MP881W Modem User Guide
16
2130808
Required equipment
Package contents
Each
MP
modem
box
contains:
•
The
MP
modem
•
A
mounting
template
•
Mounting
screws
and
washers
•
An
installation
and
documentation
CD
•
A
power
harness
If
any
of
these
are
missing,
please
contact
your
account
manager.
Additional required equipment
To
install
the
MP
modem,
you
need
the
power
harness
(or
existing
MP
750
or
MP
775
power
harness),
or
an
AC/DC
adapter
(for
office
installations),
mounting
template,
and
the
screws
and
washers
that
come
with
the
device.
You
may
also
require:
•
A
USB,
Ethernet,
or
9
‐
pin
serial
cable.
This
must
be
long
enough
to
run
from
the
mounting
location
of
the
MP
modem
to
the
computer.
·
The
maximum
length
for
the
serial
or
USB
cable
is
5.5
m
(18
feet).
The
USB
cable
must
have
a
Type
A
male
connector
at
the
computer
end
and
a
Type
B
male
connector
at
the
MP
modem
end.
·
The
Ethernet
cable
should
have
RJ
‐
45
connectors.
The
MP
modem’s
performance
is
affected
by
the
type
of
Ethernet
card
in
the
computer
and
the
type
of
cable
used.
The
minimum
requirement
for
the
Ethernet
cable
is
an
unshielded
twisted
pair
(UTP)
cable,
category
3
or
4.
For
better
performance,
use
a
shielded,
category
5
cable.
The
maximum
length
is
100
m
(328
feet).
Note: If GPS is being imple-
mented, you require either two
antennas or a combination Main
RF and GPS antenna.
•
Main
Radio
frequency
antenna
and
cable.
The
antenna
must
have
the
appropriate
regulatory
approval,
50
ohm
impedance,
and
a
male
TNC
connector.
It
may
be
a
hard
or
magnetic
‐
mount
antenna.
•
Access
Point
antenna
and
cable.
(MP
881W
modem
only)
•
GPS
antenna
and
cable
(optional).
This
is
necessary
if
you
use
the
built
‐
in
GPS
module.
•
Power
supply.
This
is
usually
the
vehicle’s
battery.
•
Appropriate
electrical
grounding.
If
a
ground
wire
is
necessary,
use
a
16
‐
gauge
wire
and
connect
it
to
a
ground
screw.
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