Viavi MSAM User manual

Multiple Services Application
Module (MSAM)
Data Communications and Diphase Testing
Manual
JDSU HS Datacom Module Specs
Provided by www.AAATesters.com

Viavi Solutions
1-844-GO-VIAVI
www.viavisolutions.com
Multiple Services
Application Module
(MSAM)
Data Communications and Diphase
Testing Manual

Data Communications and Diphase Testing Manual
Page ii 21148872, Rev. 002 January 2016
Notice
Every effort was made to ensure that the information in this manual was accurate at the
time of printing. However, information is subject to change without notice, and Viavi
reserves the right to provide an addendum to this manual with information not available
at the time that this manual was created.
Copyright/Trademarks
© Copyright 2016 Viavi Solutions Inc. All rights reserved. No part of this guide may be
reproduced or transmitted, electronically or otherwise, without written permission of the
publisher. Viavi Solutions and the Viavi logo are trademarks of Viavi Solutions Inc.
(“Viavi”). All other trademarks and registered trademarks are the property of their
respective owners.
Copyright release
Reproduction and distribution of this guide is authorized for US Government purposes
only.
Ordering information
The catalog number for a printed Data Communications and Diphase Testing Manual
is ML-21138652. The catalog number for electronic manuals on USB is CEML-
21138299.
Terms and conditions
Specifications, terms, and conditions are subject to change without notice. The provi-
sion of hardware, services, and/or software are subject to Viavi’s standard terms and
conditions, available at www.viavisolutions.com/en/terms-and-conditions.
Open Source Disclaimer - IMPORTANT READ CAREFULLY
The MSAM, 40/100G Transport Module, and T-BERD / MTS 5800 include third party
software licensed under the terms of separate open source software licenses. By using
this software you agree to comply with the terms and conditions of the applicable open
source software licenses. Software originated by Viavi is not subject to third party
licenses. Terms of the Viavi Software License different from applicable third party
licenses are offered by Viavi alone.
Industry Canada Requirements
This device complies with Industry Canada license-exempt RSS standard(s). Operation
is subject to the following two conditions: (1) this device may not cause interference,
and (2) this device must accept any interference, including interference that may cause
undesired operation of the device.

Data Communications and Diphase Testing Manual
January 2016 21148872, Rev. 002 Page iii
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appar-
eils radio exempts de licence. L'exploitation est autorisée aux deux conditions suiva-
ntes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en
compromettre le fonctionnement.
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
FCC Notice
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in
a commercial installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case, the user will be
required to correct the interference at this own expense. However, there is no guar-
antee that interference will not occur in a particular installation.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2)
This device must accept any interference received, including interference that may
cause undesired operation. This device contains FCC-ID: POOWMLC40.
If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
In order to maintain compliance with the limits of a Class A digital device ViaviViavi
requires that quality interface cables be used when connecting to this equipment. Any
changes or modifications not expressly approved by Viavi could void the user's
authority to operate the equipment.
The product is approved in accordance to R&TTE directive concerning transmitter
module marked by CE0678. It is manufactured by MITSUMI and it is an OEM product.
WEEE and Battery Directive Compliance
Viavi has established processes in compliance with the Waste Electrical and Electronic
Equipment (WEEE) Directive, 2002/96/EC, and the Battery Directive, 2006/66/EC.
This product, and the batteries used to power the product, should not be disposed of
as unsorted municipal waste and should be collected separately and disposed of

Data Communications and Diphase Testing Manual
Page iv 21148872, Rev. 002 January 2016
according to your national regulations. In the European Union, all equipment and
batteries purchased from Viavi after 2005-08-13 can be returned for disposal at the end
of its useful life. Viavi will ensure that all waste equipment and batteries returned are
reused, recycled, or disposed of in an environmentally friendly manner, and in compli-
ance with all applicable national and international waste legislation.
It is the responsibility of the equipment owner to return equipment and batteries to Viavi
for appropriate disposal. If the equipment or battery was imported by a reseller whose
name or logo is marked on the equipment or battery, then the owner should return the
equipment or battery directly to the reseller.
Instructions for returning waste equipment and batteries to Viavi can be found in the
Environmental section of Viavi’s web site at www.viavisolutions.com. If you have ques-
tions concerning disposal of your equipment or batteries, contact Viavi’s WEEE
Program Management team.

