Installation manual

501-1354 5-Slot Backplane
Memory board options plug into connector J3, Slots 4 and 5, on the 501-1354 backplane. The Sun P2
bus connects Slots 1, 4, and 5 as shown below.
J102 Row A Connects to J403 Row A and J503 Row A
J102 Row C Connects to J403 Row C and J503 Row C
J103 Row B Connects to J403 Row B and J503 Row B
Cardcage Slots 4 and 5 share a private bus that connects signals between J2/P2, Row A and J2/P2,
Row C. These slots are used with 6U VMEbus boards.
The function of the backplane jumpers is shown below.
JUMPER CONNECTS
P2xx BG0-3IN to BG0-3Out and IACKIN to IACKOUT on slot 2
P3xx BG0-3IN to BG0-3Out and IACKIN to IACKOUT on slot 3
P4xx BG0-3IN to BG0-3Out and IACKIN to IACKOUT on slot 4
501-1439, 501-1598, and 501-1832 12-Slot
Backplanes
The Sun P2 bus connects cardcage Slots 1 through 7 to each other, and cardcage Slots 10, 11, and 12
to each other.
In addition to the Sun P2 bus and the VMEbus, the 12-slot backplane has a private Internal bus that
connects Slots 1, 2, and 3 as shown below.
J101 Row A Connects to J201 Row A and J301 Row A
J101 Row B Connects to J201 Row B and J301 Row B
J101 Row C Connects to J201 Row C and J301 Row C
J102 Row B Connects to J202 Row B and J302 Row B
J1/P1, Rows A, B, and C, on Slots 1, 2, and 3 are not connected to the VMEbus. Boards that use the
VMEbus cannot be used in Slots 1, 2, or 3. J2/P2, Row B, is connected between Slots 1 through 7.
Sun4/I: Backplane - Backplane Information
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