Viavi OneExpert DSL User manual

OneExpert DSL
User's Guide

OneExpert DSL User's Guide
22052280, Rev. 016 May 2020ii
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 2020 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”).
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.
and any use of such marks by VIAVI is under license.
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
This guide is a product of VIAVI Technical Publications Department, issued as part of the
product. You can obtain the manual through StrataSync. A printed quick card also ships with
the instrument and can be downloaded through StrataSync.
Terms and conditions
Specifications, terms, and conditions are subject to change without notice. The provision
of hardware, services, and/or software are subject to VIAVI standard terms and conditions,
available at www.viavisolutions.com/en/terms-and-conditions.
Open Source Disclaimer – IMPORTANT READ CAREFULLY

OneExpert DSL User's Guide
22052280, Rev. 016May 2020 iii
The OneExpert DSL includes 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.
Federal Communications Commission (FCC) Notice
This product was 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
environment. This product generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference
to radio communications. Operation of this product in a residential area is likely to cause
harmful interference, in which case you will be required to correct the interference at your own
expense.
The authority to operate this product is conditioned by the requirements that no modifications
be made to the equipment unless the changes or modifications are expressly approved by
VIAVI.
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.
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 VIAVI 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.
CAUTION:
– To comply with FCC RF exposure compliance requirements, a separation distance of at
least 20 cm must be maintained between the antenna of this device and all persons.
– This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.

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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.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils
radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (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 equipment complies with Industry Canada radiation exposure limits set forth for an
uncontrolled environment.
Cet équipement est conforme à l’exposition aux rayonnements Industry Canada limites établies
pour un environnement non contrôlé.
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.
CAUTION:
– This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
– Cet émetteur ne doit pas être co-localisées ou opérant en conjonction avec une autre
antenne ou émetteur.
EU WEEE and Battery Directives
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 according to
your national regulations.
VIAVI has established a take-back processes in compliance with the EU Waste Electrical and
Electronic Equipment (WEEE) Directive, 2012/19/EU, and the EU Battery Directive, 2006/66/EC.
Instructions for returning waste equipment and batteries to VIAVI can be found in the WEEE
section of VIAVI Standards and Policies web page.
If you have questions concerning disposal of your equipment or batteries, contact VIAVI WEEE
Program Management team at [e-mail].

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EU REACH
Article 33 of EU REACH regulation (EC) No 1907/2006 requires article suppliers to provide
information if a listed Substances of Very High Concern (SVHC) is present in an article above a
certain threshold.
For information on the presence of REACH SVHCs in VIAVI products, see the Hazardous
Substance Control section of VIAVI Standards and Policies web page.
EU CE Marking Directives (LV, EMC, RoHS, RE)
This product conforms with all applicable CE marking directives. Please see EU Declaration of
Conformity for details.
Compliance with 2014/53/EU Radio Equipment Directive (RED)
In accordance with Article 10.8(a) and 10.8(b) of the RED, the OneExpert CATV instruments for
sale in the EU operates in the 5-205 MHz frequency range at a maximum RF transmit power of
+15dBm.
Please contact us for more information:
VIAVI Solutions
Network Service Enablement
6001 America Center Drive
San Jose, CA, 95002
California Proposition 65
California Proposition 65, officially known as the Safe Drinking Water and Toxic Enforcement
Act of 1986, was enacted in November 1986 with the aim of protecting individuals in the
state of California and the state’s drinking water and environment from excessive exposure to
chemicals known to the state to cause cancer, birth defects or other reproductive harm.
For the VIAVI position statement on the use of Proposition 65 chemicals in VIAVI products, see
the Hazardous Substance Control section of the VIAVI Standards and Policies web page.

