High Level Description
The board-to-board connectors are rated for a maximum of 30 socketing cycles. You risk signal degradation after seating and removing the compute module more than 30 times.
Physical input connector, fused for current protection
Physical connectors for a number of module interfaces are provided by the expansion board:
The expansion board provides open collector type level translation and requires pullups on the attached mezzanine cards to the end-user’s desired voltage levels, not to exceed 3.3 VDC.
Expansion board provides additional voltage regulators to enable the level transition and conditioning devices.
Header pins provide the ability to disable booting from the SD Card or from the eMMC image on the module.