8th August 2003)

VDSL System Reach Test Results Infineon VDSL Transmission System

VDSL System Reach Test Results Reference: ACT Memo 67 | Issue: 1c (8th August 2003)

Copyright © British Telecommunications plc, 2003. All rights reserved. As per clause III of Supplement A in the contract: Neither Party shall disclose any part of BT's preliminary findings, the draft Report or the Customer's comments to any third party, without the other Party's prior written consent (which may be refused). BT maintains that all reasonable care and skill has been used in the compilation of this publication. However, BT shall not be under any liability for loss or damage (including consequential loss) whatsoever or howsoever arising as a result of the use of this publication by the reader, his servants, agents or any third party. All third-party trademarks are hereby acknowledged.

Document history

Revision

Author

Date

Notes

0e

A.D.Wallace

4/8/03

1st draft for review

1a

A.D.Wallace

5/8/03

2nd draft for review

1b

A.D.Wallace

7/8/03

3rd draft for BT Exact review

1c

A.D.Wallace

8/8/03

Draft for comments from Infineon

Technical contact: John MacDonald ppG08, Polaris House Adastral Park Martlesham Heath Ipswich Suffolk, IP5 3RE Phone: +44 1473 642614 Fax: +44 1473 648954 E-Mail: [email protected]

British Telecommunications plc Registered office: 81 Newgate Street London EC1A 7AJ Registered in England no. 1800000

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VDSL System Reach Test Results Reference: ACT Memo 67 | Issue: 1c (8th August 2003)

Contents 1

Executive Summary ................................................................................................. 7 1.1 Introduction....................................................................................................... 7 1.2 VTU System Reach ............................................................................................. 8 1.3 PSD and Total Power .......................................................................................... 9

2

Test Results – Supplementary Tests ......................................................................... 11 2.1 System Details ................................................................................................. 11 2.2 VTU System Reach Testing ................................................................................ 11 2.2.1 Detailed Reach Results Summary ................................................................... 11 2.2.2 Relaxation Time........................................................................................... 14 2.3 PSD and Total Power Verification ........................................................................ 14 2.3.1 Observations ............................................................................................... 16

3

Optional Tests ...................................................................................................... 17 3.1 Optional Test 1 ................................................................................................ 17 3.1.1 Results ....................................................................................................... 17 3.1.2 PSDs.......................................................................................................... 17 3.2 Optional Test 2 ................................................................................................ 20 3.2.1 Results ....................................................................................................... 20 3.2.2 PSDs.......................................................................................................... 20

4

References ........................................................................................................... 23

A.

Appendix A : PSD Plots – Reach Tests ...................................................................... 24

B.

Appendix B : Test Personnel.................................................................................... 54

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VDSL System Reach Test Results Reference: ACT Memo 67 | Issue: 1c (8th August 2003)

List of Figures Figure 1-1 : Reach Summary ..........................................................................................................................8 Figure 3-1 Optional Test 1 Downstream PSD (10 kHz bandwidth) ...............................................................18 Figure 3-2 Optional Test 1 Downstream PSD (sliding window).....................................................................18 Figure 3-3 Optional Test 1 Upstream PSD (10 kHz bandwidth).....................................................................19 Figure 3-4 Optional Test 1 Upstream PSD (sliding window) ..........................................................................19 Figure 3-5 Optional Test 2 Downstream PSD (10 kHz bandwidth) ................................................................21 Figure 3-6 Optional Test 2 Downstream PSD (sliding window)......................................................................21 Figure 3-7 Optional Test 2 Upstream PSD (10 kHz bandwidth).....................................................................22 Figure 3-8 Optional Test 2 Upstream PSD (sliding window) ..........................................................................22 Figure A-1: Config 1, Downstream PSD (10kHz bandwidth)..........................................................................24 Figure A-2: Config 1, Downstream PSD (Sliding window)..............................................................................24 Figure A-3: Config 1, Upstream PSD (10kHz bandwidth) ..............................................................................25 Figure A-4: Config 1, Upstream PSD (Sliding window) ..................................................................................25 Figure A-5: Config 2, Downstream PSD (10kHz bandwidth)..........................................................................26 Figure A-6: Config 2, Downstream PSD (Sliding window)..............................................................................26 Figure A-7: Config 2, Upstream PSD (10kHz bandwidth) ..............................................................................27 Figure A-8: Config 2, Upstream PSD (Sliding window) ..................................................................................27 Figure A-9: Config 3, Downstream PSD (10kHz bandwidth)..........................................................................28 Figure A-10: Config 3, Downstream PSD (Sliding window)............................................................................28 Figure A-11: Config 3, Upstream PSD (10kHz bandwidth) ............................................................................29 Figure A-12: Config 3, Upstream PSD (Sliding window) ................................................................................29 Figure A-13: Config 4, Downstream PSD (10kHz bandwidth)........................................................................30 Figure A-14: Config 4, Downstream PSD (Sliding window)............................................................................30 Figure A-15: Config 4, Upstream PSD (10kHz bandwidth) ............................................................................31 Figure A-16: Config 4, Upstream PSD (Sliding window) ................................................................................31 Figure A-17: Config 5, Downstream PSD (10kHz bandwidth)........................................................................32 Figure A-18: Config 5, Downstream PSD (Sliding window)............................................................................32 Figure A-19: Config 5, Upstream PSD (10kHz bandwidth) ............................................................................33 Figure A-20: Config 5, Upstream PSD (Sliding window) ................................................................................33 Figure A-21: Config 6, Downstream PSD (10kHz bandwidth)........................................................................34 Figure A-22: Config 6, Downstream PSD (Sliding window)............................................................................34 Figure A-23: Config 6, Upstream PSD (10kHz bandwidth) ............................................................................35 Figure A-24: Config 6, Upstream PSD (Sliding window) ................................................................................35 Figure A-25: Config 7, Downstream PSD (10kHz bandwidth)........................................................................36 Figure A-26: Config 7, Downstream PSD (Sliding window)............................................................................36 Figure A-27: Config 7, Upstream PSD (10kHz bandwidth) ............................................................................37 Figure A-28: Config 7, Upstream PSD (Sliding window) ................................................................................37 Figure A-29: Config 8, Downstream PSD (10kHz bandwidth)........................................................................38 Figure A-30: Config 8, Downstream PSD (Sliding window)............................................................................38 Figure A-31: Config 8, Upstream PSD (10kHz bandwidth) ............................................................................39