OneExpert DSL User's Guide
22052280, Rev. 016 May 2020vi

OneExpert DSL User's Guide
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Contents
About this Guide 17
Purpose and scope .................................................................................................17
Assumptions.............................................................................................................17
Technical assistance................................................................................................17
Safety and compliance information ................................................................. 18
Conventions ............................................................................................................ 18
Typographical conventions.......................................................................... 18
Keyboard and menu conventions.............................................................. 19
Symbol conventions ...................................................................................... 19
Safety definitions...........................................................................................20
Chapter 1 Introduction 21
About the OneExpert DSL ..................................................................................22
Available mainframes....................................................................................23
Available test modules ................................................................................23
Software options ..........................................................................................24
Additional resources .....................................................................................25
Features and capabilities ....................................................................................26
What ships with the OneExpert DSL? .............................................................28
Preparation for use ..............................................................................................28
Attaching or removing a test module..............................................................29
Removing a test module .............................................................................29
Attaching a test module .............................................................................30
Chapter 2 Quick Tour 31
Exploring the front panel....................................................................................32
Status indicators.............................................................................................33
Touchscreen display.......................................................................................34
Softkeys ............................................................................................................34
Arrow buttons.................................................................................................34
OK button ........................................................................................................34
System buttons...............................................................................................34

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Contents
Power button ..................................................................................................34
Exploring the bottom panel ............................................................................... 35
Charge Indicator ............................................................................................. 35
Exploring the right side panel............................................................................36
ONX-580 and ONX-580P connector panel..............................................36
ONX-580A connector panel.........................................................................36
USB connectors............................................................................................... 37
POTS connector .............................................................................................. 37
Network connectors...................................................................................... 37
RJ45 Wiring connector ................................................................................. 37
RJ11 Wiring connector ..................................................................................38
xDSL / G.fast connector................................................................................38
Rings..................................................................................................................38
Exploring the ONX-580 / ONX-580P top panel ...........................................39
Navigating the user interface ............................................................................ 41
Battery status and time ...............................................................................42
Expanding a menu.........................................................................................42
Selecting applications...................................................................................42
Running Applications .........................................................................43
Entering data.................................................................................................. 44
Creating or removing a shortcut............................................................... 44
Chapter 3 Utilities 45
Accessing system utilities................................................................................... 46
Displaying the System Settings menu .................................................... 46
Displaying the Tray menu............................................................................47
Setting up your instrument ............................................................................... 48
Configuring international settings........................................................... 48
Setting the date and time ...........................................................................49
Set the time ..........................................................................................49
Set the date...........................................................................................49
Specify the date format.....................................................................49
Specify the time format.....................................................................49
Change the time zone ........................................................................49
Control Time Synchronization ..........................................................49
Changing screen and power settings .......................................................50
Set the backlight..................................................................................50
Set the backlight timeout .................................................................50
Set the power off delay.....................................................................50
Setting the volume.........................................................................................51
Specifying the location for saved files......................................................51
Automatically saving DSL test results ......................................................51
Restoring factory defaults...........................................................................52
Powering off and rebooting the unit .......................................................52
Specifying user information........................................................................52
Customizing the user interface theme.....................................................53

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Contents
Enabling password protection....................................................................53
Establishing network connections....................................................................54
Enabling network connectivity..................................................................54
Establishing an Ethernet connection........................................................55
IPv4 Address Mode..............................................................................55
IPv6 Address Mode..............................................................................56
IPv4/IPv6 Dual Stack Address Modes ............................................ 57
Establishing a WiFi connection...................................................................58
Adding a WiFi network profile ...................................................................58
Connecting to a WiFi network....................................................................59
Establishing a Bluetooth connection....................................................... 60
Enabling Bluetooth connectivity .............................................................. 60
Connecting to a Bluetooth device............................................................ 60
Updating the instrument’s firmware .............................................................. 61
Download the firmware to a USB drive .................................................. 61
Updating the firmware from a USB drive .............................................. 61
Viewing hardware/software versions and options............................... 61
Installing software options .........................................................................62
Synchronizing to the StrataSync server ..........................................................63
To sync with StrataSync ...............................................................................63
Creating custom OneCheck icons .....................................................................65
OneCheck Profiles ............................................................................................... 66
Generating reports................................................................................................67
Saving a report ...............................................................................................67
Viewing a report............................................................................................ 68
Enforcing report field entry ...................................................................... 69
Capturing a screen shot............................................................................... 69
To capture a screen shot ................................................................... 69
To capture the tray menu or a popup menu ............................... 69
Viewing your work orders...................................................................................70
Editing work orders....................................................................................... 73
Saving a report to a work order.................................................................74
Work order notifications.............................................................................. 75
Workflow settings ......................................................................................... 75
Managing files........................................................................................................76
Accessing the file browser...........................................................................76
Selecting files or folders...............................................................................76
Opening files or folders................................................................................76
Copying and pasting files or folders......................................................... 77
Uploading files using FTP/HTTP................................................................. 77
Managing files with StrataSync ....................................................................... 77
Viewing the User’s Guide on your instrument ..............................................78
Remotely operating the instrument ................................................................78
Setting up the ONX for VNC.......................................................................79
Connecting to your ONX via VNC on your PC....................................... 80
Using a PC keyboard .................................................................................... 80

