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Payload Umbilical Test Unit

The Payload Umbilical Test Unit (PUTU) is an element of the ICM spacecraft testing at Naval Research Laboratory (NRL) in Washington D.C. The PUTU also is used for launch support testing at Kennedy Space Center (KSC). The PUTU simulates the ICM spacecraft for testing and verifying of the KSC T-0 umbilical for CITE tests at the Vertical Processing Facility, and for testing and verifying of the T-0 umbilical and PSEUDO T-0 umbilical at the Orbiter Launch Pad.

Block Diagram

Front
(Click for enlarge)

Simulates

Spacecraft Power Load
Receives Uplink Commands
Transmits Downlink Telemetry
Receives Ordnance Reset Pulse

(Click for enlarge)