The
following
illustration
shows
a
modem
connected
to
the
serial
port
of
the
Remote
Supervisor
Adapter
in
the
xSeries
450
on
the
left,
a
modem
connected
to
the
serial
port
of
the
Remote
Supervisor
Adapter
in
the
xSeries
450
on
the
right,
and
a
modem
connected
to
the
remote
administrator
system.
Placing
modems
at
opposite
ends
of
the
ASM
interconnect
network
bus
ensures
that
if
an
ASM
interconnect
connection
in
the
bus
fails,
all
of
the
servers
on
the
ASM
interconnect
network
have
access
to
a
modem
to
forward
system-management
data
to
the
remote
system-management
administrator.
Remote system
management
administrator system
ASM
Interconnect
modules
Note:A Remote
Supervisor Adapter is
required in each server.
Note:The ASM Interconnect module is connected to the RS485 port on the
back panel of the Remote Supervisor Adapter in each server.
xSeries 450
xSeries 450
xSeries 450
Modem
Modem
Modem
30
IBM
xSeries
450
Type
8688:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide