NI High-Speed Digitizers Getting Started Guide
26
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NI 5620/5621 Front Panels
Figure 22 shows the NI PXI-5620/5621 front panels.
Figure 22.
NI 5620/5621 Front Panels
Table 10 describes the signal connections for the NI 5620/5621.
Table 10.
NI 5620/5621 Front Panel Signal Connections
Connector
Description
Function
INPUT
Standard SMA female
connector
Analog input connection; digitizes data and triggers
acquisitions.
NI 5620—50
Ω
, AC coupled.
NI 5621—50
Ω
, DC coupled.
REF CLK IN
Standard SMA female
connector
50
Ω
, 10 MHz, AC coupled reference clock input.
PFI 1
Standard SMB jack
connector
External digital trigger connection.
NI PXI-5621
64 M
S
/
s
Digitizer
INPUT
50
+20 dBm MAX
±
3
VDC MAX
REF CLK IN
PFI 1
50
+20 dBm MAX
±10 VDC MAX
TTL (+5 V MAX)
NI PXI-5620
64 M
S
/
s
Digitizer
INPUT
50
+20 dBm MAX
±2 VDC MAX
REF CLK IN
PFI 1
50
+16 dBm MAX
±10 VDC MAX
TTL (+5 V MAX)
