Keysight Technologies J-BERT M8020A Istruzioni operative

Programming

Guide

Keysight M8000 Series of BER

Test Solutions

J-BERT M8020A High-Performance BERT

M8030A Multi-Channel BERT

M8040A High-Performance BERT

Notices

No part of this manual may be reproduced

in any form or by any means (including

electronic storage and retrieval or transla-

tion into a foreign language) without prior

agreement and written consent from

Keysight Technologies as governed by

United States and international copyright

laws.

Trademarks

PCI Express® and PCIe® are registered

trademarks of PCI-SIG.

Manual Part Number

M8020-91040

Edition

Edition 9.1, August 2017

Keysight Technologies Deutschland GmbH

Herrenberger Strasse 130,

71034 Böblingen, Germany

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.

U.S. Government Rights

The Software is “commercial computer

software,” as defined by Federal Acquisition

Regulation (“FAR”) 2.101. Pursuant to FAR

12.212 and 27.405-3 and Department of

Defense FAR Supplement

(“DFARS”) 227.7202, the U.S. government

acquires commercial computer software

under the same terms by which the soft-

ware is customarily provided to the public.

Accordingly, Keysight provides the Soft-

ware to U.S. government customers under

its standard commercial license, which is

embodied in its End User License Agree-

ment (EULA), a copy of which can be found

at http://www.keysight.com/find/sweula.

The license set forth in the EULA represents

the exclusive authority by which the U.S.

government may use, modify,distribute,or

disclose the Software. The EULA and the

license set forth therein, does not require

or permit, among other things, that Key-

sight: (1) Furnish technical information

related to commercial computer software

or commercial computer software docu-

mentation that is not customarily provided

to the public; or (2) Relinquish to, or other-

wise provide, the government rights in

excess of these rights customarily provided

to the public to use, modify, reproduce,

release, perform, display, or disclose com-

mercial computer software or commercial

computer software documentation. No

additional government requirements

beyond those set forth in the EULA shall

apply, except to the extent that those

terms, rights, or licenses are explicitly

required from all providers of commercial

computer software pursuant to the FAR and

the DFARS and are set forth specifically in

writing elsewhere in the EULA. Keysight

shall be under no obligation to update,

revise or otherwise modify the Software.

With respect to any technical data as

defined by FAR 2.101, pursuant to FAR

12.211 and 27.404.2 and DFARS 227.7102,

the U.S. government acquires no greater

than Limited Rights as defined in FAR

27.401 or DFAR 227.7103-5 (c), as appli-

cable in any technical data.

Warranty

THE MATERIAL CONTAINED IN THIS DOCU-

MENT IS PROVIDED "AS IS," AND IS SUB-

JECT TO BEING CHANGED, WITHOUT

NOTICE, IN FUTURE EDITIONS. FURTHER,

TO THE MAXIMUM EXTENT PERMITTED BY

APPLICABLE LAW, KEYSIGHT DISCLAIMS

ALL WARRANTIES, EITHER EXPRESS OR

IMPLIED WITH REGARD TO THIS MANUAL

AND ANY INFORMATION CONTAINED

HEREIN, INCLUDING BUT NOT LIMITED TO

THE IMPLIED WARRANTIES OF MER-

CHANTABILITY AND FITNESS FOR A PAR-

TICULAR PURPOSE. KEYSIGHT SHALL NOT

BE LIABLE FOR ERRORS OR FOR INCIDEN-

TAL OR CONSEQUENTIAL DAMAGES IN

CONNECTION WITH THE FURNISHING,

USE, OR PERFORMANCE OF THIS DOCU-

MENT OR ANY INFORMATION CONTAINED

HEREIN. SHOULD KEYSIGHT AND THE

USER HAVE A SEPARATE WRITTEN AGREE-

MENT WITH WARRANTY TERMS COVER-

ING THE MATERIAL IN THIS DOCUMENT

THAT CONFLICT WITH THESE TERMS, THE

WARRANTY TERMS IN THE SEPARATE

AGREEMENT WILL CONTROL.

Safety Notices

CAUTION

A CAUTION notice denotes a hazard.

It calls attention to an operating pro-

cedure, 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 pro-

cedure, 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.

