Reference Manual
Table Of Contents
- Preface
- 1. Introduction
- 2. Basic Radio Programming and Setup
- 2.1. Setting the Radio's Role in the Network and the Network Type
- 2.2. Establishing Communication with Instrumentation and Computers
- 2.3. Establishing Communication with Other Radios in the Network
- 2.4. Designate the RF Transmission Characteristics
- 2.4.1. 900MHz Channel Select Parameters
- 2.4.2. 900MHz Frequency Key (Golden Setting)
- 2.4.3. 900MHz Frequency Zones
- 2.4.4. High Noise
- 2.4.5. 900MHz Hop Frequency Offset
- 2.4.6. 900MHz Hop Table Size
- 2.4.7. 900MHz Hop Table Version
- 2.4.8. Max Packet Size and Min Packet Size (Golden Setting)
- 2.4.9. MCU Speed
- 2.4.10. Remote LED
- 2.4.11. Retry Time Out
- 2.4.12. RF Data Rate (Golden Setting)
- 2.4.13. RTS to CTS
- 2.4.14. Slave Security
- 2.4.15. Transmit Power
- 2.4.16. Transmit Rate
- 3. Configuring Point-to-MultiPoint Networks
- 3.1. Point to MultiPoint Network Characteristics
- 3.2. Point-to-MultiPoint Network Quick Start
- 3.3. Point-to-MultiPoint Operation LEDs
- 3.4. Overlapping MultiPoint Networks
- 3.5. Establishing Communication with Other Radios in a MultiPoint Network
- 3.6. Routing Communications through the Network
- 3.7. Setting Other MultiPoint Parameters
- 3.7.1. 1 PPS Enable Delay
- 3.7.2. Diagnostics
- 3.7.3. DTR Connect
- 3.7.4. Local Mode
- 3.7.5. Master Packet Repeat
- 3.7.6. Master Packet Repeat in MultiPoint Networks with Repeaters
- 3.7.7. Max Slave Retry
- 3.7.8. Radio ID
- 3.7.9. Radio Name
- 3.7.10. Repeaters
- 3.7.11. Repeater Frequency
- 3.7.12. Retry Odds
- 3.7.13. Slave / Repeater
- 3.8. Conserving Power
- 3.9. Reading Diagnostics in Tool Suite
- 4. Configuring Point-to-Point Networks
- 5. Advanced Programming
- 6. Viewing Radio Statistics
- 7. Approved Antennas
- 8. FGR3 Wireless Data Radios Pinouts
- 9. Troubleshooting
- 10. FGR3 Release Notes
- Appendix A: FGR3 Technical Specifications
- Appendix B: FGR3 Board Level Mechanical Drawing
- Appendix C: 900MHz Factory Default Settings
- Appendix D: 900MHz Channel Frequency IDs
- Appendix E: FreeWave Legal Information
3. Configuring Point-to-MultiPoint Networks
FGR3
User-Reference Manual
LUM0110AA Rev Jan-2019 Page 63 of 143 Copyright © 2019FreeWave
This document is subject to change without notice. This document is the property of FreeWave Technologies, Inc.
and contains proprietary information owned by FreeWave. This document cannot be reproduced in whole or in
part by any means without written permission from FreeWave Technologies, Inc.
3.1. Point to MultiPoint Network Characteristics
A Point to MultiPoint network has these unique characteristics:
l Golden Settings (on page 63).
l Master to Slave Communications (on page 63).
l Slave to Master Communications (on page 63).
3.1.1. Golden Settings
A Point-to-MultiPoint network requires that the Golden Settings (described in Golden Settings (on
page 43)) are set the same on ALL radios in the network.
If several independent MultiPoint networks are located in close proximity, the planning becomes
more critical. It is very important to include as much frequency and time diversity as possible using
different Min and Max Packet Size. In some instances the use of the MultiMaster Sync option
may be required.
In almost all MultiPoint networks, the Frequency Key is the same for all radios. In other networks,
where parallel Repeaters are introduced, the Frequency Key value needs to change.
3.1.2. Master to Slave Communications
Master - to - Slave communications within a MultiPoint network have these characteristics:
l Data packets sent from the Master include a 32-bit CRC.
l The Master repeats its data broadcast between 0 to 9 times, depending on the Master
Packet Repeat setting. For more information, see Master Packet Repeat (on page 79).
l A Slave or Repeater does not send acknowledgments to the Master when it receives data.
l When any Slave in the network receives the data packet from the Master with the 32-bit
CRC, that Slave ignores any additional repeats of the data, and passes the data to its
data port.
l Repeaters in the network send data to Slave radios and other Repeaters.
3.1.3. Slave to Master Communications
Slave - to - Master communications within a MultiPoint network have these characteristics:
l Data packets sent from the Slave to the Master include a 32-bit CRC.
l When the Master successfully receives data, it sends an acknowledgment to the Slave and
passes the data out its data port.