Nokia RoofTop R242, Руководство по установке

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2 Nokia RoofTop™ Wireless Routing Installation Guide
1.1.1 Configuration
When the units are configured and deployed, they adapt to the network
automatically to learn the network topology. The operating system then
builds and maintains the network topology and routing tables, and
continually updates them as the network changes.
Line of sight problems, common in point-to-multipoint networks, are
eliminated by routing traffic through other units. If a node cannot connect
directly to the AirHead, multihop routing protocols forward traffic
through another wireless router.
Operating system protocols optimize wireless links providing hop-by-hop
data integrity and efficient, intelligent multicasting. Protocols control
channel scheduling, neighbor authentication, and link maintenance, as
well as optimize routing in the wireless environment. By scheduling
traffic streams to non-conflicting transmission times and Radio
Frequency (RF) channels, quality-sensitive and/or bandwidth intensive
applications co-exist with standard applications.
1.1.2 Installation Components
Each installation consists of a Nokia RoofTop™ Wireless Router, RF
cabling, lightning protection, and an amplifier (optional). The antennas
mount on the roof, or in a location in line of sight to other antennas in the
network. RF cabling is run from the antenna to the wireless router, which
is mounted indoors.
A successful installation requires:
• Site analysis and proper planning (section 2.3)
• Placement of the antenna with line of sight to at least one antenna
in the network (section 2.3)
• Using appropriate antenna and cabling (Sections 2.4 and 2.5)
• Proper installation technique, including grounding and
weatherproofing (Section 2.6)