Space Asics' Products / ETM-RTU
Key Information about ETM-RTU
A miniaturized Remote Terminal Unit (RTU) was developed, based on the Essential Telemetry (ETM) ASIC and an aluminium stand-alone housing, equipped with connectors and mounting feet.
The unit is capable of supporting the ETM functionalities on board spacecraft and allows for:
- Power to be provided to the ETM device and the associated support electronics.
- Interfacing measurement channels of the ETM ASIC to the mini spacecraft.
- Interfacing the PacketWire and CAN communication interfaces of the ETM ASIC to the OBC or any other subsystem.
- Time information signals to be provided to the ETM ASIC.
The miniaturized ETM-RTU autonomously performs the following key tasks as soon as power is applied:
- Sequential scanning and sampling of 32 differential Analog inputs, 16 differential Digital inputs and 32 Temperature Measurements
- Conversion of the Analog inputs to Digital values by a 12-bit ADC with built-in Rad-Hard Voltage Reference)
- Format the sampled data into Space Packets
- Sampling time reference included in packet
- Output the data on the built-in CAN or PacketWire IF
ETM-RTU Electrical Block Diagram
ETM-RTU Closed Cover
ETM-RTU Open Cover