Data Communications and Diphase Testing Manual
January 2016 21148872, Rev. 002 Page v
Contents
About this Manualix
Purpose and scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .x
Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .x
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .x
Data Communications and Diphase Testing Manual . . . . . . . . . . . . . . . . . . . . . . . . . xi
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii
Technical assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Safety and compliance information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Chapter 1 Basic Testing 1
Navigating the Main screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Datacom buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Signal mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Synth Frequency (kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
LED panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Data and Control LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Diphase LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Actions panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Identifying test requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Equipment emulation mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Signal mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Timing mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Data rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Flow control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Pattern. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
RX input termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Timing sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Step 1: Configuring the test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Step 2: Performing a self test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 3: Connecting the instrument to the circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Step 4: Starting the test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

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Data Communications and Diphase Testing Manual
Page vi 21148872, Rev. 002 January 2016
Step 5: Viewing test results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Setting the result group and category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Additional test result information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 2 Data Communications Testing 11
Data communications testing features and capabilities . . . . . . . . . . . . . . . . . . . . . .12
Specifying interface settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Specifying the timing settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Specifying data settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Specifying signal and flow control settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Selecting a BER pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Defining user programmable patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Performing BER analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Measuring round trip delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Troubleshooting inverted clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Chapter 3 Diphase Testing 23
About Diphase testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Manchester (Diphase) encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Conditioned Diphase encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Specifying the clock frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Specifying data settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Selecting a BER pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Performing BER analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Measuring round trip delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Chapter 4 Test Results 29
About test results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Summary Status results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
LED results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Data LED results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Control LED results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Signal results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
BERT results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Data results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
G.821 results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Interpreting available and unavailable seconds. . . . . . . . . . . . . . . . . . . . . . . . . . 37
Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Histograms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Event Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Contents
Data Communications and Diphase Testing Manual
January 2016 21148872, Rev. 002 Page vii
Chapter 5 Troubleshooting 41
About troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Before testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
The test application I need is not available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Can I hot-swap PIMs? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
How can I determine whether I need to swap a PIM?. . . . . . . . . . . . . . . . . . . . . .42
Performing tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Some settings are disabled when I configure my tests. . . . . . . . . . . . . . . . . . . . .43
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
User interface is not launching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Which MSAM or application module is selected?. . . . . . . . . . . . . . . . . . . . . . . . . .43
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
No receive clock is detected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
The Rx Clock Invert LED is illuminated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
The unit is not obtaining pattern synchronization. . . . . . . . . . . . . . . . . . . . . . . . 44
Test results are inconsistent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Upgrades and options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
How do I upgrade my instrument? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
How do I install test options? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Do software and test options move with the MSAM? . . . . . . . . . . . . . . . . . . . . .45
Glossary 47
Index 53

Contents
Data Communications and Diphase Testing Manual
Page viii 21148872, Rev. 002 January 2016

Data Communications and Diphase Testing Manual
January 2016 21148872, Rev. 002 Page ix
About this Manual
This prefix explains how to use this manual. Topics discussed include the following:
•“Purpose and scope” on page x
•“Assumptions” on page x
•“Terminology” on page x
•“Data Communications and Diphase Testing Manual” on page xi
•“Conventions” on page xii
•“Technical assistance” on page xiv
•“Safety and compliance information” on page xiv

