Ettus USRP B310 Interface Panels

Overviews of the front and rear panel elements of the Ettus USRP B310.

USRP B310 (Enclosed) Front and Rear Panels

Figure 1. USRP B310 (Enclosed) Front Panel

Front USRP B310 panel showing the Power LED, and the RF, GPS ANT, and GPIO connectors on the Enclosed variant.

Figure 2. USRP B310 (Enclosed) Rear Panel

Rear USRP B310 panel showing Power, Sync, PPS IN, REF IN, and Thunderbolt™ connectors on the Enclosed variant.

USRP B310 (PCIe) Front and Rear Panels

Figure 3. USRP B310 (PCIe) Front/Rear Panels

Front and rear USRP B310 panels showing RF, GPS, GPIO, USB, power, sync, PPS, and reference connectors on the PCI Express variant.

  1. Front view
  2. AUX Power (J10)
  3. JTAG (J13)

USRP B310 (OEM) Front and Rear Panels

Figure 4. USRP B310 (OEM) Front/Rear Panels
Front and rear USRP B310 panels showing RF, GPS, GPIO, USB, power, sync, PPS, and reference connectors on the OEM variant.
  1. AUX Power (J10)
  2. JTAG (J13)
Table 6. Port/Connector Descriptions
Port/Connector Name Description Connector Type
GPS ANT Input for an external GPS antenna used by the onboard GPSDO.
  • SMA (f), 50 Ω
  • 3.0 V, 0.19 W
TX/RX 0 Bidirectional radio frequency signal connector used for transmit and receive operations.
  • SMA (f), 50 Ω
  • RX—+10 dBm input power damage level
  • TX—+20 dBm, maximum
RX 1 Radio frequency signal connector used for receive‑only operations.
  • SMA (f), 50 Ω
  • RX—Receive only; +10 dBm input power damage level
GPIO General purpose input/output digital terminals.
  • Mini-HDMI Type-C
  • 3.3 V output voltage
  • 250 mA VCC out, 8 mA per GPIO output port
  • NOT AN HDMI-COMPATIBLE INTERFACE
Thunderbolt™ 4 Port Thunderbolt™ port for interfacing with the Ettus USRP B310. Available only on the USRP B310 (Enclosed).
  • USB-C receptacle
Console JTAG (J13) For connecting to the FPGA for development and debugging. Provides access to JTAG. Available only on the USRP B310 (PCIe) and USRP B310 (OEM).
  • 2 V DC, maximum
SYNC For use with sharing a high-frequency reference and PPS across multiple Ettus USRP B310 devices.
  • Mini-HDMI Type-C
  • Reference Clock Output—AC coupled output ±0.325 V (0.65 V peak-peak)
  • PPS Output—0 V to 3.3 V
  • NOT AN HDMI-COMPATIBLE INTERFACE
PPS IN Input for an external pulse‑per‑second (PPS) signal used for time synchronization.
  • SMA (f), 50 Ω
  • +3.3 V, input only
REF IN Input for an external 10 MHz, 122.8 MHz, or 125 MHz reference clock signal used for frequency synchronization.
  • SMA (f), 50 Ω
  • ±0.165 V to ±0.45 V (0.33 V to 0.9 V peak-peak), input only