P2 I/O Selection - Motorola MVME5500 Installation And Use Manual

Ethernet 2, PMC/SBC Mode, and P2 I/O Selection Headers (J6, J7, J28, J32, J34, J97 – J110)
SBC/IPMC712 mode, install a jumper across pins 2-3 for J32 and install a
jumper across pins 1-2 for J28.
Warning When J28 is configured for SBC/IPMC mode, –12V is supplied to P2 pin
!
A30. If there is an incompatible board plugged into this P2 slot, damage
may occur.
Warning
When J32 is configured for SBC/IPMC mode, +12V is supplied to P2 pin
C7. If there is an incompatible board plugged into this P2 slot, damage may
occur.

P2 I/O Selection

Nine 3-pin planar headers (J102 –J110) are for P2 I/O selection. Install
jumpers across pins 1-2 on all nine headers when in PMC mode. Install
jumpers across pins 2-3 on all nine headers when in SBC/IPMC761 or
SBC/IPMC712 mode to connect the extended SCSI signals to P2.
http://www.motorola.com/computer/literature
1
1-9