Lan-module indicators and input/output connectors – IBM BladeCenter T Type 8720 User Manual
Page 28
LAN-module
indicators
and
input/output
connectors
The
LAN
module
is
a
hot-swap
module
that
is
installed
on
the
rear
of
the
BladeCenter
T
unit
and
is
held
in
place
by
captive
thumbscrews.
The
LAN
module
provides
the
electrical
and
mechanical
interface
to
the
BladeCenter
T
unit
for
the
two
local
area
network
(Ethernet)
connections,
as
driven
from
each
management
module,
and
the
telco
external
alarms.
This
module
contains
two
RJ-45
connectors
with
LEDs
and
one
DSUB
15P
telco
alarm
connector.
2
Alarms
1
Ethernet link LED
Ethernet activity LED
Alarms connector
Remote management
and console (Ethernet)
Thumbscrews
LAN-module
LEDs:
These
LEDs
provide
status
information
about
the
LAN
connection:
v
Ethernet
link:
When
this
green
LED
is
lit,
there
is
an
active
connection
through
the
port
to
the
network.
v
Ethernet
activity:
When
this
green
LED
is
flashing,
it
indicates
that
there
is
activity
through
the
port
over
the
network
link.
LAN-module
connectors:
v
Remote
management
and
console
(Ethernet)
connectors:
The
LAN
module
provides
two
Ethernet
RJ-45
connectors.
The
BladeCenter
T
LAN
module
contains
two
10/100
Mb
Ethernet
connectors
that
provide
the
remote
connections,
driven
from
each
management
module,
to
the
network
management
station
on
the
network.
Use
these
ports
for
remote
management
and
remote
console.
The
network
management
station,
through
these
connectors,
can
access
control
functions
running
in
the
management
module,
the
service
processor
on
each
blade
server,
or
within
each
switch
module.
However,
it
cannot
use
these
ports
to
communicate
with
application
programs
running
in
the
blade
servers.
The
network
management
station
must
direct
those
communications
through
a
network
connected
to
the
external
ports
in
the
I/O
modules
in
the
BladeCenter
T
unit.
v
Alarms
connector:
The
LAN
module
provides
one
telco
DB15
alarms
connector
(male)
for
critical,
major,
and
minor
telco
alarms.
Each
of
the
alarms
has
a
relay
that
enables
multiple
system
alarm
indicators
to
be
daisy-chained
together.
shows
the
pinouts
for
the
telco
alarms
connector.
Alarms
1
8
9
15
18
BladeCenter
T
Type
8720
and
8730:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide