User Manual

RF500 Wireless Monitoring System Overview

Meshing Transmitters and Backbone Transmitters

Whenever a RF512 or RF513 transmitter is powered by a RF520 AC adaptor it will become a Meshing unit and will form

part of the radio mesh network. However if external power is removed it will revert back to a regular Transmitter.

RF512 and RF513 have the option to become “Network Backbone” units or routers which will intelligently forward

messages on behalf of other transmitters. This option is enabled using a setup option in the Gateway. Backbone

Transmitters will form part of the mesh network continuously even when not powered by a RF520. Due to the very large

drain on the internal battery, Backbone Transmitters must be powered using a RF520 mains adaptor. The internal battery

is considered only as a backup battery for Backbone Transmitters.

Automatic Data Retrieval (ADR)

The fact that transmissions between Transmitters and the RF500 Gateway are acknowledged ensures that the

Transmitters know exactly which data records have been successfully transferred to the Gateway and those which must

be re-transmitted. Therefore if the Gateway is temporarily unable to receive or transmit messages for whatever reason,

data will not be lost during this period. When the Gateway is again able to receive and transmit properly the Transmitters

will re-transmit those records which were unable to be transmitted during the period of outage.

This re-transmission of data happens automatically without user intervention and results in seamless graphical and

tabular data with no gaps.