National Instruments NI PXI-6542 用户手册
NI Digital Waveform Generator/Analyzer Guide
20
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Table 4. NI 654X DDC Connector Pins
Pins
Signal
Name
Signal
Type
Signal Description
33
DDC CLK
OUT
OUT
Control
Output terminal for the exported
Sample clock.
Sample clock.
67
STROBE
Control
Terminal for the external Sample clock
source which can be used for pattern
acquisition.
source which can be used for pattern
acquisition.
1, 3, 5, 7, 9,
11, 13, 15, 17,
19, 21, 23, 25,
27, 29, 31, 35,
37, 39, 41, 43,
45, 47, 49, 51,
53, 55, 57, 59,
61, 63, 65
11, 13, 15, 17,
19, 21, 23, 25,
27, 29, 31, 35,
37, 39, 41, 43,
45, 47, 49, 51,
53, 55, 57, 59,
61, 63, 65
DIO <0..31>
Data
Bidirectional digital I/O data channels
0 through 31.
0 through 31.
26, 30, 64
PFI <1..3>
Control
Input terminals to the NI 654X for
external triggers, or output terminals
from the NI 654X for events.
external triggers, or output terminals
from the NI 654X for events.
2, 4, 6, 10, 12,
14, 16, 18, 20,
22, 24, 28, 32,
34, 36, 38, 40,
42, 44, 46, 48,
50, 54, 56, 58,
62, 66
14, 16, 18, 20,
22, 24, 28, 32,
34, 36, 38, 40,
42, 44, 46, 48,
50, 54, 56, 58,
62, 66
GND
Ground
Ground reference for signals.
8, 52, 60
RESERVED
N/A
These terminals are reserved for future
use. Do not connect to these pins.
use. Do not connect to these pins.