JDS Uniphase IP Video Test Option HST-3000 User manual

HST-3000
E1 Testing
User’s Guide

Communications Test and Measurement Solutions
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HST-3000
E1 Testing
User’s Guide

ii HST-3000 E1 Testing User’s Guide
Notice Every effort was made to ensure that the information in this
document was accurate at the time of printing. However, infor-
mation is subject to change without notice, and JDSU
reserves the right to provide an addendum to this document
with information not available at the time that this document
was created.
Copyright © Copyright 2014 JDS Uniphase Corporation. All rights
reserved. JDSU and the logo are trademarks of
JDS Uniphase Corporation (“JDS Uniphase”). All other trade-
marks and registered trademarks are the property of their
respective owners. No part of this guide may be reproduced
or transmitted electronically or otherwise without written per-
mission of the publisher.
Copyright release Reproduction and distribution of this guide is authorized for
Government purposes only.
Trademarks JDS Uniphase, JDSU, HST-3000, and HST-3000C are trade-
marks or registered trademarks of JDS Uniphase Corporation
in the United States and/or other countries.
Microsoft, Windows, Windows NT, Excel, HyperTerminal, and
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Specifications, terms, and conditions are subject to change
without notice. All trademarks and registered trademarks are
the property of their respective companies.
Ordering
information
This guide is a product of JDSU's Technical Information
Development Department, issued as part of the HST-3000.
The catalog number for a printed user’s guide is ML-057001.
The catalog number for a CD-ROM containing all HST-3000
user documentation is ML-060301.

HST-3000 E1 Testing User’s Guide iii
Federal
Communications
Commission (FCC)
Notice
This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential instal-
lation. 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. However, there is no guarantee that interfer-
ence will not occur in a particular installation.
This device complies with Part 15 of the FCC Rules. Opera-
tion 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 B
digital device JDSU requires that quality interface cables be
used when connecting to this equipment. Any changes or
modifications not expressly approved by JDSU could void the
user's authority to operate the equipment.
Industry Canada
Requirements
This Class B digital apparatus complies with Canadian
ICES-003.
Cet appareil numérique de la classe B est conforme à la
norme NMB-003 du Canada.

iv HST-3000 E1 Testing User’s Guide
WEEE and Battery
Directive
Compliance
JDSU 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 according to
your national regulations. In the European Union, all equip-
ment and batteries purchased from JDSU after 2005-08-13
can be returned for disposal at the end of its useful life. JDSU
will ensure that all waste equipment and batteries returned are
reused, recycled, or disposed of in an environmentally friendly
manner, and in compliance with all applicable national and
international waste legislation.
It is the responsibility of the equipment owner to return equip-
ment and batteries to JDSU 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
JDSU can be found in the Environmental section of JDSU’s
web site at www.jdsu.com. If you have questions concerning
disposal of your equipment or batteries, contact JDSU’s
WEEE Program Management team at
[email protected].

HST-3000 E1 Testing User’s Guide v
Contents
About This Guide xi
Purpose and scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
HST-3000 E1 testing user’s guide . . . . . . . . . . . . . . . . . xiii
HST-3000 base unit user’s guide . . . . . . . . . . . . . . . . . . xiii
Safety and compliance information . . . . . . . . . . . . . . . . xiii
Technical assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Chapter 1 Getting started 1
Overview and options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
E1 connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
E1 interface cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Launching an application . . . . . . . . . . . . . . . . . . . . . . . . . 5
Accessing the test configuration menus . . . . . . . . . . . . 7
Instrument settings and user preferences . . . . . . . . . . . 9