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VNC availability .............................................................................................. 81
Ending a remote operation session........................................................... 81
SmartAccess Anywhere – Remote Coaching ................................................. 81
Chapter 4 Copper Testing 83
About copper testing ......................................................................................... 84
Testing with an UltraFED far end device ...................................................... 86
About the UltraFED Control menu .................................................................. 86
Manually controlling the UltraFED ......................................................... 86
Measuring voltage .............................................................................................. 88
Measuring resistance and leakage .................................................................. 89
Measuring the distance to a short .................................................................. 90
Measuring resistive balance .............................................................................. 91
Measuring opens .................................................................................................. 91
Measuring current ............................................................................................... 94
Locating faults using the TDR ...........................................................................95
Running a OneCheck TDR test ..........................................................................97
Running a CrossTalk TDR test ........................................................................... 98
Measuring balance .............................................................................................. 99
Measuring PI (power influence), noise and balance ................................... 99
Detecting load coils ...........................................................................................100
Testing voice service and caller ID .................................................................100
Locating faults using RFL .................................................................................102
Single Pair RFL test .....................................................................................102
Separate Pair RFL test ................................................................................103
RFL K-Test ...................................................................................................... 103
Measuring spectral noise ..................................................................................104
Testing TIMS .........................................................................................................105
Measuring noise ..........................................................................................106
Measuring impulse noise .......................................................................... 107
Impulse noise capture ................................................................................108
Receiving wideband and narrowband tones .......................................109
Transmitting wideband and narrowband tones ..................................110
Simultaneous TX/RX tones ........................................................................110
Sweep loss testing.........................................................................................111
Wideband balance sweep testing ............................................................112
Near-End Crosstalk (NEXT) sweep testing ............................................112
Far-End Crosstalk (FEXT) testing .............................................................113
Return loss testing .......................................................................................113
Return loss sweep testing .........................................................................114
Impedance testing .......................................................................................114
Impedance sweep testing ..........................................................................115
Running a OneCheck copper test ....................................................................116
Editing profiles ..................................................................................................... 117
DVOM ....................................................................................................118
Narrowband / Voice Frequency ......................................................119

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Contents
Wideband Noise .................................................................................119
Loss Tones ............................................................................................119
Saving the profile and launching the test .............................................119
Copper Settings....................................................................................................120
Custom OPENS Cables ................................................................................120
Custom RFL and DTS Cables......................................................................120
Phonebook......................................................................................................121
Compensate Opens.......................................................................................121
Compensate Resistance.............................................................................. 122
Compensate RFL........................................................................................... 122
Copper Expert ...................................................................................................... 123
Shorts, Grounds, and Opens ..................................................................... 123
True Length ................................................................................................... 124
Pair Balance .................................................................................................. 125
Series Faults .................................................................................................. 125
Bonding and Grounding ................................................................................... 126
Service Analysis ................................................................................................... 126
OneCheck POTS Closeout ..................................................................................127
Test default configurations and thresholds ......................................... 128
OneCheck Coax ................................................................................................... 129
Routing the cables through the glove ..........................................................130
Chapter 5 xDSL / G.fast Testing 131
About xDSL and G.fast testing ........................................................................ 132
Supporting test modules and software options ................................ 132
Selecting the test mode ................................................................................... 133
Specifying test settings .................................................................................... 134
Loading a test profile ................................................................................. 134
Saving a test profile ................................................................................... 134
Deleting a test profile ................................................................................ 134
Specifying DSL / G.fast settings ..................................................................... 135
IPoE Data Mode ..................................................................................................140
PPPoE Data Mode ..............................................................................................140
Multi Interface Data Mode ...............................................................................141
PPPoA Data Mode ...............................................................................................141
IPoA Data Mode .................................................................................................. 142
Connecting to the line ....................................................................................... 143
Connecting to a single twisted pair ....................................................... 143
Connecting to bonded twisted pairs ..................................................... 143
Connecting to a single pair at the NID/demarc .................................. 143
Connecting to bonded pairs at the NID/demarc ................................144
Testing the physical layer .................................................................................144
Testing line quality .............................................................................................144
Terminating the loop (SELT) ............................................................................. 145
Running a OneCheck DSL test ......................................................................... 145

