Reference Manual
Table Of Contents
- Preface
- 1. Overview
- Untitled
- 2. Equipment
- 3. Installation
- 4. Basic Radio Programming and Setup
- 4.1. Define the Network Type and the Radio's Role in that Network
- 4.2. Establish Communication with Instrumentation and Computers
- 4.3. Establishing Communication with Other Radios in the Network
- 4.4. Set the Data Transmission Characteristics
- 4.5. Set Radio Passwords
- 4.6. Set the Hop Table Size in the Terminal Interface
- 4.7. Set the Radio to a Single Channel in a Terminal Emulator
- 4.8. Set the Radio to Hop Channels
- 4.9. Edit Frequencies for Multiple Channels
- 5. Configure Point-to-MultiPoint Networks
- 5.1. Point to MultiPoint Network Characteristics
- 5.2. Point-to-MultiPoint Network Quick Start (Terminal Interface)
- 5.3. Overlapping MultiPoint Networks
- 5.4. Establishing Communication with Other Radios in a MultiPoint Network
- 5.5. Routing Communication Through the Network
- 5.6. Setting Other MultiPoint Parameters
- 5.7. Reading Diagnostics in Tool Suite
- 6. Configure Point-to-Point Networks
- 7. View Radio Statistics
- 8. Release Notes
- 9. Additional Radio Information
- Appendix A: Technical Specifications
- Appendix B: RF Board Pin-Out
- Appendix C: RS232 Pin Assignments - DB9
- Appendix D: LRS455 Frequency Table
- Appendix E: Factory Default Settings
- Appendix F: Point-to-MultiPoint Operation LEDs
- Appendix G: Point-to-Point Operation LEDs
- Appendix H: FreeWave Legal Information
- Blank Page
- Blank Page
4. Basic Radio Programming and Setup
LUM0020CD Rev June-2020 Page 39 of 112 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.
Low Power Mode
Setting Description
Description
The Low Power Mode parameter allows a Multipoint Slave to consume less
power by dimming the radio's LEDs.
l When set to 2 through 31, the radio sleeps between slots.
Example: Using a setting of 2 the radio sleeps 1 out of 2 slots.
Using a setting of 3 the radio sleeps 2 out of 3 slots, etc.
l When the radio is asleep, it hears nothing from the Master.
This table shows the changes at different Low Power Mode settings.
l The actual current draw depends on many factors.
l The table gives only a qualitative indication of supply current savings.
l A low number reduces latency and a high number reduces current consumption.
Important!: The actual current draw depends on many factors.
The table provides only a qualitative indication of supply current savings.
Current Draw Setting Description
More 0 Low power, disabled.
1
l LEDs are dimmed.
l Radio remains awake, listening to the Master’s transmissions on every
slot.
l The radio’s data port is shut down if the RTS line is de-asserted (low).
l In this case, the radio needs to be awakened before it can send data to
the Master.
2 LEDs dimmed, radio sleeps every other slot.
3 LEDs dimmed, radio sleeps 2 of 3 slots.
Less 4-31
LEDs dimmed, radio sleeps the number of slots corresponding to the
setting.
Example: When using a setting of 31, the radio sleeps 30 of 31
slots.
Notes
l Low Power Mode is used only in a Multipoint Slave using serial protocol.
l Power savings occur only when the Slave is linked.
l No power savings occur when the Slave is transmitting data.
l Low Power Mode is of little value when a Slave has a constant, high throughput.
LRS455A-C, LRS455A-CE, LRS455-T
User-Reference Manual
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