Triple-Play Service Deployment

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96 Filter Technology Lower 3dB Upper dB E-Filter 1 ISDN BRI, DDS-LL 1 kHz 50 kHz F-Filter 1 HDSL 4.9 kHz 245 kHz G-Filter 1 ADSL 20 kHz 1.1 MHz G2-Filter ADSL2/2+ 20 kHz 2.2 MHz J-20K8 VDSL 2-8 20 kHz 8.5025 MHz J-20K12 VDSL 2-12 20 kHz 12.0025 MHz J-20K17 VDSL2-17 20 kHz 17.0025 MHz J-20K30 VDSL2-30 20 kHz 30.0025 MHz J-640K17 VDSL2 640 kHz 17.6 MHz J-17M25 VDSL2 17.6 MHz 25 MHz J-17M30 VDSL2 17.6 MHz 30 MHz J-25M30 VDSL2 25 MHz 30 MHz 1 Defined per IEEE standard 743 Table 4.3 xDSL Filters by Technology Figure 4.5 Wideband noise measurement (VDSL frequency range) Chapter 4: Troubleshooting the Copper Plant for IP <strong>Service</strong>s
Chapter 4: Troubleshooting the Copper Plant for IP <strong>Service</strong>s Wideband noise can be the result of radio frequency interference from disparate digital services in the same cable, AM or shortwave radio stations, and other sources. If excessive wideband noise is detected, use of a test set with a wideband spectral analysis capability is recommended as the next logical troubleshooting step. This provides more in-depth analysis of the noise on the line to determine the detailed characteristics of the interference and aid in identification of the potential noise source. Intermittent bursts or spikes of noise, commonly referred to as impulse noise may also be present as discussed in detail in the next section. Due to its intermittent nature, impulse noise may or may not be detected using the wideband noise measurement. If impulse noise is suspected, the impulse noise measurement is recommended for further isolation and analysis of the problem. While it is critical to make the determination whether or not the level of noise present is sufficient to impair the service and to attempt to ascertain the noise profile and potential source as described above, it is also important to consider potential root causes. Though a noise interference source can be strong enough to impair xDSL service by itself, in many cases pair imbalance and/or poor bonding and grounding of the cable are significant contributing factors. Specifically, unbalanced pairs and cable bonding and grounding issues reduce the noise immunity of the pair making it far more susceptible to interferers. 97
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Triple-Play Service Deployment A Co
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Copyright 2007, JDS Uniphase Corpor
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Recommended test tools . . . . . .
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VoIP Service Quality . . . . . . .
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Acknowledgements The JDSU Triple-Pl
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In North America, cable operators h
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Finally, securing all these service
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2 The Vision—Reliable Triple-Play
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4 The Building Blocks Chapter 1: Th
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6 Development/ Production - Compone
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8 Chapter 1: The Vision-Reliable Tr
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10 Chapter 1: The Vision-Reliable T
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16 Triple-Play Service Delivery ove
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18 Chapter 2: Triple-Play Service D
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20 Bandwidth Chapter 2: Triple-Play
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24 Encapsulation DA Chapter 2: Trip
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26 ISP/Internet ASP & Video Headend
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36 centralized location, the abilit
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38 Deploying and Troubleshooting Fi
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40 For “brownfield” or overlaid
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42 BPON uses time division multiple
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44 Voice IP Data Video Figure 3.3 A
Page 60 and 61: 46 From the splice enclosure, signa
Page 62 and 63: 48 1490nm laser/ 1310nm meter OLT 1
Page 64 and 65: 50 Central Office Depending on the
Page 66 and 67: 52 Chapter 3: Deploying and Trouble
Page 72 and 73: 58 Acceptance testing between the s
Page 74 and 75: 60 Once customers have been establi
Page 76 and 77: 62 When there is a physical layer f
Page 80 and 81: 66 Acceptance testing is always per
Page 82 and 83: 68 1490nm laser/ 1310nm meter OLT 1
Page 84 and 85: 70 Recommended test tools Whether t
Page 88 and 89: 74 These effects result in an easy-
Page 90 and 91: 76 Another approach uses a loss tes
Page 92 and 93: 78 Selective Optical Power Meters A
Page 96 and 97: 82 Troubleshooting the Copper Plant
Page 98 and 99: 84 Chapter 4: Troubleshooting the C
Page 104 and 105: 90 Capacitive balance Another metho
Page 106 and 107: 92 TDR Response (V) 7.3 3.6 Figure
Page 108 and 109: 94 Loop length also can be measured
Page 114 and 115: 100 Chapter 4: Troubleshooting the
Page 116 and 117: 102 TDR capabilities A time domain
Page 118 and 119: 104 Bridged taps Bridged taps, or l
Page 126 and 127: 112 Physical Layer Test - Foreign V
Page 128 and 129: 114 Troubleshooting the Premises Wi
Page 132 and 133: 118 R-Value Testing the Premises Ne
Page 136 and 137: 122 Typical Symptom Fault Condition
Page 138 and 139: 124 Fault Common Cause Diagnosis Go
Page 140 and 141: 126 Locating and resolving coax pro
Page 144 and 145: 130 Using advanced signal processin
Page 146 and 147: 132 Relative Frequency % 5 4 3 2 1
Page 156 and 157: 142 Troubleshooting Video in the He
Page 158 and 159: 144 MPEG-2 TS over RF Understanding
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146 elementary streams (ES). Each d
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148 Chapter 6: Troubleshooting Vide
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150 MPEG Technology Chapter 6: Trou
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152 MPEG Video Syntax MPEG-2 System
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168 Interoperability and segmentati
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178 Troubleshooting Video Service i
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180 Figure 7.2 A schematic diagram
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186 STB DSL Modem EPG/Multicast Inf
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188 RTSP Latency PAUSE Latency PLAY
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192 Video Service Troubleshooting:
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194 Standard troubleshooting steps
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196 Dropped packets indicate a prob
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200 Troubleshooting Voice over IP T
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202 Control plane protocols Real Ti
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204 Since the 64 Kbps bandwidth req
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206 Chapter 8: Troubleshooting VoIP
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210 Network Equipment Installation
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212 Figure 8.5 PVA-1000 While check
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214 Using handheld IP phone emulato
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216 Provisioning Tests Purpose: To
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218 Solving Voice Quality Problems
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222 Troubleshooting High Speed Data
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224 ATU-Cs POTS Switch DSLAM health
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226 transmits at three bits per bau
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228 R ate (Mbits /s ) performance o
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230 Chapter 9: Troubleshooting High
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234 The JDSU HST-3000 provides comp
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244 Service Assurance for Triple-Pl
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246 Chapter 10: Service Assurance f
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252 b. Correlate network performanc
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254 Passive service monitoring Hard
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258 Measurable Benefits Successful
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262 PON Reflectometer Trace Analysi
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264 Theoretical Method of PON Refle
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266 Learning Acquisition Phase The
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268 Figure A.7 Reflective event dev
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270 Appendix A: PON Reflectometer T
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272 Glossary AAL5 ATM Adaptation La
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274 Glossary Block A set of 8x8 pix
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276 Glossary Digital Television A g
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278 Glossary ETR 290 ETSI recommend
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280 Glossary I/F Interface ICMP Int
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282 Glossary MGT Master Guide Table
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284 Glossary Multiplex (n) A digita
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286 Glossary PSI Program Specific I
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288 Glossary ST Stuffing Table. An
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290 Notes: Notes
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292 Notes
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Test & Measurement Regional Sales N
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