The Solinst STS Telemetry System collects, stores, and sends data from the remote dataloggers to the Home Station computer. Up to 16MB of data can be stored in the STS non-volatile memory, until a specified time when it 'sends' the data to the Home Station, where all the accumulated data is uploaded. If there are cellular service disruptions, the STS Remote Station will store all the data internally until it has been successfully uploaded to the Home Station computer.
The STS features powerful processors to monitor the battery, control the modem power, perform Built-InTest (BIT) functions and select the datalogger communication channels. It contains a built-in auto-reset breaker for over-current protection of the modem. The STS also has an onboard GPS receiver with internal antenna.
The STS has labeled connections for a 12V sealed lead-acid battery or External Power Regulator Assembly (Power), the modem (RS 232 or Ethernet), modem power (Cellular Modem), and USB Programming Cable (USB). The two-wire connectors for four dataloggers (Datalogger Connections) are also clearly indicated.
When an RRL Network is connected to an STS, the RRL Station connects to the RS-232 connection, and the modem connects to the Ethernet connection. The RRL Home Station is also connected to the radio power (Radio Modem) connection. See Section 4.5 for set up.