Owner's manual
MSR04X
I
October
200
5
–
Issue 8
5
Triguard
SC300E MSR04XI Serial Communications Module RS232
TECHNICAL
DESCRIPTIO
N
PHYSICAL
The
Serial
Communications
Module
is
a 9U
high
PCB
with
integral
front
panel
and
front
and
rear
connectors;
a plug
-
in
daughter
board
carries
the
RS232
interface
circuits.
Figure
1
-
1
shows
the
general
layout,
location
of
the
connectors
and
front
panel
components.
Mechanical coding blocks
All
Input/Output
modules
carry
two
mechanical
coding
blocks
equipped
with
pins
which
mate
with
holes
in
corresponding
blocks
in
the
chassis
and
prevent
the
module
being
inserted
into
the
wrong
slot.
The
pins
in
the
module
blocks
are
factory
installed
in
a
pattern
determined
by
the
module
and
corresponding
set
screws
are
removed
from
the
chassis
coding
blocks
to
enable
fitting.
Unused
holes
are
plugged
with
set
screws.
The
chassis
mechanical
coding
block
configuration
for
this
module
is
shown
in
Figure
2
-
1
.
Figure
2
-
1 Chassis
mechanical
coding
block
configurations
Links
The
PCB
has
a total
of
nine
links.
For
the
top
section
of
the
PCB
the
links
are
located
and
configured
as
follows:
Three
LK1
links
(3
-
pin)
located
approximately
80mm
down
from
the
top
o
f
the
module,
not
user
configurable,
link
not
fitted.
Three
LK2
links
(8
-
pin)
located
approximately
210mm
down
from
the
top
of
the
module
-
Module
ID
links
which
should
always
be
fitted
(refer
to
Figure
1
-
1).