DLS DLS 400A Bedienungsanleitung

Revision 0

21 September 1999

Te s t W r k s

Operatin

Manual

DLS 400A/H/N/HN

Wireline Simulator

DLS 400 Operating Manual

Page iii

Table of Contents

1. INTRODUCTION .................................................................................................1

1.1 About the DLS 400 ADSL Wireline Simulator ....................................................1

1.2 About this Manual .................................................................................................2

2. QUICK START ......................................................................................................3

3. GETTING STARTED .........................................................................................4

3.1 Receiving and Unpacking the Unit .......................................................................4

3.2 Hardware and Software Requirements ..................................................................4

3.3 DLS 400 Front and Rear Panels ............................................................................5

3.4 Digital Connections ...............................................................................................6

3.5 Analog connections ...............................................................................................7

3.6 RJ–45 Adapter .......................................................................................................8

3.7 LEDs ...................................................................................................................... 8

3.8 Connecting Power to the DLS 400 ........................................................................9

3.9 DLS 400 Self-Test .................................................................................................9

3.10 National Instruments GPIB Card and Software Installation ...............................9

3.10.1 Installing National Instruments GPIB Software

(IEEE 488 operation only) ..........................................................................10

3.10.2 Installing the GPIB–PCII/IIA Card (IEEE 488 operation only) ................10

3.10.3 How to Check if the NI card is installed properly ......................................12

4. DLS 400 SOFTWARE ........................................................................................13

4.1 Overview .............................................................................................................13

4.2 Software Installation ...........................................................................................13

4.3 Initial Screen .......................................................................................................13

4.3.1 Changing Communications Mode ................................................................14

4.4 Unit Configuration ..............................................................................................15

4.5 Main Control Screen ...........................................................................................16

4.5.1 Loading and Saving Settings ........................................................................17

4.5.1.1 Loading Standards Impairments Settings ......................................................18

4.6 Impairments Control Panel ..................................................................................19

4.6.1 Editing Impairments Screen ..........................................................................20

4.6.2 Edit Longitudinal Voltage (Common Mode Impairments) ...........................23

4.7 Impulse Control ...................................................................................................24

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4.8 Operating Two or More Units from the 400 Series Concurrently .......................24

5. SYSTEM DESCRIPTION ...............................................................................25

5.1 DLS 400 Description ...........................................................................................25

5.2 DLS 400 Unit Loopset Configurations ...............................................................26

5.3 Loop Descriptions ...............................................................................................28

5.3.1 CSA Loops ....................................................................................................28

5.3.2 ANSI Loops ...................................................................................................31

5.3.3 EIA Loops .....................................................................................................34

5.3.4 Variable Loops ..............................................................................................35

5.3.5 Reversing Loops ............................................................................................36

6. ADSL NOISE GENERATOR DESCRIPTION ......................................38

6.1 General ................................................................................................................38

6.2 Grouped Impairments ..........................................................................................38

6.2.1 Basic Rate Testing, ANSI T1.E1 T1.601 standard ........................................39

6.2.2 HDSL Rate Testing, ANSI Technical Report on HDSL ................................39

6.2.3 HDSL2 Rate Testing, ANSI Proposed Working Draft for

HDSL2 Standard (T1E1.4/98–268) ..............................................................39

6.2.4 ADSL Rate Testing, ANSI T1.413, Issue I and II ..........................................40

6.2.5 ADSL Rate Testing, ITU Standard for G.lite ................................................40

6.2.6 Basic Rate Testing, ETSI TS 102 080 ISDN Standard ..................................40

6.2.7 HDSL Rate Testing, ETSI TS 101 135 HDSL Standard ...............................41

6.2.8 European ADSL rate testing, ETSI ETR 328 ADSL Standard ......................41

6.3 Individual Impairments .......................................................................................41

6.4 Impairment Card Organization ............................................................................46

6.5 Output Stage ........................................................................................................47

6.6 Crosstalk Generators A and B .............................................................................48

6.7 Crosstalk Generator C .........................................................................................49

6.8 Shaped Noise Generator ......................................................................................50

6.9 Flat White Noise Generator .................................................................................50

6.10 Impulse Generator .............................................................................................50

6.11 External Noise ...................................................................................................52

