Antenna Options; Selecting Antenna Locations; Cable Connections And Power - ABB Tropos 4310-XA Installation Manual

Note
The router contains integral ESD protection and vehicle power conditioning, so external protection is not
required.

Antenna Options

You can purchase any of the Tropos-approved, cable-attached antennas that are listed in
"Ordering Information"
best for systems requiring a signal distribution in more than one direction.
Caution
To comply with regulatory RF exposure limits, locate antennas a minimum distance of 7.9 inches (20cm)
from people.
Note
Only use antennas that are approved by Tropos. Operating the unit with non-qualified antennas is a
violation of U.S. FCC Rules Part 15.203(c), Code of Federal Regulations, Title 47.

Selecting Antenna Locations

The Tropos 4310-XA and 4319-XA Mobile Mesh Routers can be mounted on the outside of a
vehicle with an antenna connected directly to the router or they can be mounted inside the
vehicle with an antenna mounted outside the vehicle.
If possible, the router should be mounted outside the vehicle as this eliminates the need for the
use of coaxial cable between the router and antenna. Use of coaxial cable introduces losses in the
system which reduces the effective transmit power.
If an omnidirectional antenna is used, it should be mounted vertically. If the router is mounted
externally and is situated so that its antenna connector is on the side, a right-angle N-connector
should be used in order to get the antenna in a vertical orientation.
Tropos recommends the use of low loss coaxial cable such as LMR-240 or LMR-400 for
connecting the router to an external antenna.
Follow these guidelines during installation:
Install the antenna on the highest part of the vehicle so that it is clear of obstructions within
at least a 3ft radius. Other antennas do not need to be considered as sources of obstruction.
Install the antenna on the flattest area of the roof.
Keep the antenna cable as short as possible.
Tropos Mobile Mesh Router Installation Guide Models 4310-XA and 4319-XA
on page 19 (see Figure 6 on page 19). Omni-directional antennas are
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