User's Manual

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1.2.2 Who Should Use This Guide
The guide is for use by the system installer and the end user IT professional.
The system installer will require expertise in the following areas:
• Outdoor radio equipment installation
• Network configuration
• Use of web browser for system configuration, monitoring and fault finding
1.2.3 Service
For unit repair or service, contact your service provider or an authorised Orthogon Systems
distributor for authorisation and shipping instructions.
1.3 Product Description (About the OS-Gemini)
The OS-Gemini has primarily been developed to provide Point-to-Point data connectivity via a
5GHz wireless Ethernet bridge operating at broadband data rates. The OS-Gemini is aimed at
enterprises that have a requirement to connect together the Local Area Network (LAN) of two or
more buildings. Figure 1 illustrates such a deployment. It should be noted that the use of two
links requires a router at each end to provide load balancing and redundancy control which are
not shown.
Building 1 Building 2
Enterprise LAN Enterprise LAN
Power
Adapter
Mains
Supply
Wall
Plate
CAT 5
Patch
CAT 5
Cable
Figure 1 Typical OS-Gemini Deployment
The OS-Gemini offers true non--Line--of--Sight (NLOS) operation by using a combination of Or-
thogonal Frequency Division Multiplex (OFDM) modulation and MultiBeam Space Time Coding
(STC) techniques. These technologies enables the OS-Gemini to drive through foliage and around
buildings to such an extent that almost universal coverage can be expected at short range.