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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