Agilent Technologies J-BERT N4903B Manuale utente

Agilent J-BERT N4903B

High-Performance Serial

BERT

User Guide

sAgilent Technologies

No part of this manual may be reproduced in

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electronic storage and retrieval or translation

into a foreign language) without prior

agreement and written consent from Agilent

Technologies, Inc. as governed by United

States and international copyright laws.

Manual Part Number

N4903-91021

Edition

Release Edition, June 2014

Printed in Germany

Agilent Technologies, Deutschland GmbH

Herrenberger Str. 130

71034 Böblingen, Germany

Warranty

The material contained in this

document is provided "as is," and is

subject to being changed, without

notice, in future editions. Further, to the

maximum extent permitted by

applicable law, Agilent disclaims all

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including but not limited to the implied

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shall not be liable for errors or for

incidental or consequential damages

in connection with the furnishing, use,

or performance of this document or of

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Should Agilent and the user have a

separate written agreement with

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in this document that conflict with

these terms, the warranty terms in the

separate agreement shall control.

Technology Licenses

The hardware and/or software described in

this document are furnished under a license

and may be used or copied only in

accordance with the terms of such license.

Restricted Rights Legend

If software is for use in the performance of a

U.S. Government prime contract or

subcontract, Software is delivered and

licensed as "Commercial computer

software" as defined in DFAR 252.227-7014

(June 1995), or as a "commercial item" as

defined in FAR 2.101(a) or as "Restricted

computer software" as defined in FAR

52.227-19 (June 1987) or any equivalent

agency regulation or contract clause. Use,

duplication or disclosure of Software is

subject to Agilent Technologies' standard

commercial license terms, and non-DOD

Departments and Agencies of the U.S.

Government will receive no greater than

Limited Rights as defined in FAF 52.227-14

(June 1987) or DFAR 252.227-7015(b)(2)

(November 1995), as applicable in any

technical data.

Safety Notices

CAUTION

A CAUTION notice denotes a hazard. It

calls attention to an operating

procedure, practice, or the like that, if not

correctly performed or adhered to, could

result in damage to the product or loss

of important data. Do not proceed

beyond a CAUTION notice until the

indicated conditions are fully

understood and met.

WARNING

A WARNING notice denotes a hazard.

It calls attention to an operating

procedure, practice, or the like that, if

not correctly performed or adhered to,

could result in personal injury or death.

Do not proceed beyond a WARNING

notice until the indicated conditions

are fully understood and met.

Notices

Contents

1Planning the Test

Planning the Test - Concepts 11

Introduction to the Serial BERT 11

Introduction to the Serial BERT - Concepts 11

Navigating the Serial BERT GUI 18

Navigating the Serial BERT GUI - Concepts 18

Which Test is Appropriate? 25

Which Test is Appropriate? - Concepts 25

Connecting the DUT 29

Connecting the DUT - Concepts 29

2Setting up External Instrument(s)

