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PTP 300 and PTP 500 Series User Guide Testing a telecoms link
phn-1115_006v000
Sep 2010
8-19
Testing a telecoms link
If an E1 or T1 link has been installed, it may be helpful to test the link by performing a
loopback test.
This task consists of the following procedure:
• Performing a telecoms loopback test on page 8-19
Performing a telecoms loopback test
The loopback test allows the telecoms data stream to be looped back at the copper or
wireless interface. A typical T1 or E1 installation might include a ‘Copper’ loopback on
the local unit followed by a ‘Wireless’ loopback on the remote unit.
NOTE
The Telecoms page is only available when the Telecoms Interface has been
set to either T1 or E1, as described in Task 8: Configuring wireless and
telecoms i
nterf
aces on page 6-26.
To perform
a loopback test, proceed as follows:
Procedure 8-15 Configure telecoms circuits for network
1
Select menu option System, Configuration, Telecoms. The Telecoms
page is displayed (Figure 8-5).
2
Select the Telecoms Loopback option: ‘Copper’ or ‘Wireless’ (Table 8-3).
3
Select Submit Updated System Configuration.
4
Perform loopback tests.
5
Reset Telecoms Loopback to ‘None’ for operational use.
Alarms on the Home Page indicate the presence of loopbacks on either
channel.
- PTP 300 and PTP 500 Series 1
- Important safety information 3
- PIDU Plus 4
- Cable measuring card 4
- Non-Motorola power supply 4
- Alternative DC supplies 4
- Primary disconnect device 5
- External cables 5
- Grounding PTP-SYNC 5
- RF exposure near the antenna 5
- Minimum separation distances 5
- Safety 6
- USA specific information 8
- Contents 10
- Contents 11
- List of Figures 20
- List of Figures 21
- List of Tables 25
- List of Tables 27
- About This User Guide 29
- Revision history 30
- General information 31
- Special key sequences 32
- Contacting Motorola 33
- Reporting problems 35
- Repair and service 35
- Warranty 36
- Security advice 37
- Warnings 38
- Cautions 38
- Caring for the environment 39
- Overview 42
- Typical deployment 43
- System components 44
- Product variants 45
- Outdoor unit (ODU) 46
- ODU interfaces 47
- Mounting brackets 48
- Network connection 48
- PIDU Plus description 49
- PIDU Plus interfaces 49
- Outdoor connections 53
- Indoor connections 54
- Cable grounding kits 54
- PTP-SYNC unit 56
- PTP-SYNC unit interfaces 57
- Wireless operation 59
- Channel selection 60
- Link mode optimization 61
- Link symmetry 61
- PTP 300 62
- PTP 500 62
- OFDM and channel bandwidth 63
- Spectrum management 63
- Measurement analysis 64
- Statistical summary 64
- Adaptive modulation 65
- Radar avoidance 67
- Security 68
- Region codes 68
- PTP networks 69
- TDD synchronization 70
- PTP LINKPlanner User Guide 71
- Advantages of PTP-SYNC 72
- Ethernet bridging 73
- Management network 74
- Back-to-back links 75
- Protocol model 76
- Telecoms circuits 78
- Fixed frequency operation 79
- Further reading 79
- System management 80
- SNMPv3 security 82
- Downgrade of the license key 85
- AES license 86
- Critical security parameters 87
- Capacity upgrades 87
- Software upgrade 87
- Recovery mode 88
- Spectrum planning 90
- Available spectrum 92
- Channel bandwidth 93
- Site planning 94
- Maximum cable lengths 95
- Wind loading 95
- Wind speed statistics 96
- Link planning 97
- Path loss considerations 98
- Standards 102
- Lightning protection zones 102
- R56: Standards And 103
- Basic requirements 104
- Grounding cable requirements 104
- ODU requirements 105
- Data network planning 120
- Back to back links 121
- ‘Green Ethernet’ switches 121
- Network management planning 122
- Supported alarms 123
- Enabling SNMP 124
- Security planning 125
- Chapter 3 Legal information 129
- Definitions 130
- Grant of license 130
- Conditions of use 131
- Title and restrictions 132
- Confidentiality 132
- Right to use Motorola’s name 133
- Transfer 133
- Updates 133
- Maintenance 133
- Disclaimer 134
- Limitation of liability 134
- U.S. government 135
- Term of license 135
- Governing law 135
- Assignment 135
- Survival of provisions 136
- Entire agreement 136
- Third party software 136
- OpenSSL 141
- Hardware warranty 151
- Limit of liability 152
- Installation inventories 154
- Kit contents 160
- Regional variants 160
- ODU specifications 165
- ODU environmental 166
- PIDU Plus specifications 167
- PIDU Plus electrical 168
- Indoor CAT5e cable 170
- Antenna specifications 171
- PTP-SYNC specifications 179
- PTP-SYNC electrical 180
- Timing inputs 180
- Wireless specifications 182
- Licenses and region codes 184
- Available spectrum settings 188
- Data network specifications 206
- System management data 207
- Email alerts 208
- Safety compliance 209
- Electromagnetic compliance 210
- Radio certifications 211
- Compliance with regulations 212
- Deployment and operation 213
- Registration of links 213
- Electromagnetic energy 217
- Power density exposure limit 218
- Calculation of power density 218
- PTP 54300 and PTP 54500 221
- PTP 58300 and PTP 58500 222
- Notifications 224
- Data rate calculations 229
- Procedure 230
- Example 231
- Data throughput capacity 232
- Range adjustment curves 239
- Chapter 5 Installation 241
- Preparing for installation 242
- Preparing tools 243
- Safety precautions 244
- Assembly 245
- Installing the ODU 253
- Mounting the ODU 255
- Installing the PIDU Plus 266
- Installing a PTP-SYNC unit 269
- Mounting the PTP-SYNC unit 270
- Mounting the GPS receiver 274
- Configuring QoS 294
- Generating a new license key 298
- Entering a new license key 298
- PTP500-04-01.DLD2) 301
- Task 6: Configuring security 304
- Task 7: Setting passwords 306
- Starting installation wizard 308
- Task 9: Barring channels 325
- Task 10: Aligning antennas 326
- Aligning antennas 327
- Method #3: graphical install 333
- Disarming the units 334
- Connecting to the network 338
- Setting the real-time clock 339
- Starting SNMP wizard 343
- Start SNMP wizard 352
- Chapter 7 Operation 361
- Web-based management 362
- Menu navigation bar 363
- Using the menu options 364
- Viewing the system summary 366
- Alarm display 367
- Viewing the system status 371
- Histogram data 379
- Managing spectrum 380
- Barring a channel 383
- X axis and Y axis 385
- Channel states 385
- Key metrics 387
- Managing performance 398
- System histograms 400
- System counters 402
- Checking detailed counters 405
- Downloading diagnostic data 410
- Rebooting the unit 412
- Using recovery mode 413
- Selecting a recovery option 414
- Upgrading software image 416
- Erasing configuration 418
- Chapter 8 Troubleshooting 421
- Testing link end hardware 422
- Power LED is off 425
- Power LED is flashing 426
- No Ethernet activity 428
- Irregular Ethernet activity 428
- Connection is not 100 BaseT 428
- Test ping packet loss 430
- Testing the radio link 434
- Some activity 435
- Testing PTP-SYNC 437
- SYNC units 438
- Testing a telecoms link 439
- Glossary 441
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