Meanings of uncapped jumpers on the AUX board in different versions

There are two situations:
Situation 1: PCB logic version 100 for R400C004 and earlier versions:
VER.B has only the J2, J3, and J4 jumpers. Bit 1 indicates that a jumper is uncapped.
VER.D has the J2, J3, J4, J15, J16, and J17 jumpers, among which only J2, J3, and J4 are valid. The jumpers from top to bottom are J4 > J3 > J2. Bit 1 indicates that a jumper is uncapped.
PCB logic version 130 or later versions for R5 and later versions
VER.B has only the J2, J3, and J4 jumpers. Bit 0 indicates that a jumper is uncapped.
VER.D has the J2, J3, J4, J15, J16, and J17 jumpers, all of which are valid. The jumpers from top to bottom are J17 > J16 > J15 > J4 > J3 > J2. Bit 0 indicates that a jumper is uncapped.

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