Contents
vi HST-3000 E1 Testing User’s Guide
Chapter 2 E1 testing 11
About testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Test modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Status LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Monitoring a channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Measuring timing slips. . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Terminate testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Pulse shape analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Drop and insert testing . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Line loopback testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Viewing test results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Chapter 3 ISDN PRA testing 43
About ISDN PRA testing . . . . . . . . . . . . . . . . . . . . . . . . . 44
Status LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
About PRA interfaces and the HST emulation modes . 47
U2 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
TE-U2/G.704 simulation mode. . . . . . . . . . . . . . . . 47
LT-U2/G.704 simulation mode . . . . . . . . . . . . . . . . 47
U2/G.704 Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . 47
S2/T2interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
TE-S2/T2simulation mode . . . . . . . . . . . . . . . . . . . 48
NT-S2/T2simulation mode . . . . . . . . . . . . . . . . . . . 48
S2/T2 Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
PMP Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
DASS2 modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
PBX-U2 emulation . . . . . . . . . . . . . . . . . . . . . . . . . 48
ET-U2 emulation . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Headset connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Selecting a test function . . . . . . . . . . . . . . . . . . . . . . . . . 50
Specifying test settings . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Specifying ISDN settings . . . . . . . . . . . . . . . . . . . . . . . 52
Specifying E1 settings . . . . . . . . . . . . . . . . . . . . . . . . . 54

Contents
HST-3000 E1 Testing User’s Guide vii
Specifying call settings . . . . . . . . . . . . . . . . . . . . . . . . 55
Specifying BERT settings . . . . . . . . . . . . . . . . . . . . . . 58
Specifying Supplementary Services settings . . . . . . . 60
Specifying UUS/IE settings . . . . . . . . . . . . . . . . . . . . . 62
Specifying Tracer settings . . . . . . . . . . . . . . . . . . . . . . 64
Managing test profiles . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Storing test profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Loading a profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Overwriting a profile . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Deleting a profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Connecting to the line. . . . . . . . . . . . . . . . . . . . . . . . . . . 68
PRA Simulation connections. . . . . . . . . . . . . . . . . . . . 68
S2/T2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
LT-S2/T2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
TE-U2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
LT-U2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
DASS2 PBX-U2 . . . . . . . . . . . . . . . . . . . . . . . . . . 71
ET-U2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
PRA Monitor connections . . . . . . . . . . . . . . . . . . . . . . 72
S2/T2Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
U2/G.704 Monitor . . . . . . . . . . . . . . . . . . . . . . . . . 73
PMP Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Emulating an ISDN phone. . . . . . . . . . . . . . . . . . . . . . . . 75
Placing calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Running the 30 call macro . . . . . . . . . . . . . . . . . . . . . 78
Receiving and disconnecting a call . . . . . . . . . . . . . . . 78
Accepting a call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Rejecting a call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Ignoring a call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Disconnecting a call . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Viewing all active calls . . . . . . . . . . . . . . . . . . . . . . . . 79
Viewing the call status for all channels . . . . . . . . . . . . 80
Viewing layer 2 status . . . . . . . . . . . . . . . . . . . . . . . . . 80
Viewing physical layer statistics . . . . . . . . . . . . . . . . . 80
Viewing LED statistics. . . . . . . . . . . . . . . . . . . . . . . . . 81
Running a BER test. . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Transmitting DTMF tones . . . . . . . . . . . . . . . . . . . . . . 82

