Specifications
Chapter 3
System Expansion
Expanding
a
system
involves
three
activities:
•
Determining
whether
the
system
can
accommodate a
particular
set
of
supported
options
• Configuring
the
options
appropriately
•
Installing
the
options
in
the
correct positions
within
the
system
This
chapter
describes only how
to
determine
what
options you
can
add
to
your
system. You do
this
by filling
in
a
worksheet
with
the
options
currently
in
your
system
and
those
you
want
to add.
The
information you
need
for
all
options is
in
Table
3-1.
This
chapter
does
not
describe how
to
configure
the
new
options
or
how
to
install
them
into
your
system. Configuring
the
option involves
assigning
a
Control
and
Status
Register
(CSR)
address
and
an
interrupt
vector.
This
is
usually
done by
means
of
switches
or
jumpers
on
the
options themselves.
Your DIGITAL service
representative
configures
the
options
when
installing
them
and
determines
the
proper
placement
of
options
within
the
system
according to specific guidelines.
Self-maintenance
customers
may
obtain
the
information
required
to
configure
and
install
modules
by
ordering
the
Micro VAX Hardware
Information
volume
of
the
KA640 CPU
Systems
Maintenance.
3.1
Determining Expansion Capacity
To
determine
what
you
can
add
to
your
system,
you
must
list
the
options
currently
installed
and
their
power
requirements
in
the
worksheet
provided
at
the
end
ofthis
chapter. Table
3-1
lists
the
information
you
need
for
each
option
supported
in
the
BA213 enclosure.
System Expansion 3-1