User's Manual Part 1

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1.3 Product Description
This User Manual is specifically written for the OS-Gemini platform and the 5820 software load
for North America.
The OS-Gemini has been developed to provide Point-to-Point data connectivity via a 5.8 GHz
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.
The OS-Gemini offers true non-Line-Of-Sight (NLOS) operation by using a combination of
Orthogonal Frequency Division Multiplex (OFDM) modulation and Multi-Beam Space Time
Coding (STC) techniques. These technologies enable the OS-Gemini to drive through foliage
and around buildings to such an extent that almost universal coverage can be expected at
short range.
The OS-Gemini consists of a pair of identical devices that are deployed one at each end of the
link. At install time the user sets up one unit as the Master and the other as the Slave. Either
unit can be configured as master or slave.
Each end of the link consists of:
• An integrated outdoor transceiver unit containing all the radio and networking
electronics hereafter referred to as the Outdoor Unit (ODU).
• An indoor passive connection box containing status indicators, DC power connection
and network connection. Hereafter referred to as the Indoor Unit (IDU).
• A ‘mains’ power adaptor
• Units will normally be supplied pre-configured as a link.
Figure 1 Typical OS-Gemini Deployment