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VDSL System Reach Test Results Reference: ACT Memo 67 | Issue: 1c (8th August 2003) Figure A-32: Config 8, Upstream PSD (Sliding window) ................................................................................39 Figure A-33: Config 9, Downstream PSD (10kHz bandwidth)........................................................................40 Figure A-34: Config 9, Downstream PSD (Sliding window)............................................................................40 Figure A-35: Config 9, Upstream PSD (10kHz bandwidth) ............................................................................41 Figure A-36: Config 9, Upstream PSD (Sliding window) ................................................................................41 Figure A-37: Config 10, Downstream PSD (10kHz bandwidth)......................................................................42 Figure A-38: Config 10, Downstream PSD (Sliding window)..........................................................................42 Figure A-39: Config 10, Upstream PSD (10kHz bandwidth) ..........................................................................43 Figure A-40: Config 10, Upstream PSD (Sliding window) ..............................................................................43 Figure A-41: Config 11, Downstream PSD (10kHz bandwidth)......................................................................44 Figure A-42: Config 11, Downstream PSD (Sliding window)..........................................................................44 Figure A-43: Config 11, Upstream PSD (10kHz bandwidth) ..........................................................................45 Figure A-44: Config 11, Upstream PSD (Sliding window) ..............................................................................45 Figure A-45: Config 12, Downstream PSD (10kHz bandwidth)......................................................................46 Figure A-46: Config 12, Downstream PSD (Sliding window)..........................................................................46 Figure A-47: Config 12, Upstream PSD (10kHz bandwidth) ..........................................................................47 Figure A-48: Config 12, Upstream PSD (Sliding window) ..............................................................................47 Figure A-49: Config 13, Downstream PSD (10kHz bandwidth)......................................................................48 Figure A-50: Config 13, Downstream PSD (Sliding window)..........................................................................48 Figure A-51: Config 13, Upstream PSD (10kHz bandwidth) ..........................................................................49 Figure A-52: Config 13, Upstream PSD (Sliding window) ..............................................................................49 Figure A-53: Config 14, Downstream PSD (10kHz bandwidth)......................................................................50 Figure A-54: Config 14, Downstream PSD (Sliding window)..........................................................................50 Figure A-55: Config 14, Upstream PSD (10kHz bandwidth) ..........................................................................51 Figure A-56: Config 14, Upstream PSD (Sliding window) ..............................................................................51 Figure A-57: Config 15, Downstream PSD (10kHz bandwidth)......................................................................52 Figure A-58: Config 15, Downstream PSD (Sliding window)..........................................................................52 Figure A-59: Config 15, Upstream PSD (10kHz bandwidth) ..........................................................................53 Figure A-60: Config 15, Upstream PSD (Sliding window) ..............................................................................53

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VDSL System Reach Test Results Reference: ACT Memo 67 | Issue: 1c (8th August 2003)

List of Tables

Table 1-1 : VTU System Reach Summary .......................................................................................................8 Table 1-2 : VTU System PSD Results Summary ............................................................................................10 Table 2-1 : System Details ...........................................................................................................................11 Table 2-2 : VTU System Detailed Reach Results ...........................................................................................12 Table 2-3 : VTU System Configuration Parameters.......................................................................................15 Table 2-4 : VTU System PSD Results............................................................................................................16

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VDSL System Reach Test Results Reference: ACT Memo 67 | Issue: 1c (8th August 2003)

1

Executive Summary

1.1

Introduction

This report documents the results of tests performed by BT Exact on the Infineon Technologies IFX VDSL transmission system. The IFX system is manufactured by: Infineon Technologies AG St.-Martin-Str. 53 81669 Munich GERMANY www.infineon.com The VTU system tested was a Single Carrier Modulation (SCM) transceiver based system. The transceiver was tested using manufacturer provided evaluation/reference boards providing Ethernet Interfaces, as well as a VTU control interface. The supplier can be contacted for additional information on this product. Testing was performed at BT Exact’s Local Network Test Facility located at Adastral Park, Ipswich UK between 28th July and 1st August 2003. The test specification can be found in reference [1]. Further details of the test methodology used by BT Exact can be found in [2]. Several deviations from [1] and [2] were requested by the vendor. These were as detailed below. •

Ethernet interfaces were used in place of ATM/Utopia.

