IBM 8676 Hardware Maintenance Manual - Page 16

Power-cord, connector, System-error, Select, Tx/Rx, Ethernet, connectors, Power, Serial

Page 16 highlights

Rear view The following illustration shows the connectors and LEDs on the rear of the server. Power-cord connector System-error LED Link LEDs Select LED Ethernet 2 connector C2T IN connector IN Serial connector C2T OUT connector OUT Power LED USB 3 connector Ethernet 1 connector ISM connector Power-cord connector: Connect the power cord to this connector. System-error LED: When this LED is lit, it indicates that a system error has occurred. An LED on the Light Path Diagnostics panel on the system board is also lit to help isolate the error. A system-error LED is also on the front of the server. Select LED: When this LED is lit, it indicates that this server is using the monitor, keyboard, and pointing device in a C2T chain. If the server is not part of a C2T chain, this LED remains lit. A select LED is also on the front of the server. Tx/Rx LEDs: These LEDs are on the dual Ethernet connector. When the up-arrow or down-arrow LED is lit, it indicates that there is activity between the server and the network attached through the upper or lower connector. Ethernet connectors: Use these connectors to connect the server to a network. USB connector: Connect a USB device to this connector. ISM connector: Use this connector to connect the server to an optional Remote Supervisor Adapter. Power LED: When this LED is lit, it indicates that ac and dc power are present in the server. When this LED is flashing, it indicates that the server is in Standby mode. When this LED is off, ac power is not present, or the power supply or the LED itself has failed. A power LED is also on the front of the server. Note: If this LED is off, it does not mean that there is no electrical power in the server. The LED might be burned out. To remove all electrical power from the server, you must disconnect the power cord from the electrical outlet. C2T Out connector: Connect a breakout cable to this connector, or use this connector to connect the server to the C2T In connector of another server in a C2T chain. Serial connector: Connect a 9-pin serial device to this connector. C2T In connector: Use this connector to connect the server to the C2T Out connector of another server in a C2T chain. 6 xSeries 335 Type 8676, Type 8830: Hardware Maintenance Manual and Troubleshooting Guide

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Rear
view
The
following
illustration
shows
the
connectors
and
LEDs
on
the
rear
of
the
server.
Power LED
Select LED
System-error LED
Link LEDs
ISM connector
USB 3 connector
C2T OUT
connector
C2T IN
connector
Serial connector
Power-cord
connector
Ethernet 2 connector
Ethernet 1 connector
IN
OUT
Power-cord
connector:
Connect
the
power
cord
to
this
connector.
System-error
LED:
When
this
LED
is
lit,
it
indicates
that
a
system
error
has
occurred.
An
LED
on
the
Light
Path
Diagnostics
panel
on
the
system
board
is
also
lit
to
help
isolate
the
error.
A
system-error
LED
is
also
on
the
front
of
the
server.
Select
LED:
When
this
LED
is
lit,
it
indicates
that
this
server
is
using
the
monitor,
keyboard,
and
pointing
device
in
a
C2T
chain.
If
the
server
is
not
part
of
a
C2T
chain,
this
LED
remains
lit.
A
select
LED
is
also
on
the
front
of
the
server.
Tx/Rx
LEDs:
These
LEDs
are
on
the
dual
Ethernet
connector.
When
the
up-arrow
or
down-arrow
LED
is
lit,
it
indicates
that
there
is
activity
between
the
server
and
the
network
attached
through
the
upper
or
lower
connector.
Ethernet
connectors:
Use
these
connectors
to
connect
the
server
to
a
network.
USB
connector:
Connect
a
USB
device
to
this
connector.
ISM
connector:
Use
this
connector
to
connect
the
server
to
an
optional
Remote
Supervisor
Adapter.
Power
LED:
When
this
LED
is
lit,
it
indicates
that
ac
and
dc
power
are
present
in
the
server.
When
this
LED
is
flashing,
it
indicates
that
the
server
is
in
Standby
mode.
When
this
LED
is
off,
ac
power
is
not
present,
or
the
power
supply
or
the
LED
itself
has
failed.
A
power
LED
is
also
on
the
front
of
the
server.
Note:
If
this
LED
is
off,
it
does
not
mean
that
there
is
no
electrical
power
in
the
server.
The
LED
might
be
burned
out.
To
remove
all
electrical
power
from
the
server,
you
must
disconnect
the
power
cord
from
the
electrical
outlet.
C2T
Out
connector:
Connect
a
breakout
cable
to
this
connector,
or
use
this
connector
to
connect
the
server
to
the
C2T
In
connector
of
another
server
in
a
C2T
chain.
Serial
connector:
Connect
a
9-pin
serial
device
to
this
connector.
C2T
In
connector:
Use
this
connector
to
connect
the
server
to
the
C2T
Out
connector
of
another
server
in
a
C2T
chain.
6
xSeries
335
Type
8676,
Type
8830:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide