Multi-purpose Module Footprint
The FM430 Flight Module in Slot 0 forms the base of a stack of interconnected modules above it. The CubeSat Kit Bus -- which normally begins on the FM430 Flight Module as a non-stackthrough connector -- connects all of the user modules Slots 1 upwards to the FM30 Flight Module. All user modules share the same layout. Normal inter-module height is 15mm. With an additional floating connector, larger inter-module heights (e.g. 25mm) can be reliably achieved. Smaller inter-module heights can be achieved through the use of alternate, higher-density connectors.
FM430 Flight Modules can be ordered with an optional, alternate, stackthrough connector, thus allowing user modules to be mounted both above and below the FM430 Flight Module(s). This is typically used in CubeSat Kits larger than the standard 1U (10x10x10cm) format, and provides maximum flexibility in locating payloads and other CubeSat components on either side of the FM430 module(s).
PC/104 Compatibility
PC/104 modules can be mounted within the CubeSat Kit structure because all the modules employ the same mounting points and overall dimensions (nominally 90x97mm). PC/104 modules that mount directly above or below the FM430 Flight Module can derive +5V and GND via optional PC/104-style connectors located on the FM430 Flight Module. PC/104 modules located further away from the FM430 Flight Module can be powered and interconnected via user modules that employ both the PC/104 bus and the CubeSat Kit Bus.
