Configuring the MP Modem to Report GPS and I/O
Data
Rev 1.5 Jul.08
57
Typically
an
analog
input
device
should
be
connected
between
Ground
(pin
10)
and
the
input
port
(Pin
7,
8,
14,
or
15).
Figure 7-4: A sensor wired to Pin 7 (analog input) and Pin 10 (Ground).
The
analog
input
ports
use
a
10
‐
bit
(1024
‐
step)
analog
‐
to
‐
digital
converter
over
a
range
from
0
to
3.45
VDC,
yielding
a
digital
step
resolution
of
0.0032
V.
Example: analog sensor connections
An
I/O
cable
for
an
analog
sensor
requires
a
wire
to
one
of
the
analog
input
pins
(such
as
#7)
and
one
wire
to
the
Ground
pin
(#10).
I/O configuration using AT or 3G Watcher
commands
Once
a
sensor,
gauge,
button,
or
switch
is
physically
connected
to
the
MP
modem,
the
MP
modem
must
be
configured
to
manage
the
input
from,
or
output
to,
the
device.
This
configu
‐
ration
can
be
done
using
either
AT
commands
or
using
3G
Watcher.
For
a
list
of
AT
commands,
please
see
the
MP
3G
Modems
AT
Command
Reference
manual
(document
#2130810).
There
are
separate
windows
in
3G
Watcher
for
configuring
the
analog
and
digital
ports.
~
Summary of Contents for AirLink 595W
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