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Contents
Editing profiles .................................................................................................... 147
Testing the data layer ........................................................................................148
After running the test .......................................................................................148
Chapter 6 Data Testing 149
About Data Tests ................................................................................................150
Ping and Traceroute testing ............................................................................150
Testing FTP throughput ..................................................................................... 151
TrueSpeed testing ............................................................................................... 151
Managing TrueSpeed test profiles ......................................................... 153
Speed Check testing .......................................................................................... 154
Apache server setup ................................................................................... 154
Server scaling ................................................................................................157
Server over-provisioning ...........................................................................157
Speedtest by Ookla data testing ................................................................... 158
Before you begin.......................................................................................... 158
Server Settings ............................................................................................ 159
Running Speedtest .....................................................................................160
Latency Measurement .....................................................................160
Upload Measurement ......................................................................160
Download Measurement ................................................................160
Measurements Upload .....................................................................161
Broadcom Speed Service data testing .......................................................... 162
Before you begin.......................................................................................... 162
Managing Speed Service test profiles ................................................... 163
Server Settings ............................................................................................. 163
Running Broadcom Speed Service ..........................................................164
Average Latency Measurements .................................................. 165
Rate Measurements ......................................................................... 165
Video testing .......................................................................................................166
Specifying test settings .................................................................................... 167
Specifying Video settings ......................................................................... 167
Specifying stream settings .......................................................................169
Mapping channels .............................................................................................. 170
Connecting to the line ........................................................................................172
Analyzing video streams ...................................................................................172
Terminate mode ...........................................................................................172
QoS Expert .....................................................................................................173
VoIP Testing ...........................................................................................................173
Accessing the VoIP application ................................................................ 174
Specifying test settings ............................................................................ 174
Connecting to the line ................................................................................177
Placing and receiving calls .........................................................................177
Placing a call ........................................................................................177

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Contents
Receiving a call .................................................................................. 178
Answering calls automatically ....................................................... 178
Browsing the web .............................................................................................. 179
Accessing the web browser ...................................................................... 179
Navigating the browser ............................................................................ 179
Opening a web page .................................................................................. 179
Adding bookmarks .....................................................................................180
Exiting the browser ....................................................................................180
Chapter 7 Fiber Testing 181
About the optical tools ..................................................................................... 182
Inspecting fiber.................................................................................................... 182
Measuring optical power ..................................................................................184
About fiber testing ............................................................................................ 185
OneCheck Fiber ...................................................................................................186
Running a OneCheck Fiber test ...................................................................... 187
Editing profiles.....................................................................................................188
Fiber Inspection .................................................................................189
Optical Power Test ............................................................................189
OTDR Test ...........................................................................................190
Saving the profile and launching the test ...................................................190
Fiber Certification.................................................................................................191
SmartOTDR............................................................................................................ 193
Chapter 8 Ethernet Testing 195
About Ethernet testing .....................................................................................196
Specifying Ethernet settings ...........................................................................196
Loading a test profile ................................................................................. 197
Specifying Ethernet and data mode settings ..................................... 197
IPoE data mode ................................................................................. 197
PPPoE data mode .............................................................................198
Multi Interface data mode .............................................................198
Saving test profiles .....................................................................................199
Connecting to the line ......................................................................................200
Viewing results ...................................................................................................200
Running a OneCheck Ethernet test ...............................................................201
Editing profiles.................................................................................................... 202
Testing the data layer ....................................................................................... 203
Chapter 9 WiFi Testing 205
About the WiFi tests.......................................................................................... 206
To access the WiFi tests............................................................................. 206
Scanning for WiFi networks..............................................................................207
Running Receiver Diagnostics .........................................................................207
Verifying IP connectivity .................................................................................. 208

