9
2.3.1
EEC Thermoplastic Enclosure
Figure 1: Deutsch EEC Thermoplastic Enclosure Dimensions
2.4
Mounting the Antenna
The antenna shipped with the Messenger is a cellular hockey puck style. The antenna
can be ordered with a magnetic or a screw mount base.
In general, the antenna should be mounted with an unobstructed view of the sky. If the
antenna is mounted outside and may be subject to lightning, a surge arrestor can be
inserted between the antenna and the Messenger. If the antenna is mounted inside, it
should be located near a window.
NOTE: Service loops should be provided for the antenna cabling, near the antenna
connection to minimize water ingress through the connection.
2.5
DIP Switch/Jumper Settings
The Messenger uses on-board DIP switches and jumpers to configure application
specific IO and set operational modes. DIP switches 3, 4, 5, and jumper J21 are used to
select application specific IO.
DIP Switch 2
is used to set operational modes. See
Figure 3
for DIP switch locations. See
Figure 4
for DIP switch IO selection settings.
