User`s guide

The VAX 6000 Platform Overview

1.4 Conﬁgurations

The XMI is the 64-bit system bus that interconnects the processors,

memory modules, and I/O adapters. A system can be easily

upgraded from one model to another. Processor models cannot

be mixed in a system. The MS62A and MS65A memories, however,

can be used together.

Figure 1–3 System Architecture

KDM70

CIXCD

DEMNA

ETHERNET

AND CD SERVER

XMI

MEMORY

PROCESSORS

msb-0310-90

DISKS

AND TAPES

STAR

COUPLER

VAXBI

DWMBB/A

DWMBB/B

OPTION

Refer to Digital’s Systems and Options Catalog for the available

conﬁgurations.

The VAX 6000 platform is a 60-inch cabinet that includes one 14-slot high-

bandwidth internal system bus backplane (XMI). An in-cabinet 12-slot

VAXBI backplane is optional.

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