103
Period”
field
and
apply
the
setting,
the
relay
will
be
trigger
to
form
as
a
open
circuit.
This
function
is
also
available
in
CLI,
SNMP
management
interface.
See
the
following
setting.
Event
Type:
Power
Failure
Power
ID:
Select
Power
1
or
Power
2
you
want
to
monitor.
When
the
power
is
shut
down
or
broken,
the
system
will
short
Relay
Out
and
light
the
DO
LED.
Event
Type:
Like
Failure
Link:
Select
the
port
ID
you
want
to
monitor.
How
to
configure:
Select
the
checkbox
of
the
Ethernet
ports
you
want
to
monitor.
You
can
select
one
or
multiple
ports.
When
the
selected
ports
are
linked
down
or
broken,
the
system
will
short
Relay
Output
and
light
the
DO
LED.
Turn on the relay output
Turn off the relay output
