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JDS Uniphase DSAM-1500, Руководство пользователя

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Table of Contents

x

DSAM Help User Guide

Rev. 001

Interleaver Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Impairments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Thermal (system) Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Phase Noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Coherent Interference  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Gain Compression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
I/Q Imbalance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Editing the Channel Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Setting the Sample Refresh Rate  . . . . . . . . . . . . . . . . . . . . . . . 178
Using Zoom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Interleaver Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Viewing Constellation Results . . . . . . . . . . . . . . . . . . . . . . . . . . 180

FDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

Running an FDR Scan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Understanding FDR Results  . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Measurement Information Area . . . . . . . . . . . . . . . . . . . . . . . 182
Resolution of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Vertical Distance Marker  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Progress Bar  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Using Zoom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Modifying FDR Configuration Settings. . . . . . . . . . . . . . . . . . . . 183
Viewing FDR Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Return QAM Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Using the Return QAM Generator . . . . . . . . . . . . . . . . . . . . . . . 185
Enable/Disable Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Changing the Mod Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Changing the Msym/s  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Understanding Return QAM Generator Results  . . . . . . . . . . . . 186

Measurement Information Area . . . . . . . . . . . . . . . . . . . . . . . 186
Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Symbol Rate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Transmit Status  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Accessing Other Modes from Return QAM Generator  . . . . . . . 187

QAM Ingress  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Using QAM Ingress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Understanding QAM Ingress Results. . . . . . . . . . . . . . . . . . . . . 188

Measurement Information Area . . . . . . . . . . . . . . . . . . . . . . . 189
Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Graph Information Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Marker Status Area  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

21128026 R001 DSAM Help User Guide.book  Page x  Thursday, February 5, 2009  2:02 PM

Содержание DSAM-1500

Страница 1: ...DSAM Product Family Series Complete DSAM Meter Functionality User Guide 21128026 R001 DSAM Help User Guide book Page i Thursday February 5 2009 2 02 PM ...

Страница 2: ...21128026 R001 DSAM Help User Guide book Page ii Thursday February 5 2009 2 02 PM ...

Страница 3: ...DSAM Product Family Series Complete DSAM Meter Functionality User Guide 21128026 R001 DSAM Help User Guide book Page iii Thursday February 5 2009 2 02 PM ...

Страница 4: ...21128026 R001 DSAM Help User Guide book Page iv Thursday February 5 2009 2 02 PM ...

Страница 5: ... trademarks of JDS Uniphase Corporation in the United States and or other countries Microsoft Windows Windows CE Windows NT and Microsoft Internet Explorer are either trademarks or registered trademarks of Microsoft Corporation in the United States and or other countries Specifications terms and conditions are subject to change without notice All trademarks and registered trademarks are the proper...

Страница 6: ...ational and international waste legislation It is the responsibility of the equipment owner to return the equipment to JDS Uniphase Corporation for appropriate disposal If the equip ment was imported by a reseller whose name or logo is marked on the equipment then the owner should return the equipment directly to the reseller Instructions for returning waste equipment to JDS Uniphase Corpora tion ...

Страница 7: ...s xxxiv Chapter 1 DSAM Product Family Series Overview 1 About DSAM Product Family Series 2 Meter Information 3 Mode Keys 4 Shift Keys 4 Softkey Shortcuts with Function Keys 5 Additional Functions 6 Chapter 2 DSAM Navigation 7 The Keypad 8 Softkeys 8 Exit Key 8 Enter Key 8 Arrow Keys 8 Mode Keys 8 21128026 R001 DSAM Help User Guide book Page iii Thursday February 5 2009 2 02 PM ...

Страница 8: ...pacity Battery to External Power Connection 15 Connecting the RF Cable 17 Installing and Maintaining the Standard Capacity Battery 17 Installing the Battery 17 Removing the Battery 17 Connecting the Power Components Standard Capacity Battery 17 Making Additional Connections 19 Chapter 4 Powering the DSAM 21 Powering the Meter 22 Choosing a Power Option 22 Charging the Battery 22 Understanding the ...

Страница 9: ... Configuring Connection Settings 42 Regional Preferences 43 Configuring Regional Preferences 43 Security 45 Setting Your PIN 45 Enabling Disabling Security Protection 47 Choose a Utility 47 Clear All Files 47 Restore Factory Defaults 47 Reset Meter 47 Clone 48 Sending Settings 48 Receiving Settings 50 Diagnostic 50 Testing the Keypad 50 Using Virtual DSAM 52 Configure Measure Tab 55 Sweep Settings...

Страница 10: ...84 Configuring Channels for Tilt 85 Configuring Access Channels 85 Configuring Telemetry Frequency 86 AutoTests 88 Configuring AutoTest for Cable Modem 88 Configuring AutoTest for Video Channels 89 Build New Plan 91 Building a New Channel Plan 91 Location Settings 95 Configuring Location Settings 95 Location Settings Parameters 96 Configure Access Tab 96 PC Connection 96 Configuring a PC Connectio...

Страница 11: ...ss 113 Chapter 7 AutoTest Mode 115 AutoTest Overview 116 Combo Test 116 Video Channels 116 Home Certification 116 Proof of Performance 116 Cable Modem 116 AutoTests Tab 116 Combo Test 116 Running a Combo Test 117 Understanding Combo Test Results 120 Viewing Combo Test Results 120 Video Summary View Default 120 DOCSIS Summary View 121 DOCSIS Status View 121 Video Channels Test 122 Running a Video C...

Страница 12: ...ble Modem Results 146 DOCSIS Status View 146 Chapter 8 Measure Mode Basic Tab 149 Basic Measurement Modes 150 Level 150 MiniScan 150 Full Scan 150 Tilt 150 Constellation 150 FDR 150 Return QAM Generator 150 QAM Ingress 150 Hum 150 DQI 151 Return Loopback 151 Level 151 Frequency Tuning 151 Channel Tuning 152 Running a Level Measurement 153 Understanding Level Results 154 Digital Channel Display 154...

Страница 13: ...Information Bar 163 Channel Status Area 163 Understanding Full Scan Results table 164 Measurement Information Area 165 Setting the Full Scan Speed 165 Enabling Channels for Full Scan 166 Enabling Audio Carrier Level for Full Scan 167 Viewing Full Scan Results 167 Tilt 168 Measuring Tilt 168 Understanding Tilt Results 170 Measurement Information Area 170 Tilt Graph Bar Widths 170 Graph Information ...

Страница 14: ...arker 183 Progress Bar 183 Status 183 Using Zoom 183 Modifying FDR Configuration Settings 183 Viewing FDR Results 184 Return QAM Generator 184 Using the Return QAM Generator 185 Enable Disable Transmit 185 Changing the Mod Type 185 Changing the Msym s 186 Understanding Return QAM Generator Results 186 Measurement Information Area 186 Graph 187 Symbol Rate 187 187 Transmit Status 187 Accessing Othe...

Страница 15: ...Viewing DQI Results 194 Return Loopback 194 Performing Return Loopback 195 Enabling Disabling Transmit 196 Setting the Transmit Level 196 Performing a Transmit Reference 196 Reading Measurement Graphs 196 Reading Bar Graphs 196 White 196 Gray 197 Black White Diagonal Hash Lines 197 Black 197 Reading Line Graphs 197 White 197 Black White Diagonal Hash Lines 197 Black 197 Saving Results 198 Saving R...

Страница 16: ...213 Selecting a Different DOCSIS Channel 214 Viewing Registration Results 214 Viewing Throughput Results 215 Throughput Graphs 215 Viewing Packet Loss Results 215 Packet Loss 216 Viewing Packet Loss Results with SNMP Community Strings 216 Upstream Modulation 217 Running Ping Results 217 Restoring Ping Test Defaults 220 Adding Ping IP Addresses 220 Modifying Ping IP Addresses 220 Deleting Ping IP A...

Страница 17: ... 232 Navigating the Cable Modem Information System Screen 233 VoIP 234 Configuring DSAM for VoIP Tests 235 Running a VoIP Test 235 Accepting a Call 240 Declining a Call 241 Selecting the Limit Sets 241 Selecting the Settings Softkey Options 242 Viewing VoIP MOS Results 242 VoIP MOS Definitions 243 Viewing VoIP Data Results 244 View Data Definitions 245 Chapter 10 Measure Mode Spectrum Tab 247 Spec...

Страница 18: ...eld View 259 Understanding Field View Results 264 Graph 265 Graph Information Bar 265 Marker Information Area 265 Viewing Field View Results 265 Ingress Resistance 266 Measuring Ingress Resistance 266 Understanding Ingress Resistance Results 268 Measurement Information Area 268 Graph 268 Graph Information Bar 268 Marker Information Area 268 Viewing Ingress Resistance Results 269 Chapter 11 Measure...

Страница 19: ...epless Sweep 285 Running a Sweepless Sweep 285 Understanding Sweepless Sweep Results 287 Measurement Information Area 287 Graph 287 Graph Information Bar 287 Marker Status Area 288 Viewing Sweepless Sweep Results 288 Saving and Loading Reference and Measurement Files 288 Reverse Alignment 290 Running a Reverse Alignment 290 Understanding the Reverse Alignment Graph 291 Measurement Information Area...

Страница 20: ...pair 309 Equipment Return Instructions 309 Warranty information 310 Global Services and Solutions 312 System Deployment and Field Engineering 313 Training 313 Instructor led Training 313 Public Courses JDS Uniphase Corporation Sites 313 On site Training Customer Site 313 Alternative Learning 314 Courseware Licensing Program and Train the Trainer 314 Computer Based Training CBT 314 Product Support ...

Страница 21: ...ter Rear View 15 Figure 10 High Capacity External Power Components 16 Figure 11 Standard Capacity External Power Components 18 Figure 12 DSAM Product Family Series Field Meter Bottom View 24 Figure 13 Configure General Tab Contrast Adjustment 29 Figure 14 Configure Adjust Contrast 30 Figure 15 Configure General Tab Sounds 31 Figure 16 Configure Adjust Sounds 31 Figure 17 Configure General Tab Batt...

Страница 22: ...l Tab Security 46 Figure 34 Configure Administer Security 46 Figure 35 Configure General Tab Choose a Utility 48 Figure 36 Configure Choose a Utility 48 Figure 37 Configure General Tab Clone 49 Figure 38 Configure Clone 49 Figure 39 Configure General Tab Diagnostic 51 Figure 40 Configure Choose a Diagnostic 51 Figure 41 Configure Keypad Test 52 Figure 42 Configure Bind Results 53 Figure 43 TPP DSA...

Страница 23: ... 78 Figure 68 Configure Downstream Plans 78 Figure 69 Configure Select a Channel to Edit 80 Figure 70 Configure Edit Channel 81 Figure 71 Configure Select MiniScan Channels 84 Figure 72 Configure Select Tilt Channels 85 Figure 73 Configure Select Access Channels 86 Figure 74 Configure Telemetry Settings 87 Figure 75 Configure Channel Plan Tab Autotests 88 Figure 76 Configure Select an Autotest 89 ...

Страница 24: ... Tab Synchronize 108 Figure 101 Access Synchronize 108 Figure 102 Access Browser Tab WFA Browser 109 Figure 103 Access WFA Browser 110 Figure 104 Access Browser Tab Local Browser 112 Figure 105 Access Local Browser 113 Figure 106 Access Browser Tab WFA Browser 114 Figure 107 Access DSAM Web Access Test 114 Figure 108 AutoTest AutoTests Tab 117 Figure 109 AutoTest Configure AutoTest 117 Figure 110 ...

Страница 25: ...est AutoTest in Progress 140 Figure 133 AutoTest Proof of Performance 141 Figure 134 AutoTest Video AutoTest Results 141 Figure 135 AutoTest DOCSIS in Progress 144 Figure 136 AutoTest DOCSIS AutoTest 145 Figure 137 AutoTest Video AutoTest Results 145 Figure 138 AutoTest Cable Modem Test DOCSIS Channel Status 147 Figure 139 Measure Mode Level Frequency 152 Figure 140 Measure Mode Level Channel 152 ...

Страница 26: ... FDR 181 Figure 166 Measure Mode FDR Locate 182 Figure 167 Configure FDR Settings 184 Figure 168 Measure Mode Basic Tab Return QAM Generator 185 Figure 169 Measure Mode Return QAM Generator 186 Figure 170 Measure Mode Basic Tab QAM Ingress 188 Figure 171 Measure Mode QAM Ingress 188 Figure 172 Measure Mode Basic Tab Hum 191 Figure 173 Measure Mode Hum Analysis 191 Figure 174 Measure Mode Basic Tab...

Страница 27: ...egmentation 223 Figure 200 Measure Mode DOCSIS Quality view 224 Figure 201 Measure Mode Service Tab Ethernet 226 Figure 202 Measure Bind Results 227 Figure 203 Measure Mode Ethernet 227 Figure 204 Measure Mode Packet Loss Test 228 Figure 205 Measure Mode Ethernet Ping Test 229 Figure 206 Measure Mode Ethernet Ping Test 230 Figure 207 Measure Mode Service Tab CM Diagnostics 233 Figure 208 Measure M...

Страница 28: ...e 232 Spectrum Downstream Spectrum 254 Figure 233 Spectrum Downstream Spectrum 255 Figure 234 Downstream Spectrum Center Frequency 256 Figure 235 Downstream Spectrum Dwell Time 257 Figure 236 Measure Mode Field View 259 Figure 237 Measure Mode Field View 260 Figure 238 Measure Mode Field View Telemetry 260 Figure 239 Measure Mode Broadcast Nodes 262 Figure 240 Measure Mode Node Info 262 Figure 241...

Страница 29: ...gure 254 Measure Mode Sweepless Sweep 285 Figure 255 Measure Mode Sweep Tab 286 Figure 256 Measure Mode Sweepless Sweep 286 Figure 257 Measure Mode Sweepless Sweep 287 Figure 258 Measure Mode Sweep Tab 290 Figure 259 Measure Mode Reverse Alignment 291 Figure 260 Measure Mode Reverse Alignment 292 21128026 R001 DSAM Help User Guide book Page xxv Thursday February 5 2009 2 02 PM ...

Страница 30: ...List of Figures xxvi DSAM Help User Guide Revision 001 21128026 R001 DSAM Help User Guide book Page xxvi Thursday February 5 2009 2 02 PM ...

Страница 31: ... Shift Key Shortcuts 6 Table 9 Title Bar Icons 10 Table 10 Battery Charge and Operation Values 22 Table 11 Standard Capacity Charge LED Indications 23 Table 12 High Capacity Charge LED Indications 25 Table 13 Sound Parameters 32 Table 14 Battery Conservation Parameters 33 Table 15 About Me Parameters 35 Table 16 Date and Time Parameters 37 Table 17 Printer Parameters 38 Table 18 Ethernet Settings ...

Страница 32: ... 82 Table 33 Digital Channel Parameters 83 Table 34 DOCSIS Channel Parameters 83 Table 35 Telemetry Settings Parameters 87 Table 36 PC Connection Parameters 98 Table 37 WFA Browser Settings Parameters 100 Table 38 WFA Browser Graphical Pointer 110 Table 39 Browser Softkeys 111 Table 40 Home Certification Test Results 120 Table 41 Home Certification Test Results 125 Table 42 Home Certification Test...

Страница 33: ...List of Tables DSAM Help User Guide Revision 001 xxix 21128026 R001 DSAM Help User Guide book Page xxix Thursday February 5 2009 2 02 PM ...

Страница 34: ...List of Tables xxx DSAM Help User Guide Revision 001 21128026 R001 DSAM Help User Guide book Page xxx Thursday February 5 2009 2 02 PM ...

Страница 35: ...is Guide Purpose and Scope on page xxxii Assumptions on page xxxii Related Information on page xxxii Technical Assistance on page xxxii Conventions on page xxxiv 21128026 R001 DSAM Help User Guide book Page xxxi Thursday February 5 2009 2 02 PM ...

Страница 36: ...nced users who want to use the DSAM Product Family Series effectively and effi ciently We are assuming that you have basic computer and mouse track ball experience and are familiar with basic telecommunication concepts and terminology Related Information Use this guide in conjunction with the following information JDS Uniphase Corporation DSAM Product Family Quick Start Guide 6510 30 0384 Technica...

Страница 37: ...V Multimedia Products 1 800 428 424 Ext 8350 America 1 317 788 9351 Ext 8350 World Wide catv support jdsu com Europe Africa and Mid East 49 0 7121 86 1345 Europe hotline europe jdsu com 800 882 85822 European Freephone support uk jdsu com 49 0 6172 59 11 00 JDS Uniphase Corporation Germany hotline germany jdsu com 33 0 1 39 30 24 24 JDS Uniphase Corporation France hotline germany jdsu com Asia Pac...

Страница 38: ...own is displayed in this type face Type a set exe in the dialog box Variables appear in this typeface Type the new hostname Book references appear in this typeface Refer to Newton s Telecom Dic tionary 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 pass...