Setting up External Instrument(s) - Concepts 37

Setting up External Instrument(s) - Procedure 42

Setting up External Instrument(s) - Reference 51

3Setting up Patterns

Setting up Patterns - Concepts 61

User Patterns 65

User Patterns - Concepts 65

User Patterns - Procedures 71

User Patterns - Reference 76

Software-Generated PRBS 91

Software-Generated PRBS - Concepts 91

Software-Generated PRBS - Procedures 93

Software-Generated PRBS - Reference 93

Hardware-Generated PRBS 93

Hardware-Generated PRBS - Concepts 93

Hardware-Generated PRBS - Procedures 95

Hardware-Generated PRBS - Reference 95

Agilent J-BERT N4903B High-Performance Serial BERT 3

User-Defined Sequences 96

User-Defined Sequences - Concepts 96

User-Defined Sequences - Procedures 99

User-Defined Sequences - Reference 101

Sequencer-Pattern Editor 108

Sequencer-Pattern Editor - Concepts 108

Sequencer-Pattern Editor - Procedure 108

Sequencer-Pattern Editor - Reference 110

4Setting up the Pattern Generator

Setting up the Pattern Generator - Concepts 121

Input and Output Ports 122

Input and Output Ports - Concepts 122

Input and Output Ports - Procedures 131

Input and Output Ports - Reference 135

Bit Rate 139

Bit Rate - Concepts 139

Bit Rate - Procedures 141

Bit Rate - Reference 143

Trigger/Ref Clock Output 145

Trigger/Ref Clock Output - Concepts 145

Trigger/Ref Clock Output - Procedures 145

Trigger/Ref Clock Output - Reference 146

Aux Data Out 149

Aux Data Output - Concepts 149

Aux Data Out - Procedures 149

Aux Data Output - Reference 154

Delay Control Input 155

Delay Control Input - Concepts 155

Delay Control Input - Procedures 156

Delay Control Input - Reference 156

Error Addition/Insertion 157

Error Addition/Insertion - Concepts 157

Error Addition/Insertion - Procedures 157

Error Addition/Insertion - Reference 159

Pattern Alternation 161

Pattern Alternation - Concepts 161

Pattern Alternation - Procedures 162

Pattern Alternation - Reference 164

4Agilent J-BERT N4903B High-Performance Serial BERT

5Setting up the Error Detector

Setting up the Error Detector - Concepts 167

Inputs and Outputs 168

Inputs and Outputs - Concepts 168

Inputs and Outputs - Procedures 171

Data Input Setup - Reference 172

Clock Setup 173

Clock Setup - Concepts 173

Clock Setup - Procedures 178

Clock Setup - Reference 179

Error Ratio 182

Error Ratio - Concepts 182

Error Ratio - Procedures 185

Error Ratio - Reference 190

Sampling Point Setup 193

Sampling Point Setup - Concepts 193

Sampling Point Setup - Procedures 196

Sampling Point Setup - Reference 198

Trigger and Aux Output 203

Trigger and Aux Output - Concepts 203

Trigger and Aux Output - Procedures 203

Trigger and Aux Output - Reference 204

Pattern Synchronization 205

Pattern Synchronization - Concepts 205

Pattern Synchronization - Procedures 216

Pattern Synchronization - Reference 218

Error Accumulation 220

Error Accumulation - Concepts 220

Error Accumulation - Procedures 220

Error Accumulation - Reference 221

BER Location 223

BER Location - Concepts 223

BER Location - Procedures 223

BER Location - Reference 223

Audio Signals 224

Audio Signals - Concepts 224

Audio Signals - Procedures 225

Audio Signals - Reference 225

Agilent J-BERT N4903B High-Performance Serial BERT 5

6Advanced Analysis

Advanced Analysis - Concepts 227

Advanced Analysis - Procedures 229

Advanced Analysis - Reference 234

DUT Output Timing/Jitter 241

DUT Output Timing/Jitter - Concepts 241

DUT Output Timing/Jitter - Procedures 250

DUT Output Timing/Jitter - Reference 252

Output Levels 263

Output Levels - Concepts 263

Output Levels - Procedures 265

Output Levels - Reference 270

Eye Opening 287

Eye Opening - Concepts 287

Eye Opening - Procedures 289

Eye Opening - Reference 294

Error Location Capture 302

Error Location Capture - Concepts 302

Error Location Capture - Procedures 304

Error Location Capture - Reference 305

Fast Eye Mask 307

Fast Eye Mask - Concepts 307

Fast Eye Mask - Procedures 309

Fast Eye Mask - Reference 311

Eye Diagram 315

Eye Diagram - Concepts 315

Eye Diagram - Procedures 320

Eye Diagram - Reference 332

Spectral Jitter 342

Spectral Jitter - Concepts 342

Spectral Jitter - Procedures 351

Spectral Jitter - Reference 353

7Evaluating Results

Evaluating Results - Concepts 361

Instantaneous Measurements 361

Instantaneous Measurements - Concepts 361

Instantaneous Measurements - Procedures 363

Instantaneous Measurements - Reference 366

6Agilent J-BERT N4903B High-Performance Serial BERT

Accumulated Measurements 376

Accumulated Measurements - Concepts 376

Accumulated Measurements - Procedures 377

Accumulated Measurements - Reference 378

Eye Measurements 392

Eye Measurements - Concepts 392

Eye Measurements - Procedures 392

Eye Measurements - Reference 393

8Jitter Tolerance Tests

Jitter Tolerance Tests - Concepts 395

Jitter Setup 404

Jitter Setup - Concepts 404

Jitter Setup - Procedures 407

Jitter Setup - Reference 413

Interference Channel Setup 431

Interference Channel Setup - Concepts 431

Interference Channel Setup - Procedures 431

Interference Channel Setup - Reference 432

Jitter Tolerance Characterization 433

Jitter Tolerance Characterization - Concepts 433

Jitter Tolerance Characterization - Procedures 438

Jitter Tolerance Characterization - Reference 443

Jitter Tolerance Compliance 446

Jitter Tolerance Compliance - Concepts 446

Jitter Tolerance Compliance - Procedures 454

Jitter Tolerance Compliance - Reference 462

9Solving Problems

Solving Problems - Concepts 469

Setup Problems 469

Setup Problems - Concepts 469

Measurement Problems 472

Measurement Problems - Concepts 472

Other Messages 478

Other Messages - Concepts 478

N4916B System Setup Calibration 480

Agilent J-BERT N4903B High-Performance Serial BERT 7

N4876A System Setup Adjustment 490

M8061A System Setup Adjustment 492

Problems with the N4916A 493

Problems with the N4916A - Concepts 493

Problems with the N4916B 500

Problems with the N4916B - Concepts 500

Problems with the N4876A 511

Problems with the N4876A - Concepts 511

Problems with the M8061A 518

Problems with the M8061A - Concepts 518

10 Customizing the Instrument

Customizing the Instrument - Concepts 525

Restoring the System 525

Agilent Recovery System - Procedures 525

Configuring the Instrument 528

Configuring the Instrument - Concepts 528

Configuring the Instrument - Procedures 529

Configuring the Instrument - Reference 531

Configuring the Touchscreen 531

Configuring the Touchscreen - Procedures 531

Configuring the Touchscreen - Reference 533

Installing Software Licenses 535

Installing Software Licenses - Procedures 535

Installing Software Licenses - Reference 535

Installing Hardware Options 536

Installing Hardware Options - Procedures 536

Installing External Instrument(s) 538

Installing External Instrument(s) - Concepts 538

Installing the N4916A/B - Procedure 539

Installing the N4876A - Procedure 544

Installing the M8061A - Procedure 549

Installing Webserver 551

Customizing the Web Server- Concept 551

Printing 555

Printing - Procedures 555

8Agilent J-BERT N4903B High-Performance Serial BERT

File Management 558

File Management - Procedures 558

Preset Instrument State 562

Preset Instrument State - Procedures 562

Self Test 563

Self Test - Concepts 563

Self Test - Procedures 563

Self Test - Reference 564

Index 567

Agilent J-BERT N4903B High-Performance Serial BERT 9

10 Agilent J-BERT N4903B High-Performance Serial BERT

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