42
Lenovo ThinkSystem NE2552E Flex Switch: Installation Guide
Accessing the Switch Through the Serial-Port Interface
The
serial
port
provides
basic
communication
RS
‐
232
serial
‐
data
transfer
through
a
terminal
emulation
program
(such
as
Hyperterminal).
Because
messages
from
the
power
‐
on
self
‐
test
(POST)
and
all
initialization
information
are
transmitted
through
the
serial
port,
you
can
use
the
serial
port
to
log
in
to
the
switch
and
access
and
configure
the
internal
switching
firmware.
To
log
in
to
the
switch,
complete
the
following
steps:
1.
Connect
one
end
of
the
specifically
designed
serial
cable
that
comes
with
your
device
into
the
RS
‐
232
port
and
connect
the
other
end
to
the
management
station.
For
additional
information,
see
2.
On
the
management
station,
open
a
console
window
and
make
sure
that
the
serial
port
is
configured
with
the
following
settings:
9600
baud
8
data
bits
No
parity
1
stop
bit
No
flow
control
3.
When
prompted,
enter
your
user
name
and
password.
When
logging
in
to
a
switch
for
the
first
time,
the
default
switch
administrator
user
name
is
USERID
,
and
the
default
password
is
PASSW0RD
(where
the
sixth
character
is
the
number
zero,
not
the
letter
O).
The
User
ID
and
password
fields
are
case
‐
sensitive.
For
security
purposes,
you
will
be
prompted
to
change
the
administrator
password
after
the
first
successful
login.
Otherwise,
if
you
have
an
assigned
user
account,
use
your
assigned
user
name
and
password.
The
serial
port
is
compatible
with
the
standard
16550
Universal
Asynchronous
Receiver/Transmitter
(UART)
protocol.
The
RS
‐
232
serial
port
is
enabled
by
default.