6.12 Powerline Related Impairments ........................................................................52

6.12.1 Metallic Noise .............................................................................................53

6.12.2 Longitudinal Noise ......................................................................................53

6.12.3 DLS 200 Mode Crosstalk and White Noise ................................................55

DLS 400 Operating Manual

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7. REMOTE CONTROL ......................................................................................56

7.1 IEEE 488 Interface ..............................................................................................56

7.1.1 DLS 400 IEEE 488 Address. .........................................................................57

7.1.2 The Service Request (SRQ) Line ...................................................................57

7.1.3 Resetting the DLS 400 ..................................................................................58

7.1.4 Message Terminators ....................................................................................58

7.1.5 Example using the IEEE 488 Interface .........................................................59

7.2 RS–232 Serial Interface ......................................................................................60

7.2.1 Message Terminators ....................................................................................60

7.2.2 Example using the RS–232 Interface ............................................................61

7.3 Data formats ........................................................................................................61

7.4 Command Syntax ................................................................................................62

8. REMOTE CONTROL: COMMON COMMAND SET ......................64

8.1 Status Reporting ..................................................................................................69

8.1.1 Status Byte Register (STB) ............................................................................69

8.1.2 Event Status Register (ESR) ..........................................................................70

8.2 DLS 400 Synchronization ...................................................................................71

9. REMOTE CONTROL: DEVICE DEPENDENT COMMANDS ....73

9.1 Device Dependent Command Set for Loops .......................................................73

9.1.1 :SETting:CHANnel:LOOP <Loop Name> ..................................................74

9.1.2 :SETting:CHANnel:TAP_A <NRf> ..............................................................77

9.1.3 :SETting:CHANnel:LINE <NRf> .................................................................77

9.1.4 SETting:CHANnel:TAP_B <NRf> ...............................................................78

9.1.5 :SETting:CHANnel:DIRection FORward|REVerse .....................................79

9.1.6 :SETting:CHANnel:BYpass <NO|YES> ......................................................79

9.1.7 :SETting:PWRline:LONGitudinal:STate <OFF/ON> .................................79

9.2 Device Dependent Command Set for Impairments .............................................80

9.2.1 Impairments Commands Summary ...............................................................80

9.2.2 Crosstalk Generator A ..................................................................................81

9.2.2.1 XTalk Generator A – Type ...........................................................................81

9.2.2.2 Xtalk Generator A – Level ..........................................................................81

9.2.2.3 Xtalk Generator A – Program ......................................................................81

9.2.3 Crosstalk Generator B ..................................................................................82

9.2.3.1 Xtalk Generator B – Type ............................................................................82

9.2.3.2 Xtalk Generator B – Level ...........................................................................82

DLS 400 Operating Manual

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9.2.3.3 Xtalk Generator B – Program ......................................................................82

9.2.4 Crosstalk Generator C ..................................................................................82

9.2.4.1 Xtalk Generator C – Type ............................................................................82

9.2.4.2 Xtalk Generator C – Level ...........................................................................83

9.2.4.3 Xtalk Generator C – Program ......................................................................83

9.2.5 Shaped Noise Generator ...............................................................................83

9.2.5.1 Shaped Noise Generator – Type ...................................................................83

9.2.5.2 Shaped Noise Generator – Level ..................................................................84

9.2.5.3 Shaped Noise Generator – Program ..............................................................84

9.2.6 White Noise Generator .................................................................................84

9.2.6.1 Flat White Noise Generator – State ..............................................................84

9.2.6.2 Flat White Noise Generator – Level .............................................................84

9.2.7 Impulses ........................................................................................................85

9.2.7.1 Impulses – Type .........................................................................................85

9.2.7.2 Impulses – Width ........................................................................................85

9.2.7.3 Impulses – Level ........................................................................................85

9.2.7.4 Impulses – Rate ..........................................................................................85

9.2.7.5 Impulses – Single Shot ................................................................................86

9.2.8 Powerline Related Impairments ...................................................................86

9.2.8.1 Metallic Noise Sine Wave Generators ...........................................................86

9.2.8.1.1 Harmonic #1 Frequency ............................................................................86

9.2.8.1.2 Harmonic #2 Frequency ............................................................................86

9.2.8.3 Longitudinal Noise Triangle Wave Generator ................................................87

9.2.9 Quiet .............................................................................................................87

