Payload Interface Unit (PIU) is the on-board equipment used for relaying telecommands received from on-board computer to the Ku-band and X-band equipment respecting to the equipment interface. PIU is also tasked for collecting telemetries from the Ku-band and X-Band Payload equipment and sending them to on-board computer.
Technical Specifications | |
---|---|
Controlled and monitored Payload equipment | Active Equipment |
Switch Matrices | |
Antenna Deployment and Positioning Mechanism | |
Redundancy | Internal Redundancy |
Satellite Platform Data Interface | MIL-STD-1553B |
Satellite Power Bus Interface | 100V DC |
Payload Equipment Interface | D-Sub Connectors |
Nominal Input Voltage | 100V ± 3V |
Maximum Operational Voltage | 110V |
Low Voltage Turn-off | 85V ± 3V |