Payload Interface Unit (PIU)

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