User's Manual
Table Of Contents
- PTP 600 User Guide
- Copyright Information
- Contents
- 1 About This User Guide
- 2 Avoiding Hazards
- Getting Started
- 4 Product Architecture
- 5 Radio Link Planning and Regulations
- 5.1 Spectrum Planning
- 5.2 Licenses and Region Codes
- 5.3 Operational Restrictions
- 5.4 Variable Channel Bandwidth Operation
- 5.5 PTP 25600 Specific Frequency Planning Considerations
- 5.6 PTP 45600 Specific Frequency Planning Considerations
- 5.7 PTP 48600 Specific Frequency Planning Considerations
- 5.8 PTP 49600 Specific Frequency Planning Considerations
- 5.9 PTP 54600 Specific Frequency Planning Considerations
- 5.10 PTP 58600 Specific Frequency Planning Considerations
- 5.11 PTP 59600 Specific Frequency Planning Considerations
- 5.12 Time Division Duplex (TDD) Synchronization
- 5.13 Link Mode Optimization
- 5.14 Distance
- 5.15 Networking Information
- 5.16 Lightning Protection
- 5.17 Electrical Requirements
- 5.18 Latency
- 6 Site Planning
- 6.1 Site Survey and Link Planning
- 6.2 Site Selection Criteria
- 6.2.1 ODU Site Selection
- 6.2.2 PTP 600 Series Bridge PIDU Plus Site Selection
- 6.2.3 Path Loss Considerations
- 6.2.4 Definitions
- 6.2.5 PTP 25600 System Threshold, Output Power and Link Loss
- 6.2.6 PTP 45600 System Threshold, Output Power and Link Loss
- 6.2.7 PTP 48600 System Threshold, Output Power and Link Loss
- 6.2.8 PTP 49600 System Threshold, Output Power and Link Loss
- 6.2.9 PTP 54600 System Threshold, Output Power and Link Loss
- 6.2.10 PTP 58600 System Threshold, Output Power and Link Loss
- 6.2.11 PTP 59600 System Threshold, Output Power and Link Loss
- 7 Installation
- 7.1 Preparation
- 7.2 Installation Procedure
- 7.3 Tools Required
- 7.4 Installation Support
- 7.5 Legal Disclaimer
- 7.6 Mounting the ODUs
- 7.7 Connecting Up
- 7.7.1 Preparing the PIDU Plus To ODU Cable
- 7.7.2 Making the Connections at the ODU
- 7.7.3 Making the PTP 600 Series Bridge PIDU Plus Connection At The ODU
- 7.7.4 Routing the Cable
- 7.7.5 Fitting a Lightning Protection Unit
- 7.7.6 Grounding the Installation
- 7.7.7 Making the ODU Connection at the PTP 600 Series Bridge PIDU Plus
- 7.7.8 Making the Network Connection at The PIDU Plus – PTP 600 Series Bridge
- 7.7.9 Mounting the PTP 600 Series Bridge PIDU Plus
- 7.7.10 Powering Up
- 7.8 Establishing a Radio Link
- 8 Web Page Reference
- 8.1 Home Page – PTP 600 Series Bridge
- 8.2 Systems Status Page
- 8.3 System Administration Pages
- 8.3.1 System Configuration
- 8.3.2 Statistics Page
- 8.3.3 Detailed Counters Page
- 8.3.4 Install Pages
- 8.3.5 Graphical Install
- 8.3.6 Software Upgrade
- 8.3.7 Spectrum Management
- 8.3.8 Spectrum Management (Fixed Frequency)
- 8.3.9 Spectrum Management Control - With Operational Restrictions
- 8.3.10 Spectrum Management – Example of PTP 25600 Product variant
- 8.3.11 Remote Management Page
- 8.3.12 Diagnostics
- 8.3.13 Change System Administration Password
- 8.3.14 License Key
- 8.3.15 Properties
- 8.3.16 Reboot
- 9 Recovery Mode
- 10 Lightning Protection
- 10.1 Overview
- 10.2 Detailed Installation
- 10.3 Installation Wiring
- 10.4 LPU Recommended Configurations
- 10.4.1 Typical Mast or Tower Installation
- 10.4.2 Typical Wall Installation
- 10.4.3 Mast or Tower Installation with E1/T1
- 10.4.4 Wall Installation with E1/T1
- 10.4.5 Mast or Tower Installation with GPS Sync Box
- 10.4.6 Wall Installation with GPS Sync Box
- 10.4.7 Mast or Tower Installation with GPS Sync Box and E1/T1
- 10.4.8 Wall Installation with GPS Sync Box and E1/T1
- 11 Troubleshooting (Fault Finding)
- 12 Wind Loading
- 13 Connectorized PTP 600 Series Bridge
- 13.1 Scope
- 13.2 Product Description
- 13.3 Software/Features
- 13.4 Deployment Considerations
- 13.5 Link Budget
- 13.6 Regulatory Issues with Connectorized Units
- 13.7 Installation
- 13.7.1 Antenna Choice
- 13.7.2 Cables and Connectors
- 13.7.3 Tools
- 13.7.4 Miscellaneous supplies
- 13.7.5 Mounting the Connectorized 600 Series Bridge