9.2.10 Output Stage ...............................................................................................88

10. CHARACTERISTICS OF FIXED LOOPS ...........................................89

10.1 CSA Loops ........................................................................................................90

10.1.1 CSA Loop #1 ...............................................................................................90

10.1.2 CSA Loop #2 ...............................................................................................92

10.1.3 CSA Loop #3 ...............................................................................................94

10.1.4 CSA Loop #4 ...............................................................................................96

10.1.5 CSA Loop #5 ...............................................................................................98

10.1.6 CSA Loop #6 .............................................................................................100

10.1.7 CSA Loop #7 .............................................................................................102

10.1.8 CSA Loop #8 .............................................................................................104

10.1.9 Extended-CSA Loop #9 .............................................................................106

10.1.10 Extended-CSA Loop #10 .........................................................................108

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10.1.11 Mid-CSA Loop #0 ................................................................................... 110

10.1.12 Mid-CSA Loop #1 ................................................................................... 112

10.1.13 Mid-CSA Loop #2 ................................................................................... 114

10.1.14 Mid-CSA Loop #3 ................................................................................... 116

10.1.15 Mid-CSA Loop #4 ................................................................................... 118

10.1.16 Mid-CSA Loop #5 ...................................................................................120

10.1.17 Mid-CSA Loop #6 ...................................................................................122

10.2 ANSI Loops .....................................................................................................124

10.2.1 ANSI Loop #1 ............................................................................................124

10.2.2 ANSI Loop #2 ............................................................................................126

10.2.3 ANSI Loop #3 ............................................................................................128

10.2.4 ANSI Loop #4 ............................................................................................130

10.2.5 ANSI Loop #5 ............................................................................................132

10.2.6 ANSI Loop #6 ............................................................................................134

10.2.7 ANSI Loop #7 ............................................................................................136

10.2.8 ANSI Loop #8 ............................................................................................138

10.2.9 ANSI Loop #9 ............................................................................................140

10.2.10 ANSI Loop #11 ........................................................................................142

10.2.11 ANSI Loop #12 ........................................................................................144

10.2.12 ANSI Loop #13 ........................................................................................146

10.2.13 ANSI Loop #15 ........................................................................................148

10.2.14 Mid-ANSI Loop #7 ..................................................................................150

10.3 EIA Loops .......................................................................................................152

10.3.1 EIA Loop #1 ..............................................................................................152

10.3.2 EIA Loop #2 ..............................................................................................154

10.3.3 EIA Loop #3 ..............................................................................................156

10.3.4 EIA Loop #4 ..............................................................................................158

10.3.5 EIA Loop #5 ..............................................................................................160

11. CHARACTERISTICS OF IMPAIRMENTS ......................................162

11.1 Noise shapes produced by Generators A & B .................................................162

11.2 Noise shapes produced by Generator C ...........................................................168

12. TROUBLESHOOTING ...............................................................................173

13. REFERENCES ................................................................................................175

DLS 400 Operating Manual

Page viii

14. WARRANTY ....................................................................................................177

15. SHIPPING THE DLS 400 ...........................................................................179

16. SPECIFICATIONS ........................................................................................180

16.1 General ............................................................................................................180

16.2 Simulated loops ...............................................................................................180

16.2.1 DLS 400 Unit Configurations ...................................................................180

16.2.1 Description ...............................................................................................182

16.3 Impairments Card ............................................................................................183

16.3.1 White Noise Generator .............................................................................183

16.3.2 NEXT Generators A and B .......................................................................184

16.3.3 NEXT Generator C ...................................................................................185

16.3.4 Multi Tone Generator ...............................................................................185

16.3.5 Impulses ....................................................................................................186

16.3.6 Powerline Related Metallic Noise ............................................................186

16.3.7 Longitudinal Noise ....................................................................................186

16.3.8 Externally Generated Signals ...................................................................186

16.4 Mechanical ......................................................................................................187

16.5 IEEE 488 Remote Control ...............................................................................187

16.6 RS–232 Remote Control .................................................................................187

16.7 Included ...........................................................................................................188

16.8 Options ............................................................................................................188

16.9 Electrical ..........................................................................................................188

