Table 24. NI USRP-2943R Module Back Panel Connectors (Continued)
Connector
Use
PPS TRIG
OUT
Output terminal for PPS timing reference. PPS TRIG OUT is an SMA (f)
connector with an impedance of 50 Ω and is a single-ended input.
PPS TRIG OUT outputs 0 V to 3.3 V TTL. You can also use this port as a
triggered output (TRIG OUT) that you control using NI-USRP software.
PPS TRIG IN
Input terminal for PPS timing reference. PPS TRIG IN is an SMA (f)
connector with an impedance of 50 Ω and is a single-ended input channel.
PPS TRIG IN accepts 0 V to 3.3 V TTL and 0 V to 5 V TTL signals. You
can also use this port as a triggered input (TRIG IN) that you control using
NI-USRP software.
GPS ANT
Input terminal for the GPS antenna signal. GPS ANT is an SMA (f)
connector with a maximum input power of -15 dBm and an output of
DC 5 V to power an active antenna.
Caution
Do not terminate the GPS ANT port if you do not use
it.
NI USRP-2950R
Figure 20. NI USRP-2950R Front Panel
LINK
TX OUTPUT MAX +20 dBm, RX INPUT MAX -15 dBm, ALL RF PORTS 50
Ω
TX1 RX1
RX2
GPS
PPS
REF
TX1 RX1
RX2
RF 0
RF 1
JTAG
AUX I/O
3.3 VDC MAX
NI USRP-2950R
50 MHz - 2.2 GHz
Designed by Ettus Research
Designed by Ettus Research
PWR
Table 25. NI USRP-2950R Module Front Panel Connectors
Connector
Use
JTAG
A USB port that connects the host computer to the device FPGA for
development and debugging. LabVIEW FPGA does not currently support
configuring or programming the device FPGA using the JTAG connector.
RF 0 TX1 RX1 Input and output terminal for the RF signal. TX1 RX1 is an SMA (f)
connector with an impedance of 50 Ω and is a single-ended input or output
channel.
RX2
Input terminal for the RF signal. RX2 is an SMA (f) connector with an
impedance of 50 Ω and is a single-ended input channel.
42
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NI USRP-29xx Getting Started Guide