Страница 39: ...Example This symbol represents a general hazard This symbol represents a risk of electrical shock NOTE This symbol represents a Note indicating related information or tip 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 2112...

Страница 40: ...About This Guide Conventions xxxvi DSAM Help User Guide Rev 001 21128026 R001 DSAM Help User Guide book Page xxxvi Thursday February 5 2009 2 02 PM ...

Страница 41: ... general description of the DSAM Product Family Series Topics discussed in this chapter include the following About DSAM Product Family Series on page 2 Mode Keys on page 4 Shift Keys on page 4 Additional Functions on page 6 21128026 R001 DSAM Help User Guide book Page 1 Thursday February 5 2009 2 02 PM ...

Страница 42: ...de Rev 001 About DSAM Product Family Series Figure 1 DSAM Product Family Series Field Meter Front Panel Layout Display Screen Display Softkeys Enter key Mode keys Shift key Power key Alphanumeric keys Exit key Arrow keys 21128026 R001 DSAM Help User Guide book Page 2 Thursday February 5 2009 2 02 PM ...

Страница 43: ...2 Meter Info Table 6 Obtaining DSAM Information General Channel Plan Limit Set User Name Date Last Synchronized Status Time Date Date Calibrated Temperature Memory Available Details Serial Number Software Version Hardware Version Battery Type QAM Conformance Meter MAC Address Cable Modem MAC Address Media Terminal Adapter MAC Address Options Information about installed options 21128026 R001 DSAM H...

Страница 44: ... and frequently used measurement modes Shift 3 means that you press the Shift key and then press the 3 key Figure 3 DSAM Mode Keys Table 7 Shift Key Shortcuts Function Key Sequence Icon Description Speaker Volume Shift 3 Displays Configure Adjust Sounds screen Test Point Compensation Shift 4 Displays Configure Test Point Com pensation screen Help System Shift 5 Displays topic related help text Met...

Страница 45: ...me measurement modes Apply Best Reference Setting Shift 9 Automatically adjust the analog meter to the best reference setting when applicable Use the arrow keys to adjust the setting by one 1 dB per key No function at this time Shift Not Currently Used Change Polarity of a Numeric Entry Shift 0 Allows you to enter a positive or negative numeric value No function at this time Shift CLEAR Not Curren...

Страница 46: ... Ethernet CM Diagnostics Page VoIP Downstream Spectrum Sweep Field View WFA Browser Local Browser Digital Quality Index DQI Table 8 Function Shift Key Shortcuts Function Key Sequence Description Level Shift Softkey 1 Displays Level screen Miniscan Shift Softkey 2 Displays Miniscan screen Upstream Spectrum Shift Softkey 3 Displays Upstream Spectrum screen DOCSIS Shift Softkey 4 Displays DOCSIS scre...

Страница 47: ... describes navigating the DSAM interface and the func tionality of the keys The topics discussed in this chapter are The Keypad on page 8 The User Interface on page 9 Accessing Help on page 10 21128026 R001 DSAM Help User Guide book Page 7 Thursday February 5 2009 2 02 PM ...

Страница 48: ...ccess functions within one of the following modes press one of the round mode keys AutoTest Measure Access Configure Alphanumeric Keypad Use the alphanumeric keys to enter numeric values letters and spaces Where applicable repeat presses of the same key cycle through the characters such as 2 then a then b then c then 2 etc Shift Key Press the blue shift key before pressing an alphanumeric key to a...

Страница 49: ...ce the DSAM in Standby mode up to 45 minutes or turn the meter off The User Interface The title bar at the top of the screen displays status indicators during certain conditions These indicator symbols flash to inform you that the meter is Conducting a repetitive measurement Paused the measurement is not updated Displaying a file In need of a charge Receiving a charge In need of service Figure 5 E...

Страница 50: ... access Help text as questions occur or easily review all of the text associated with a particular function as a short tutorial before attempting a task To access Help press Shift or Shift 5 on the alphanumeric keypad Figure 1 on page 2 Table 9 Title Bar Icons Name Symbol Description Heartbeat Triangle A triangular heartbeat icon indicates the beginning of each measurement cycle on screens where m...

Страница 51: ... topic 2 Press ENTER The Help submode menu for that topic is displayed Figure 7 3 To specify the Help text you would like to review use the arrow keys again to select a topic 4 Press ENTER Accessing Help from a Submode When you access the Help system from any screen within one of the submodes such as Combo AutoTest DOCSIS or Level DSAM displays a submode level menu of specific Help topics Figure 7...

Страница 52: ...ward to the selected menu option or backward to the last viewed Help screen 1 To return to the beginning of the last active mode press the Exit softkey 2 To display the Help main menu Figure 8 use the Menu softkey Figure 7 Help Menu for AutoTest Figure 8 Help Main Menu 21128026 R001 DSAM Help User Guide book Page 12 Thursday February 5 2009 2 02 PM ...

Страница 53: ...M Product Family Series battery The topics discussed in this chapter are Installing and Maintaining the EZ Charge Battery on page 14 Installing and Maintaining the Standard Capacity Battery on page 17 Making Additional Connections on page 19 21128026 R001 DSAM Help User Guide book Page 13 Thursday February 5 2009 2 02 PM ...

Страница 54: ... the cavity of the meter until the top edge of the battery latches into place Removing the Battery To remove the battery 1 Ensure the power is off 2 Hold the meter securely with the display screen facing away from you and the keypad in the palm of your hand 3 Press the release button Figure 9 located directly above the battery in the center of the back of the meter CAUTION INSTRUMENT DAMAGE Failur...

Страница 55: ...AM Product Family Series a 12 volt DC universal power supply module a power cord and a 12 volt DC in vehicle power cable To connect the external power components Figure 10 on page 16 to the DSAM Product Family Series battery Figure 9 DSAM Product Family Series Field Meter Rear View Battery Battery Release Button IMPORTANT Read all safety instructions in the front of this guide before attempt ing t...

Страница 56: ...r into the connection port 5 Insert power cord male plug to an AC power source when you are ready to power the meter or charge the battery If you are using the DC connector connect it to an appropriate 12 volt DC power source WARNING ELECTRICAL SHOCK Electrical shock may result in serious injury or death Be sure the AC cord is connected to the correct voltage mains Do not use out doors or in wet l...

Страница 57: ... edge at the bottom of the meter 3 Gently lower the battery into the cavity of the meter until the top edge of the battery latches into place Removing the Battery To remove the battery 1 Hold the DSAM securely with the display screen facing away from you and the keypad in the palm of your hand 2 Press the release button located directly above the battery in the center of the back of the meter 3 Ge...

Страница 58: ...in the manner displayed in Figure 10 on page 16 IMPORTANT Read all safety instructions in the front of this guide before attempt ing to power the meter or charge the battery Important Safety Instructions on page 304 Figure 11 Standard Capacity External Power Components 21128026 R001 DSAM Help User Guide book Page 18 Thursday February 5 2009 2 02 PM ...

Страница 59: ...ord plug to an AC power source when you are ready to power the meter or charge the battery If you are using the DC connector connect it to an appropriate 12 volt DC power source Making Additional Connections Use the Ethernet port located on the top of the meter to clone settings with other DSAM Product Family Series meters Clone on page 48 or to synchronize your data with optional TPP utility soft...

Страница 60: ...Chapter 3 Battery Installation Making Additional Connections 20 DSAM Help User Guide Rev 001 21128026 R001 DSAM Help User Guide book Page 20 Thursday February 5 2009 2 02 PM ...

Страница 61: ...ng the DSAM This chapter describes the test results that you gather when running a test Test results described in this chapter are as follows Powering the Meter on page 22 21128026 R001 DSAM Help User Guide book Page 21 Thursday February 5 2009 2 02 PM ...

Страница 62: ...the meter 1 For typical battery charging fast charge or maximum capacity and normal operational values IMPORTANT Read all safety instructions in the front of this guide before attempt ing to power the meter or charge the battery Important Safety Instructions on page 304 NOTE You can power the DSAM and recharge the batteries at the same time If you do not want to interrupt the current test you may ...

Страница 63: ...s required Understanding the Standard Capacity Battery LED s There are two LED indicator lights on your DSAM Product Family Series standard capacity charger module the Power LED and the Charge LED The green Power LED illuminates to indicate that the charger module is receiving power The Charge LED illuminates in red green or orange to indicate the present battery and charge condition It may remain...

Страница 64: ...mal charging conditions this LED should remain on constantly A flashing LED is indicative of a fault condition To inter pret the CHARGE LED indications review Table 12 Green On constant Fast charge cycle is complete battery is ready for use and in maintenance charge mode while attached to the charger module Red Flashing Battery related error or defect detected min max cell voltage or bat tery temp...

Страница 65: ... charging To begin and maintain the charge mode the battery temperature should be approximately between 0 C 32 F and 50 C 122 F The charge mode automatically resumes when the battery temperature returns within this range Table 12 High Capacity Charge LED Indications LED color State Battery and charge condition Red CHARGE Steady Charging Flashing Charge fault check Temp too high low or DC too high ...

Страница 66: ...Chapter 4 Powering the DSAM Powering the Meter 26 DSAM Help User Guide Rev 001 21128026 R001 DSAM Help User Guide book Page 26 Thursday February 5 2009 2 02 PM ...

Страница 67: ...ty of the instrument Topics discussed in this chapter are as follows Overview on page 28 Configure General Tab on page 28 Configure Measure Tab on page 55 Configure Channel Plan Tab on page 77 Configure Access Tab on page 96 21128026 R001 DSAM Help User Guide book Page 27 Thursday February 5 2009 2 02 PM ...

Страница 68: ...eet your data management needs Configure General Tab The Configure mode General tab enables you to edit the following configuration areas for the DSAM Adjust contrast Adjust sounds Optimize battery life Enter your personal information Set date and time Configure printer Configure Ethernet Configure RF network Configure ports Set locale preferences Administer security Perform meter maintenance Clon...

Страница 69: ...ahren heit or 20 to 50 degrees Celsius The factory default for screen contrast is 50 Configuring Screen Contrast To configure screen contrast 1 Press Configure 2 Press the General softkey 3 Using the arrow keys select Contrast 4 Press ENTER NOTE Contrast is not applicable to DSAMXT models NOTE When working in extreme temperatures JDSU recommends using Manual mode Figure 13 Configure General Tab Co...

Страница 70: ...stment 7 Press the Done softkey Sound Use the Adjust Sounds screen to change the volume of sounds and the sensitivity of the microphone Configuring Sounds To configure sounds 1 Press Configure 2 Press the General softkey Figure 14 Configure Adjust Contrast NOTE When the Auto softkey is displayed the DSAM contrast function is in Manual mode and vice versa The factory default mode is Auto NOTE To pe...

Страница 71: ...elect the parameter you want to edit 6 Press ENTER 7 Using the arrow keys select an option 8 Press ENTER 9 Press the OK softkey Figure 15 Configure General Tab Sounds Figure 16 Configure Adjust Sounds NOTE Press Shift 3 to access the Adjust Sounds screen from a mea surement screen 21128026 R001 DSAM Help User Guide book Page 31 Thursday February 5 2009 2 02 PM ...

Страница 72: ... Sound Parameters Name Description System Sounds The sound level of beeps and other noises made by the meter Valid options are Off Quiet Medium and Loud The default option is Medium System Speaker Level The sound level of the speaker Valid options are one through ten The default option is nine System Micro phone Level The sensitivity of the microphone Valid options are one through ten The default ...

Страница 73: ...softkey Figure 18 Configure Optimize Battery Life NOTE Press Shift Shift to turn the backlight on or off Table 14 Battery Conservation Parameters Name Description Meter Off The number of minutes of non activity before the meter powers off Valid options are After 5 minutes After 10 minutes After 15 minutes Never The default option is After 15 minutes 21128026 R001 DSAM Help User Guide book Page 33 ...

Страница 74: ...gure 2 Press the General softkey 3 Using the arrow keys select About Me 4 Press ENTER Backlight Off The number of seconds of non activity before the screen dims Valid options are Always After 5 seconds After 15 seconds After 30 seconds Never The default option is After 15 seconds Table 14 Battery Conservation Parameters Continued Name Description Figure 19 Configure General Tab About Me 21128026 R...

Страница 75: ...rent date and time Figure 20 Configure Enter Your Info NOTE Press the 1 key repeatedly to access a variety of special charac ters etc then press ENTER Table 15 About Me Parameters Name Description My Name Your name as it will appear in TPP My Employee ID Your employee ID as assigned in TPP NOTE The Set Date and Time screen may be locked by TPP Also TPP may be configured to update the date and time...

Страница 76: ...oftkey 3 Using the arrow keys select Date and Time 4 Press ENTER 5 Using the arrow keys select the parameter you want to edit 6 Press ENTER 7 Using the arrow keys and the alphanumeric keypad edit the value 8 Press ENTER Figure 21 Configure General Tab Date and Time Figure 22 Configure Set Date and Time 21128026 R001 DSAM Help User Guide book Page 36 Thursday February 5 2009 2 02 PM ...

Страница 77: ...onfigure the printer 1 Press Configure 2 Press the General softkey 3 Using the arrow keys select Printer 4 Press ENTER NOTE To change the date format see Regional Preferences on page 43 Table 16 Date and Time Parameters Name Description Current Date The current date Current Time The current time in 24 hour format Figure 23 Configure General Tab Printer 21128026 R001 DSAM Help User Guide book Page ...

Страница 78: ...twork setting Use the Configure Ethernet Network screen to specify an alternate IP address subnet mask default gateway and DNS server Figure 24 Configure Configure Printer Table 17 Printer Parameters Name Description Type The type of printer Options are Epson serial and Citizen serial The default option is Epson serial Lines Per Page The number of lines printed per page The default value is 66 The...

Страница 79: ...ey 3 Using the arrow keys select Ethernet Network 4 Press ENTER 5 Using the arrow keys select the parameter you want to edit 6 Press ENTER 7 Using the arrow keys and the alphanumeric keypad edit the value 8 Press ENTER Figure 25 Configure General Tab Ethernet Network Figure 26 Configure Mode Configure Ethernet 21128026 R001 DSAM Help User Guide book Page 39 Thursday February 5 2009 2 02 PM ...

Страница 80: ...Mask The subnet mask for the meter A subnet mask is used in the IP addressing system which divides the IP address in two parts the network part and the host part The subnet mask works by masking out the network part from the full IP address The valid range for this value is 0 0 0 0 to 255 255 255 255 All IP addresses are numeric only Default Gateway The default gateway for the meter A default gate...

Страница 81: ...ress ENTER 7 Using the arrow keys and the alphanumeric keypad edit the value 8 Press ENTER 9 Press the OK softkey RF Network Parameters RF network parameters are the same as Ethernet parameters Refer to Ethernet Settings Parameters on page 40 Figure 27 Configure General Tab RF Network Figure 28 Configure Configure RF Network 21128026 R001 DSAM Help User Guide book Page 41 Thursday February 5 2009 ...

Страница 82: ...ng Connection Settings To configure connection settings 1 Press Configure 2 Press the General softkey 3 Using the arrow keys select Connection 4 Press ENTER 5 Press ENTER 6 Using the arrow keys select an option 7 Press ENTER Figure 29 Configure General Tab Connection Figure 30 Configure Configure Ports 21128026 R001 DSAM Help User Guide book Page 42 Thursday February 5 2009 2 02 PM ...

Страница 83: ...l perfor mance units Configuring Regional Preferences To configure regional settings 1 Press Configure 2 Press the General softkey 3 Using the arrow keys select Regional Preferences 4 Press ENTER Table 19 Connection Parameters Name Description RS 232 Baud Rate The signaling rate of the RS 232 port The default option is 57600 Figure 31 Configure General Tab Regional Preferences 21128026 R001 DSAM H...

Страница 84: ...her options Table 20 Regional Preferences Parameters Name Description Language The language displayed in the user interface Options are English French German and Spanish Other languages may be installed on your particu lar meter by the factory The default option is Eng lish NOTE You must restart the meter after chang ing the language for the new language to take effect Preset To The country where ...

Страница 85: ...of measure used to select the temperature options Valid options are Fahrenheit or Celsius The default option is Fahrenheit Distance Units The unit of measure used to select the distant or length options Valid options are Feet or Meters The default option is Feet Digital Perfor mance Units The unit of measure used to select the performance rating options Valid options are MER modulation error ratio...

Страница 86: ...lect Set your personal identification number PIN 6 Press ENTER 7 Type your four digit PIN using only digits 0 through 9 8 Press the Next softkey 9 Type your PIN again to confirm it 10 Press the OK softkey Figure 33 Configure General Tab Security Figure 34 Configure Administer Security 21128026 R001 DSAM Help User Guide book Page 46 Thursday February 5 2009 2 02 PM ...

