User's Manual
Table Of Contents
- Copyright
- Disclaimer
- Emissions
- _
- Table of Contents
- _
- TS4000 Overview
- _
- Configuration Program
- _
- Serial Port
- _
- Radio Setup
- _
- AirNet Packet Protocol
- Overview
- Configuration Options
- Control and Status Strings
- Master-Slave System Setup
- Polled System with Store and Forward Repeaters
- CSMA System Setup
- _
- GPS Configuration
- _
- Testing
- Remote Diagnostics
- Upgrading Firmware
- _
- Licensing
- _
- Service and Support
- _
- Warranty
- _
- Appendix A - Serial Ports
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- Appendix B – ASCII Character Set
- _
- _
- Appendix C – Control and Status Strings
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- Appendix D – Internal Jumper Block
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TS4000 Radio Modem User’s Manual AirNet Packet Protocol 51
Example: Remote Sites – that hear only Repeater A
Max Message Length for Modbus protocol = 255 bytes
Radio Tx Attack Time = 20ms (this value can be read on the Radio Hardware Screen)
Air Rate = 9.6 kbps (this is configured on the Radio tab)
Coding = Unchecked (this is configured on the Radio tab)
Largest Relay Pkt: Min Idle Slots = Repeater C: Relay Pkts: Min Idle Slots = 2
Slot Time = 1.5 * 20ms = 30ms (this is configured on the Packet General tab)
Packet Transmit Time = [9 * (255 + 14) * 1 / 9.6] + 20 = 273ms
Base packet transmit slots = 273/30 = 10 (rounded up from 9.1)(this value must be rounded up)
CSMA MAC Setup: Data Pkts: Min Idle Slots = 10 + 2 = 12