| 4 |   |  | 
          
          
            | 5 |   | The majority  of SDR devices in the ORBIT grid are various generations of [http://en.wikipedia.org/wiki/Universal_Software_Radio_Peripheral Universal Software Radio Peripherals (USRP)] . Each USRP, whether USB or Ethernet based, is attached to a [wiki:Hardware/hNodes/cNodeVer3 generation 3 node] and is physically located on a small shelf immediately underneath the node (as shown in the antenna figure below).  | 
          
          
            | 6 |   |  | 
          
          
            | 7 |   | In the case of USRP devices, the USB interface is attached to one of the USB2 ports on a corresponding node. For USRP2s (and N210s), the Ethernet interface of each device is connected to a (third) dedicated Ethernet interface on the node (eth2) that is used solely for USRP related communication.  | 
          
          
            | 8 |   |  | 
          
          
            | 9 |   | The USRP X310s are attached to the new [wiki:Hardware/hNodes/cNodeVer4 generation 4 nodes]. They are attached to a 10 Gigabit NIC on the node via SFP+ direct attach cable, and are attached via fiber to our aggregate switch. (Note, fiber link is still undergoing testing/debugging.) | 
          
          
            | 10 |   |  | 
          
          
            | 11 |   | The nodes with USRP devices are distributed through the grid as shown in the [wiki:Hardware/fDevices/cSDR/gUSRP#grid deployment table]. In addition to grid deployment two sandboxes are available for development: [wiki:Hardware/bDomains/cSandboxes/cSB3 sandbox3] is equipped with [wiki:Hardware/fDevices/cSDR/gUSRP#sb3 two USRP2s], while [wiki:Hardware/bDomains/cSandboxes/eSB5 sanbox5] has [wiki:Hardware/fDevices/cSDR/gUSRP#sb5 two USRPs] attached. | 
          
        
        
          
            | 49 |   | ==== USRP Antenna Mounting ==== | 
          
          
            |   | 41 |  | 
          
          
            |   | 42 | ==== ORBIT USRP Deployment ==== | 
          
          
            |   | 43 |  | 
          
          
            |   | 44 | The majority  of SDR devices in the ORBIT grid are various generations of [http://en.wikipedia.org/wiki/Universal_Software_Radio_Peripheral Universal Software Radio Peripherals (USRP)] . Each USRP, whether USB or Ethernet based, is attached to a [wiki:Hardware/hNodes/cNodeVer3 generation 3 node] and is physically located on a small shelf immediately underneath the node (as shown in the antenna table below).  | 
          
          
            |   | 45 |  | 
          
          
            |   | 46 | In the case of USRP devices, the USB interface is attached to one of the USB2 ports on a corresponding node. For USRP2s (and N210s), the Ethernet interface of each device is connected to a (third) dedicated Ethernet interface on the node (eth2) that is used solely for USRP related communication.  | 
          
          
            |   | 47 |  | 
          
          
            |   | 48 | The USRP X310s are attached to the new [wiki:Hardware/hNodes/cNodeVer4 generation 4 nodes]. They are attached to a 10 Gigabit NIC on the node via SFP+ direct attach cable, and are attached via fiber to our aggregate switch. (Note, fiber link is still undergoing testing/debugging.) | 
          
          
            |   | 49 |  | 
          
          
            |   | 50 | The nodes with USRP devices are distributed through the grid as shown in the [wiki:Hardware/fDevices/cSDR/gUSRP#grid deployment table]. In addition to grid deployment two sandboxes are available for development: [wiki:Hardware/bDomains/cSandboxes/cSB3 sandbox3] is equipped with [wiki:Hardware/fDevices/cSDR/gUSRP#sb3 two USRP2s], while [wiki:Hardware/bDomains/cSandboxes/eSB5 sanbox5] has [wiki:Hardware/fDevices/cSDR/gUSRP#sb5 two USRPs] attached. | 
          
          
            |   | 51 |  | 
          
          
            |   | 52 | ===== USRP Antenna Mounting ===== |