About this Manual
Purpose and scope
Data Communications and Diphase Testing Manual
Page x 21148872, Rev. 002 January 2016
Purpose and scope
The purpose of this manual is to help you successfully use the features and capabilities
of the Multiple Services Application Module (MSAM) with a HS Datacom or Diphase
Physical Interface Module (PIM).
This manual includes task-based instructions that describe how to configure, use, and
troubleshoot the test instrument during data communications or diphase testing.
Before testing for the first time, be certain to read the Getting Started manual that
shipped with your instrument. Detailed explanations are provided about the instrument
and user interface. Detailed instructions for performing basic tasks using the instrument
(such as storing reports) are also provided. Finally, specifications for each of the PIMs
supported by the MSAM are provided there.
Assumptions
This manual is intended for novice, intermediate, and experienced users who want to
use the test instrument effectively and efficiently. We are assuming that you have basic
computer experience and are familiar with basic telecommunication concepts, termi-
nology, and safety.
Terminology
The T-BERD 6000A is branded as the MTS-6000A in Europe, and it is interchangeably
referred to as the T-BERD 6000A, MTS 6000A, MTS6000A and Media Test Set 6000A
throughout supporting documentation.
The T-BERD 8000 is branded as the MTS-8000 in Europe, and it is interchangeably
referred to as the T-BERD 8000, MTS 8000, MTS-8000, MTS8000 and Media Test Set
8000 throughout supporting documentation.
The following terms have a specific meaning when they are used in this manual:
• T-BERD / MTS 6000A — The T-BERD / MTS 6000A family of products, typically
a combination of a base unit, an application module, and one or more physical
interface modules (PIMs).
• T-BERD ⁄MTS 8000 — The T-BERD ⁄MTS 8000 family of products. When used
with an MSAM, typically a combination of a base unit, one or more battery
modules, one or more dual module carriers (DMCs), MSAMs, and PIMs.
• Base unit — The unit which connects to the application module or DMC and
power adapter, providing the user interface and a variety of connectivity and work
flow tools. If optioned to do so, the base unit also allows you to measure emitted
power, received power, and optical link loss on fiber optic networks.
• DMC (Dual Module Carrier) — The DMC can be connected to an 8000 base unit,
and provides two slots for testing using up to two MSAMs. Up to two Data
Communications or Diphase PIMs, or 4 PIMs designed for other test interfaces
(for example, SFP or XFP PIMs) can then be inserted into the MSAMs for testing.

About this Manual
Data Communications and Diphase Testing Manual
Data Communications and Diphase Testing Manual
January 2016 21148872, Rev. 002 Page xi
• MSAM (Multiple Services Application Module (MSAM)) — Referred to generi-
cally as “the instrument”. The MSAM provides testing functionality for the base
unit.; the PIMs inserted into the MSAM provide the physical connectors.
• PIM — The physical interface module (inserted into the MSAM) used to test a
variety of services. PIMs provide the connectors required to connect to a circuit
for testing.
Data Communications and Diphase Testing Manual
This is the Data Communications and Diphase testing manual for the MSAM. The
manual is application-oriented, and provides instructions intended to help you use the
instrument to verify network connectivity and performance for a variety of data commu-
nication interfaces. It also provides detailed test result descriptions and troubleshooting
topics.
Use this manual in conjunction with the following manuals:
•6000A Base Unit User Manual. This manual provides an overview, specifications,
and instructions for proper operation of the 6000A base unit.
•8000 Base Unit User Manual. This manual provides an overview, specifications,
and instructions for proper operation of the 8000 base unit.
•Dual Module Carrier, Transport Module, and MSAM Getting Started Manual. This
manual provides an overview of the connectors provided on the hardware compo-
nents, instructions for connecting to the circuit you are testing, and specifications
for the hardware components.
•Remote Control Reference Manual. This manual provides the remote control
commands used when developing scripts to automate your testing. This manual
is provided electronically on the USB stick or CD that shipped with your instru-
ment.
NOTE:
Many applications also require you to purchase and install certain testing
options; others require specific cables to connect to specific interfaces for
testing.

About this Manual
Conventions
Data Communications and Diphase Testing Manual
Page xii 21148872, Rev. 002 January 2016
Conventions
This guide uses typographical and symbols conventions as described in the following
tables.
Table 1 Text formatting and other typographical conventions
Item(s) Example(s)
Buttons, keys, or switches that
you press or flip on a physical
device.
Press the On button.
– Press the Enter key.
– Flip the Power switch to the on position.
Buttons, links, menus, menu
options, tabs, or fields on a PC-
based or Web-based user inter-
face that you click, select, or
type information into.
Click Start.
– Click File > Properties.
– Click the Properties tab.
– Type the name of the probe in the Probe
Name field.
Directory names, file names,
and code and output messages
that appear in a command line
interface or in some graphical
user interfaces (GUIs).
$NANGT_DATA_DIR/results (directory)
–test_products/users/
defaultUser.xml (file name)
–All results okay. (output message)
Text you must type exactly as
shown into a command line
interface, text file, or a GUI text
field.
– Restart the applications on the server using
the following command:
$BASEDIR/startup/npiu_init
restart
Type: a:\set.exe in the dialog box.
References to guides, books,
and other publications appear in
this typeface.
Refer to Newton’s Telecom Dictionary.
Command line option separa-
tors.
platform [a|b|e]
Optional arguments (text vari-
ables in code).
login [platform name]
Required arguments (text vari-
ables in code).
<password>