2Keysight M8070A Programming Guide

Keysight M8070A Programming Guide 3

Safety Summary

The following general safety precautions must be observed during all phases of operation

of this instrument. Failure to comply with these precautions or with specific warnings or

operating instructions in the product manuals violates safety standards of design,

manufacture and intended use of the instrument. Keysight Technologies assumes no

liability for the customer's failure to comply with these requirements. Product manuals

are provided with your instrument on CD-ROM and/or in printed form. Printed manuals

are an option for many products. Manuals may also be available on the Web. Go to

www.keysight.com and type in your product number in the Search field at the top of the

page.

General This product is a Safety Class 1 instrument (provided with a protective earth terminal).

The protective features of this product may be impaired if it is used in a manner not

specified in the operation instructions.

All Light Emitting Diodes (LEDs) used in this product are Class 1 LEDs as per IEC

60825-1.

Environment Conditions This instrument is intended for indoor use in an installation category II, pollution degree 2

environment. It is designed to operate at a maximum relative humidity of 95% and at

altitudes of up to 2000 meters.

Refer to the specifications tables for the ac mains voltage requirements and ambient

operating temperature range.

Before Applying Power Verify that all safety precautions are taken. The power cable inlet of the instrument serves

as a device to disconnect from the mains in case of hazard. The instrument must be

positioned so that the operator can easily access the power cable inlet. When the

instrument is rack mounted the rack must be provided with an easily accessible mains

switch.

Ground the Instrument To minimize shock hazard, the instrument chassis and cover must be connected to an

electrical protective earth ground. The instrument must be connected to the ac power

mains through a grounded power cable, with the ground wire firmly connected to an

electrical ground (safety ground) at the power outlet. Any interruption of the protective

(grounding) conductor or disconnection of the protective earth terminal will cause a

potential shock hazard that could result in personal injury.

Do Not Operate in an

Explosive Atmosphere

Do not operate the instrument in the presence of flammable gases or fumes.

Do Not Remove the

Instrument Cover

Operating personnel must not remove instrument covers. Component replacement and

internal adjustments must be made only by qualified personnel.

Instruments that appear damaged or defective should be made inoperative and secured

against unintended operation until they can be repaired by qualified service personnel.

4Keysight M8070A Programming Guide

Safety Symbols

Table 1 Safety Symbol

Symbol Description

Indicates warning or caution. If you see this symbol on a

product, you must refer to the manuals for specific

Warning or Caution information to avoid personal injury

or damage to the product.

Frame or chassis ground terminal. Typically connects to

the equipment’s metal frame.

KC is the Korean certification mark to demonstrate that

the equipment is Class A suitable for professional use

and is for use in electromagnetic environments outside

of the home.

Indicates that antistatic precautions should be taken.

Indicates the time period during which no hazardous or

toxic substance elements are expected to leak or

deteriorate during normal use. Forty years is the

expected useful life of the product.

The RCM Mark is a compliance mark to the ACMA

(Australian Spectrum Management Agency). This

indicates compliance with all Australian EMC

regulatory information.

Keysight M8070A Programming Guide 5

Compliance and Environmental Information

Table 2 Compliance and Environmental Information

Safety Symbol Description

This product complies with WEEE Directive (2002/96/EC) marking requirements.

The affixed label indicates that you must not discard this electrical/electronic

product in domestic household waste.

Product Category: With reference to the equipment types in WEEE Directive Annex I,

this product is classed as a “Monitoring and Control instrumentation” product.

Do not dispose in domestic household waste.

To return unwanted products, contact your local Keysight office, or see

http://about.keysight.com/en/companyinfo/environment/takeback.shtml

for more information.