Страница 87: ...l Files This utility deletes all measurement files and channel plans currently stored in your meter including protected files Restore Factory Defaults This utility restores all configuration parameters to their factory preset values Reset Meter This utility returns all parameters to the factory default values It also disables security protection and removes the existing personal identi fication nu...

Страница 88: ... configuration parameters channel plans and limit plans between meters Sending Settings To send settings 1 Connect the meters via Ethernet cable The Ethernet port is located at the top of each meter Use an Ethernet crossover cable or a standard ethernet cable with a crossover adapter to connect meters Figure 35 Configure General Tab Choose a Utility Figure 36 Configure Choose a Utility 21128026 R0...

Страница 89: ...sing the arrow keys select Send settings from this meter 7 Press the Select softkey 8 Using the arrow keys and the Select softkey select or deselect the configuration group s you want to clone 9 Press the OK softkey 10 Press the Done softkey Figure 37 Configure General Tab Clone Figure 38 Configure Clone 21128026 R001 DSAM Help User Guide book Page 49 Thursday February 5 2009 2 02 PM ...

Страница 90: ... the top of each meter Use an Ethernet crossover cable or a standard ethernet cable with a crossover adapter to connect meters 2 Press Configure 3 Press the General softkey 4 Using the arrow keys select Clone 5 Press ENTER 6 Using the arrow keys select receive settings from another meter Diagnostic Use the Diagnostic screen to test the keypad and or connect to the TPP network and control the DSAM ...

Страница 91: ...t the Keypad 6 Press ENTER An image of the keypad is displayed When you press each key on the pad it is highlighted on the screen if functioning properly The key should remain highlighted as long as you press it Figure 39 Configure General Tab Diagnostic Figure 40 Configure Choose a Diagnostic 21128026 R001 DSAM Help User Guide book Page 51 Thursday February 5 2009 2 02 PM ...

Страница 92: ... Configure 3 Press the General softkey 4 Using the arrow keys select Diagnostic 5 Press ENTER 6 Using the arrow keys select Use Virtual DSAM 7 Press the Select softkey Figure 41 Configure Keypad Test NOTE During the test the only keys that function normally are the Power key and the Done softkey NOTE In order to use Virtual DSAM your computer and the Ethernet cable must be connected to the same IP...

Страница 93: ...he Bind Results screen displays network assignments IP address Subnet address and Default Gateway and meter information CPE MAC address 8 Launch the TPP Client application from your PC 9 Click DSAM Remote Access The JDSU Remote DSAM window is displayed Figure 42 Configure Bind Results Figure 43 TPP DSAM Remote Access 21128026 R001 DSAM Help User Guide book Page 53 Thursday February 5 2009 2 02 PM ...

Страница 94: ...ction menu select Connect to Meter The Connect to Meter window is displayed 11 From the Bind Results screen Figure 42 type the IP address 12 Press the OK softkey Figure 44 TPP JDSU Remote DSAM Figure 45 TPP JDSU Remote DSAM 21128026 R001 DSAM Help User Guide book Page 54 Thursday February 5 2009 2 02 PM ...

Страница 95: ... Other Settings Return QAM Generator Test Point Compensation Sweep Settings The Sweep Settings screen enables you to set the sweep tilt limit and reverse sweep port parameters Configuring Sweep Settings To configure sweep settings 1 Press Configure 2 Press the Measure softkey 3 Using the arrow keys select Sweep Settings 4 Press ENTER Figure 46 Configure Measure Tab Sweep Settings 21128026 R001 DSA...

Страница 96: ...meters Name Description Tilt Compensa tion Sweep Tilt Compensation is different from the stan dard DSAM Tilt mode Typically Tilt Compensation is used to adjust the sweep response on a branch of a network where the branch tilt is not the same as the mainline network Valid options are On and Off The default option is Off Low Tilt Fre quency Use the up and down arrow keys to increase or decrease the ...

Страница 97: ...eep max min value or sweep peak to valley value both in dB delta Thus a Sweep Limit Value of 2 0 dB allows a sweep max min value in the DSAM sweep display no greater than 1 0 to 1 0 dB on either side of the ideal sweep response The valid range is 0 00 to 5 0 dB The default value is 2 00 dB Reverse Sweep Port Valid options are Port 1 Bidirectional and Port 2 Reverse Only If you select Port 2 both p...

Страница 98: ...u define remain constant for all channel plans and measurement modes Configuring Limit Sets To configure limit sets 1 Press Configure 2 Press the Measure softkey 3 Using the arrow keys select Limit Sets 4 Press ENTER 5 Using the arrow keys select the limit set you want to edit 6 Press the Edit softkey Figure 48 Configure Measure Tab Limit Sets Figure 49 Configure Limit Sets 21128026 R001 DSAM Help...

Страница 99: ...on is displayed to the left of a limit set it indicates that the limit set is locked and requires a PIN entry prior to editing To reset the currently selected parameter to its factory default value press the Default softkey Table 22 Limit Set Parameters Name Description Min Video Level The minimum video signal level before it exceeds your set limit The default value is 0 0 Max Video Level The maxi...

Страница 100: ...y dB The peak to valley is the highest level in the chan nel plan less the lowest level in the channel plan or the delta between the highest and lowest levels in the channel plan The maximum peak to valley before it exceeds your set limit The valid range is 0 0 to 100 0 The default value is 10 0 Max Video to Dig ital Delta dB The maximum video to digital delta before it exceeds your set limit The ...

Страница 101: ...it is set to MER in Regional Preferences The default value is 1 55 if the digital performance unit is set to EVM in Regional Preferences Max Pre BER The maximum bit error rate prior to forward error correction before it exceeds your set limit The default value is 1 0E 7 Max Post BER The maximum bit error rate after forward error cor rection before it exceeds your set limit The default value is 1 0...

Страница 102: ...dit 6 Press ENTER Figure 51 Configure Measure Tab DOCSIS Throughput Figure 52 Configure DOCSIS Throughput NOTE The default values for the server IP address and file to be trans ferred are maintained by JDS Uniphase Corporation For more accurate results JDS Uniphase Corporation recommends that you set up your own throughput server close to your gateway 21128026 R001 DSAM Help User Guide book Page 6...

Страница 103: ...ttings To configure FDR settings 1 Press Configure 2 Press the Measure softkey 3 Using the arrow keys select FDR Settings 4 Press ENTER Table 23 DOCSIS Throughput Parameters Name Description Downstream HTTP Server IP Address A numeric static IP address for the HTTP server File to be Trans ferred by the Meter The name of the file to download The recom mended file size is 20MB Figure 53 Configure Me...

Страница 104: ...gure FDR Settings Table 24 FDR Parameters Name Description Resolution of Measurement The resolution of measurement determines the number of data points maximum distance of and distance resolution accuracy of the measurement This setting affects the time per measurement cycle with LOW being fast least accurate and ULTRA being slow most accurate Valid options are LOW 64pts MEDIUM 128pts HIGH 256pts ...

Страница 105: ...on The velocity of propagation VOP is a property of the cable in use and greatly affects the measure ment accuracy Possible values are 0 3 through 1 0 The default value is 820 Cable Compen sation Valid options are On and Off The default option is On Cable Attenuation The cable attenuation parameter is only used if Cable Compensation is set to ON Cable Attenua tion calibrates the distance measureme...

Страница 106: ...MAC Media Access Control address for the Customer Premises Equip ment CPE in hexadecimal format Cable Modem Roving MAC Address The roving MAC address for the Cable Modem in hexadecimal format MTA Roving MAC Address The roving MTA Multimedia Terminal Adapter MAC address for VoIP in hexadecimal format DOCSIS Configu ration Select Range Only Range and Registration or Registration with CPE Initializat...

Страница 107: ...SIS Valid options are BPI or BPI The default value is BPI Channel Order for Lists and Tun ing Select an option to sort by channel or frequency for lists and tuning Valid options are Channel and Fre quency The default value is Channel When Tuning with Arrows Incre ment by MHz Use the up and down arrow keys to define the amount of increase or decrease in 0 01 MHz incre ments the amount by which the ...

Страница 108: ...the alphanumeric keypad edit the value OR 6 Using the arrow keys select an option 7 Press the OK softkey Figure 57 Configure Measure Tab VoIP Check NOTE For more accurate results JDS Uniphase Corporation recommends that you set up your own VoIPCheck server close to your gateway Figure 58 Configure VoIPCheck 21128026 R001 DSAM Help User Guide book Page 68 Thursday February 5 2009 2 02 PM ...

Страница 109: ...he numerical identification logical address assigned to the server that identifies it to the net work The valid range for this value is 0 0 0 0 to 255 255 255 255 All IP addresses are numeric only Ethernet Port of the Server The 4 digit port number on the Ethernet server Codec to Simu late The ID of the device used to convert analog signals to digital signals The default option is G 711u Size ms o...

Страница 110: ... range is 5 00 to 55 00 MHz The default value is 5 00 Level The valid range is 8 0 to 58 0 dBmV The default value is 8 00 Modulation Type The type of modulation used to transmit signals Valid options are CW carrier wave 16 QAM or 64 QAM The default option is CW Symbol Rate The number of symbol changes signalling events made to the transmission medium per second using a digitally modulated signal o...

Страница 111: ...d inside each saved measurement file and permanently associated with the file Also TPC icons display for each mode If a mode is created that has a total effect of 0 dB on the current mode the icon does not appear The default setting of Off has an effect of 0 dB The total effect of the current Test Point Compensation file if non zero is displayed to the right of the icon The Test Point Compensation...

Страница 112: ...ect Test Point Compensation 4 Press ENTER NOTE Forward TPC values are applied to all modes except Reverse Sweep and Reverse Alignment modes Reverse TPC values are only applied to Reverse Sweep and Reverse Alignment modes Figure 61 Configure Measure Tab Test Point Compensation NOTE If you select Off no TPC is applied and you can only modify the Reverse Telemetry Level and Reverse Sweep Insertion Le...

Страница 113: ... the alphanumeric keypad edit the value 9 Press the OK softkey Editing a TPC Plan To edit a TPC plan 1 Using the arrow keys select the TPC plan you want to edit 2 Press the File softkey 3 Using the arrow keys select Edit Figure 62 Configure Test Point Compensation Figure 63 Configure Create a New TPC Plan 21128026 R001 DSAM Help User Guide book Page 73 Thursday February 5 2009 2 02 PM ...

Страница 114: ...s the OK softkey Figure 64 Configure Edit TPC Plan NOTE The sum of the Reverse Internal Loss Reverse External Loss Reverse Probe Loss and Reverse Telemetry Level must be between 100 dBmV and 55 dBmV however this number changes based on the active units The sum of the Reverse Internal Loss Reverse External Loss Reverse Probe Loss and Reverse Sweep Insertion Level must be less than 100 dBmV and 55 d...

Страница 115: ...l to 10 dBmV The default value is 0 0 dB Reverse External Loss Example A distribution tap value on a drop The sum of the internal external and probe losses plus the Telemetry level must be greater than or equal to 10 dBmV The default value is 0 0 dB Reverse Probe Loss Example Attenuator added inline with test lead The sum of the internal external and probe losses plus the Telemetry level must be g...

Страница 116: ...key 3 Using the arrow keys select Delete 4 Press ENTER 5 Press the Yes softkey to confirm Viewing a Graphical Summary To view a graphical summary 1 Using the arrow keys select the TPC plan you want to view 2 Press the Summary softkey The TPC Summary screen is displayed 3 Press the Forward softkey to view more of the plan NOTE If the TPC plan is set to Off the Delete option is disabled Figure 65 Co...

Страница 117: ...within a plan to meet a variety of measurement objectives Use channel plan configuration to Select a channel plan Edit a channel plan Enable disable channels in a channel plan Configure MiniScan channels Configure AutoTest parameters for the currently selected plan Build a new custom channel plan Configure telemetry settings for sweep or field view Select browser and synchronization channels Figur...

Страница 118: ...t the parameters of individual channels within a plan to meet a variety of measurement objectives Choosing a Channel Plan To select a channel plan 1 Press Configure 2 Press the Chan Plan softkey 3 Using the arrow keys select Downstream Plans 4 Press ENTER Figure 67 Configure Channel Plan Tab Downstream Plans Figure 68 Configure Downstream Plans 21128026 R001 DSAM Help User Guide book Page 78 Thurs...

Страница 119: ...nnels within the plan You can change the parameters of indi vidual channels or add and delete channels from the plan 1 Press Configure 2 Press the Chan Plan softkey 3 Using the arrow keys select Downstream Plans 4 Press ENTER 5 Using the arrow keys select a plan 6 Press the Plan softkey 7 Using the arrow keys select Edit 8 Press ENTER NOTE The plan name is displayed in the title bar for all subseq...

Страница 120: ...ew channel Delete To delete the selected channel Enabled Disabled To enable disable the current channel A disabled channel does not appear in any measurements but remains in your channel plan until you delete it You cannot disable all channels in a plan at least one channel must be enabled Delete All Disabled To delete all disabled channels from the plan Figure 69 Configure Select a Channel to Edi...

Страница 121: ...ociates the channel s number to programming The label is displayed to the left of the channel number on most screens Frequency The rate at which the signal pattern is repeated Table 30 TV Channel Parameters Name Description Video Signal The video signal type Valid options are NTSC B Pal B SECAM B1 PAL The default option is NTSC Scrambled An indication of whether the channel is scrambled or not Val...

Страница 122: ...l The video signal type Valid options are NTSC B Pal B SECAM B1 PAL The default option is NTSC Scrambled An indication of whether the channel is scrambled or not Valid options are Yes and No CN Enabled Carrier to noise enabled Valid options are Yes and No Audio 1 Offset Carrier to noise offset for the first audio frequency Audio 2 Offset Carrier to noise offset for the second audio fre quency CN O...

Страница 123: ...s and No The default option is No Table 34 DOCSIS Channel Parameters Name Description Enabled Whether or not the channel is enabled Options are Yes and No Type The channel type Options are TV Single Dual DIG and DOCSIS Channel Number The number assigned to the frequency Label A user defined distinctive label used to identify the channel The label associates the channel s number to programming The ...

Страница 124: ... Channels 8 Press ENTER 9 Using the arrow keys select a channel you want to include 10 Press the Select softkey Symbol Rate The symbol rate corresponds to the size and shape bandwidth of the digital signal The symbol rate changes to carrier bandwidth if you select Other for Modulation Inverted Spec trum Designates whether or not the signal is inverted Valid options are Yes and No The default optio...

Страница 125: ...ect the plan you want to work with 6 Press the Plan softkey 7 Using the arrow keys select Tilt Channels 8 Press ENTER 9 Using the arrow keys select each channel you want to include 10 Press the Select softkey The minimum number of channels is one The maximum number of channels is 12 11 Press the Done softkey Configuring Access Channels This function lists all DOCSIS channels and lets you indicate ...

Страница 126: ...ow keys select the channel you want to include 10 Press the Select softkey Configuring Telemetry Frequency The Telemetry frequency is the frequency used to transmit data from the headend modem to the DSAM Telemetry frequency on the DSAM must match the frequency at which the headend modem HSM 1000 is broadcasting The valid frequency range is between 50 MHz and 1000 MHz To configure telemetry freque...

Страница 127: ... Name Description SDA 5500 Telemetry Frequency MHz The transmission frequency of the SDA 5500 SDA 5510 Telemetry Frequency MHz The transmission frequency of the SDA 5510 Single Multi User Reverse Sweep Valid options are Single User for SDA 5500 and Multi User for SDA5510 Field View Telemetry Frequency MHz The transmission frequency of the HSM NOTE When you configure a telemetry setting the paramet...

Страница 128: ...ble Modem AutoTest or Home Certi fication test Configuring AutoTest for Cable Modem To configure AutoTest for cable modems 1 Press Configure 2 Press the Chan Plan softkey 3 Using the arrow keys select AutoTests 4 Press ENTER NOTE When you configure an AutoTest the parameters apply only to the current active plan Other channel plans require their own AutoTest configuration Figure 75 Configure Chann...

Страница 129: ...a DOCSIS channel you want to include or exclude 8 Press the Select softkey 9 Press the Done softkey Configuring AutoTest for Video Channels To configure AutoTest for video channels 1 Press Configure 2 Press the Chan Plan softkey Figure 76 Configure Select an Autotest Figure 77 Configure Mode Cable Modem AutoTest 21128026 R001 DSAM Help User Guide book Page 89 Thursday February 5 2009 2 02 PM ...

Страница 130: ... Using the arrow keys select AutoTests 4 Press ENTER 5 Using the arrow keys select Video Channels 6 Press the Configure softkey Figure 78 Configure Channel Plan Tab AutoTests Figure 79 Configure Select an Autotest 21128026 R001 DSAM Help User Guide book Page 90 Thursday February 5 2009 2 02 PM ...

