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NI High-Speed Digitizers Getting Started Guide
Table 3 describes the signal connections for the NI 5122/5124/5142/5922.
Figure 14 shows the pin assignments for the 9-pin DIN connector.
Figure 14.
9-Pin DIN Connector Pin Assignments for NI 5114/5122/5124/5142/5922
Table 3.
NI 5122/5124/5142/5922 Front Panel Signal Connections
Connector
Description
Function
CH 0,
CH 1
Standard BNC female connector
Analog input connection; digitizes data and
triggers acquisitions.
TRIG
Standard BNC female connector
External analog trigger connection; signals on the
TRIG connector cannot be digitized.
CLK IN
Standard SMB jack connector
(NI 5122/5124/5142)
Input for an external
reference clock or sample clock to the digitizer.
(NI 5922)
Input for an external reference clock to
the digitizer.
CLK OUT
Standard SMB jack connector
(NI 5122/5124/5142)
Output for the reference
clock or sample clock.
(NI 5922)
Output for the reference clock.
AUX I/O
9-pin mini-circular DIN
connector
Provides access to the multipurpose digital timing
and triggering lines, PFI 0, and PFI 1 (with optional
cable). For pinout information, refer to Figure 14.
1
+5 V (Fused)
2
GND
3
Reserved
4
Reserved
5
Reserved
6
PFI 1
7
Reserved
8
Reserved
9
PFI 0
4
3
5
6
7
8
9
1
2
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