RFD900x Data Sheet
www.rfdesign.com.au
3
Last update 09/07/2018
1
Introduction
The RFD900x radio modem can be loaded with three official firmware releases to achieve different
communication architectures and node topologies. So far, the available firmware versions are:
•
Peer-to-peer (P2P)
•
Asynchronous mesh
•
Multipoint network
This document describes the configuration of the asynchronous, single hop (or fixed forwarding), mesh
network release. This firmware version is not loaded in the RFD900x radio modem by default. This
means, you must download the firmware from the RF Design support website and flash it to the radio.
Use the latest version of the RF Design modem tools (see Useful Links) to update the firmware.
Figure 1-1 depicts an asynchronous non-forwarding mesh network diagram. In this configuration, all
nodes have an equal role. The nodes don’t require synchronisation and communicate with other nodes
within RF range.
Note: Due to the limited number of channels available on the 868 MHz band this firmware may not
operate as intended and is not recommended for 868X modems or reduced band settings less than
915-928MHz on 900X modems
Note: It is not recommended to use the PPM feature with asynchronous firmware. Latency and
reliability will vary with number of nodes and data traffic.
Figure 1-1: Asynchronous non-hopping mesh topology
Node 1
Node 2
Node 3
Node 0
Node 4
All nodes within range
