8
MRI
‐
120
‐
F4G
‐
PSE/8
Power
Supply
Type
Input
Range
Fuse
Rating
Power
Consumption
Min
Max
Worst
Case
Max
48
VDC
46
VDC
57
VDC
1.5A(F)
123.2W
123.2W
53
VDC
52
VDC
57
VDC
1.5A(F)
182W
240W
Table:
PoE/PoE
Plus
Power
Supply
Specifications
Note
1:
(F)
Denotes
fast
‐
acting
fuse,
(T)
denotes
time
‐
delay
fuse
Note
2:
Power
consumption
varies
based
on
configuration.
10/100Tx
ports
consume
roughly
1W
less
than
fiber
optic
ports
Note
3:
For
continued
protection
against
risk
of
fire,
replace
only
with
same
type
and
rating
of
fuse.
2.4
Wiring
Digital
Output
The
switch
provides
one
digital
output,
also
known
as
Relay
Output.
The
relay
contacts
are
energized
(open)
for
normal
operation
and
will
close
for
fault
conditions.
The
fault
conditions
include
power
failure,
Ethernet
port
link
break
or
other
pre
‐
defined
events
which
can
be
configured.
Wiring
digital
output
is
exactly
the
same
as
wiring
power
input
introduced
in
chapter
2.2.
2.5
Wiring
Earth
Ground
To
ensure
the
system
will
not
be
damaged
by
noise
or
any
electrical
shock,
we
suggest
you
to
make
exact
connection
with
the
switch
with
Earth
Ground.
On
the
back
panel,
there
is
one
earth
ground
screw.
Loosen
the
earth
ground
screw
using
a
screw
driver;
then
tighten
the
screw
after
earth
ground
wire
is
connected.
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