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5.2 Cable Interfaces A SCSI cable is required for the PGSC Display and Control (D&C) functions connected with the operation of the ESC. Specific wiring pin function assignments will be defined in ICD A-21332 5.3 Display and Control Interfaces Display and Control (D&C) functions are to be accomplished using the ESC PGSC and cable. 5.4 Electrical Power Interfaces Before installatin in the Orbit, power will be supplied to the payload using payload-provided or SSP provided Electrical Ground Support Equipment (EGSE), as negotiated in the LSSP. On Orbit Payload power activation/deactivaion will be performed via crew control. ESC and PGSC power requirements on-orbit are identified in the following table. Orbiter pre- Ascent ----- On-orbit operation ------ Descent middeck launch Pre-docked Docked Post- power docked ESC N/A N/A 35 W 35 W 35 W N/A PGSC N/A N/A 40 W 40 W 40 W N/A (65 W) (65 W) (65 W) TOTAL N/A N/A 75 W 75 W 75 W N/A 5.5 Command Interfaces Files will be uplinked from the KidSat POCC to the PGSC which will be used to control the ESC during on-orbit operations. 5.6 Telemetry and Data Interfaces Data Files containing ESC digital image data will downlinked via Ku-bang KIDSAT 6 04/20/95