Страница 131: ...tkey to include the measurement as a part of the AutoTest The BER softkey is enabled when bit error ratio measurements are available on certain digital channels 11 Press the Done softkey Build New Plan Use the Build New Plan option to let the meter identify and charac terize the channels in your system Building a New Channel Plan To build a new channel plan 1 Press Configure 2 Press the Chan Plan ...

Страница 132: ...ect Build New Plan 4 Press ENTER 5 Using the arrow keys and the alphanumeric keypad type the plan name 6 Press the Next softkey 7 Press ENTER Figure 81 Configure Channel Plan Tab Build New Plan Figure 82 Configure Build a New Plan step 1 21128026 R001 DSAM Help User Guide book Page 92 Thursday February 5 2009 2 02 PM ...

Страница 133: ... plan 9 Press ENTER 10 Press the Next softkey 11 Using the arrow keys and the alphanumeric keypad enter the stop frequency up to 1000 MHz 12 Press the Next softkey Figure 83 Configure Build a New Plan step 2 Figure 84 Configure Build a New Plan step 3 21128026 R001 DSAM Help User Guide book Page 93 Thursday February 5 2009 2 02 PM ...

Страница 134: ...e meter searches the cable system for active channels and displays the following the plan name you entered the template you used the stop frequency the number of channels found Figure 85 Configure Build a New Plan step 4 Figure 86 Configure Build a New Plan searching 21128026 R001 DSAM Help User Guide book Page 94 Thursday February 5 2009 2 02 PM ...

Страница 135: ... to create or edit a location setting Configuring Location Settings To configure location settings 1 Press Configure 2 Press the Chan Plan softkey 3 Using the arrow keys select Location Settings Figure 87 Configure Build a New Plan complete NOTE The Location Settings screen can be disabled on your meter from TPP Figure 88 Configure Channel Plan Tab Location Settings 21128026 R001 DSAM Help User Gu...

Страница 136: ... to define the IP address The Access tab also provides WFA browser parameters to enter the preferred ethernet or RF connection home URL proxy server param eters optional and CM diagnostic web page information PC Connection Use the PC Connection screen to select which network interface to use Ethernet or RF to connect to a PC and the IP address at which the PC is located The default connection is E...

Страница 137: ...on 1 Press Configure 2 Press the Access softkey 3 Using the arrow keys select PC Connection 4 Press ENTER 5 Using the arrow keys select the parameter you want to edit 6 Press ENTER Figure 90 Configure Access Tab PC Connection Figure 91 Configure PC Connection 21128026 R001 DSAM Help User Guide book Page 97 Thursday February 5 2009 2 02 PM ...

Страница 138: ...zation parameters are dis abled you cannot change them from your meter Table 36 PC Connection Parameters Name Description Preferred Con nection The connection type Valid options are Ethernet and RF The default value is Ethernet IP Address The numerical identification logical address assigned to the PC that identifies it to the network The valid range for this value is 0 0 0 0 to 255 255 255 255 Al...

Страница 139: ...ER 5 Using the arrow keys select the parameter you want to edit 6 Press ENTER 7 Using the arrow keys or the alphanumeric keypad edit the value 8 Press ENTER 9 Press the OK softkey Figure 92 Configure Access Tab WFA Browser Settings Figure 93 Configure Browser Settings 21128026 R001 DSAM Help User Guide book Page 99 Thursday February 5 2009 2 02 PM ...

Страница 140: ...y vary for each network Proxy Usage The DSAM allows a proxy server within the Browser and Web Access Test A proxy can be used as a caching mechanism or as a part of a back end fire wall To enable a proxy server for use with the Browser mode or Web Access Test select Use a Proxy Server Proxy Server If you have enabled proxy usage enter the proxy server IP address The valid IP address ranges are 0 0...

Страница 141: ...ed instructions for using the DSAM Product Family Series Access Mode features Topics discussed in this chapter are as follows Overview on page 102 Access Files Tab on page 102 Access Browser Tab on page 108 21128026 R001 DSAM Help User Guide book Page 101 Thursday February 5 2009 2 02 PM ...

Страница 142: ... file within a folder Rename or examine the properties of a folder you cannot rename the Default Folder Delete a selected folder you cannot delete the Default Folder Purge all folders that have been synchronized with JDS Uniphase Corporation Test Productivity Pack TPP software you cannot purge the Default folder Opening a File in Folder To open a folder 1 Press Access 2 Press the Files softkey 3 U...

Страница 143: ... 7 Using the arrow keys select a file 8 Press the Open softkey or ENTER Creating a Folder To create a new folder 1 Press Access 2 Press the Files softkey Figure 94 on page 102 3 Using the arrow keys select Work Folders Figure 95 Access Work Folders Figure 96 Access Open a File 21128026 R001 DSAM Help User Guide book Page 103 Thursday February 5 2009 2 02 PM ...

Страница 144: ...y Figure 94 on page 102 3 Using the arrow keys select Work Folders 4 Press ENTER Figure 95 on page 103 5 Press the Folders softkey 6 Using the arrow keys select the folder you wish to delete 7 Using the arrow keys select Delete 8 Press ENTER The folder name is removed from the list Purging Synchronized Folders You can purge synchronized folders folders with a synchronize icon all at once To purge ...

Страница 145: ... 8 Press the Yes softkey All synchronized folders disappear from the list Renaming a Folder To rename a folder 1 Press Access 2 Press the Files softkey Figure 94 on page 102 3 Using the arrow keys select Work Folders 4 Press ENTER Figure 95 on page 103 5 Using the arrow keys select the folder you want to work with 6 Press the Folders softkey 7 Using the arrow keys select Rename 8 Press ENTER Figur...

Страница 146: ...re 95 on page 103 5 Using the arrow keys select the folder you want to work with 6 Press the Folders softkey 7 Using the arrow keys select Properties 8 Press ENTER Synchronization The Synchronize function enables you to synchronize your folders and the files in them with optional JDS Uniphase Corporation Test Productivity Pack TPP software Through synchronization this soft ware can receive transfe...

Страница 147: ...t cable to a computer or network device and to the Ethernet port on the top of the meter OR 3 Connect a Coax cable to an RF connection and to RF connection 1 on the back of the meter Synchronizing Files To synchronize files 1 Press Access 2 Press the Files softkey NOTE Firmware upgrades are only supported via the Ethernet port When you perform a firmware upgrade the DSAM must be connected through ...

Страница 148: ...es Figure 100 Access Files Tab Synchronize Figure 101 Access Synchronize NOTE Once synchronization begins you cannot cancel it It must complete or time out on its own Once synchronization is complete the DSAM does not reboot if it only file synchronization was performed The DSAM does reboot if synchronization included a firmware upgrade 21128026 R001 DSAM Help User Guide book Page 108 Thursday Feb...

Страница 149: ...o select your connection type and enter proxy information follow the instructions under Configuring WFA Browser Settings on page 98 2 To select a DOCSIS channel follow the instructions under Configuring Access Channels on page 85 Accessing the WFA Browser To access the WFA browser 1 Press Access 2 Press the Browser softkey 3 Using the arrow keys select WFA Browser 4 Press ENTER Figure 102 Access B...

Страница 150: ...ure 103 Access WFA Browser NOTE You can connect a USB mouse to the meter instead of using the graphical pointer Table 38 WFA Browser Graphical Pointer Pointer Motion The pointer motion is controlled by the arrow keys To move the pointer in the same direction as an arrow s direction press the corresponding arrow key The pointer may be moved diagonally by press ing two arrow keys Mouse Buttons The E...

Страница 151: ... the most recent version of the current page Alpha Only Toggles from normal mode to text only mode Up softkey Scrolls toward the top of the page Down softkey Scrolls toward the bottom of the page Alphabetic Mode Softkeys ABC 123 ABC Toggles between alphabetic and alphanumeric mode Backspace End of line New Line Skips to the next line in a multi line text box List Box Softkeys Ctrl Selects an item ...

Страница 152: ...nction enables you to open a saved browser page Since it does not connect to an Ethernet or RF network no network or server configurations are required Keypad and pointer functions in the Local Browser are the same as those in the WFA Browser See Graphical Pointer on page 110 and Softkeys on page 110 for a full description how to use the interface Accessing the Local Browser To access the local br...

Страница 153: ...guring Web Access To configure web access 1 To select your connection type and enter proxy information follow the instructions under Configuring WFA Browser Settings on page 98 2 To select a DOCSIS channel follow the instructions under Configuring Access Channels on page 85 Testing Web Access To test web access 1 Press Access 2 Press the Browser softkey Figure 105 Access Local Browser 21128026 R00...

Страница 154: ...he arrow keys select Web Access Test 4 Press ENTER If the test is successful the DSAM Web Access Test screen is displayed Figure 106 Access Browser Tab WFA Browser Figure 107 Access DSAM Web Access Test 21128026 R001 DSAM Help User Guide book Page 114 Thursday February 5 2009 2 02 PM ...

Страница 155: ...This chapter describes how to configure execute and interpret the results of automated test sequences available on the DSAM AutoTest Overview on page 116 AutoTests Tab on page 116 21128026 R001 DSAM Help User Guide book Page 115 Thursday February 5 2009 2 02 PM ...

Страница 156: ...ial combina tion of analog and digital video channels as well as DOCSIS connec tivity and data tests DOCSIS data tests must be enabled through TPP Proof of Performance A video channels test that can be configured to run at a scheduled interval and automatically save results Cable Modem A user configured verification of upstream downstream connectivity ranging emulation and quality parameter measur...

Страница 157: ... modem proof or custom limits 1 3 2 Press AutoTest 3 Using the arrow keys select Combo Test 4 Press ENTER 5 Using the arrow keys select Channel Plan Figure 108 AutoTest AutoTests Tab NOTE The limit set parameters you set remain constant for all channel plans and measurement modes Figure 109 AutoTest Configure AutoTest 21128026 R001 DSAM Help User Guide book Page 117 Thursday February 5 2009 2 02 P...

Страница 158: ...gure softkey Video Channels See Configuring AutoTest for Video Chan nels on page 89 Cable Modem See Configuring AutoTest for Cable Modem on page 88 15 Press ENTER NOTE To perform the test without checking the results against limit values select Off If you select Off as the limit plan value no pass fail information is displayed in the test results NOTE Use Regional Preferences on page 43 to specify...

Страница 159: ...s while they are in prog ress To stop the Combo Test press the Stop softkey NOTE To save the results to a file press the Save softkey then follow step 4 through step 13 under Saving Results on page 198 If you chose the wrong limit set before conducting the test press the Limits softkey and select a different limit set to view your test results in relation to a different limit set without rerunning...

Страница 160: ...isplays the results of individual tests for the currently selected channel When a measure ment falls outside the acceptable range an arrow to the right of the numeric value indicates the direction in which the failure occurred An up arrow indicates a measurement over the limit range A down arrow indicates a measurement below the limit range Channel Results A symbol indicating whether the channel p...

Страница 161: ...arrow keys select DOCSIS Summary 3 Press ENTER DOCSIS Status View To display the DOCSIS status view 1 From the DOCSIS summary view use the arrow keys to highlight the DOCSIS channel you wish to view Figure 112 AutoTest Combo AutoTest Video Summary Figure 113 AutoTest Combo AutoTest DOCSIS Summary 21128026 R001 DSAM Help User Guide book Page 121 Thursday February 5 2009 2 02 PM ...

Страница 162: ...ot an installation by performing this test at various locations to determine which components require repair or replacement You can store the test results for later reference Running a Video Channels Test To run a video channels test 1 If necessary configure the limit sets to meet your needs for tap ground block TV cable modem proof or custom limits 1 3 2 Press the AutoTest button 3 Using the arro...

Страница 163: ...ut checking the results against limit values select Off If you select Off as the Limit Plan value no pass fail information is displayed in the test results NOTE Use Regional Preferences on page 43 to specify the type of signal level units and digital performance units to display Use Limit Sets on page 58 to edit limit set parameters to meet your needs Use Other Settings on page 65 to define the be...

Страница 164: ...AutoTest screen Figure 116 AutoTest AutoTest in Progress NOTE The Help system is disabled during all tests while they are in prog ress To stop the test press the Stop softkey NOTE To save the results to a file press the Save softkey then follow step 4 through step 13 under Saving Results on page 198 If you chose the wrong limit set before conducting the test press the Limits softkey and select a d...

Страница 165: ... and the currently selected channel Individual Test Results This area displays the results of individual tests for the currently selected channel When a measure ment falls outside the acceptable range an arrow to the right of the numeric value indicates the direction in which the failure occurred An up arrow indicates a measurement over the limit range A down arrow indicates a measurement below th...

Страница 166: ... necessary configure the limit sets to meet your needs for tap ground block TV cable modem proof or custom limits 1 3 2 Press AutoTest 3 Using the arrow keys select Home Certification 4 Press ENTER Channel Results A symbol indicating whether the channel passed or failed the overall test Table 41 Home Certification Test Results Name Description NOTE Only valid measurements resulting from completed ...

Страница 167: ...13 Using the arrow keys select an option Figure 119 AutoTest Work Folders NOTE Note the name of the folder in the Active Work Folder box If the folder name is incorrect press the Back softkey and select a differ ent folder NOTE To perform the test without checking the results against limit values choice Off If you select Off as the limit plan value no pass fail information is available in the test...

Страница 168: ...press the Configure softkey Video Channels See Configuring AutoTest for Video Chan nels on page 89 Cable Modem See Configuring AutoTest for Cable Modem on page 88 21 Press ENTER 22 Press the Done softkey 23 Press the Start softkey The Certification in Progress screen is displayed NOTE Use Regional Preferences on page 43 to specify the type of signal level units and digital performance units you pr...

Страница 169: ...1 AutoTest Home Certification NOTE To save the results to a file press the Save softkey then follow step 4 through step 13 under Saving Results on page 198 If you chose the wrong limit set before conducting the test press the Limits softkey and select a different limit set to view your test results in relation to a different limit set without rerunning the test 21128026 R001 DSAM Help User Guide b...

Страница 170: ...his area displays the results of individual tests for the currently selected channel When a measure ment falls outside the acceptable range an arrow to the right of the numeric value indicates the direction in which the failure occurred An up arrow indicates a measurement over the limit range A down arrow indicates a measurement below the limit range Channel Results A symbol indicating whether the...

Страница 171: ...ing the arrow keys select DOCSIS Summary 3 Press ENTER Figure 123 AutoTest Home Certification Video Summary N NOTE To save the results to a file press the Save softkey then follow step 4 through step 13 under Saving Results on page 198 Figure 124 AutoTest Home Certification DOCSIS Summary 21128026 R001 DSAM Help User Guide book Page 131 Thursday February 5 2009 2 02 PM ...

Страница 172: ...il for the selected channel 1 Using the arrow keys select the channel you wish to view 2 Press the View softkey 3 Using the arrow keys select Registration N NOTE To save the results to a file press the Save softkey then follow step 4 through step 13 under Saving Results on page 198 Figure 125 AutoTest Home Certification DOCSIS Channel Details N NOTE To save the results to a file press the Save sof...

Страница 173: ...sh to view 2 Press the View softkey 3 Using the arrow keys select VoIPCheck 4 Press ENTER Figure 126 AutoTest Home Certification Registration N NOTE To save the results to a file press the Save softkey then follow step 4 through step 13 under Saving Results on page 198 Figure 127 AutoTest Home Certification VoIPCheck 21128026 R001 DSAM Help User Guide book Page 133 Thursday February 5 2009 2 02 PM...

Страница 174: ...ack TPP software 1 Press the Save softkey 2 Using the arrow keys and the alphanumeric keypad type the file name in the File Name box 3 Press the Save softkey N NOTE To save the results to a file press the Save softkey then follow step 4 through step 13 under Saving Results on page 198 Figure 128 AutoTest Home Certification DOCSIS Status NOTE Only valid measurements resulting from completed tests a...

Страница 175: ...ence Use scheduled tests for 24 Hour AutoTests per FCC AutoTests with C N Hum BER AutoTests that automatically run at a scheduled interval Running a Proof of Performance Test To run a Proof of Performance test 1 If necessary configure the limit sets to meet your needs for tap ground block TV cable modem proof or custom limits 1 3 2 Press AutoTest 3 Using the arrow keys select Proof of Performance ...

Страница 176: ...11 Using the arrow keys select an option 12 Press ENTER 13 Using the arrow keys select Filename to Save to 14 Press ENTER Figure 129 AutoTest Configure Proof of Performance NOTE To perform the test without checking the results against limit values select Off If you select Off as the limit plan value no pass fail information is available in the test results 21128026 R001 DSAM Help User Guide book P...

Страница 177: ...e name in the created folder If you set up a series of scheduled tests the saves the results of each test to a file of the same name with an appended sequential number test1_ test_2 etc in the created folder NOTE The DSAM automatically populates the Ambient Temp field with it s own temperature reading The DSAM automatically appends a C Centigrade or an F Farenheight based on your regional preferen...