About this Manual
Conventions
Data Communications and Diphase Testing Manual
January 2016 21148872, Rev. 002 Page xiii
Table 2 Symbol conventions
This symbol indicates a note that includes important supplemental infor-
mation or tips related to the main text.
This symbol represents a general hazard. It may be associated with either a
DANGER, WARNING, CAUTION, or ALERT message. See Table 3 for
more information.
This symbol represents an alert. It indicates that there is an action that must
be performed in order to protect equipment and data or to avoid software
damage and service interruption.
This symbol represents hazardous voltages. It may be associated with
either a DANGER, WARNING, CAUTION, or ALERT message. See Table 3
for more information.
This symbol represents a risk of explosion. It may be associated with either
a DANGER, WARNING, CAUTION or ALERT message. See Table 3 for
more information.
This symbol represents a risk of a hot surface. It may be associated with
either a DANGER, WARNING, CAUTION, or ALERT message. See Table 3
for more information.
This symbol represents a risk associated with fiber optic lasers. It may be
associated with either a DANGER, WARNING, CAUTION or ALERT mes-
sage. See Table 3 for more information.
This symbol, located on the equipment, battery, or the packaging indicates
that the equipment or battery must not be disposed of in a land-fill site or
as municipal waste, and should be disposed of according to your national
regulations.
Table 3 Safety definitions
Term Definition
DANGER Indicates a potentially hazardous situation that, if not avoided, will
result in death or serious injury. It may be associated with either a
general hazard, high voltage, or other symbol. See Table 2 for
more information.
WARNING Indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury. It may be associated with
either a general hazard, high voltage, or other symbol. See Table 2
for more information.

About this Manual
Technical assistance
Data Communications and Diphase Testing Manual
Page xiv 21148872, Rev. 002 January 2016
Technical assistance
If you require technical assistance, call 1-844-GO-VIAVI. For the latest TAC informa-
tion, go to http://www.viavisolutions.com/en/services-and-support/support/technical-
assistance.
Safety and compliance information
Safety and compliance information for the instrument are provided in printed form and
ship with your instrument.
CAUTION Indicates a potentially hazardous situation that, if not avoided,
could result in minor or moderate injury and/or damage to equip-
ment.
It may be associated with either a general hazard, high voltage, or
risk of explosion symbol. See Table 2 for more information.
When applied to software actions, indicates a situation that, if not
avoided, could result in loss of data or a disruption of software
operation.
ALERT Indicates that there is an action that must be performed in order to
protect equipment and data or to avoid software damage and ser-
vice interruption.
Table 3 Safety definitions (Continued)
Term Definition

Data Communications and Diphase Testing Manual
January 2016 21148872, Rev. 002 Page 1
1
Chapter 1 Basic Testing
This chapter provides basic information about Data Communications and Diphase
testing using the MSAM. Topics discussed in this chapter include the following:
•“Navigating the Main screen” on page 2
•“Identifying test requirements” on page 4
•“Step 1: Configuring the test” on page 6
•“Step 2: Performing a self test” on page 7
•“Step 3: Connecting the instrument to the circuit” on page 8
•“Step 4: Starting the test” on page 8
•“Step 5: Viewing test results” on page 9

Chapter 1 Basic Testing
Navigating the Main screen
Data Communications and Diphase Testing Manual
Page 2 21148872, Rev. 002 January 2016
Navigating the Main screen
When testing using an HS Datacom or Diphase PIM, the Main screen on the instrument
provides buttons and LEDs that help you quickly configure your test and determine
whether data is transmitted and received properly (see Figure 1).
Descriptions of the remaining elements on the Main screen are provided in the Getting
Started manual that shipped with your instrument.
Datacom buttons
In addition to the standard elements, Datacom buttons are available that allow you to
quickly specify key settings. When testing using a Diphase PIM, the Synth Frequency
(kHz) and Pattern are the only buttons provided.
Interface
Use the Interface button to select the interface that you intend to test.
Signal mode
Use the Signal mode button to indicate whether the circuit under test uses balanced
or unbalanced amplifiers when testing from EIA-530/EIA-530A, RS-449/V.36, or MIL-
188-114 interfaces. This button does not appear when other interfaces supporting only
one amplifier configuration are selected (for example, X.21).
Figure 1 Main screen for HS Datacom test application
Datacom
buttons
LED
panel
Actions
panel