Keysight M8070A Programming Guide 7

Contents

Safety Summary 3

Safety Symbols 4

Compliance and Environmental Information 5

1 Programming Basics

Modular Configuration 14

M8020A Modular Configuration 14

M8030A Modular Configuration 17

M8040A Modular Configuration 19

Using Identifiers 21

Location Identifiers 21

Group Name Identifiers 22

Measurement Name Identifiers 22

PLUGin Subsystem 23

2 Recommended Programming Techniques

Output Protection 26

Pattern Generator Output Termination 26

Output Protection Algorithm 26

Controlling the Output Levels 27

Controlling the Output Levels - Concepts 27

Controlling the Output Levels - Procedures 27

Allowing the M8020A/M8030A/M8040A to Settle 28

Allowing the M8020A/M8030A/M8040A to Settle - Concepts 28

8Keysight M8070A Programming Guide

Contents

Reading the M8020A/M8030A/M8040A’s Status 29

Reading the M8020A/M8030A/M8040A’s Status - Concepts 29

M8020A/M8030A/M8040A Status Reporting Structure 32

Working with Patterns 36

Symbol Coding Descriptions 37

Symbol Sequences 42

Creating Pattern Sequences 43

Sequence Editor 43

Pattern Sequence Building Blocks 45

Sequencer Triggers 49

Block Branching 50

Link Training Events 51

Block Controls 51

Coding Configuration 52

Link Training Configuration 56

Downloading Pattern Sequence to Hardware 58

3 Programming Examples

Introduction 60

Initializing the Connection 60

N4903B Initialization 60

M8020A Initialization 61

SJ Example 62

N4903B SJ Example 62

M8020A SJ Example 64

PJ Ex am ple 68

N4903B PJ Example 68

M8020A PJ Example 70

Sampling Point Alignment Example 74

N4903B Sampling Point Alignment Example 74

M8020A Sampling Point Alignment Example 76

Keysight M8070A Programming Guide 9

Contents

BER Example 78

N4903B BER Example 78

M8020A BER Example 79

M8070A Jitter Tolerance Measurement CSV Output 83

4 SCPI Command Language

SCPI Command Language - Introduction 86

SCPI Common Commands 86

SCPI Instrument Control Commands 86

IEEE 488.2 Mandatory Commands 87

Overlapped and Sequential Commands 87

Data Types 88

Important Points about SCPI 89

Important Points about SCPI - Concepts 89

Sending Commands to the M8020A/M8030A/M8040A 93

Sending Commands to the M8020A/M8030A/M8040A - Overview 93

Sending Commands using VISA 93

Command Line Arguments 94

Communication 95

5 SCPI Command Reference

Subsystems 98

IEEE Commands - Reference 100

Mandatory Commands 100

SCPI Standard Commands 106

Miscellaneous Commands 107

Command Syntax to Find Min/Max Values 108

Location and Module Mapping - Reference 109

10 Keysight M8070A Programming Guide

Contents

STATus Subsystem 110

:STATus:QUEStionable Subnode 111

:STATus:OPERation Subnode 121

:STATus:INSTrument Subnode 125

TRIGger Subsystem 129

Source Subsystem 136

[:SOURce]:PULSe Subnode 141

[:SOURce]:VOLTage Subnode 145

[:SOURce]:JITTer Subnode 149

[:SOURce]:JITTer:HFRequency Subnode 152

[:SOURce]:JITTer:HFRequency:PERiodic Subnode 155

[:SOURce]:JITTer:HFRequency:BUNCorrelate Subnode 158

[:SOURce]:JITTer:HFRequency:RANDom Subnode 162

[:SOURce]:JITTer:HFRequency:SPECtrally Subnode 166

[:SOURce]:JITTer:LFRequency Subnode 169

[:SOURce]:JITTer:LFRequency:PERiodic Subnode 171

[:SOURce]:JITTer:LFRequency:RSSClocking Subnode 173

[:SOURce]:JITTer:SWEep Subnode 175

[:SOURce]:SSCLocking Subnode 182

[:SOURce]:INTerference Subnode 187

[:SOURce]:INTerference:RANDom Subnode 198

[:SOURce]:INTerference:SINUsoidal Subnode 201

[:SOURce]:CONFigure Subnode 202

OUTPut Subsystem 203

:OUTPut:DEEMphasis Subnode 212

:OUTPut:EINSertion Subnode 221

:OUTPut:TRIGger Subnode 225

:OUTPut:DEMBedding Subnode 227

:OUTPut:EMBedding Subnode 230

INPut Subsystem 233

:INPut:CDR Subnode 245

:INPut:ALIGnment Subnode 253

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