Antenna Installation; Antenna Recommendations - Sierra Wireless AirLink ES450 Hardware User's Manual

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The ES450 has four mounting holes to attach it to a mounting surface. These holes are
accessible from the top of the device and screws are provided for mounting.
62.5 mm
(2.5 in.)
22.5 mm
(0.9 in.)
Figure 3-2: ES450 device bottom view, showing mounting holes

Antenna Installation

If the location chosen in
antennas can connect directly to the ES450, then follow the instructions in
Antennas
If you are cabling the antennas to the ES450, your AirLink authorized reseller may be able
to assist with your cabling and installation.
The included antennas are for indoor use only.
When placing either the included antennas or third-party antennas, follow the antenna
separation guidelines in
If you want to use a third-party antenna placed outdoors, Sierra Wireless recommends
working with your authorized distributor to provide the proper protection, which may
include an RF lightning arrestor and/or Ethernet surge suppressors. The antenna must be
installed by qualified personnel.

Antenna Recommendations

Note: Do not remove the secondary antenna. It helps the ES450 gateway achieve the maximum
network coverage. The ES450 works without one installed, but with reduced network coverage.
Note: If the antennas are located far away from the ES450, keep the cables as short as possible to
prevent the loss of antenna gain.
Rev. 7 July 2019
It is kept free from direct exposure to the
0
5.2 mm (0.2 in.)
0
Locating the ES450 Gateway
on page 15 to connect the antennas in a V-formation.
Antenna Separation
elements, such as sun, rain, dust, etc.
on page 27 is such that the
on page 29 for optimum performance.
28
On-site Installation and Setup
Mounting holes
diameter: 5.3 mm (0.2 in.)
136 mm (5.4 in.)
Connecting the
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