Changes between Version 14 and Version 15 of Hardware/bDomains/cSandboxes/dSB4


Ignore:
Timestamp:
Dec 21, 2011, 7:50:28 PM (13 years ago)
Author:
seskar
Comment:

—

Legend:

Unmodified
Added
Removed
Modified

  • Hardware/bDomains/cSandboxes/dSB4

    v14 v15  
    55As shown in Figure 1, sandbox 4 consists of 8 nodes and a WiMAX subsystem that consists of a basestation and a controller. To prevent interference, each node is housed in [http://www.ramseytest.com/ Ramsey Electronics RF enclosure] that provides 80 dB of isolation. Nodal wireless devices (Atheros 5000X mini-PCI card and Intel 6250 mini-PCIe 802.11/802.16) are connected to a power combiner and fed through the enclosure access port to the outside SMA connector which is wired to one of the input/output ports of the [http://www.jfwindustries.com/documents/50PMA-012_specsheet.pdf  RF Transceiver Test System] from [http://www.jfwindustries.com JFW Industries]. This configuration enables fairly tight control of RF attenuation between the nodes. The topology is controlled through the [http://omf.mytestbed.net OMF] based [wiki:Documentation/Services/bInstrumentationControlService Instrumentation AM].
    66
    7 [[Image(SB4.jpg, 600px, link=, align=center)]] [[BR]]
    8 
    9 [[Image(IMG_0376.JPG, 500px)]]
     7  || [[Image(SB4.jpg, 600px, link=, align=center)]] || [[Image(IMG_0376.JPG, 200px)]] ||