Changes between Version 6 and Version 7 of Hardware/bDomains/cSandboxes/dSB4


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Timestamp:
Dec 21, 2011, 2:12:01 AM (13 years ago)
Author:
seskar
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  • Hardware/bDomains/cSandboxes/dSB4

    v6 v7  
    1 [[TOC(Documentation/Topology/*)]]
     1[[TOC(Hardware/gDomains/*)]]
    22
    3 = Topology Control in SB4 =
     3= SB4 =
    44
    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 a single input/output of the ports of the [wiki:Documnetation/Topology/aRFControl 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
    77[[Image(SB4.jpg, 600px, link=, align=center)]]
    8 
    9 Basestation is controlled through  [http://omf.mytestbed.net OMF] based [http://wimax.orbit-lab.org/wiki/WiMAX/17#a9.WiMAXRFAggregateManagerService WiMAX RF Aggregate Manager Service] that is running on machine cons-wm-01.
    10 
    11 Example of topology control (execute on console.sb4):
    12 
    13 To set attenuation between node1-8 and the BS to 20 dB
    14 {{{
    15     wget -O status.xml "http://internal2dmz.orbit-lab.org:5052/instr/set?portA=8&portB=9&att=20"
    16 }}}
    17 
    18 Example of wimax control (execute on console.sb4):
    19 
    20 To turn ARQ on ([http://wimax.orbit-lab.org/wiki/WiMAX/17/01arq#arq-ARQControl ARQ Control] part of wimaxrf AM)
    21 {{{
    22     wget -O status.xml "http://cons-wm-01:5052/wimaxrf/arq?enable=true"
    23 }}}