The following is the (approximate) block diagram explaining the interfacing between external SFP ports with SBC and X310.
The SFP 1 from the device front panel connects to Port 0 of the X310 while the SFP 0 goes to NIC Port 1 which further interfaces to SBC. Port 1 of X310 interfaces with SBC via Port 0 as shown above.
IP Addresses with Default Bitfile (NI USRP Host API or UHD):The following are the IP addresses of these ports when a default image/bitfile is used (with NI USRP host API or UHD device drivers).
| Location | Port | IP Address | Interface Type |
| X310 | Port 0 | 192.168.10.2 | 1GbE (HG Image) |
| 192.168.30.2 | 10GbE (XG Image) |
| Port 1 | 192.168.40.2 | 10GbE (HG or XG Image) |
| SBC | Port 0 | Manually set to 192.168.40.1 | 10GbE |
| Port 1 | Static or Dynamic (User Configurable) | 10GbE |
To make sure the SBC Ports are detected when Windows is installed, please install the relevant driver as explained in the
Windows 10 installation knowledgebase.Please note that the default image resides on the flash of X310 and is automatically loaded on the boot. Using the SFP 1, the X310 of the USRP 2974 can also be directly accessed (from an external host PC) without SBC intervention.
Using SFP with NI USRPRIO Drivers:When using NI USRPRIO drivers, the 10GbE physical layer can be added to the FPGA (X310). The NI LabVIEW programming path (accessible when Windows is installed on SBC) provides
shipping reference projects and
community examples that can be modified and used for NI USRP 2974 as well. A similar implementation can also be performed for NI LabVIEW NXG.