SA380TX Configuration
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The unit can be upgraded to this version of firmware if required using dUpgrade, following the instructions found in the dUpgrade User Guide.
Alternatively the firmware can also be upgraded using USB, following the SA380TX Firmware Upgrade using USB instructions.
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To configure the VTI21 over RS485, please follow the instructions under the heading "Configuration on RS485" in the VTI21 Configuration guide.
After configuring the RS485 connection, each reported channel needs to be assigned to an analogue channel using the settings shown below.
See the table in the Aster VTI21 Outputs for the units and change threshold for each channel.
Installation
To monitor the performance of an Aster, the current flowing to the REC. 1 connections on the receiver must be monitored.
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The Aster VTI21 sensor can output the following quantities when monitoring Aster receivers.
| Quantity | Units | Change Threshold | 4-20 mA | RS485 |
| CH1_Aster | Hz | 1 |
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| CH1_ICent | uA | 10 | ||
| CH1_Freq | Hz | 1 | ||
| CH1_ITot | uA | 10 | ||
| CH1_1700 | uA | 10 | ||
| CH1_2000 | uA | 10 | ||
| CH1_2300 | uA | 10 | ||
| CH1_2600 | uA | 10 | ||
| CH1_FFT | Not normally acquired | |||
| CH2_Aster | Hz | 1 | ||
| CH2_ICent | uA | 10 | ||
| CH2_Freq | Hz | 1 | ||
| CH2_ITot | uA | 10 | ||
| CH2_1700 | uA | 10 | ||
| CH2_2000 | uA | 10 | ||
| CH2_2300 | uA | 10 | ||
| CH2_2600 | uA | 10 | ||
| CH2_FFT | Not normally acquired |