MTX
‐
3G
‐
JAVA
Family
www.mtx
‐
terminals.com
www.mtxm2m.com
2015/10
v1.6
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85
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109
MTX
M2M®
by
MATRIX
ELECTRONICA
S.L.U
9.
Modem
installation
This
chapter
gives
you
advice
and
helpful
hints
on
how
to
integrate
the
MTX
‐
3G
‐
JAVA
Terminal
into
your
application
from
a
hardware
perspective.
9.1
Where to install the modem
There
are
several
conditions
which
need
to
be
taken
into
consideration
when
designing
your
application
as
they
might
affect
the
modem
and
its
function.
They
are:
9.1.1
Environmental
conditions
The
modem
must
be
installed
so
that
the
environmental
conditions
stated
in
the
Technical
Data
chapter
such
as
temperature,
humidity
and
vibration
are
satisfied.
Additionally,
the
electrical
specifications
in
the
Technical
Data
section
must
not
be
exceeded.
9.1.2
Signal
strength
The
modem
has
to
be
placed
in
a
way
that
ensures
sufficient
signal
strength.
To
improve
signal
strength,
the
antenna
can
be
moved
to
another
position.
Signal
strength
may
depend
on
how
close
the
modem
is
to
a
radio
base
station.
You
must
ensure
that
where
you
intend
to
use
the
modem
is
within
the
network
coverage
area.
Degradation
in
signal
strength
can
be
the
result
of
disturbance
from
another
source;
for
example,
an
electronic
device
in
the
immediate
vicinity.
More
information
about
possible
communication
disturbances
can
be
found
in
section
9.3.5
.
When
an
application
is
completed,
you
can
verify
the
signal
strength
by
issuing
the
AT
command
AT+CSQ.
Tip!
Before
installing
the
modem,
use
an
ordinary
mobile
telephone
to
check
a
possible
location
for
it.
In
determining
the
location
for
the
modem
and
antenna,
you
should
consider
signal
strength
as
well
as
cable
length.
9.1.3
Connections
of
components
to
MTX
‐
3G
‐
JAVA
Terminal
The
user
is
responsible
for
the
final
integrated
system.
If
not
correctly
designed
or
installed,
external
components
may
cause
radiation
limits
to
be
exceeded.
For
instance,
improperly
made
connections
or
improperly
installed
antennas
can
disturb
the
network
and
lead
to
malfunctions
in
the
modem
or
equipment.
9.1.4
Network
and
subscription
Before
your
application
is
used,
you
must
ensure
that
your
chosen
network
provides
the
necessary
telecommunication
services.
Contact
your
service
provider
to
obtain
the
necessary
information.
•
If
you
intend
to
use
SMS
in
the
application,
ensure
this
is
included
in
your
(voice)
subscription.
•
Consider
the
choice
of
supplementary
services