Contents
viii HST-3000 E1 Testing User’s Guide
Managing speed dial numbers . . . . . . . . . . . . . . . . . . . 83
Adding or editing speed dial entries. . . . . . . . . . . . 83
Deleting a speed dial entry . . . . . . . . . . . . . . . . . . 84
Physical layer BERT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Running the BERT macro . . . . . . . . . . . . . . . . . . . . . . . . 87
Performing a capabilities services test . . . . . . . . . . . . . 88
Performing a supplementary services test . . . . . . . . . . 90
Performing a B channel test . . . . . . . . . . . . . . . . . . . . . . 92
Tracing D channel messages . . . . . . . . . . . . . . . . . . . . . 95
Capturing messages . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Navigating decode messages . . . . . . . . . . . . . . . . . . . 97
Retrieving saved tracer messages. . . . . . . . . . . . . . . . 97
Clearing the message buffer . . . . . . . . . . . . . . . . . . . . 98
Automatically responding to calls . . . . . . . . . . . . . . . . . 99
Monitoring the D channel. . . . . . . . . . . . . . . . . . . . . . . . 100
Running a HIZBERT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Monitoring all of the channels. . . . . . . . . . . . . . . . . . . . 102
Chapter 4 Troubleshooting 105
Interpreting D channel decode messages . . . . . . . . . . 106
LAPD messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
LAPD Unnumbered frame messages . . . . . . . . . . . . 109
LAPD Supervisory frame messages . . . . . . . . . . . . . 111
Q.931 messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Q.931 decodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Cause Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Resolving problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Appendix A E1 BERT and Pulse Shape Test Results 119
About test results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Summary results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
LED results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Signal results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Interface results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Contents
HST-3000 E1 Testing User’s Guide ix
Frame Data results . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Timeslot results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
BERT results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Pulse shape results. . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Performance results . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
G.821 results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
G.826 ISM results . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
G.826 OOS results . . . . . . . . . . . . . . . . . . . . . . . . . . 135
M.2100 ISM results . . . . . . . . . . . . . . . . . . . . . . . . . . 137
M.2100 OOS results . . . . . . . . . . . . . . . . . . . . . . . . . 140
Time results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Event Log results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Saving and printing results . . . . . . . . . . . . . . . . . . . . . 142
Appendix B PRA Test Results 143
About test results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Phone status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Layer 2 results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
BERT results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Interface results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
LED results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Services or Supplementary services test results. . . . 150
B channel test results . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Tracer results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Monitor Summary results . . . . . . . . . . . . . . . . . . . . . . . 151
E1 Physical results . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
2M View results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
ISDN View results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Saving and printing results . . . . . . . . . . . . . . . . . . . . . 153
Appendix C BERT Patterns, Defects, Anomalies, and
Messages 155
BERT patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Defects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Contents
xHST-3000 E1 Testing User’s Guide
Anomalies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Q.931 Cause Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Appendix D Call acceptance rules 163
1TR6 and TN-1R6 protocol. . . . . . . . . . . . . . . . . . . . . . . 164
Other protocols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Appendix E Protocol Services 167
Q.931, EDSS-1, Q.SIG, TPH1962, Telenokia, Televerket,
NTT, and CorNet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
VN3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
VN4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
VN6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
SwissNet-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
1TR6 and TN-1R6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
1TR67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Appendix F Specifications 175
Physical interface specifications . . . . . . . . . . . . . . . . . 176
E1 Transmitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
E1 Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
PRA pin-outs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
TE mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
NT mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Monitor mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
E1 circuit testing specifications . . . . . . . . . . . . . . . . . . 179
Pulse shape specifications . . . . . . . . . . . . . . . . . . . . . . 180
Glossary 183
Index 187

HST-3000 E1 Testing User’s Guide xi
About This Guide
Topics discussed in this chapter include the following:
–“Purpose and scope” on page xii
–“Assumptions” on page xii
–“Terminology” on page xii
–“HST-3000 E1 testing user’s guide” on page xiii
–“HST-3000 base unit user’s guide” on page xiii
–“Safety and compliance information” on page xiii
–“Technical assistance” on page xiv
–“Conventions” on page xv

About This Guide
Purpose and scope
xii HST-3000 E1 Testing User’s Guide
Purpose and scope
The purpose of this guide is to help you successfully use the
features and capabilities of the HST-3000 with the E1 testing
capability. This guide includes task-based instructions that
describe how to configure, use, and troubleshoot the
HST-3000 for E1 physical transmission testing.
This guide also includes information about the following
optional testing features:
– Pulse Shape Analysis
Assumptions
This guide is intended for novice, intermediate, and experi-
enced users who want to use the HST-3000 E1 testing option
efficiently and effectively. We assume that you have basic
computer experience and are familiar with basic telecommu-
nications safety, concepts, and terminology.
Terminology
The following terms have a specific meaning when they are
used in this guide:
–HST-3000 — Handheld Services Tester 3000. In this
user’s guide, “HST-3000” is used to refer to the HST-3000
family of products or to the combination of a base unit and
attached SIM. “HST” is also sometimes used to refer to
the base unit/SIM combination.
–SIM — Service Interface Module. Sometimes referred to
generically as the module. The SIM provides test applica-
tion functionality.
For definitions of other terms used in this guide, see “Glos-
sary” on page 183.