16.9.1 AC Power ..................................................................................................188

16.9.2 On Simulated Wireline ..............................................................................188

16.10 Environmental ...............................................................................................189

16.11 Physical ..........................................................................................................189

16.12 Operating Conditions ....................................................................................189

17. SAFETY ..............................................................................................................190

17.1 Information ......................................................................................................190

17.1.1 Protective Grounding (Earthing) ..............................................................190

17.1.2 Before Operating the Unit ........................................................................190

17.1.3 Power Supply Requirements .....................................................................191

17.1.4 Main Fuse Type ........................................................................................191

DLS 400 Operating Manual

Page ix

17.1.5 Connections to a Power Supply ................................................................191

17.1.6 Operating Environment ............................................................................191

17.1.7 Class of Equipment ...................................................................................191

17.2 Instructions ......................................................................................................191

17.2.1 Before Operating the Unit ........................................................................192

17.2.2 Operating the Unit ....................................................................................192

17.3 Symbols ...........................................................................................................193

APPENDIX A. INTERPRETATION OF LEVEL UNITS ....................195

APPENDIX B. DLS 200 MODE ......................................................................198

APPENDIX C. MEASUREMENTS ...............................................................199

C.1 Measurement of Wireline Simulators ...............................................................199

C.2 Common Errors ................................................................................................200

APPENDIX D. NOISE GENERATOR CONNECTIONS ....................201

APPENDIX E. COMMONLY ASKED QUESTIONS ............................204

APPENDIX F. PROGRAM EXAMPLE .......................................................206

F.1 Downloadable Crosstalk Noise .........................................................................206

F.2 Captured Programming Commands ..................................................................210

DLS 400 Operating Manual

Page x

Table of Figures

Figure 3.1 DLS 400 Front Panel ....................................................................................5

Figure 3.2 DLS 400 Back Panel .....................................................................................6

Figure 3.3 DLS 400 Internal Connection Paths .............................................................8

Figure 4.1 Initial Screen ...............................................................................................14

Figure 4.2 Main Control Screen ...................................................................................15

Figure 4.3 System Configuration Screen .....................................................................15

Figure 4.4 Control Screen showing CSA Loop #4 .......................................................16

Figure 4.5 Load Impairments Combination from Standards ........................................18

Figure 4.6 Impairments Control Panel .........................................................................19

Figure 4.7 Editing Impairments Screen ........................................................................21

Figure 4.8 Edit Longitudinal Voltage ...........................................................................23

Figure 4.9 Impulse Control Screen ...............................................................................24

Figure 6.1 System Configuration Screen .....................................................................38

Figure 6.2 Loading all impairments .............................................................................42

Figure 6.3 Impairments combinations ..........................................................................42

Figure 6.4 Impairment Generators Block Diagram ......................................................47

Figure 6.5 Cook Pulse ..................................................................................................51

Figure 6.6 ADSL Impulse c1 .......................................................................................51

Figure 6.7 ADSL Impulse c2 .......................................................................................52

Figure 6.8 ANSI Longitudinal Load Configuration .....................................................54

Figure 6.9 ETSI Longitudinal Load Configuration ......................................................54

Figure 11.1 T1.601 NEXT ...........................................................................................162

Figure 11.2 DSL NEXT ...............................................................................................162

Figure 11.3 HDSL NEXT ............................................................................................163

Figure 11.4 HDSL + ADSL NEXT ..............................................................................163

Figure 11.5 T1.413 II EC ADSL upstream NEXT .......................................................164

Figure 11.6 T1.413 II EC ADSL upstream FEXT (9 kft 26 AWG) .............................164

Figure 11.7 T1.413 II FDM ADSL upstream NEXT/

ITU-T NA ADSL Upstream NEXT ..........................................................165

Figure 11.8 ITU-T NA FDM ADSL Downstream FEXT ............................................165

Figure 11.9 ITU-T NA ADSL Upstream FEXT ..........................................................166

Figure 11.10 HDSL2 downstream NEXT (H2TUC) .....................................................166

Figure 11.11 HDSL2 upstream NEXT (H2TUR) ..........................................................167

Figure 11.12 ITU-T Euro-K or Kirkby noise .................................................................167

Figure 11.13 ADSL FEXT (T1.413, Issue I & II) ..........................................................168

Figure 11.14 Model A ....................................................................................................168

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