Each
ESM
has
an
SFP
module
input
port
and
an
SFP
module
output
port.
When
you
cable
EXP100s
together,
if
you
connect
the
input
ports
to
the
output
ports,
it
can
improve
diagnostic
capability.
Refer
to
your
DS4000
storage
subsystem
documentation
and
the
Fibre
Channel
Cabling
Instructions
for
cabling
connections
between
input
and
output
ports.
Cabling
the
power
supply
Complete
the
following
steps
to
connect
the
power
supply
cable:
1.
Wrap
the
strain-relief
clamp
around
the
power
cable
approximately
20
cm
(8
in.)
from
the
power
supply
connection
end.
2.
Attach
the
power
supply
nut
and
tighten
it
securely.
3.
Connect
the
power
cable
to
the
power
supply.
4.
Plug
the
supply
power
cable
into
a
properly
grounded
electrical
outlet.
For
maximum
protection
against
power
loss,
connect
each
of
the
two
power
supplies
to
a
different
power
source.
5.
Continue
with
for
the
initial
startup
of
the
expansion
enclosure.
Turning
the
EXP100
on
and
off
When
you
turn
on
and
turn
off
the
EXP100,
be
sure
to
use
the
startup
sequence
in
this
section.
Turning
on
the
EXP100
Before
you
turn
on
the
EXP100
or
any
other
part
of
the
storage
subsystem,
read
the
following
information:
58
IBM
TotalStorage
DS4000
EXP100
Storage
Expansion
Enclosure:
Installation,
User’s
and
Maintenance
Guide
Summary of Contents for TotalStorage EXP100
Page 2: ......
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