Страница 178: ...figure Scheduling screen is displayed 26 Using the arrow keys select Interval Between Tests in minutes 27 Press ENTER 28 Using the numeric keys type the number of minutes between when the meter shuts down after a test and when it starts up for the next test 29 Press ENTER 30 Using the arrow keys select Test Start Time 31 Press ENTER 32 Using the numeric keys type the start time of the first test 3...

Страница 179: ... keys select Test Stop Date 43 Press ENTER 44 Using the numeric keys type the start time of the first test 45 Press ENTER 46 Using the arrow keys and the alphanumeric keypad enter the value 47 Press ENTER 48 Press the Start softkey If Location Settings is enabled through TPP the Edit Location Settings screen is displayed 49 Using the arrow keys select the parameter you want to edit 50 Press ENTER ...

Страница 180: ...t a new file name Once the first test in a series is complete the meter shuts down until the next scheduled test If you attempt to power up the meter while it is running a series of Proof of Performance tests it prompts you to cancel the test or resume by powering the meter down until the next scheduled test After the last scheduled test the meter does not power down Figure 132 AutoTest AutoTest i...

Страница 181: ...view your test results in relation to a different limit set without rerunning the test Figure 134 AutoTest Video AutoTest Results Table 43 Home Certification Test Results Name Description Overall Results This area displays the overall pass fail results for the test the limit set applied if applicable and the currently selected channel Overall Results Overall Channel Results Individual Test Results...

Страница 182: ...tside the acceptable range an arrow to the right of the numeric value indicates the direction in which the failure occurred An up arrow indicates a measurement over the limit range A down arrow indicates a measurement below the limit range Channel Results A symbol indicating whether the channel passed or failed the overall test When a measurement fails an arrow to the right of the numeric value in...

Страница 183: ... NOTE The limit set parameters you set remain constant for all channel plans and measurement modes NOTE To perform the test without checking the results against limit values select Off If you select Off as the limit plan value no pass fail information is available in the test results NOTE Use Regional Preferences on page 43 to specify the type of signal level units and digital performance units yo...

Страница 184: ...uring AutoTest for Video Chan nels on page 89 Cable Modem See Configuring AutoTest for Cable Modem on page 88 14 Press ENTER 15 Press the Start softkey The results appear on the DOCSIS AutoTest screen Figure 135 AutoTest DOCSIS in Progress NOTE The Help system on this meter is disabled during all tests while they are in progress To stop the test press the STOP softkey 21128026 R001 DSAM Help User ...

Страница 185: ...ress the Limits softkey and select a different limit set to view your test results in relation to a different limit set without rerunning the test Figure 137 AutoTest Video AutoTest Results Table 44 DOCSIS AutoTest Results Name Description Overall Results This area displays the overall pass fail results for the test the limit set applied if applicable and the currently selected channel Overall Res...

Страница 186: ... which the failure occurred An up arrow indicates a measurement over the limit range A down arrow indicates a measurement below the limit range Channel Results A symbol indicating whether the channel passed or failed the overall test When a measurement fails an arrow to the right of the numeric value indicates the direction in which the failure occurred An up arrow indicates a measurement over the...

Страница 187: ...Help User Guide Rev 001 147 Figure 138 AutoTest Cable Modem Test DOCSIS Channel Status Successful Figure 139 AutoTest Cable Modem Test DOCSIS Channel Status Error 21128026 R001 DSAM Help User Guide book Page 147 Thursday February 5 2009 2 02 PM ...

Страница 188: ...Chapter 7 AutoTest Mode AutoTests Tab 148 DSAM Help User Guide Rev 001 21128026 R001 DSAM Help User Guide book Page 148 Thursday February 5 2009 2 02 PM ...

Страница 189: ...on page 150 Level on page 151 MiniScan on page 158 Full Scan on page 161 Tilt on page 168 Constellation on page 174 FDR on page 180 Return QAM Generator on page 184 QAM Ingress on page 187 Hum Analysis on page 190 DQI on page 192 Return Loopback on page 194 Reading Measurement Graphs on page 196 Saving Results on page 198 21128026 R001 DSAM Help User Guide book Page 149 Thursday February 5 2009 2 ...

Страница 190: ...d of the demodulated digital Quadrature Amplitude Modulation QAM type 64 QAM 128 QAM or 256 QAM signal prior to error correction This option is only available on specific DSAM models FDR Provides a means of characterizing impedance mismatches in the home wiring and is used to detect potential faults that could disrupt signal transmission This mode requires an LST 1700 Return QAM Generator DSAM is ...

Страница 191: ...n You can tune level measurements by frequency or channel Frequency Tuning measures signal levels at one specific frequency and signal levels can be measured at any discrete frequency within the tuning range Channel Tuning measures the signal levels of carriers within a channel and carrier levels can be checked in relation to user configured limit sets In each tuning mode level measurements are co...

Страница 192: ...eys to highlight Auto Reference Shift 9 then press the ENTER key to automati cally view measurement results in the best reference setting Channel Tuning With Channel Tuning the signal level measurements are displayed on a graph and as a numeric value for each carrier within the channel Relationships between carriers such as the delta between video and audio levels are automatically calculated and ...

Страница 193: ...h for the best viewing or press the View softkey and use the arrow keys to highlight Auto Reference Shift 9 then press the ENTER key to automatically view measurement results in the best reference setting Running a Level Measurement To run a level measurement 1 Press Measure 2 Press the Basic softkey 3 Using the arrow keys select Level 4 Press ENTER Figure 141 Measure Mode Basic Tab Figure 142 Mea...

Страница 194: ...me modes High Sensitivity Indicator This icon is displayed if QAM Sensitivity is set to high on the Other Settings configuration screen Refer to Other Settings Parameters on page 66 NOTE To save the results to a file refer to Saving Results on page 198 If you chose the wrong limit set before conducting the test press the Limits softkey and select a different limit set to view your test results in ...

Страница 195: ...128 4 additional purchase required Deep interleaver channels such as 128 4 require DSAM model 2600 3600 or 6000 If you are using a different model only the level and MER appear Errored Seconds The number of one second intervals in which the DSAM detected post FEC bit errors since acquiring QAM lock NOTE If the displayed interleaver depth is greater than the interleaver depth supported the BER valu...

Страница 196: ...n This area displays the channel s primary audio frequency and level as well as the delta between the video and audio levels Secondary Audio Information This area if broadcast displays the channel s secondary audio frequency and level as well as the delta between the video and audio levels C N Carrier to noise ratio in decibels if the hardware supports it Figure 144 Measure Mode Level analog chann...

Страница 197: ...raph 5 dB div or 10 dB div Enables you to adjust the vertical resolution of the graph for the best viewing DQI Enables you to view a time elapsed view of DQI measurements on digital channels only if the hardware supports it MiniScan Displays the MiniScan screen Tilt Displays the Tilt screen Full Scan Displays the Full Scan screen Constellation Displays the Constellation screen QAM Ingress Displays...

Страница 198: ...ference Running a MiniScan To run a MiniScan 1 Press Measure 2 Press the Basic softkey 3 Using the arrow keys select MiniScan 4 Press ENTER NOTE MiniScan measurement channels are user defined and correspond to a single Channel Plan You can select up to twelve channels within each Channel Plan See Configuring Channels for MiniScan on page 84 for more information If no channels are enabled for MiniS...

Страница 199: ...nd the height of the bar represent the signal level of that channel Graph Information Bar This bar displays the highest and lowest frequencies of the MiniScan channels NOTE To save the results to a file refer to Saving Results on page 198 If you chose the wrong limit set before conducting the test press the Limits softkey and select a different limit set to view your test results in relation to a ...

Страница 200: ...scan 5 Press the Done softkey Viewing MiniScan Results To view MiniScan results in different ways 1 Press the View softkey 2 Using the arrow keys select one of the following options Auto Reference Shift 9 Enables you to automatically view measurement results in the best reference setting on the graph Figure 147 Measure Mode MiniScan Channels NOTE You can also select channels for MiniScan from Conf...

Страница 201: ...e Shift 8 Suspends measurement updates 3 Press ENTER Full Scan Full Scan measurement displays the carrier levels of the entire channel plan up to 999 channels at a time and displays the audio and video levels of a carrier on a single screen You can view results in graph or table form and results can be measured in relation to user defined limit sets Results can also be stored for later reference R...

Страница 202: ...d signal level units as specified in Regional Pref erences on page 43 Figure 148 Measure Mode Basic Tab NOTE To save the results to a file refer to Saving Results on page 198 If you chose the wrong limit set before conducting the test press the Limits softkey and select a different limit set to view your test results in relation to a different limit set without rerunning the test Figure 149 Measur...

Страница 203: ... area displays the following information for the current channel Channel type Single TV TV scrambled Dual Digital or DOCSIS Carrier frequency in MHz and measured signal level for the channel Audio icon audio carrier frequency in MHz and the delta value in dB between the video and audio levels only if audio level measurement is enabled If the channel is of dual type the second audio level value rea...

Страница 204: ... measurements for all the channels Both views also display all signal level measurements in the current user selected signal level units as specified in Regional Pref erences on page 43 The Full Scan Table view displays each available channel number their video level readings and available first and second video audio deltas The highlighted channel in the Table view corresponds to the marked chann...

Страница 205: ...on if applicable High sensitivity indicator Setting the Full Scan Speed To set the scan speed 1 Press the Settings softkey 2 Using the arrow keys select Normal Scan or Fast Scan 3 Press ENTER Figure 150 Measure Mode Full Scan Table Measurement Information Area NOTE For information about how to read the graph see Reading Mea surement Graphs on page 196 NOTE A normal scan spends more time analyzing ...

Страница 206: ...Channel Plans 3 Press ENTER 4 Press the Plan softkey 5 Using the arrow keys select a channel plan 6 Press the Done softkey 7 Press the Plan softkey 8 Using the arrow keys select Enabled Channels 9 Press ENTER Figure 151 Measure Mode Downstream Plans NOTE The channel plan must include at least one channel 21128026 R001 DSAM Help User Guide book Page 166 Thursday February 5 2009 2 02 PM ...

Страница 207: ...k so the delta portion is clearly displayed To enable audio carrier level measurement 1 Press the Settings softkey 2 Using the arrow keys select Show Audio 3 Press ENTER View Menu To access different functions and shortcuts to other tests 1 Press the View softkey 2 Using the arrow keys select one of the following options Auto Reference Shift 9 Enables you to automatically view measurement results ...

Страница 208: ...Tilt Tilt is transmission loss in a coaxial cable Transmission loss increases in proportion to the square root of frequency thus affecting the tilt As displayed by the DSAM Tilt measurement displays levels across a band of channels Tilt is displayed as the slope between lowest to highest channel Levels for each intermediate channel should reach the line A marker provides channel number channel typ...

Страница 209: ... to a file refer to Saving Results on page 198 If no channels are enabled for tilt in the channel plan an error mes sage is displayed If you chose the wrong limit set before conducting the test press the Limits softkey and select a different limit set to view your test results in relation to a different limit set without rerunning the test 21128026 R001 DSAM Help User Guide book Page 169 Thursday ...

Страница 210: ...sents the signal level of that channel A narrow bar width represents a single TV or dual channel type A wide bar width represents a digital or DOCSIS channel type Graph Information Bar This bar displays the highest and lowest frequencies of the tilt scan channels Marker Information Area This area is located below the graph and displays the following Channel number Carrier frequency in MHz Measured...

Страница 211: ...ow keys select Tilt Channels 7 Press ENTER NOTE JDSU does not recommend comparing tilt between analog and dig ital carriers This practice could result in artificial tilt NOTE Tilt measurement channels are user defined and correspond to the current channel plan You can select up to twelve channels within each channel plan A minimum of two channels are required to per form a tilt test Figure 155 Mea...

Страница 212: ...rrow keys 2 Press the Markers softkey 3 Using the arrow keys select Low If the marker is on a channel that is the high pilot or is greater in frequency than the high pilot Low is disabled 4 Press ENTER 5 To move the marker horizontally to the high pilot channel use the left and right arrow keys 6 Press the Markers softkey 7 Using the arrow keys select High Figure 156 Measure Mode Select Tilt Chann...

Страница 213: ...the arrow keys to move the marker to the preferred channel then highlight this option from the View menu Full Scan Displays the Full Scan screen Pause Shift 8 Suspends measurement updates Use the left and right arrow keys to move the marker horizon tally to the previous or to the next channel You can also use the keypad to type the channel number NOTE If a digital channel is selected as either the...

Страница 214: ...on measurement also displays Channel number Channel frequency level information Modulation Error Ratio MER Bit Error Ratio BER Pre and Post data Identifying a specific constellation pattern on the grid and associating this pattern with a specific type of impairment quickly leads to trouble shooting options that minimize or eliminate the impairment Running a Constellation Test To run a Constellatio...

Страница 215: ...ly below the channel number is the channel frequency and channel level informa tion Figure 157 Measurement Mode Basic Tab Constellation N NOTE To save the results to a file refer to Saving Results on page 198 Only digital and DOCSIS channels defined in the downstream for ward path channel plan are available for Constellation testing Figure 158 Measure Mode Constellation Measurement Information Are...

Страница 216: ...ymbols on the constellation grid should be well within the grid lines decision boundaries When the dots approach or exceed these boundaries significant errors are occurring in the transmission of the signal Impairment types are described as follows Thermal system Noise Thermal noise impairments cause the dots on the graph to spread out toward the grid lines decision boundaries indicating significa...

Страница 217: ...s best seen on the grid without the use of the zoom feature Coherent Interference Coherent interference impairments such as CTB CSO and spurs cause the dots on the graph to cluster with an empty space in the middle Figure 159 Constellation Thermal system Noise Figure 160 Constellation Phase Noise Figure 161 Constellation Coherent Interface 21128026 R001 DSAM Help User Guide book Page 177 Thursday ...

Страница 218: ... a few pixels to be thrown from the center Editing the Channel Plan To edit the channel plan see Downstream Plans on page 78 Setting the Sample Refresh Rate To set the number of samples to be processed before refreshing the screen 1 Press the Settings softkey 2 Using the arrow keys select Samples 3 Press ENTER 4 Using the arrow keys select an option 5 Press ENTER Figure 162 Constellation Gain Comp...

Страница 219: ...ure Mode Constellation Refresh Rates NOTE In 64 QAM the following zoom levels are available for viewing Zoom Level 1 8x8 Zoom Level 2 4x4 Zoom Level 3 2x2 In 128 QAM and 256 QAM the following zoom levels are available for viewing Zoom Level 1 16x16 Zoom Level 2 8x8 Zoom Level 3 4x4 Zoom Level 4 2x2 NOTE Within each zoom level you can navigate to the specific target quadrant of interest to focus th...

Страница 220: ... DQI measurements on digital channels only if the hardware supports it QAM Ingress Displays the QAM Ingress screen 3 Press ENTER FDR A frequency domain reflectivity FDR test displays the location and severity of faults and breaks in a length of cable This enables you to replace or repair faulty cables and components To use FDR you must have a JDS Uniphase Corporation LST 1700 Signal Transmitter wh...

Страница 221: ...c tion to pinpoint its distance and amplitude The corresponding information is displayed directly below the graph Understanding FDR Results The FDR graphs distance on the X axis and amplitude on the Y axis as the LST 1700 transmits signals down the cable and looks for RF energy being reflected back Reflections occur when there is a change in impedance possibly caused by such things as cable damage...

Страница 222: ... and is usually specified by the manufacturer Max Precision The maximum precision is the cable attenuation Resolution of Measurement The resolution of measurement determines the number of data points maximum distance of and distance resolution accuracy of the measurement This setting affects the time per measurement cycle with LOW being fast least accurate and ULTRA being slow most accurate Valid ...

Страница 223: ...graph Progress Bar Displays the status of the measurement cycle Status This area consists of the following Horizontal status dBRL Zoom level Cable compensation status ON or OFF Using Zoom To use the zoom feature 1 After scanning a few times press Shift 8 to pause the scan 2 Press the Zoom softkey 3 Using the arrow keys select Zoom to zoom in one level Zoom to zoom out one level or Zoom 1x to reset...

Страница 224: ...nables you to adjust the vertical resolution of the graph for the best viewing Pause Shift 8 Suspends measurement updates 3 Press ENTER Return QAM Generator DSAM is equipped with this mode so you can evaluate problems in the network arising due to phase and amplitude distortions Generally these problems need attention to take advantage of the higher capacity of the 16 QAM or 64 QAM Figure 167 Conf...

Страница 225: ...r To use the return QAM generator 1 Press Measure 2 Press the Basic softkey 3 Using the arrow keys select Return QAM Generator 4 Press ENTER Enable Disable Transmit To enable disable transmit 1 To disable transmit press the Disable Tx softkey The softkey turns to Enable Tx 2 To enable transmit press the Enable Tx softkey The softkey turns to Disable Tx Changing the Mod Type To change the mod type ...