Chapter 1 Basic Testing
Navigating the Main screen
Data Communications and Diphase Testing Manual
January 2016 21148872, Rev. 002 Page 3
Equipment
Use the Equipment button to indicate whether the instrument will emulate a DTE or
DCE.
Synth Frequency (kHz)
Use the Synth Frequency (kHz) button to specify the synthesizer frequency for the
instrument’s internal clock during testing.
Pattern
Use the Pattern button to select the pattern to transmit and analyze during testing.
LED panel
The Summary LEDs in the panel to the left of the Results Windows indicate whether a
transmit and receive clock are present, the receive clock is inverted, received data has
been lost, and pattern synchronization has been achieved. A LED also indicates
whether the detected BER pattern has been inverted.
Data and Control LEDs
In addition to the Summary LEDs, Data LEDs provide information on the state of the
data and clock signal lead circuits between the instrument and a DTE or DCE device.
Control LEDs indicate whether each signal lead circuit is on or off.
Table 4 lists each signal lead circuit, the direction of the signal (to or from the DCE), the
ITU-T designation, and the acronym used to represent the circuit on the LED panel.
Table 4 Datacom signal lead circuits and direction
Circuit Direction ITU-T1
MIL-188c
RS-232/V.24
EIA-530/EIA-
530A
MIL-188-114
RS-449/V.36 V.35
(X.21)2
Receive Data From DCE 104 RD RD RD (R)
Transmit Data To DCE 103 TD SD SD (T)
Receiver Signal
Element Timing
From DCE 115 RT RT SCR (S)
Transmitter Signal
Element Timing
From DCE 114 ST ST SCT
Transmitter Signal
Element Timing
To DCE 113 TT TT SCTE
(X)
Clear To Send From DCE 106 CTS CS CTS (I)
Request To Send To DCE 105 RTS RS RTS (C)

Chapter 1 Basic Testing
Identifying test requirements
Data Communications and Diphase Testing Manual
Page 4 21148872, Rev. 002 January 2016
You can collapse and expand an LED panel by tapping the panel name (for example,
Data Rx).
Diphase LEDs
When testing using a Diphase PIM, Summary LEDs indicate whether a transmit and
receive clock are present and pattern synchronization has been achieved. A LED also
indicates whether the detected BER pattern has been inverted.
Actions panel
The Actions Panel appears under the LED display, and provides tabs with the buttons
required to perform your test. For example, buttons appear that allow you perform a self
loop to verify that the instrument is working properly, manipulate signal leads, or insert
errors.
Some buttons vary depending on the interface you are testing. For example, if the
instrument is configured as a RS-232 DCE, buttons are provided that allow you to
control the CTS, DSR, RLSD, RI, and TM leads. If you are testing a V.35 interface, a
button is provided for the CI lead instead of the RI lead. When testing using a Diphase
PIM, the signal lead actions do not appear because they are not needed for your test.
Identifying test requirements
Before testing, you need to identify the test requirements that you will specify as param-
eters when you configure your test.
Data Set (DCE) Ready From DCE 107 DSR DM DSR
Data Terminal (DTE)
Ready
To DCE 108.2 DTR TR DTR
Receiver Line
Signal Detect
From DCE 109 RLSD RR RLSD
Ring Indicator From DCE 125 RI IC CI
Remote Loopback To DCE 140 RL RL RL
Local Loopback To DCE 141 LL LL LL
Test Mode From DCE 142 TM TM TM
1. Formerly the CCITT (International Telegraph and Telephone Consultative Committee)
2. Some V.35 signal lead circuits are not valid for the X.21 interface. X.21 circuits are shown in parentheses.
Table 4 Datacom signal lead circuits and direction (Continued)
Circuit Direction ITU-T1
MIL-188c
RS-232/V.24
EIA-530/EIA-
530A
MIL-188-114
RS-449/V.36 V.35
(X.21)2