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Contents
Providing WiFi hotspot access ........................................................................ 208
WiFi Coverage Expert ....................................................................................... 209
WiFi Troubleshooting using WiFi Coverage Expert ...................................210
Audible Finders .....................................................................................................211
Site Assessment ...................................................................................................211
Managing WiFi Advisor Devices ..................................................................... 212
Registering and unregistering devices................................................... 212
To register WiFi Advisor devices .................................................... 212
To unregister WiFi Advisor devices ............................................... 212
Changing the power off delay ................................................................ 213
Updating the WiFi Advisor firmware...................................................... 213
Chapter 10 Wiring Tools 215
About the Wiring Tools ..................................................................................... 216
Wire Mapping ...................................................................................................... 216
Mapping ......................................................................................................... 216
Sending tones .............................................................................................. 218
Hub Flash .............................................................................................................. 218
Port discovery ...................................................................................................... 219
Ping Tool ................................................................................................................ 219
Chapter 11 In Home Testing 221
About SmartID tests ...........................................................................................222
Locating SmartIDs ...............................................................................................222
Coax Map test.......................................................................................................224
Whole-Home Check ............................................................................................227
About the Full Sweep Coax Test .................................................................... 230
Locating SmartIDs ............................................................................................. 230
Coax Check ...........................................................................................................232
About HPNA Testing ..........................................................................................235
Connecting to the line .......................................................................................236
Monitoring the HPNA network .......................................................................236
Testing the HPNA network ..............................................................................236
Chapter 12 Using the OneExpert with a Mobile Device 239
OneExpert DSL app............................................................................................ 240
Getting Started ........................................................................................... 240
Controlling the OneExpert from your Mobile Device............................... 240
Updating the iOS application software ........................................................242
Connecting to StrataSync from the VIAVI Mobile Tech App....................243
Mobile Tech Main Menu............................................................................ 244

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Contents
Chapter 13 Test Results 247
DSL/G.fast Results ............................................................................................. 248
Context Sensitive Help ............................................................................. 248
Summary ...................................................................................................... 249
Packets ...........................................................................................................252
Network .........................................................................................................253
Errors ...............................................................................................................254
Events .............................................................................................................255
DSL RTX (retransmission) ...........................................................................255
Signal...............................................................................................................255
Identity ...........................................................................................................256
DSL Graphs ....................................................................................................256
IP Data results .....................................................................................................257
Ping Results ...................................................................................................257
File Transfer results .................................................................................... 258
TrueSpeed results .............................................................................................. 258
VoIP results .......................................................................................................... 258
Summary ...................................................................................................... 258
QoS ................................................................................................................. 258
MOS ................................................................................................................259
Network results ............................................................................................259
Call Information results ............................................................................. 260
Video results ....................................................................................................... 260
Summary ....................................................................................................... 261
QoS results ....................................................................................................262
Loss results ....................................................................................................262
Packet statistics ...........................................................................................263
Stream Rates ................................................................................................263
Stream (TS) statistics .................................................................................263
PID results .................................................................................................... 264
HPNA results ........................................................................................................265
Node list ........................................................................................................265
Node details .................................................................................................265
Network Test ............................................................................................... 266
SmartID results ................................................................................................... 268
Test Summary ............................................................................................. 268
Detailed View .............................................................................................. 268
Network Map .............................................................................................. 268
Sweep Data .................................................................................................. 268
Copper results ..................................................................................................... 269
AC voltage .................................................................................................... 269
DC voltage ....................................................................................................270

