Locating The Es440; Mounting The Es440 - Sierra Wireless AirLink ES440 Hardware User's Manual

AirLink ES440 Hardware User Guide
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• A serial connection to the enterprise router console port for out of band
management
• A USB connection to the local management PC
• A wireless WAN connection to the Mobile Network Operator
The enterprise router performs the ISP failover by monitoring service on the WAN
ports. The ES440 is always attached to the MNO network and when the
enterprise router sends traffic through the ES440, it will pass through the MNO
infrastructure to the enterprise systems, as shown.
If the remote site equipment needs attention, the OOBM feature of the ES440
allows the NOC or IT administrator to perform OOBM tasks on the connected
equipment using the ES440 Reverse Telnet/SSH feature. This reduces the
number of on-site trips and allows you to remotely manage connected equipment.
If the MNO offers better rates for minimal data usage, you can configure the
ES440 to reduce data transfer over the WWAN connection using the Reliable
Static Route (RSR) feature to route data sourced from the ES440 through the
enterprise router primary connection. Refer to the ALEOS Software Configuration
User Guide for information on configuring and using Reverse Telnet/SSH and
RSR.

Locating the ES440

Choosing where to place the ES440 and the antennas to get the best
performance can be a difficult task. The goal is to locate the ES440 where it can
connect to the enterprise router, have good signal coverage, and be in a low RF
noise area. The options are:
• Place the ES440, with the antennas connected directly to it in an area with
good signal coverage that is away from the noise of other IT infrastructure
equipment.
Or
• Keep the ES440 local to the IT infrastructure, place the antennas in an area
with good signal coverage away from the noise of other electronic equipment,
and cable the antennas to the ES440,
If you are experiencing RF performance throughput issues and you do not have
the equipment to perform an RF site survey to determine the best location, your
Sierra Wireless authorized distributor may have the tools and knowledge to help.
For simple installations in good LTE coverage, an Ethernet-connected
configuration PC running your favorite speed test application and ACEmanager to
determine network signal strength, cell info, and signal quality will help narrow
down some of the location options.

Mounting the ES440

Warning:
This ES440 is not intended for use close to the human body. Antennas should
be at least 8 inches (20 cm) away from the operator.
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