National Instruments NI PXI-562X - Manual (Page 16)

Chapter 2 Hardware Overview
NI PXI-562x User Manual 2-2 ni.com
Connecting Signals
Figure 2-2 shows the NI 562x front panel, which contains three connectors:
two SMA connectors and an SMB connector.
One of the SMA connectors, INPUT, is for attaching the analog input signal
you want to measure. The second SMA connector, REF CLK IN, is a 50
Ω,
10 MHz, AC-coupled reference input. The SMB connector, PFI1, is for
external digital triggers.
Figure 2-2. NI 562x Front Panel
562x
64 MS/s Digitizer
INPUT
50
+20 dBm MAX
REF CLK IN
PFI 1
50
+16 dBm MAX