Exfo VDSL2 Uživatelský manuál Strana 98
- Strana / 267
- Tabulka s obsahem
- ŘEŠENÍ PROBLÉMŮ
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
Fault Location Tests
90 AXS-200/635
TDR Test
Test Setup
The Test Setup tab allows you to
configure parameters for the TDR test.
VOP sets the velocity of propagation for
the cable as a ratio of the speed
of light.
Note: The default VOP is good for most
cables; only change it when you know
the correct VOP for the cable you are
measuring. An incorrect VOP will cause
distance errors.
TDR
The TDR test first attempts to find the
length of the circuit and then searches
all ranges from shortest to longest for
significant events. Upon completion,
the test selects the nearest major
event, sets the range to match, and
aligns the cursor with the event.
Est is the estimated length of the
circuit.
- AXS-200/635 1
- Contents 3
- Certification Information 6
- DECLARATION OF CONFORMITY 7
- 1 Introducing the Copper 9
- VDSL2, ADSL2+, and IP 9
- Triple-Play Test Set 9
- Typical Applications 10
- Cable Connections 11
- LED Indicators 12
- Electrical Safety Information 12
- ADSL2+ Basic Principles 13
- IMPORTANT 15
- Qualification Tests 17
- POTS Dialer 18
- Regional Settings 20
- Cable Setup 22
- Standard 24
- Phone Book 25
- Reading Saved Results 30
- 3 Auto CQ/Video-DSL Rate 33
- Prediction 33
- Configuring CQ Auto Tests 34
- Test List 2 36
- Common Parameters 37
- VF Test Parameters 38
- WB Test Parameters 40
- Thresholds 1 42
- Thresholds 2 44
- DMM Results 46
- Isolation 46
- Load Coil 46
- VF Tests 47
- VF Impulse Noise 47
- Receive Tone 47
- WB Longitudinal Balance 48
- WB Impulse Noise 51
- 44 AXS-200/635 52
- Video-DSL Rate Prediction 53
- Configuration 54
- Impulse Noise Setup 57
- 50 AXS-200/635 58
- Viewing Results 59
- Video Rates 61
- DMM Tests 62
- WB PSD Noise 64
- WB Attenuation 65
- DSL Rate Tests 66
- 4 POTS Auto Test 71
- 64 AXS-200/635 72
- 5 DMM Tests 73
- 66 AXS-200/635 74
- Resistance 75
- 68 AXS-200/635 76
- Capacitance 78
- VF Noise 80
- In Service 82
- Water Detection Test 83
- Resistive Balance 84
- 6VF Tests 87
- Tracing Tone 90
- Impulse Noise 92
- Power Influence 94
- Load Coil Detection 95
- 7Fault Location Tests 97
- RFL Single Pair (2 wire) Test 100
- Connection Diagram 102
- Test Setup 103
- 96 AXS-200/635 104
- Loop Mapper Test 106
- Result Summary 107
- TDR Graph 107
- 100 AXS-200/635 108
- FDR Graph 109
- 8 Wideband Tests 111
- Receive Tone (RX) 112
- Send Tone (TX) 113
- PSD Noise 114
- Spectral Detective Test 118
- Spectral Detective 120
- Impulse Noise Test 121
- Impulse Noise Result 122
- Impulse Noise Histogram 123
- 116 AXS-200/635 124
- Attenuation Test 126
- Attenuation 127
- Longitudinal Balance 128
- Data Rate Prediction 130
- Signal-to-Noise Ratio 136
- Bits per Bin 137
- Ethernet Testing 139
- Read Saved Results 140
- Setup Profile 141
- Selected Profile 142
- 136 AXS-200/635 144
- Setup Line Connection 145
- 138 AXS-200/635 146
- WAN Access 147
- 140 AXS-200/635 148
- LAN Setup 152
- Thresholds 154
- Down Stream Channels 156
- Triple-Play Verification 157
- Configure Profile 158
- Configure DSL/IP Tests 159
- 152 AXS-200/635 160
- ATM LoopBack 161
- Ping Test 162
- TraceRoute 163
- HTTP Speed 164
- FTP Speed 165
- IPTV Analysis 166
- VoIP Analysis 168
- Data Analysis 169
- STB Support 170
- 12 Running CPE Tests 171
- Line Status 172
- DSL Parameters 174
- Statistics 175
- VDSL Bands 176
- WAN Status 178
- HPNA Info 184
- HPNA Statistics 185
- ATM Loopback Test 186
- Saving Results 187
- 13 IPTV Analysis 189
- LAN Status 198
- Network Activity 199
- Down Stream Rate 199
- ERR Indicator 200
- IGMP Monitor 201
- RTSP Info 202
- Detected Streams 204
- IP Arrival Jitter 205
- PCR Jitter 206
- Stream Parameters 207
- Stream Content 208
- 14 Data Analysis 213
- IP Packets 222
- Protocols 223
- Down Stream Rates 224
- Up Stream Rates 224
- 15 Running a VoIP Test 229
- Call History 237
- Packets Analysis 238
- Jitter Analysis 239
- 16 Maintenance 245
- Recycling and Disposal 246
- 17 Troubleshooting 247
- AXS-635-XX-XX-XX 248
- Transportation 249
- 18 Warranty 251
- Service and Repairs 253
- 246 AXS-200/635 254
- A Technical Specifications 255
- Technical Specifications 256
- 中国关于危害物质限制的规定 265
- MARKING REQUIREMENTS 266
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