MultiHop networks are made up of one master radio and many repeater and slave radios.
The MultiHop networks are self-forming and self-healing networks constructed around a parent-child communication relationship. The MultiHop Radio architecture creates a hierarchical network of devices; a MultiHop radio is either a master radio, a repeater radio, or a slave radio.
MultiHop Master Radio. The master radio controls the overall timing of the network and is always the parent device for other MultiHop radios. The host system connects to this master radio.
MultiHop Repeater Radio. When a MultiHop radio is set to repeater mode, it acts as both a parent and a child radio. The repeater receives data packets from its parent, then re-transmits the data packet to the children within the repeater’s network. The incoming packet of information is re-transmitted on both the radio link and the local serial link.
MultiHop Slave Radio. The slave radio is the end device of the MultiHop radio network. A radio in slave mode does not re-transmit the data packet on the radio link, only on the local serial (wired) bus.
In this configuration, the Gateway is the master of the wireless network. This network may be configured using the User Configuration Tool (UCT) and RS-485 to USB adapter cable. The UCT is used to map inputs and outputs between Nodes and Gateways.
To mix Performance radios with DX80 radios, the Performance radios must operate in 250 mW mode, not 1 Watt mode. To comply with federal regulations, the 150 mW radios and 1 Watt radios communicate differently.
All Performance models offer the ability to select between 250 mW and 1 Watt operation using the DIP switches.
The 150 mW, 250 mW, and 1 Watt networks operate when collocated, but verify the antenna separation distance between a Gateway and Node or between two Gateways are at least 10 feet apart.
In this system, a DX70 pair is used to map I/O in a simple one-to-one configuration. DX70 kits are configured at the factory and require no additional set up by the user.
Many different configurations are possible using combination of Gateways, Nodes, Expanded Remote I/O devices, GatewayPros, Ethernet Bridges, and host systems. The System Layouts (p/n 133601) lists several examples of such configurations, including cabling and switch requirements.