Table 32. NI USRP-2953R Module LEDs (Continued)
LED
Indication
RF 1 TX1/
RX1
Indicates the transmit status of the module:
OFF—The module is not active.
RED—The module is receiving data.
GREEN—The module is transmitting data.
RX2
Indicates the receive status of the module:
OFF—The module is not receiving.
GREEN—The modules is receiving.
Figure 25. NI USRP-2953R Module Back Panel
0
1
PWR
REF
IN
PPS
OUT
TRIG
5V DC
REF
OUT
1G/10G ETH
3.3 V
+15 dBm
MAX
9-16V DC
7.5 A MAX
SFP+Ports
PCIe x4
TRIG
3.3V
IN
5V MAX
PPS
GPS
ANT
–15 dBm
MAX
Table 33. NI USRP-2953R Module Back Panel Connectors
Connector
Use
PWR
The power input accepts a 9 V to 16 V, 6 A external DC power connector.
1G/10G ETH
The Ethernet ports accept 1G SFP modules and 10G SFP+ modules. With
a 1G ETH module inserted, the ports accept gigabit Ethernet-compatible
cables (Category 5, Category 5e, or Category 6).
REF OUT
Output terminal for an external reference signal for the LO on the device.
REF OUT is an SMA (f) connector with an impedance of 50 Ω and is a
single-ended reference output. REF OUT outputs a 10 MHz signal at
3.3 V.
REF IN
Input terminal for an external reference signal for the LO on the device.
REF IN is an SMA (f) connector with an impedance of 50 Ω and is a
single-ended reference input. REF IN accepts a 10 MHz signal with a
minimum input power of 0 dBm (.632 V
pk-pk
) and a maximum input power
of 15 dBm (3.56 V
pk-pk
) for a square wave or sine wave.
PCIe x4
This port accepts a PCI Express Generation 1, x4 bus connection through
an MXI Express four-lane cable.
NI USRP-29xx Getting Started Guide
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© National Instruments
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