7.1 DPU Backplane Jumpers
7.1.2 ACU, VMEbus, and I/O Jumpers
As shown in Figure 7–3, there are jumpers at the top of the backplane for the
ACU, IO00 (MVIB), and each I/O slot (two shown). The jumpers over the ACU
and IO00 slots should be installed exactly as shown. As MPVMEbus I/O devices
are added and removed, corresponding jumpers above each I/O slot must be added
and removed.
Each I/O slot, I/O01 through I/O14, has a set of pins above it which allow certain
MPVMEbus signals to be jumpered past those slots which are not occupied
by PCBs. Going from right to left, ensure that the set of three jumpers have
been removed from above all I/O01 through I/O14 slots that are occupied by
MPVMEbus PCBs.
Conversely, ensure that jumpers are installed above all unoccupied I/O slots up
to, but not including, the slot containing the last I/O PCB. Slots after (to the left
of) the last occupied I/O slot may or may not have the jumpers installed. It is of
no consequence.
Figure 7–3 DPU Backplane Jumpers
A
B
C
D
E
F
A
B
C
D
E
F
E
B
ACU
IO 00
P02
E
B
Slot
ACU Slot
MKV−040000314−21−RAGS
IO 01
P03
E
C
A
B
C
D
E
F
Any Unoccupied
I/O Slot
IO 02
P03
E
C
A
B
C
D
E
F
Any Occupied
I/O Slot
VME Interface
Front−End
7–4 Backplane Jumpers and Upgrading PE Arrays
