Req. 5.2.2.4: "Discrete Signals from the LAT to the SC"

The SIU shall be capable of generating up to 2 primary and 2 redundant monitor signals to the SC for communicating status. Note that, due to having a cross-strapped A and B side, the spacecraft can receive these as 4 primary and 4 redundant signals.

Basis (help)

[2] (3.2.5.3.4)

2: "LAT Instrument - Spacecraft Interface Requirements Doc." (NASA 433-IRD-0001)

3.2.5.3.4: "Discrete Monitor Signals"

The SC shall provide 4 primary and 4 redundant discrete LVDS monitor lines for monitoring configuration status of the LAT. The LAT shall provide and install all associated sensors and wiring that attach to the LAT. All discrete monitor signals shall be level.

Context (help)

Test(s)

005: Vehicle Signals Interface Verification

This test shall verify the timing and processing of all signals from the Spacecraft, as defined in the LAT-SC ICD [28].