CHAPTER 1Introduction18Adcon's Telemetry NetworkThe A850 represents the link between the various RTUs and thePC(s) used for evaluating the sensor data and for transmitting con-trol commands, respectively..Figure 1. Schematics of a Remote Telemetry NetworkTo build a Remote Telemetry Network you need the following:• one or more Remote Telemetry Units (RTUs) A720, A723,A731, A732, A733, A733GSM or A740,