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Contents
Resistance .....................................................................................................270
Distance to short ..........................................................................................271
Leakage ...........................................................................................................271
Opens/Capacitance .....................................................................................272
DC current .....................................................................................................272
Longitudinal balance ..................................................................................273
Load coil ......................................................................................................... 273
TDR .................................................................................................................274
RFL ...................................................................................................................274
Spectral ..........................................................................................................274
Noise ..............................................................................................................274
Impulse Noise ...............................................................................................274
RX and TX Tones ..........................................................................................274
WiFi Advisor results ...........................................................................................275
BSSID results ................................................................................................275
Channel results ............................................................................................275
RSSI view .............................................................................................275
Utilization graph ...............................................................................275
Noise graph ........................................................................................ 275
Channel Score .................................................................................... 275
Best Channels ....................................................................................276
Spectral results ............................................................................................276
Chapter 14 Appendix 277
Cleaning the instrument ....................................................................................278
Resolving problems.............................................................................................278
General testing ...................................................................................... 278
Copper testing .......................................................................................278
Copper testing....................................................................................278
Data testing.........................................................................................279
WiFi Advisor.......................................................................................................... 280
Getting Technical Assistance ............................................................................ 281
Additional Information....................................................................................... 281
Specifications........................................................................................................282

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About this Guide
Thank you for purchasing the OneExpert DSL. This prefix explains how to use this manual to
get you up and running with the instrument as soon as possible.
Purpose and scope
The purpose of this guide is to help you successfully use the OneExpert DSL features and
capabilities. Additionally, this guide provides a complete description of the VIAVI warranty,
services, and repair information.
Assumptions
This guide is intended for novice, intermediate, and experienced users who want to use the
OneExpert DSL effectively and efficiently. We are assuming that you have basic computer
and mouse/track ball experience and are familiar with basic telecommunication concepts and
terminology.
Technical assistance
If you require technical assistance, call 1-844-GO-VIAVI / 1.844.468.4284.
For the latest TAC information, visit
http://www.viavisolutions.com/en/services-and-support/support/technical-assistance

OneExpert DSL User's Guide
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Safety and compliance information
Safety information is contained in a separate guide and is provided in printed format with the
product.
For information about CE compliance, see the Declaration of Conformity. A copy of the
declaration is included in the shipping package.
Conventions
This guide uses typographical and symbols conventions as described in the following tables.
Description Example
User interface actions On the Status bar, press Start.
Buttons or switches that you press
on a unit Press the ON switch.
Code and output messages All results okay
Text you must type exactly as
shown Type: a:\set.exe in the dialog box
Variables Type the new hostname.
Book references Refer to Newton’s Telecom Dictionary
A vertical bar | means “or”: only
one option can appear in a single
command.
platform [a|b|e]
Square brackets [ ] indicate an
optional argument. login [platform name]
Slanted brackets < > group
required arguments. <password>
Typographical conventions
About the Guide

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About the Guide
Description Example
A plus sign + indicates
simultaneous keystrokes. Press Ctrl+s
A comma indicates consecutive key
strokes. Press Alt+f,s
A slanted bracket indicates
choosing a submenu from menu. On the menu bar, press Start > Program Files.
Symbol conventions
Keyboard and menu conventions
This symbol indicates a note that includes important supplemental information 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 "Safety definitions" on
page 20 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 "Safety definitions" on
page 20 for more information.
This symbol represents a risk of explosion. It may be associated with either a
DANGER, WARNING, CAUTION or ALERT message. See "Safety definitions" on
page 20 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 "Safety definitions" on
page 20 for more information.

OneExpert DSL User's Guide
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About the Guide
Symbol conventions (continued)
Safety definitions
This symbol represents a risk associated with fiber optic lasers. It may be
associated with either a DANGER, WARNING, CAUTION or ALERT message. See
the Safety Definitions below 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.
Term Description
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.
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.
CAUTION
Indicates a potentially hazardous situation that, if not
avoided, could result in minor or moderate injury and/
or damage to equipment.
It may be associated with either a general hazard,
high voltage, or risk of explosion symbol.
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 service interruption.