Страница 226: ...elect one of the following 1 28 Msym s 2 56 Msym s 3 84 Msym s 5 12 Msym s 3 Press ENTER Understanding Return QAM Generator Results Measurement Information Area This area displays information about the current channel Information that is displayed in this area includes NOTE The symbol rate is only configurable if you are in a QAM mode Figure 169 Measure Mode Return QAM Generator 21128026 R001 DSAM...

Страница 227: ...plays the Upstream Spectrum measurement mode Downstream Spectrum Displays the Downstream Spectrum measurement mode 3 Press ENTER QAM Ingress The QAM Ingress mode is a line plot which graphs signal error versus frequency of QAM signals This mode supports Ingress Under Carrier for 64 QAM and 256 QAM signals Additional purchase required The QAM Ingress mode enables you to View a graphic depiction of ...

Страница 228: ...long with the MER and BER data Using QAM Ingress To use QAM ingress 1 Press Measure 2 Press the Basic softkey 3 Using the arrow keys select QAM Ingress 4 Press ENTER Understanding QAM Ingress Results Figure 170 Measure Mode Basic Tab QAM Ingress Figure 171 Measure Mode QAM Ingress Measurement Information Area Graph Graph Information Bar Marker Status Area 21128026 R001 DSAM Help User Guide book Pa...

Страница 229: ...r This area consists of the marker name A or B marker frequency in MHz and measured signal level for the frequencies which the markers are on The black square around the letter A or B below the graph displays the active marker The delta value in dB between the markers is also displayed View Menu To access different functions and shortcuts to other tests 1 Press the View softkey 2 Using the arrow k...

Страница 230: ...s move the marker on the grid 3 Press ENTER Hum Analysis Hum is the undesirable modulation of the television video carrier by power line frequencies and harmonics or other low frequency distur bances FCC Limit 1 kHz The Hum mode displays the total amount of hum for an analog channel over a 1 kHz span An evenly spaced breakdown of hum percentages is displayed in a graph with bars at either a 50 or ...

Страница 231: ...ing the test press the Limits softkey and select a different limit set to view your test results in relation to a different limit set without rerunning the test Figure 173 Measure Mode Hum Analysis Frequency and Frequency Hum Total Hum for Bandwidth Measurement Information Area NOTE For information about how to read the graph see Reading Mea surement Graphs on page 196 21128026 R001 DSAM Help User...

Страница 232: ...page 79 DQI Digital Quality Index DQI additional purchase required for certain models is a real time measurement that detects intermittent impair ments within a downstream digital QAM carrier The DQI measurement uses error magnitude information from the output of the QAM demodulator within DSAM including error magni tudes that do not result in either pre or post BER errors Measurement response is ...

Страница 233: ...nnel number is the channel frequency and channel level information Figure 174 Measure Mode Basic Tab DQI Figure 175 Measure Mode DQI Measurement Information Area DQI Min Graph Information Bar NOTE For information about how to read the graph see Reading Mea surement Graphs on page 196 To save the results to a file refer to Saving Results on page 198 To open a saved measurement file see Opening a Sa...

Страница 234: ...r tests 1 Press the View softkey 2 Using the arrow keys select one of the following options Single Channel Displays measurements one channel at a time First use the arrow keys to move the marker to the preferred channel then highlight this option from the View menu MiniScan Displays the MiniScan screen Tilt Displays the Tilt screen Full Scan Displays the Full Scan screen Constellation Displays the...

Страница 235: ...valuable information such as gain loss roll off or frequency response Performing Return Loopback To perform return loopback 1 Press Measure 2 Press the Basic softkey 3 Using the arrow keys select Return Loopback 4 Press ENTER Figure 176 Measure Return Loopback Figure 177 Measure Mode Loopback 21128026 R001 DSAM Help User Guide book Page 195 Thursday February 5 2009 2 02 PM ...

Страница 236: ...creen is displayed 4 Using the arrow keys and numeric keypad enter a transmit level between 8 and 58 5 Press the OK softkey Performing a Transmit Reference To Perform a Transmit Reference 1 Connect a short cable between port 1 and port 2 2 Press the Settings softkey 3 Using the arrow keys select Reference 4 Press ENTER 5 Press the Reference softkey Reading Measurement Graphs Reading Bar Graphs Bar...

Страница 237: ...te diagonal hash lines indicating measurement failure in relation to the selected limit set Reading Line Graphs Bar graphs are comprised of up to three contrasting shades White The background color of the graph when limit check is disabled Also the background area within limit boundaries when limit check is enabled Black White Diagonal Hash Lines The area above and below the configured limit bound...

Страница 238: ...ults and manage saved file folders To save your results 1 Press the File softkey 2 Using the arrow keys select Save 3 Press ENTER Figure 179 Measure DQI Results NOTE To freeze any live fluctuating data pause the meter by pressing Shift 8 before you save your results to a file 21128026 R001 DSAM Help User Guide book Page 198 Thursday February 5 2009 2 02 PM ...

Страница 239: ...n Settings is enabled through TPP the Edit Location Settings screen is displayed 6 Using the arrow keys select the parameter you want to edit 7 Press ENTER OR 8 To use the default location settings press the Default softkey 9 Press the OK softkey OR Figure 180 Save a File screen Figure 181 AutoTest Edit Location Settings 21128026 R001 DSAM Help User Guide book Page 199 Thursday February 5 2009 2 0...

Страница 240: ...key 2 Using the arrow keys select New 3 Press ENTER 4 Using the alphanumeric keypad enter the folder name 5 Press the OK softkey Changing the Default Folder To change the default folder 1 Press the Folder softkey 2 Using the arrow keys select Change 3 Press ENTER 4 Using the arrow keys select a different folder 5 Press ENTER 6 Press the OK softkey Figure 182 Create a New Work Folder screen 2112802...

Страница 241: ...row keys select Open 3 Press ENTER 4 Using the arrow keys select the folder that contains the file you want to open 5 Press the Open softkey 6 Using the arrow keys select the file you want to open 7 Press the Open softkey NOTE When you attempt to open a file within a mode only saved files of that mode type are displayed in the file folder 21128026 R001 DSAM Help User Guide book Page 201 Thursday F...

Страница 242: ...Chapter 8 Measure Mode Basic Tab Saving Results 202 DSAM Help User Guide Rev 001 21128026 R001 DSAM Help User Guide book Page 202 Thursday February 5 2009 2 02 PM ...

Страница 243: ...e Measure Mode Service tab functionality Topics discussed in this chapter are as follows Service Measurement Modes on page 204 DOCSIS on page 204 Ethernet on page 225 CM Diagnostics Page on page 232 VoIP on page 234 21128026 R001 DSAM Help User Guide book Page 203 Thursday February 5 2009 2 02 PM ...

Страница 244: ...gh the Ethernet Additional purchase required CM Diagnostics Page Displays a cable modem s internal web page Additional purchase required VoIP Enables you to measure voice quality of your PacketCable VoIP networks and gateway internet protocol IP phones and other end point devices Additional purchase required DOCSIS Introduction The DOCSIS Data Over Cable Service Interface Specification test analyz...

Страница 245: ...iguring DSAM for DOCSIS Tests The first thing to check before you run a DOCSIS test is to make sure the CM MAC Address has been provisioned to your Cable Modem Terminal System CMTS To configure DSAM for DOCSIS tests 1 Press Configure 2 Press the Measure softkey 3 Using the arrow keys select the DOCSIS Configuration option 4 Press ENTER Figure 184 Configure Mode Other Settings 21128026 R001 DSAM He...

Страница 246: ...tialization If the DOCSIS Configu ration field is set to Registration with CPE Initialization the DOCSIS results screen is displayed after you run a DOCSIS test In addition you can run data service tests 6 Verify that the value in the DOCSIS Version field matches the CMTS you are testing 7 Verify that the value in the DOCSIS Security Mode field matches the security mode for the CMTS you are testin...

Страница 247: ...ng MAC address as the default press the Default softkey Figure 185 Measure Mode Select a DOCSIS Channel to Test NOTE Only DOCSIS channels defined in the downstream forward path channel plan are available for DOCSIS measurement testing Figure 186 Measure Mode Cable Modem MAC Address 21128026 R001 DSAM Help User Guide book Page 207 Thursday February 5 2009 2 02 PM ...

Страница 248: ...s not required if the DOCSIS Configuration is set to Range Only See Configuring DSAM for DOCSIS Tests on page 205 NOTE For instructions on how to save measurement results see Saving Results on page 198 For detailed information about what happens in the different stages of the DOCSIS test see DOCSIS Test Steps on page 209 Figure 187 Measure Mode DOCSIS Test in Progress 21128026 R001 DSAM Help User ...

Страница 249: ...rent limit set without rerunning the test Use the Edit option to edit limit set parameters for tap ground block TV cable modem proof or custom limits 1 through 3 The limit set parameters you set remain constant for all channel plans and measurement modes When limit check is enabled an overall pass or fail symbol and the name of the selected limit set are displayed directly above the results When a...

Страница 250: ...DSAM captures the system timing SYNCs upstream channel information UCDs and time slots MAPs and displays the following text next to the second box Acquiring upstream channel data Upstream channel data acquired Step 3 During step 3 of the DOCSIS Test process DSAM establishes the optimum cable modem transmitter output power level through a process defined in the DOCSIS specification and displays the...

Страница 251: ...rd error correction FEC You can view the range measurement data in relation to user config ured limits to determine the pass fail status of the DOCSIS channel Values are continuously updated Only valid measurements and parameters appear When incomplete measurements occur due to system errors or a manual termination of the measurement procedure dashes appear instead of invalid numeric values When l...

Страница 252: ... or down arrow head is displayed to the right of the measurement indicating that the value is too high or too low Numeric values that are out of range appear in bold LEVEL Headroom LEVEL Headroom is the difference between the maximum output possible 58 dBmV for QPSK or 55 dBmV for 16 QAM and the LEVEL transmitted Upon successful ranging with the network CMTS DSAM displays the resultant upstream tr...

Страница 253: ... Headroom value is 5 dB EXAMPLE 3 You successfully range with the CMTS Results show that the CMTS instructed the DSAM to transmit a QSPK carrier and the suc cessful transmit level is 42 dBmV The LEVEL Headroom shown is the maximum specified level for QSPK of 58 42 16 dB Since 16 dB is greater than the 5 dB limit the measurement passes Figure 191 Measure Mode Downstream Plans NOTE See Editing a Cha...

Страница 254: ... Registration Results During DOCSIS the meter performs registration and displays the internet protocol IP addresses of the dynamic host configuration protocol DHCP trivial file transfer protocol TFTP and time of day TOD servers and gateway The registration test also provides the modems internet protocol IP address configuration file and Service IDentifier SID To view registration results 1 Press t...

Страница 255: ...cket loss round trip upstream and downstream and upstream signal to noise ratio SNR results NOTE When using a customer s CM MAC address the config file name may indicate the grade of service the customer gets A file name containing default generally means that the CM MAC address used for the test is not provisioned Figure 193 Measure Mode DOCSIS Throughput Throughput Graphs NOTE Since Throughput c...

Страница 256: ...ream and downstream paths as follows Round trip or loop sent packets lost packets and lost ratio Upstream sent packets lost packets and lost ratio Downstream sent packets lost packets and lost ratio Viewing Packet Loss Results with SNMP Community Strings A DSAM can receive up to four SNMP read community strings through synchronization with JDS Uniphase Corporation Test Pro ductivity Pack TPP softw...

Страница 257: ... between pings It also displays ping result data including Round trip time Time to live TTL NOTE If your upstream and downstream packet loss and upstream SNR test results are consistently displayed as dashes consult your JDS Uniphase Corporation Test Productivity Pack TPP adminis trator about the accuracy of the SNMP strings you have received Your meter requires accurate SNMP read community string...

Страница 258: ...Using the arrow keys select the IP address you want to ping 7 Press ENTER 8 Using the arrow keys select Packet Size bytes 9 Press ENTER 10 Using the arrow keys select the packet size you want to send 11 Press ENTER Figure 196 Measure Mode DOCSIS Ping Test NOTE To add modify or delete an IP address see Adding Ping IP Addresses on page 220 Modifying Ping IP Addresses on page 220 or Deleting Ping IP ...

Страница 259: ...list The status box lower right corner of the screen displays the reply statistics including Number of pings sent Average return time Number of pings lost Ratio of lost to sent pings Ping data is continuously updated NOTE Since ping time can only be measured after the meter has success fully ranged and registered with the CMTS ping results are not available if Ranging Only is set in the DOCSIS Con...

Страница 260: ...ey Modifying Ping IP Addresses To modify an IP address 1 Using the arrow keys select IP Address 2 Press ENTER Table 45 Ping Parameters Name Description IP Address Select from a list of up to ten of the most recently used IP addresses Packet Size bytes Options are 64 128 256 512 1024 or 1518 in bytes The default value is 64 bytes Time Between Pings Options are 0 ms 10 ms 25 ms 50 ms 100 ms 1 sec 2 ...

Страница 261: ... 7 Press ENTER Viewing VoIPCheck Results The VoIPCheck CMTS Loop test additional purchase required displays VoIP call statistics without MTA provisioning The VoIPCheck CMTS Loop test is a continuous test During a VoIPCheck packet loss jitter delay R Value and MOS values are displayed in table format NOTE The last edited IP address is placed on the top of the option list NOTE Since you can only run...

Страница 262: ...y Packet loss occurs when packets are lost on a network when packets are delayed too long or when packets arrive out of order Packet loss can cause reconstructed speech to sound choppy and distorted Jitter Jitter occurs when packets are sent at equal intervals but received at uneven time intervals this can cause audible pops clicks and a greater delay of audio communications Gateways compensate fo...

Страница 263: ... is 0 0 to 5 0 MOS is computed using the packet loss jitter and delay results R Value The R Value number represents a quantitative measurement value based solely on the packet loss jitter and delay measurements The value range for R Value is 0 to 93 R Value is computed using the packet loss jitter and delay results Viewing VoIPCheck Segmentation Results The VoIPCheck Segmentation test is a continu...

Страница 264: ... value of continuous live VoIP segmentation Extreme Displays the highest or lowest values detected during VoIP segmentation Packet Stats Displays packet loss delay and jitter values Quality Displays continuous MOS and R Value values 3 Press ENTER Figure 200 Measure Mode DOCSIS Quality view MOS R value NOTE If necessary you user can troubleshoot an installation by perform ing these tests at various...

Страница 265: ...d trip time time to live TTL packets sent and lost average round trip time and loss to sent ratio See Running Ping Results on page 228 Configuring DSAM for Ethernet Tests Typically an Ethernet test is conducted using the DHCP server on the network to assign an IP address to DSAM If the network is expecting a specific fixed IP address no DHCP assignment available you must configure the Ethernet net...

Страница 266: ...ernet 4 Press ENTER When the IP connection activity is complete the Bind Results screen is displayed with detailed results NOTE To save the results to a file refer to Saving Results on page 198 You can terminate the Ethernet test process at any time by pressing the Cancel softkey Figure 201 Measure Mode Service Tab Ethernet 21128026 R001 DSAM Help User Guide book Page 226 Thursday February 5 2009 ...

Страница 267: ...E MAC Address Displaying Throughput Results The Throughput view displays Ethernet throughput upstream and downstream test results To display the Throughput view 1 Press the View softkey 2 Using the arrow keys select Throughput 3 Press ENTER Figure 202 Measure Bind Results Network Assignments Meter Information Figure 203 Measure Mode Ethernet Throughput Graphs 21128026 R001 DSAM Help User Guide boo...

Страница 268: ...ptured and continuously updated To display Packet Loss results 1 Press the View softkey 2 Using the arrow keys select Packet Loss 3 Press ENTER Running Ping Results Ping results verify the overall downstream upstream communication route and connectivity of a DSAM within the cable system The Ping Test screen enables you to select the IP address packet size and time between pings It also displays pi...

Страница 269: ... Size bytes 9 Press ENTER 10 Using the arrow keys select the packet size you want to send 11 Press ENTER 12 Using the arrow keys select the Time Between Pings option 13 Press ENTER 14 Using the arrow keys select the time span between pings Figure 205 Measure Mode Ethernet Ping Test NOTE To add modify or delete an IP address see Adding Ping IP Addresses on page 231 Modifying Ping IP Addresses on pa...

Страница 270: ...umber of pings lost Ratio of lost to sent pings Ping data is continuously updated Restoring Ping Test Defaults To restore the default values for Packet Size and Time Between Pings Figure 206 Measure Mode Ethernet Ping Test Table 46 Ping Test Parameters Name Description IP Address Select from a list of up to ten of the most recently used IP addresses Packet Size bytes Options are 64 128 256 512 102...

