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First read through this section so that you have a good understanding of the tasks to
properly plan and execute installation of Multinode/WSG nodes in a wireless network.
Preinstallation requirements
The following tasks must be completed before you actually install wireless system
gateways and multinodes in a wireless network:
•
Network site planning must be completed to understand how a wireless network
can be built and supported for your application using OneWireless components.
These components consist of wireless field devices, multinodes, and wireless system
gateways.
•
RF site survey must be completed by a qualified professional. The RF survey is
essential for building the architecture of the wireless network. The site survey should
at a minimum include the following tasks:
−
RF spectrum analysis must be conducted on the 2.40-2.49 GHz band and 5.7-5.9
GHz band (if available to be used) to detect any potential RF interference.
Strong interference sources should be addressed (removed, avoided or
minimized) before an installation. Note that some frequencies may not be
available for use in some locations and countries.
−
A point-to-point 2-node mesh should be staged in various locations to measure
the RF propagation ability in the site environment. Received Signal Strength
Indicator (RSSI) can serve as one indicator of the RF environment. TCP/IP
throughput testing and UDP/IP throughput and packet drop rate testing should
be conducted in all selected locations to measure the quality of the site
environment.
−
Site survey should be conducted once the factory system is operating so that
maximum possible interference is measured and addressed.
•
Multinode placement should be determined through the completion of the network
planning and RF survey activities.
•
Power requirements for network should be identified. Wired cable runs that
provide DC power to the WSGs and multinodes should be determined.
•
Ethernet cable runs should be determined for WSGs and/or any other wired nodes
in the network.
R110
6/08
Installation Overview
OneWireless Multinode User's Guide
23
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