Agilent Technologies OmniBER 718 SDH User manual

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Agilent Technologies UK Limited
Telecommunications Networks Test Division
South Queensferry
West Lothian, Scotland EH30 9TG
Copyright Agilent
Technologies. 2000
All rights reserved.
Reproduction, adaption, or
translation without prior
written permission is
prohibited, except as
allowed under the
copyright laws.
Agilent Part No.
37718-90217
Printed in U.K. September
2000.
Warranty
The information contained
in this document is subject
to change without notice.
Agilent Technologies
makes no warranty of any
kind with regard to this
material, including, but
not limited to, the implied
warranties or
merchantabilityandfitness
for a particular purpose.
Agilent Technologies shall
not be liable for errors
contained herein or for
incidental or consequential
damages in connection
with the furnishing,
performance, or use of this
material.
WARNING
Warning Symbols Used on
the Product
The product is marked
with this symbol when the
user should refer to the
instruction manual in order
to protect the apparatus
against damage.
The product is marked
with this symbol to
indicate that hazardous
voltages are present
The product is marked
with this symbol to
indicate that a laser is
fitted. The user should
refer to the laser safety
information in the
Verification manual.
!
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2DRAFT
About This Book
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PDH/DSn/SDH/ATM/POS Operation
OmniBER 718 SDH User Guide
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4
This book tells you how to select the features that you want to use for your test.
The selections available are presented in the following groups:
• Transmit and receive interfaces
• Test features, for example, the addition of errors and alarms to the test signal
• Measurements including test timing
• Storing, logging and printing results with general printer information
• Using instrument and disk storage
• Using the “Other” features.
The selections available will depend on the options fitted to your instrument. The examples given in this
book cover all options and therefore may include selections which are not available on your instrument.
About This Book
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Contents
5
1 Introduction
Product Description 14
Conventions 15
Connecting to the Network 16
Cleaning Optical Connectors 19
Connecting Accessories 20
Front Panel Soft Recovery (Cold Start) 21
OmniBER 718 Option Guide 22
2 Setting the Interfaces
Setting PDH/DSn Transmit Interface
(option 012) 26
Setting DSn THRU Mode (option 012) 28
Setting SDH Transmit Interface 29
Setting Jitter Transmit Interface 34
Setting Wander Transmit Interface 36
Setting SDH THRU Mode 38
Using Smart Test 41
Setting PDH/DSn Receive Interface
(Option 012) 47
Setting SDH Receive Interface 49
Setting Jitter Receive Interface 50
Setting Extended Jitter Receive Interface 51
Setting Wander Receive Interface 52
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6
Contents
3 Selecting Test Features
Using Transmit Overhead Setup 54
Using Receive Overhead Monitor 56
Setting Overhead Trace Messages 58
Setting Overhead Labels 59
Generating Overhead Sequences 60
Using Receive Overhead Capture 62
Adding Frequency Offset to SDH Signal 64
Adding Frequency Offset to the PDH/DSn Signal 66
Setting up Signaling Bits 67
Setting Transmit Structured Payload/Test Signal 70
Setting Receive Structured Payload/Test Signal 72
Setting Transmit N x 64 kb/s/N x 56 kb/s
Structured Payload/Test Signal 73
Setting Receive N x 64 kb/s/N x 56 kb/s
Structured Payload/Test Signal 75
Inserting an External PDH/DSn Payload/Test Signal 76
Dropping an External Payload/Test Signal 79
Adding Errors & Alarms at the SDH Interface 82
Adding Errors & Alarms to a PDH signal 83
Using FEAC Codes 84
Setting PDH Spare Bits 86
Adding Pointer Adjustments 87
Using Pointer Graph Test Function 95
Stressing Optical Clock Recovery Circuits 97
Generating Automatic Protection Switch (APS) Messages 99
Inserting and Dropping the Data Communications Channel 104
Using DS1 LOOP Codes 105
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Contents
7
4 Making Measurements
Using Overhead BER Test Function 110
Test Timing 111
Performing a Trouble Scan 112
Making SDH Analysis Measurements 114
Making PDH Analysis Measurements 115
Measuring Frequency 116
Measuring Optical Power 117
Measuring Round Trip Delay 118
Monitoring Signaling Bits 120
Measuring Service Disruption Time 121
Performing an SDH Tributary Scan 124
Performing an SDH Alarm Scan 127
Performing a PDH/DSn Alarm Scan 128
Measuring Jitter 129
Measuring Extended Jitter 131
Measuring Wander 133
Measuring Jitter Tolerance 137
Measuring Jitter Transfer 142
Measuring Pointer Adjustment (Tributary) Jitter 148
5 ATM Operation
Setting up the Transmitter for ATM Payloads 154
Setting up the Convergence Sublayer 157
Setting Foreground Traffic 159
Setting Background Traffic 161
Setting Foreground and Background Distributions 162
Transmitting ATM Alarms 165
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8
Contents
Adding ATM Errors 167
Viewing ATM Results 169
Setting up the Receiver for ATM Payloads 170
Setting up the Receiver ATM signal 172
Policing ATM Traffic 174
Measuring ATM Delay Performance 176
Measuring ATM Alarms 179
ATM Service Disruption 180
6 Packet over SDH (POS)
POS Protocol Stack 184
Setting up the Transmitter for POS Payloads 185
Setting HDLC Framing, Scrambling and HDLC Frame Check
Sequence 187
Setting IP Packet (Datagram) Length and Inter-Packet Gap 190
Setting IP Header 192
Setting IP Addresses 193
Setting IP Payload 194
Adding POS Alarms 195
Adding POS Errors 196
Setting up the Receiver for POS Operation 197
Setting up the Receiver POS signal 199
Viewing POS Results 200
POS Applications 201
Channelized Testing 202
Fully Exercising POS Hardware Architecture 204
Throughput Testing 208
Continuity Test 212
POS Service Disruption 215
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Contents
9
HDLC Frame Stuffing 218
Jitter Tolerance Testing of POS Equipment 221
7 Tandem Connection Monitoring
Tandem Connection Monitoring (TCM) 226
Setting up the Transmitter for TCM Operation 227
Setting up TCM Access Point Identifier (APId) messages 228
Adding TCM errors 230
Adding TCM Alarms 231
Setting up the Receiver for TCM operation 232
Detecting TCM APId messages 233
Viewing TCM Errors and Alarms 235
Tandem Connection Terminating Equipment (TCTE) Testing 237
8 Storing, Logging and Printing
Saving Graphics Results to Instrument Store 244
Recalling Stored Graph Results 245
Viewing the Bar Graph Display 247
Viewing the Graphics Error and Alarm Summaries 249
Logging Graph Displays 251
Logging Results 253
Logging on Demand 261
Logging Jitter Tolerance Results 264
Logging Jitter Transfer Results 266
Logging Results to Parallel (Centronics) Printer 267
Logging Results to GP-IB Printer 268
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