Data General AViiON 5000 Series, Customer Documentation

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Appendix A
VME Backplane Connector
Signals and Power Distribution
This appendix describes the VME connector signals J1 and J2; it also describes the
power signals the VME backplane receives from your computer’s power supply.
Figure A–1 shows the backplane signal buses. As shown below, rows A, B, and C of
the J1 connectors and row B of the J2 connectors provide the VMEbus signals to all
board slots. These rows connect to the P1 and P2 board connectors described in the
VMEbus specification. Row B of the J2 connectors provides the user-defined signals
described in the VMEbus specification.
Typical pin layout for
J1 and J2 connectors
VMEbus P1
(rows A, B, and C)
Rows
A B C
VMEbus P2
(row B)
Figure A–1 VME Backplane Bus