RadioFrame Networks Inc DH2 User Manual

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RadioFrame System 
System Description 
RFN_3.1 Beta
  
15 
2.1.2.5 
802.11b RadioFrame Access Point (RAP) 
The 802.11b RadioFrame Access Point (RAP) provides a single RF channel 
transceiver supporting the 802.11b (WLAN) standard for wireless data. Each 
RAP contains an onboard omnidirectional antenna and provides a coverage area 
of approximately 32,000 square feet (nominal 100’ radius cell). Each RAP inserts 
into a slot in the RFU. 
 
Figure 9 
RadioFrame Access Point (RAP) functional diagram. 
2.1.2.6 
Universal Repeater Unit (URU) 
The Universal Repeater Unit (URU) extends the distance between RFS 
components, including the NCU and the iSC, from 328’ (100 meters) to 656’ (200 
meters). Up to two URUs can extend the distance to 984’ (300 meters). The unit 
repeats the Ethernet signal and timing, and can also supply power to an RFU.  
2.1.2.7 
Ethernet Media Converter 
The Ethernet Media Converter (Allied Telesyn model number AT-MC15) is 
installed between the NCU and iSC-3. The MC15 converts signals from twisted 
pair cable to thinnet cable, and vice versa, providing seamless connection 
between two different media with a 10Base-2 BNC connector. An external 12 
Vdc power adapter supplies power to the media converter.  
2.1.3 Power 
Plant 
The Power Plant consists of two components: a rectifier and battery plant. 
Air Interface
RF 
Section
Digital
Processing
Power
Timing
Ethernet
RFU Backplane