v
The
primary
I/O
drawer
must
be
installed
and
connected
to
RIO
port
0
of
the
CEC
drawer.
The
connection
must
be
made
from
RI0
port
0
of
the
CEC
drawer
to
RIO
port
0
of
the
primary
I/O
drawer.
This
connection
is
required
to
make
the
primary
drawer
the
first
drawer
in
the
loop,
which
allows
the
firmware
to
initialize
the
system.
The
following
figures
provide
cabling
examples
for
all
valid
cabling
configurations.
Match
your
configuration
to
the
correct
figure
and
connect
your
RIO
cables
as
shown.
CEC
Drawer
Attached
to
One
I/O
Drawer
A0
A1
R1
R0
CEC Drawer
Primary Drawer
CEC
Drawer
Attached
to
Two
I/O
Drawers
Type
A
A0
A1
R1
R0
CEC Drawer
Secondary
I/O Drawer
R1
R0
Primary
I/O Drawer
Chapter
1.
Reference
Information
47
Summary of Contents for RS/6000 Enterprise Server M80
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Page 30: ...CEC Card Cage Rear of CEC drawer viewed from top cover removed 12 Service Guide...
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