IBM 8676 Hardware Maintenance Manual - Page 71

Testing, chain

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4 IN OUT 3 IN OUT 2 IN OUT 1 IN OUT Video Mouse Keyboard Attention: Do not allow the pins of the C2T cable connectors to touch the server chassis. 3. Connect a C2T interconnect cable from the C2T (In) connector on the first server in the chain (server 1 in the illustration, typically the bottom server in the rack) to the C2T (Out) connector on the second server in the chain (server 2 in the illustration). The connectors on the ends of the cable are different and have different colors (black for Out and white for In) to prevent you from connecting them to the wrong connectors on the servers. Repeat this step until all the servers in the chain are connected. You can connect up to 42 servers in this manner. 4. Connect a C2T breakout cable to the C2T (Out) connector on the first server in the chain (server 1 in the illustration). 5. Connect the monitor, keyboard, and pointing device to the connectors on the C2T breakout cable. The keyboard and pointing-device connectors on the cable have icons to help you identify them. 6. Turn on the servers and test the chain, using the procedure in the following section. When you add, remove, or replace servers or change cables in the chain, it is possible for the select LED on more than one server to be lit. Press the select button on any server in the chain to turn off the select LEDs on all but the selected server. If you are using a flat-panel monitor, you might need to adjust the image lock on the monitor. Press the select button on one of the middle servers in the chain; then, adjust the image lock on the monitor. For more information about adjusting the image lock, see the documentation that comes with your monitor. Testing the C2T chain After cabling the C2T chain, test the monitor, keyboard, and pointing device to ensure that they work with each server in the chain. Complete the following steps to test the chain: 1. With the servers and the monitor turned on, press the select button on server 1 in the chain. 2. Verify that the monitor is working properly. 3. Use the pointing device (mouse) to start an application. Chapter 4. Customer replaceable units 61

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IN
OUT
IN
OUT
IN
OUT
4
3
2
1
Video
Keyboard
Mouse
IN
OUT
Attention:
Do
not
allow
the
pins
of
the
C2T
cable
connectors
to
touch
the
server
chassis.
3.
Connect
a
C2T
interconnect
cable
from
the
C2T
(In)
connector
on
the
first
server
in
the
chain
(server
1
in
the
illustration,
typically
the
bottom
server
in
the
rack)
to
the
C2T
(Out)
connector
on
the
second
server
in
the
chain
(server
2
in
the
illustration).
The
connectors
on
the
ends
of
the
cable
are
different
and
have
different
colors
(black
for
Out
and
white
for
In)
to
prevent
you
from
connecting
them
to
the
wrong
connectors
on
the
servers.
Repeat
this
step
until
all
the
servers
in
the
chain
are
connected.
You
can
connect
up
to
42
servers
in
this
manner.
4.
Connect
a
C2T
breakout
cable
to
the
C2T
(Out)
connector
on
the
first
server
in
the
chain
(server
1
in
the
illustration).
5.
Connect
the
monitor,
keyboard,
and
pointing
device
to
the
connectors
on
the
C2T
breakout
cable.
The
keyboard
and
pointing-device
connectors
on
the
cable
have
icons
to
help
you
identify
them.
6.
Turn
on
the
servers
and
test
the
chain,
using
the
procedure
in
the
following
section.
When
you
add,
remove,
or
replace
servers
or
change
cables
in
the
chain,
it
is
possible
for
the
select
LED
on
more
than
one
server
to
be
lit.
Press
the
select
button
on
any
server
in
the
chain
to
turn
off
the
select
LEDs
on
all
but
the
selected
server.
If
you
are
using
a
flat-panel
monitor,
you
might
need
to
adjust
the
image
lock
on
the
monitor.
Press
the
select
button
on
one
of
the
middle
servers
in
the
chain;
then,
adjust
the
image
lock
on
the
monitor.
For
more
information
about
adjusting
the
image
lock,
see
the
documentation
that
comes
with
your
monitor.
Testing
the
C2T
chain
After
cabling
the
C2T
chain,
test
the
monitor,
keyboard,
and
pointing
device
to
ensure
that
they
work
with
each
server
in
the
chain.
Complete
the
following
steps
to
test
the
chain:
1.
With
the
servers
and
the
monitor
turned
on,
press
the
select
button
on
server
1
in
the
chain.
2.
Verify
that
the
monitor
is
working
properly.
3.
Use
the
pointing
device
(mouse)
to
start
an
application.
Chapter
4.
Customer
replaceable
units
61