Triguard
SC300E MDO32BNS 32
-
Channel Digital Output Module
Dual
-
slot
hot
repair
Insert
the
new
module
into
the
vacant
hot
repair
slot
ensuring
that
it
engages
properly
in
the
upper
and
lower
guides
in
the
chassis,
the
top
and
bottom
chassis
rails
carry
alignment
marks
to
assist.
Pull
out
the
black
ejection
levers
and
as
the
module
is
pushed
back
engage
the
levers
on
the
chassis
rails.
The
levers
should
then
be
used
to
draw
the
module
into
position,
some
resistance
will
be
felt
as
the
rear
connector
pins
engage.
The
module
should
be
fixed
in
position
with
the
securing
screws.
Operate
the
On/Off
Line
Request
switch
on
the
new
module.
Ascertain
that
the
three
On
Line
LEDs
on
the
new
module
illuminate
for
one
second,
extinguish
for
one
second
and
then
illuminate
permanently
as
the
LEDs
on
the
old
module
extinguish.
This
sequence
indicates
that
the
new
module
has
been
put
on
-
line
and
the
old
module
taken
off
-
line.
If
the
LEDs
on
the
new
module
do
not
illuminate
either
the
first
or
second
time
or
fail
to
remain
illuminated,
the
new
module
must
be
regarded
as
faulty.
The
old
module
LEDs
should
remain
illuminated
indicating
that
it
is
still
on
-
line.
If
the
new
module
is
serviceable
slacken
the
screws
on
the
old
module
and
use
its
ejection
levers
to
remove
it
from
the
Chassis.
NOTE
If
the
replacement
board
comes
on
-
line
but
the
health
LED
is
extinguished
a fault
still
exists.
If
the
failure
is
LFD
this
may
indicate
a field
fault
(open
circuit)
and
the
field
loops
should
be
investiga
ted.
Kommentare zu diesen Handbüchern