•

Ethernet test data comprised fixed length Ethernet frames of 1518 bytes.

•

Reach was validated upstream and downstream at a single, vendor suggested figure.

•

The VTU system could be trained in the absence of cross-talk noise, with cross-talk noise at the nominal level or in the presence of cross-talk noise already increased by +6 dB.

•

Reach quanta were steps of 50 ft rather than 150 ft.

•

A modem daughter-board was changed part way through testing, in order to meet out-ofband PSD requirements.

In the light of the above, these results may not reflect those which would have been obtained if the measurements had been taken strictly according to the procedures defined in [1] and [2]. The remainder of Section 1 is a summary of the observed test results. Section 2 provides the detailed test results. PSD plots associated with the VTU system reach tests are presented in Appendix A. Section 3 describes two additional tests. These were performed to explore the higher bit rate capabilities of the system.

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VDSL System Reach Test Results Reference: ACT Memo 67 | Issue: 1c (8th August 2003)

1.2

VTU System Reach

Figure 1-1 provides a high level graphical summary of the reach test results Infineon Reach 3500 10/10

13/13

16/1

22/3

6/6

3000

Reach (ft)

2500

2000

1500

1000

500

0 1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Reach Test #

Figure 1-1 : Reach Summary

The following is a tabular summary of the results from the VTU system reach testing. Detailed test results are provided in Section 2.2. Table 1-1 : VTU System Reach Summary

Config

Test

Service (Mbit/s) (Down/Up)

Reach (ft)

1

1

10/10

1950

2

10/10

1800

3

10/10

1800

4

10/10

1800

5

10/10

1500

6

10/10

1950

7

13/13

1450

8

13/13

1550

5

9

13/13

1500

6

10

13/13

1450

2

3 4

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VDSL System Reach Test Results Reference: ACT Memo 67 | Issue: 1c (8th August 2003)

VTU System Reach Summary (cont.) Config 7 8 9

10

11

12

13

14 15

1.3

Test

Service (Mbit/s) (Down/Up)

Reach (ft)

11

13/13

1350

12

13/13

1500

13

16/1

3300

14

16/1

3300

15

16/1

3300

16

16/1

2550

17

22/3

2550

18

22/3

2550

19

22/3

2400

20

22/3

2100

21

22/3

2400

22

22/3

2550

23

22/3

2250

24

22/3

2700

25

22/3

2100

26

22/3

2300

27

22/3

2400

28

22/3

2250

29

6/6

1800

30

6/6

1800

31

6/6

1950

32

6/6

2050

PSD and Total Power

Table 1-2 summarises the results of the PSD and total power measurements for each of the 15 reach configurations. Detailed results are presented in Section 2.3.

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VDSL System Reach Test Results Reference: ACT Memo 67 | Issue: 1c (8th August 2003)

Table 1-2 : VTU System PSD Results Summary

PSD 1

PSD Mask1 (Down/Up) Pass/Pass

10/10

PSD 2

Pass/Pass

3

10/10

PSD 3

Pass/Pass

4

13/13

PSD 1

Pass/Pass

5

13/13

PSD 2

Pass/Pass

6

13/13

PSD 3

Pass/Pass

7

13/13

PSD 4

Pass/Pass

8

16/1

PSD 1

Pass/Pass

9

16/1

PSD 2

Pass/Pass

10

22/3

PSD 1

Pass/Pass

11

22/3

PSD 2

Pass/Pass

12

22/3

PSD 3

Pass/Pass

13

22/3

PSD 4

Pass/Pass

14

6/6

PSD 2

Pass/Pass

15

6/6

PSD 4

Pass/Pass

1

Service (Mbit/s) (Down/Up) 10/10

2

Config

TX PSD Template Template

1. A “Pass” implies that the measured PSD was within the mask associated with the PSD template used in the test and the total power did not exceed 11.5dBm downstream and 14.5dBm upstream. The captured PSDs are presented in Appendix A.

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VDSL System Reach Test Results Reference: ACT Memo 67 | Issue: 1c (8th August 2003)

2

Test Results – Supplementary Reach Tests

This section provides the results of the reach tests as defined in [1].

2.1

System Details

Details of the VTU system used for this evaluation are contained in Table 2-1. Table 2-1 : System Details Firmware Version Serial Number LT: 01020108 NT: 01020111

2.2

2.2.1

1.07 BF

Interface

Other ?

10/100 Ethernet

VTU System Reach Testing

Detailed Reach Results Summary

Table 2-2 provides a summary of the results of the VTU system reach tests. The maximum loop length for which a BER of ≤10-7 and frame loss ratio