- 13.7.6 Mounting the antennas
- 13.7.7 Alignment Process
- 13.7.8 Aligning Dual Polar Antennas
- 13.7.9 Aligning Separate Antennas
- 13.7.10 Completing the Installation
- 13.7.11 Antenna Cable Fixing
- 13.7.12 Antenna Connection Weatherproofing
- 13.8 Additional Lightning Protection
- 14 TDD Synchronization Configuration and Installation Guide
- 15 E1/T1 Installation Guide
- 16 Data Rate Calculations
- 17 AES Encryption Upgrade
- 18 Remote Software Upgrade by TFTP
- 19 Legal and Regulatory Notices
- 19.1 Important Note on Modifications
- 19.2 National and Regional Regulatory Notices – PTP 49600 variant
- 19.3 National and Regional Regulatory Notices – PTP 59600 variant
- 19.4 National and Regional Regulatory Notices – PTP 58600 variant
- 19.5 National and Regional Regulatory Notices – PTP 54600 Variant
- 19.6 National and Regional Regulatory Notices – PTP 25600 Variant
- 19.7 Exposure
- 19.8 Legal Notices
- 20 Specifications
- 20.1 System Specifications
- 20.1.1 Wireless PTP 25600 Variant
- 20.1.2 Wireless PTP 45600 Variant
- 20.1.3 Wireless PTP 48600 Variant
- 20.1.4 Wireless PTP 49600 Variant
- 20.1.5 Wireless PTP 54600 Variant
- 20.1.6 Wireless PTP 58600 Variant
- 20.1.7 Wireless PTP 59600 Variant
- 20.1.8 Management
- 20.1.9 Ethernet Bridging
- 20.1.10 Physical
- 20.1.11 Powering
- 20.1.12 Telecoms Interface
- 20.2 Safety Compliance
- 20.3 EMC Emissions Compliance
- 20.4 EMC Immunity Compliance
- 20.5 Radio Certifications
- 20.6 Environmental Specifications
- 20.7 System Connections
- 20.1 System Specifications
- 21 FAQs
- 22 Glossary
- 23 Index
5 Radio Link Planning and Regulations
80
5.13 Link Mode Optimization
Link Mode Optimization allows the PTP 600 link to be optimized according to the type of
traffic that will be bridged. There are two modes to choose from: IP and TDM.
5.13.1 IP Link Mode Optimization
In IP Mod
e, the PTP 600 product runs an adaptive TDD scheme. This means that an
unloaded link runs 10:10 mode (10 OFDM bursts alternately in each direction). If there is a
sustained increase in traffic load in one direction, a threshold is reached where the TDD
mode automatically adapts to 20:10. If the load continues to increase, then the TDD structure
adapts even further through 30:10 to 40:10. This is the state of maximum link asymmetry (40
OFDM bursts in one direction compared with 10 in the other). If the load increases in BOTH
directions, then the TDD structure adapts from 10:10, through 20:20, 30:30 to 40:40. This is a
state of maximum aggregate throughput.
Three of these modes (10:10, 40:10 and 40:40) have the following characteristics:
• In 10:10 mode, throughput performance is equal in each direction. Aggregate throughput
and latency are minimized.
• In 40:10 mode, throughput performance is maximized in one direction, to the detriment of
both latency and throughput in the opposite direction.
• In 40:40 mode, throughput performance is maximized in both directions. Aggregate
throughput and latency are maximized.
NOTE: There is an engineering trade-off between the flexibility of adaptive TDD and latency.
When the TDD structure changes, there is a brief impact on latency for a few frames. This
does not affect the steady state long term average latency, but may be recorded as a
maximum latency. This affect may be amplified for short latency tests or if the traffic loading is
oscillating either side of a boundary condition. As the TDD burst length increases, traffic in
each direction has to wait longer before a transmit window is available, but more data can be
sent during the burst. There is an impact on latency but it varies depending upon installation
range, frame size and modulation mode.
5.13.2
TDM Link Mode Optimization
In TDM mod
e, two major differences in link behavior occur compared with IP mode. First, if
E1/T1 services are enabled, the TDD structure is fixed symmetrically. Either 10:10, 20:20,
30:30 or 40:40 based upon the installed range, as shown in Table 16.