About This Guide
HST-3000 E1 testing user’s guide
HST-3000 E1 Testing User’s Guide xiii
HST-3000 E1 testing user’s guide
This guide is an application-oriented user’s guide containing
information about using the HST-3000 E1 testing option to
perform test operations on E1 and n x 64k lines. For informa-
tion about purchasing an optional test feature, contact your
JDSU sales representative.
This guide includes an overview of testing features, instruc-
tions for using the HST-3000 in monitor, terminate, drop and
insert, and line loopback test operations, and test result
descriptions. This guide also contains specifications and
contact information for JDSU’s Technical Assistance Center
(TAC). This user’s guide should be used in conjunction with
the HST-3000 Base Unit User’s Guide.
HST-3000 base unit user’s guide
The HST-3000 Base Unit User’s Guide contains overall infor-
mation relating to device and general functions such as using
the unit with a keyboard, peripheral support, battery charging,
saving and printing results, and managing files. This guide
also contains technical specifications for the base unit and a
description of JDSU’s warranty, services, and repair informa-
tion, including terms and conditions of the licensing agree-
ment.
Safety and compliance information
Safety instructions and compliance information are contained
in the booklet included with the HST-3000 user documenta-
tion CD-ROM jewel case. The safety/compliance booklet is
also available in electronic form on the HST-3000 user docu-
mentation CD-ROM.

About This Guide
Technical assistance
xiv HST-3000 E1 Testing User’s Guide
Technical assistance
If you need assistance or have questions related to the use of
this product, use the information in Ta ble 1 to contact JDSU’s
Technical Assistance Center (TAC) for customer support.
Before you contact JDSU for technical assistance, please
have the serial numbers for the service interface module
(SIM) and the base unit handy (see “Locating the serial
number” in the HST-3000 Base Unit User’s Guide).
During off-hours, you can request assistance by doing one of
the following: leave a voice message at the TAC for your
region; email the North American TAC ([email protected]);
submit your question using our online Technical Assistance
request form at www.jdsu.com.
Table 1 Technical assistance centers
Region Phone Number
Americas 1-866-ACTERNA
301-353-1550
(1-866-228-3762)
[email protected]
Europe, Africa, and
Mid-East
[phone]
(JDSU Germany)
[email protected]
Asia and the Pacific [phone] 
(Hong Kong)
[phone] 
(Beijing-China)

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Conventions
HST-3000 E1 Testing User’s Guide xv
Conventions
When applicable, this guide uses the typographical conven-
tions and symbols described in the following tables.
Table 2 Typographical conventions
Description Example
User interface actions appear
in this typeface.
On the Status bar, click
Start.Use the Direction char-
acter tag for this convention.
Buttons or switches that you
press on a unit appear in this
TYPEFACE.
Press the ONswitch.Use the
Switch character tag for this
convention.
Code and output messages
appear in this typeface.
All results okay
Text you must type exactly as
shown appears in this type-
face.
Type: a:\set.exe in the dia-
log box. the CodeDirection
character tag for this conven-
tion.
Variables appear in this type-
face.
Type the new hostname.Use
the Emphasis character tag
for this convention.
Book references appear in
this typeface.
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>

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Conventions
xvi HST-3000 E1 Testing User’s Guide
Table 4 Symbol conventions
Table 3 Keyboard and menu conventions
Description Example
A plus sign + indicates simul-
taneous keystrokes.
Press Ctrl+s
A comma indicates consecu-
tive key strokes.
Press Alt+f,s
A slanted bracket (>) indi-
cates choosing a submenu
from menu.
On the menu bar, click 
Start > Program Files.

This symbol represents a caution.

This symbol represents a risk of electrical shock.

This symbol represents a risk of explosion
This symbol represents a Note indicating related informa-
tion or tip.

This symbol, located on the equipment, battery, or packag-
ing indicates that the equipment or battery must not be dis-
posed of in a land-fill site or as municipal waste, and should
be disposed of according to your national regulations.

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Conventions
HST-3000 E1 Testing User’s Guide xvii
Table 5 Safety definitions
DANGER Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.

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Conventions
xviii HST-3000 E1 Testing User’s Guide