Страница 271: ...Ping IP Addresses To modify an IP address 1 Using the arrow keys select the IP Address option 2 Press ENTER 3 Using the arrow keys select the IP address you want to edit 4 Press ENTER 5 Press the Settings softkey 6 Using the arrow keys select Modify IP 7 Press ENTER 8 Using the arrow keys and the alphanumeric keypad edit the IP address 9 Press the OK softkey NOTE The ten stored IP Addresses are no...

Страница 272: ...dditional purchase required is based on the Ethernet network configuration The cable modem should be connected to the RF network The DSAM must be connected to the cable modem through an Ethernet port The CM Diagnostics screen should display the cable modem s internal web page This indicates that the cable modem is connected to your local CMTS and functioning properly Testing CM Diagnostics To test...

Страница 273: ...ess ENTER Navigating the Cable Modem Information System Screen To navigate the Cable Modem Information System screen 1 To scroll up press the Up softkey OR Figure 207 Measure Mode Service Tab CM Diagnostics Figure 208 Measure Mode Cable Modem Information System 21128026 R001 DSAM Help User Guide book Page 233 Thursday February 5 2009 2 02 PM ...

Страница 274: ...ble multimedia terminal interfaces and the Multimedia Terminal Adapter MTA has been successfully initialized you are provided the ability to place and receive a phone call with the meter After a call is placed or received test results are displayed NOTE VoIP test can only be initiated after the DSAM has successfully reg istered with the CMTS and the MTA has successfully initialized If Ranging Only...

Страница 275: ... Test To run a VoIP test 1 Press Measure 2 Press the Service softkey 3 Using the arrow keys select VoIP 4 Press ENTER NOTE If no enabled downstream DOCSIS channels are available in the channel plan during a VoIP Test a warning is displayed to indicate there is no DOCSIS channel enabled in the channel plan Press the OK softkey then select a downstream plan with at least one enabled DOCSIS channel F...

Страница 276: ...ss the Next softkey 7 Using the arrow keys and the alphanumeric keypad enter or select the roving MAC address 8 Press the Next softkey OR 9 To use the default roving MAC address press the Default softkey 10 Press the Next softkey Figure 210 Measure Mode VoIP Channel to Test Figure 211 Measure Mode Cable Modem MAC Address 21128026 R001 DSAM Help User Guide book Page 236 Thursday February 5 2009 2 0...

Страница 277: ...ftkey OR 13 To use the default MTA MAC address press the Default softkey 14 Press the Start softkey NOTE The roving MAC address must be recognized by your CMTS to achieve VoIP ranging Figure 212 Measure Mode MTA MAC Address NOTE This address must be recognized by your CMTS to achieve VoIP measurement 21128026 R001 DSAM Help User Guide book Page 237 Thursday February 5 2009 2 02 PM ...

Страница 278: ...ss the View softkey 16 Using the arrow keys select Call 17 Press ENTER Figure 213 Measure Mode Test in Progress NOTE For instructions on how to save measurement results see Saving Results on page 198 Figure 214 Measure Mode VoIP Ready 21128026 R001 DSAM Help User Guide book Page 238 Thursday February 5 2009 2 02 PM ...

Страница 279: ...he OK softkey If the other party accepts the call DSAM establishes a conversa tion 20 Press the View softkey Figure 215 Measure Mode VoIP Telephone Number NOTE A list of the most recently used phone numbers is available from the drop down list box Figure 216 Measure Mode VoIP Ongoing Call 21128026 R001 DSAM Help User Guide book Page 239 Thursday February 5 2009 2 02 PM ...

Страница 280: ...s of the R Value Listening R Value Conversational MOS Listening and MOS Conversational values View Data Displays the Current Maximum and Average results of the Local and Remote packet loss jitter ms and Delay ms values Restart Restarts the VoIP initialization process 22 Press ENTER Accepting a Call When there is an incoming call the DSAM displays Incoming Call with Accept and Ignore softkeys Figur...

Страница 281: ...s 1 Using the arrow keys select a set of measurement limits Tap Ground Block TV Cable Modem Proof or custom limits 1 3 OR 2 To access the Limit Sets screen select Edit This allows you to edit limit set parameters to meet your needs 3 Using the arrow keys select a menu option 4 Press ENTER Figure 218 Measure Mode VoIP Incoming Call NOTE After you press the Accept or Ignore softkey the original soft...

Страница 282: ...ional MOS Listening and MOS Conversational values are computed using the packet loss jitter and delay results These values are intended to give a quantitative assess ment of the call quality The VoIP MOS screen enables you to place and receive calls and measure these values To view VoIP MOS results 1 Press the View softkey 2 Using the arrow keys select Call 3 Press ENTER NOTE The limit set paramet...

Страница 283: ...e call DSAM establishes a conversa tion 6 Press the View softkey 7 Using the arrow keys select View MOS 8 Press ENTER VoIP MOS Definitions See Measurement Information Area on page 222 for the following definitions Packet Loss Delay Jitter MOS and R Value Figure 220 Measure Mode VoIP Ongoing Call Figure 221 Measure Mode VoIP Ready 21128026 R001 DSAM Help User Guide book Page 243 Thursday February 5...

Страница 284: ...eceive calls and measure packet loss delay and jitter To view VoIP data results 1 Press the View softkey 2 Using the arrow keys select Call 3 Press ENTER 4 Using the arrow keys and the alphanumeric keypad enter or select a telephone number 5 Press the OK softkey Figure 222 Measure Mode VoIP Telephone Number Figure 223 Measure Mode VoIP Ongoing Call 21128026 R001 DSAM Help User Guide book Page 244 ...

Страница 285: ...n 6 Press the View softkey 7 Using the arrow keys select View Data 8 Press ENTER View Data Definitions See Measurement Information Area on page 222 for the following definitions Packet Loss Delay Jitter MOS and R Value Figure 224 Measure Mode VoIP Ongoing Call 21128026 R001 DSAM Help User Guide book Page 245 Thursday February 5 2009 2 02 PM ...

Страница 286: ...Chapter 9 Measure Mode Service Tab VoIP 246 DSAM Help User Guide Rev 001 21128026 R001 DSAM Help User Guide book Page 246 Thursday February 5 2009 2 02 PM ...

Страница 287: ... Spectrum tab function ality Topics discussed in this chapter are as follows Spectrum Measurement Modes on page 248 Upstream Spectrum on page 248 Downstream Spectrum on page 252 Field View on page 258 Ingress Resistance on page 266 21128026 R001 DSAM Help User Guide book Page 247 Thursday February 5 2009 2 02 PM ...

Страница 288: ...m spectrum frequency range 4 MHz to 1 GHz in 50 MHz frequency spans with a dynamic range of 60 dB Field View additional purchase required Analyzes and displays ingress and distortion on the upstream path return path as viewed by PathTrak or Phasor system at the node and the headend It identifies the frequency at which ingress occurs and displays the level value Ingress Resistance Allows for a 20 M...

Страница 289: ...el for ingress noise After an installation check the noise level again to compare the previous reading and confirm that install procedures or components did not create new sources of ingress noise Running an Upstream Spectrum To run an upstream spectrum 1 Press Measure 2 Press the Spectrum softkey 3 Using the arrow keys select Upstream Spectrum 4 Press ENTER Figure 225 Spectrum Upstream Spectrum F...

Страница 290: ...cross the entire frequency range When excessive ingress noise occurs at a specific frequency the measurement line develops a peak on the graph NOTE When you select Edit the limit set parameters you define remain constant for all channel plans and measurement modes Figure 227 Configure Select a Limit Set to Edit NOTE See Limit Sets on page 58 for instructions on editing limit sets If you chose the ...

Страница 291: ...ge in this mode is 4 45MHz North America or 4 65MHz International with the start and stop frequencies indicated on the horizontal bar at the bottom of the screen As you move the marker across the frequency range with the left or right arrow key the numeric frequency and level value is displayed below the graph Use the up and down arrow keys to adjust the reference level from 70 to 65 dBmV in 1dB i...

Страница 292: ...View measurement mode Downstream Spectrum Displays the Downstream Spectrum screen Pause Shift 8 Suspends measurement updates 3 Press ENTER Downstream Spectrum The Downstream Spectrum measurement mode additional purchase required depending on the model type enables you to view the entire CATV downstream spectrum frequency range 4 MHz to 1 GHz in 50 MHz span and can zoom to a 10 MHz span The frequen...

Страница 293: ...e forward path as brief as 1 ms Running a Downstream Spectrum To run a downstream spectrum 1 Press Measure 2 Press the Spectrum softkey 3 Using the arrow keys select Downstream Spectrum 4 Press ENTER 5 Press the Settings softkey 6 Using the arrow keys select Center Frequency Figure 229 Spectrum Downstream Spectrum Figure 230 Spectrum Downstream Spectrum 21128026 R001 DSAM Help User Guide book Page...

Страница 294: ...s the marker increments or decrements to the next or previous frequency point in the span 11 To adjust the graph for best viewing of the signal level measure ments use the up and down arrow keys Figure 231 Spectrum Center Frequency Figure 232 Spectrum Downstream Spectrum NOTE When in zoomed out the arrow keys move in increments of 25 MHz per key press When in zoomed in the arrow keys move in incre...

Страница 295: ...n is also displayed The right side of the Measurement Information area displays the active marker frequency Graph As multiple updates occur the maximum level trace changes only if new levels exceed the levels of the current trace A gray trace shows you the current data when Peak Hold is on If Peak Hold is turned on it ensures that the highest amplitude at each frequency point over multiple sweeps ...

Страница 296: ...live levels are displayed Setting the Center Frequency To set the center frequency 1 Press the Settings softkey 2 Using the arrow keys select Center Frequency 3 Press ENTER 4 Using the arrow keys and the alphanumeric keypad enter the center frequency in MHz 5 Press the OK softkey Using the Low Pass Filter The Low Pass Filter produces more accurate readings in the upstream path when it is turned on...

Страница 297: ...e dwell time in milliseconds ms 5 Press the OK softkey Viewing Downstream Spectrum Results To view Downstream Spectrum results 1 Press the View softkey 2 Using the arrow keys select one of the following options Auto Reference Shift 9 Enables you to automatically view measurement results in the best reference setting on the graph Figure 235 Downstream Spectrum Dwell Time NOTE For best reference set...

Страница 298: ...the marker Marker B Sets Marker B as the active marker Use the left and right arrow keys to move the marker 3 Press ENTER Field View The Field View measurement mode additional purchase required is provided for use with PathTrack or Phasor monitoring systems It yields Remote spectrum display of the upstream return path as selected for broadcast Increased troubleshooting accuracy by allowing you to ...

Страница 299: ...n the horizontal bar at the bottom of the screen As you move the marker across the frequency range with the left or right arrow key the numeric frequency and level value is displayed below the graph Use the up and down arrow keys to adjust the reference level in 1 dB increments Running a Field View To run a Field View 1 Press Measure 2 Press the Spectrum softkey 3 Using the arrow keys select Field...

Страница 300: ... To set the telemetry frequency between 50 MHz and 1000 MHz use the alphanumeric keypad 9 Press ENTER Figure 237 Measure Mode Field View Figure 238 Measure Mode Field View Telemetry NOTE You must set the telemetry frequency to match the frequency at which the headend modem is broadcasting data 21128026 R001 DSAM Help User Guide book Page 260 Thursday February 5 2009 2 02 PM ...

Страница 301: ...light the broadcast node you wish to view NOTE The RSG is not operational if Telemetry Frequency is set below 200 MHz NOTE If the node you want to view is not being broadcast contact the PathTrak or Phasor system administrator to request activation You must provide the PathTrak or Phasor system administrator with the unique identifier UID of the requested node The UID number is located on the bott...

Страница 302: ... Help User Guide Rev 001 18 Press the Select softkey 19 Press the Info softkey 20 Press the OK softkey Figure 239 Measure Mode Broadcast Nodes Figure 240 Measure Mode Node Info 21128026 R001 DSAM Help User Guide book Page 262 Thursday February 5 2009 2 02 PM ...

Страница 303: ...and 55 MHz Annex B or 5 and 65 MHz Annex A and Annex C use the arrow keys to highlight the Enter Desired Frequency field and press ENTER Using the arrow keys step the frequency up or down or use the alphanumeric keypad to enter the frequency then press ENTER OR Figure 241 Measure Mode Field View Figure 242 Measure Mode Return Signal Generator 21128026 R001 DSAM Help User Guide book Page 263 Thursd...

Страница 304: ...am path return path as captured at a node return at the headend or hub It identifies the frequency at which ingress occurs and displays the level value The Field View measurement mode graph continuously updates the spectrum from the PathTrak or Phasor System as each frequency is measured This forms a graph across the entire frequency range When excessive ingress noise occurs at a specific frequenc...

Страница 305: ...lemetry level Marker Information Area The Downstream Spectrum measurement mode also contains an area referred to as the Marker Information Area area below the graph This area consists of the marker name carrier frequency in MHz and measured signal level for the frequencies which the markers are on The black square around the letter A or B below the graph displays the active marker The Peak Hold le...

Страница 306: ... 201 frequency points The total ingress resis tance frequency range extends from 88 MHz to 108 MHz Initial measurements typically occur at the ground block with the home disconnected from the network Prior to an installation use upstream spectrum measurements to verify that the system does not exceed the maximum acceptable level for ingress noise After an installation check the noise level again t...

Страница 307: ...increments 6 Use the up and down arrows to adjust the graph for best viewing of the signal level measurements Figure 244 Spectrum Ingress Resistance Figure 245 Spectrum Ingress Resistance NOTE With each non continuous key press the marker moves to the next or previous frequency point in the span A continual press moves the marker faster 21128026 R001 DSAM Help User Guide book Page 267 Thursday Feb...

Страница 308: ... changes only if new levels exceed the levels of the current trace A gray trace shows you the current data when Peak Hold is on If Peak Hold is turned on it ensures that the highest amplitude at each frequency point over multiple sweeps is captured The thick black vertical line is the active marker the gray vertical line is the inactive marker and does not move Graph Information Bar This bar displ...

Страница 309: ...ement results in the best reference setting on the graph 5 dB div or 10 dB div Enables you to adjust the vertical resolution of the graph for the best viewing Peak Hold Turns Peak Hold on and off When Peak Hold is turned on it displays the highest level trace at each frequency for an extended view of the noise isolation Reset Manually resets the Peak Hold function Pause Shift 8 Suspends measuremen...

Страница 310: ...Chapter 10 Measure Mode Spectrum Tab Ingress Resistance 270 DSAM Help User Guide Rev 001 21128026 R001 DSAM Help User Guide book Page 270 Thursday February 5 2009 2 02 PM ...

Страница 311: ... Mode Sweep tab functionality Topics discussed in this chapter are as follows Sweep Measurement Modes on page 272 Forward Sweep on page 273 Reverse Sweep on page 279 Sweepless Sweep on page 285 Reverse Alignment on page 290 21128026 R001 DSAM Help User Guide book Page 271 Thursday February 5 2009 2 02 PM ...

Страница 312: ...erence carriers This exclusive Stealth Sweep technology is patented by JDSU and minimizes any possibility of service interference Both directions of the network can be swept A forward sweep is performed with a transceiver and measurement system in the headend or hub site such as the SDA 5500 Stealth Sweep Trans ceiver It transmits and measures active sweep points as well as measures reference carr...

Страница 313: ...o measure carrier levels and when necessary to inject short sweep pulses When stable carriers are present they can be referenced to create a sweep response without injecting any sweep pulses This minimizes any subscriber interference as a result of sweep testing In Forward Sweep the headend transceiver communicates with the field DSAM by telemetry transmitted on a forward frequency The telemetry p...

Страница 314: ...e local measurements on DSAM Forward Sweep is accomplished with a transceiver and measurement system in the headend or hub site such as the SDA 5500 Stealth Sweep Transceiver It transmits and measures active sweep points as well as measures reference carriers Multiple field DSAMs can be used at the same time with a common SDA 5500 Typically the headend technician or network engineer is responsible...

Страница 315: ... on page 55 7 Using the arrow keys and the alphanumeric keypad highlight and edit the parameters as needed 8 Press the OK softkey Understanding Forward Sweep Results The Forward Sweep measurement mode provides signal levels of all frequency points which are then displayed on a graph Figure 249 Measure Mode Forward Sweep NOTE All settings made in the Telemetry Settings screen are saved in the activ...

Страница 316: ...top frequencies as provided by the sweep plan transmitted from the headend transceiver and the sweep telemetry level The sweep telemetry level can be converted to dBmV dBm etc from the configuration settings of the DSAM If zoom is active a zoom icon also is displayed and the start and stop frequen cies are updated to match the zoom view Marker Status Area The Forward Sweep measurement mode also co...

