Table 5. LED Descriptions
LED Description Color Indication
RF 0 TX1 RX1 Indicates the transmit status of the
device.
Off The device is not active.
Green The device is receiving data.
Red The device is transmitting
data.
Orange The device is switching
between transmitting and
receiving data.
RX2 Indicates the receive status of the
device.
Off The device is not active.
Green The device is receiving data.
RF 1 RX2 Indicates the receive status of the
device.
Off The device is not active.
Green The device is receiving data.
TX1 RX1 Indicates the transmit status of the
device.
Off The device is not active.
Green The device is receiving data.
Red The device is transmitting
data.
Orange The device is switching
between transmitting and
receiving data.
Back Panel
+15 dBm MAX
PPS
5V MAX
USB
PWR
IN
6V
1 A MAX
REF IN
14 | ni.com | USRP-2900/2901 Getting Started Guide