Страница 317: ... softkey 2 Using the arrow keys select one of the following Auto Reference Shift 9 Enables you to automatically view measurement results in the best reference setting on the graph 1 dB div 2 dB div 5 dB div or 10 dB div Enables you to adjust the vertical resolution of the graph for the best viewing Zoom Turns graph magnification on and off The Zoom feature produces a display that has a frequency s...

Страница 318: ...e is not compatible with the current received sweep plan a message is displayed This feature enables you to view the difference between the live data and the data stored in the file When you select a reference file the file name is displayed in the subtitle bar in place of REF NONE NOTE Since a reference file is essentially an average of the data obtained from four sequential traces at least four ...

Страница 319: ...lates return path frequency response by comparing the results to the local measurement of the same carriers With Reverse Sweep DSAM performs both as an active transceiver and as an analysis receiver Active sweep points are transmitted and measured by the DSAM field meter and the SDA 5500 or SDA 5510 receives and measures the sweep points at the headend or hub site The measured results are returned...

Страница 320: ...work Sweeping the reverse path the amplifier is aligned so the response at the headend is within certain limits set by engineering The amplifier is aligned to compensate for loss characteristics in the cable between the test point input to amp and the next amp closest to the headend Running a Reverse Sweep To run a Reverse Sweep 1 Press Measure 2 Press the Sweep softkey NOTE There are two sweep co...

Страница 321: ...ettings screen Sweep Settings on page 55 7 Using the arrow keys and the alphanumeric keypad highlight and edit the parameters as needed 8 Press the OK softkey Understanding Reverse Sweep Results The Reverse Sweep measurement mode provides signal levels of all frequency points which are then displayed on a graph Figure 252 Measure Mode Reverse Sweep NOTE All settings made in the Telemetry Settings ...

Страница 322: ...r This area consists of the start and stop frequencies as provided by the sweep plan transmitted from the headend transceiver and the sweep telemetry level The sweep telemetry level can be converted to dBmV dBm etc from the configuration settings of the DSAM If zoom is active a zoom icon also is displayed and the start and stop frequen cies are updated to match the zoom view Marker Status Area The...

Страница 323: ...oftkey 2 Using the arrow keys select one of the following Auto Reference Shift 9 to automatically view measurement results in the best reference setting on the graph 1 dB div 2 dB div 5 dB div or 10 dB div Enables you to adjust the vertical resolution of the graph for the best viewing Zoom Turns Zoom on and off Pause Shift 8 Suspends measurement updates Marker A Sets Marker A as the active marker ...

Страница 324: ...the subtitle bar in place of REF NONE NOTE Since a reference file is essentially an average of the data obtained from four sequential traces at least four sequential traces must occur before you can save a file to be used as a reference file If you attempt to save a reference file before enough data has been collected the Not Enough Data error message is displayed NOTE The maximum file name length...

Страница 325: ...Sweep Sweepless Sweep additional purchase may be required enables you to retrieve sweep information without a transmitter Carrier levels derived from the channel plan are measured and recorded to compare with the levels of the same carriers at a different point in the network Running a Sweepless Sweep To run a sweepless sweep 1 Press Measure 2 Press the Sweep softkey Figure 254 Measure Mode Sweepl...

Страница 326: ...s hides audio points Test Point Comp Displays the Test Point Compensation screen Test Point Compensation on page 71 Sweep Tilt and Limit Displays the Sweep Settings screen Sweep Settings on page 55 7 Using the arrow keys and the alphanumeric keypad highlight and edit the parameters as needed Figure 255 Measure Mode Sweep Tab Figure 256 Measure Mode Sweepless Sweep 21128026 R001 DSAM Help User Guid...

Страница 327: ...reen to indicate the limit boundaries based on the limit value entered These appear only when sweep limit value is ON within Sweep Settings An error message automatically is displayed if the sweep telemetry level is too low Graph Information Bar This area consists of the start and stop frequencies as provided by the sweep plan transmitted from the headend transceiver and telemetry level If zoom is...

Страница 328: ...iew softkey 2 Using the arrow keys select one of the following Auto Reference Shift 9 to automatically view measurement results in the best reference setting on the graph 1 dB div 2 dB div 5 dB div or 10 dB div Enables you to adjust the vertical resolution of the graph for the best viewing Zoom Turns Zoom on and off Pause Shift 8 Suspends measurement updates Marker A Sets Marker A as the active ma...

Страница 329: ... the subtitle bar in place of REF NONE NOTE Since a reference file is essentially an average of the data obtained from four sequential traces at least four sequential traces must occur before you can save a file to be used as a reference file If you attempt to save a reference file before enough data has been collected the Not Enough Data error message is displayed NOTE The maximum file name lengt...

Страница 330: ...Alignment Using constant inputs Reverse Alignment mode enables you to correctly align the amplifiers to maintain unity gain This mode also minimizes noise and ingress so the digital signals are not clipped or compressed Running a Reverse Alignment To run a reverse alignment 1 Press Measure 2 Press the Sweep softkey 3 Using the arrow keys select Reverse Alignment 4 Press ENTER Figure 258 Measure Mo...

Страница 331: ...n Configuring Telemetry Frequency on page 86 Sweep Settings Displays the Sweep Settings screen Sweep Settings on page 55 7 Using the arrow keys and the alphanumeric keypad highlight and edit the parameters as needed 8 Press the OK softkey Understanding the Reverse Alignment Graph The Reverse Alignment measurement mode provides signal levels of all frequency points which are then displayed on a gra...

Страница 332: ...e start and stop frequen cies are updated to match the zoom view Marker Status Area The Marker Status area displays the marker frequency in MHz the meter generated signal level and the headend measured signal level frequencies for which the markers are on The black square around the frequency indicates the active marker The delta label between the level at the meter and the headend is also display...

Страница 333: ...s select one of the following options Save File Saves the current measurement as a static measurement file Open File Enables you to select and open a saved reverse alignment measurement file 3 Press ENTER NOTE For best reference setting results you may have to select the Auto Reference button more than once up to three times NOTE To assure exact measurement recording of current display always paus...

Страница 334: ...Chapter 11 Measure Mode Sweep Tab Reverse Alignment 294 DSAM Help User Guide Rev 001 21128026 R001 DSAM Help User Guide book Page 294 Thursday February 5 2009 2 02 PM ...

Страница 335: ...Product Family Series specifica tions Topics discussed in this appendix are as follows DSAM Product Family Series 1500 2500 2600 3500 3600 6000 Specifications on page 296 Power Component Specifications on page 302 21128026 R001 DSAM Help User Guide book Page 295 Thursday February 5 2009 2 02 PM ...

Страница 336: ...0 kHz Digital 50 kHz Channel Bandwidth Models ending in A 8 MHz Models ending in B 6 MHz Analog Level Measurement Signal Types CW video and audio NTSC PAL and SECAM Rangea 40 to 60 dBmV typical Resolution 0 1 dB Resolution Bandwidth 280 kHz Accuracyb 1 5 dB typical at 25 C 77 F Digital Level Measurement Modulation Types QPR QPSK QAM DVB ACTS Rangea 40 to 50 dBmV typical Resolution 0 1 dB Resolutio...

Страница 337: ... Models ending in A 5 to 65 MHz 65 96 MHz min downstream DOCSIS center freq 100 MHz Models ending in B 5 to 42 MHz 42 88 MHz min downstream DOCSIS center freq 91 MHz Upstream Modulation QPSK 16 QAM and 64 QAM as instructed by CMTS Transmitter Output At 25 C 77 F maximum 52 dBmV with 64 QAM 55 dBmV with 16 QAM and 58 dBmV with QPSK typ ical Downstream QAM Demodulation Modulation Type 64 128c and 25...

Страница 338: ... Accuracy 0 6 Symbol Rate Annex A 5 057 to 6 952 MSPS for 64 128 and 256 QAM Annex B 5 057 MSPS for 64 QAM and 5 361 MSPS for 256 QAM Annex C 5 274 MSPS for 64 QAM and 5 361 MSPS for 256 QAM Interfaces RF 75 ohm F81 or BNC option Maximum Sustained Voltage 100V AC and 140V DC RS232 Standard via DB9 on charger module or optional direct cable Printer Compatibility Epson and Citizen Ethernet RJ45 10 1...

Страница 339: ...elp System English in all models No charge sec ond language option of Chinese French German Hungarian Japa nese Korean Polish or Spanish Dimensions Models 1500 2500 and 3500 12 cm W 25 cm H 7 cm D 4 75 W 9 75 H 2 75 D Dimensions Model 2600 3600 and 6000 12 cm W 25 cm H 8 25 cm D 4 75 W 9 75 H 3 25 D Weight Models 1500 2500 and 3500 2 pounds 12 ounces 1 3kg Weight Model 2600 3600 and 6000 3 pounds ...

Страница 340: ...ulation type 64 128 and 256 QAM Constellation points 2000 4000 8000 16000 32000 or 64000 Zoom up to 4 levels Cable Modem Diagnostic Page IP addressg 192 168 100 1 Return QAM Generator Signal Modulations CW 16 QAM 64 QAM Symbol Rates MSPS 1 28 2 56 3 84 5 12 Frequency Range 5 55 MHz US 5 65 MHz EURO Supported Levels 8 0 58 0 dBmV DSAM 6000 Sweep Specifications Forward Sweep Requires SDA 5500 SDA co...

Страница 341: ...ge 5 55MHz US 5 65 MHz EURO Transmit Level 8 58 dBmV a Total integrated power detectable range b Accuracy for analog levels between 20 to 55 dBmV Accuracy for digital levels between 20 to 50 dBmV Additional uncertainty of 1 0 dB from 4 MHz to 15 MHz Additional uncertainty of 0 5 dB across 20 C to 50 C c 128 QAM not defined for Annex B ITU T J83 d Total integrated power At 64 QAM e DSAM1500 2500 an...

Страница 342: ...ge 0 C 5 C 32 F Humidity range 0 to 95 RH non condensing Output Li Ion Battery Battery life 5 Hours typical standard capacity 8 Hours typical high capacity actual life may vary with usage Fast charge rate 1250mA 10 Maximum charge time Up to 7 hours standard capacity Up to 12 hours high capacity Power Supply Module Input AC Input Voltage Range 90 264 VAC AC Input Frequency 47 63 Hz Output Output Po...

Страница 343: ...Instructions This appendix describes battery safety instructions for your DSAM The topics discussed in this appendix are as follows Important Safety Instructions on page 304 21128026 R001 DSAM Help User Guide book Page 303 Thursday February 5 2009 2 02 PM ...

Страница 344: ...Use the meter and its power components only as directed by the instructions in this guide or as directed by other resources provided by JDS Uniphase Corporation 2 When powering the meter maintain the secure connection of each power component 3 Use only JDS Uniphase Corporation specified components to power and conduct measurements with this meter 4 Keep the meter cavity that holds the battery and ...

Страница 345: ...ce the battery 3 Do not place the battery on a conductive surface 4 Do not allow metal objects to touch the battery contacts 5 Charge the battery only with the specified charger 6 Keep the battery away from heat sources near or above 60 C 140 F 7 Operate and store the battery only within the following ranges Li Ion Charging 0 to 45 C 32 to 113 F Discharge 20 to 60 C 4 to 140 F Short term storage 3...

Страница 346: ...easurements with this meter 3 Do not damage the power cords 4 Avoid using the meter or its power components during an elec trical storm 5 Follow all basic safety practices associated with the use of elec trical equipment WARNING Handle damaged or leaking batteries with extreme caution Avoid contact with the electrolyte WARNING Do not dispose of the battery in fire or in water Follow all local rest...

Страница 347: ...stomer services available through JDS Uniphase Corporation Topics discussed in this chapter include the following About Our Services on page 308 Customer Care on page 308 Global Services and Solutions on page 312 21128026 R001 DSAM Help User Guide book Page 307 Thursday February 5 2009 2 02 PM ...

Страница 348: ...nt Customer Care Customer Care is accompanied with the sale of every JDS Uniphase Corporation product Customer Care services include Needs Analysis on Products and Services Comprehensive Product and Service Literature Pre Sales Consulting Technical Assistance Business Hour Instrument Repair Under Warranty Repair and Calibration Services Immediate Return Authorizations Contact a Customer Care repre...

Страница 349: ...be thoroughly tested ensuring peak performance of the complete feature set Additional repair calibration and upgrade services are available for purchase through Global Services and Solutions Product Support on page 315 Equipment Return Instructions Please contact your local Customer Care location via telephone or web site for Return or Reference Authorization to accompany your equipment For each p...

Страница 350: ... warranty period for this product can be obtained by contacting your local JDS Uniphase Corporation Customer Service Representative or at our web site www jdsu com If installation services have been ordered the warranty period shall begin on the earlier of 1 completion of installation or 2 thirty 30 days after shipment to Customer If Installation Services have not been ordered the warranty period ...

Страница 351: ...niphase Corporation does not warrant that the Soft ware will operate uninterrupted or error free operate in the combina tion with other software meet Customer s requirements or that its use will be uninterrupted JDS Uniphase Corporation s obligation and Customer s sole and exclusive remedy under this Software Warranty is limited to at JDS Uniphase Corporation s option either i correcting the mater...

Страница 352: ...SS OR IMPLIED ON ANY HARD WARE SOFTWARE DOCUMENTATION OR SERVICES INCLUDING BUT NOT LIMITED TO WARRANTIES RELATING TO QUALITY PERFORMANCE NONINFRINGEMENT MERCHANT ABILITY OR FITNESS FOR A PARTICULAR PURPOSE AS WELL AS THOSE ARISING FROM ANY COURSE OF DEALING USAGE OR TRADE PRACTICE UNDER NO CIRCUMSTANCES WILL JDS Uniphase Corporation BE LIABLE FOR ANY INDIRECT OR CONSE QUENTIAL DAMAGES RELATED TO ...

Страница 353: ...th odologies to facilitate the integration of systems products into customers environments Basic Service for Systems encompasses system deployment training software upgrades technical assistance and repair This service is subject to availability please visit www jdsu com or contact Customer Care for additional information Training JDS Uniphase Corporation delivers training in instructor led or alt...

Страница 354: ...mprehensive instructor and participant materials to ensure consis tent content delivery for the length of the agreement A critical part of Courseware Licensing is the Train the Trainer program which prepares the organization s own instructors to deliver JDS Uniphase Corporation training courses Courseware Licensing is sold in incre ments of one two or three years Computer Based Training CBT By ble...

Страница 355: ...ed to meet specific client needs Our consulting staff will work as part of your team providing a valuable blend of subject matter profi ciency an in depth test and measurement systems perspective and trusted telecommunications industry vision Methods and Procedure Development JDS Uniphase Corporation s Methods and Procedure Development services include consulting with your staff and assessing your...

Страница 356: ...ized software applications to developing drivers to auto mated manufacturing tests On Site Test and Measurement Service JDS Uniphase Corporation On site Test and Measurement Service provides testing expertise to expedite the implementation turn up and provisioning of network services Applying their knowledge to your specific network requirements JDS Uniphase Corporation s network consultants can q...

Страница 357: ...milliwatt dBmV Decibels referenced to one millivolt dBRL Decibels of return loss dBµV Decibels referenced to one microvolt Delta V A Delta Video to Audio Calculated by subtracting the first if DUAL audio carrier level from the video carrier level for analog TV and DUAL type channels only DHCP Dynamic Host Configura tion Protocol DOCSIS Data Over Cable Service Interface Specification DOCSIS is a tr...

Страница 358: ...fined requirements The benefit of head room is that it reduces the bit error rate BER and provides a perfor mance safety net to help ensure that current and future high speed appli cations run at peak accuracy effi ciency and throughput regardless of seasonal temperature changes on the HFC distribution system HFC Hybrid Fiber Coax I IP Internet Protocol K kb s kilobytes per second kHz Kilohertz M ...

Страница 359: ...ocol SNR Signal to Noise Ratio T TCP IP Transmission Control Protocol Internet Protocol TFTP Trivial File Transfer Protocol TOD Time of Day TTL Time to Live U UI User interface Layout of commands in a user friendly environ ment See also GUI graphical user interface V VBW Video Bandwidth VoIP Voice over Internet Protocol VOP Velocity of Propagation 21128026 R001 DSAM Help User Guide book Page 319 T...

Страница 360: ...Glossary 320 DSAM Help User Guide Rev 001 21128026 R001 DSAM Help User Guide book Page 320 Thursday February 5 2009 2 02 PM ...

Страница 361: ...21128026 R001 DSAM Help User Guide book Page 321 Thursday February 5 2009 2 02 PM ...

Страница 362: ...240 404 2195 Latin America Tel 55 11 5503 3800 Fax 55 11 5505 1598 Asia Pacific Tel 852 2892 0990 Fax 852 2892 0770 EMEA Tel 49 7121 86 2222 Fax 49 7121 86 1222 www jdsu com Doc 21128027 001 Rev 001 February 2009 English 21128026 R001 DSAM Help User Guide book Page 322 Thursday February 5 2009 2 02 PM ...

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