National Instruments 321906B-01 用户手册

Chapter 1

Routing Signals with Your NI 2501/2503

©

National Instruments Corporation

1-7

NI 2501/2503 User Manual

Figure 1-3. Front Connector Pinout Assignments for Four-Wire Mode

CH11B–

CH10B–

CH9B–

CH8B–

CH7B–

CH6B–

GND

+5 V

COM1B–

COM0B–

CH5B–

CH4B–

CH3B–

CH2B–

CH1B–

CH0B–

AB0B–

AB0A–

CH11A–

CH10A–

CH9A–

1_WIRE_LO_REF

1

CH8A–

CH7A–

CH6A–

COM1A–

COM0A–

CH5A–

CH4A–

CH3A–

CH2A–

CH1A–

CH0A–

CJS–

1

1

35

2

36

3

37

4

38

5

39

6

40

7

41

8

42

9

43

10 44

11 45

12 46

13 47

14 48

15 49

16 50

17 51

18 52

19 53

20 54

21 55

22 56

23 57

24 58

25 59

26 60

27 61

28 62

29 63

30 64

31 65

32 66

33 67

34 68

CH11B+

CH10B+

CH9B+

CH8B+

CH7B+

CH6B+

EXT_TRIG_IN

SCAN_ADV

COM1B+

COM0B+

CH5B+

CH4B+

CH3B+

CH2B+

CH1B+

CH0B+

AB0B+

AB0A+

CH11A+

CH10A+

CH9A+

GND

CH8A+

CH7A+

CH6A+

COM1A+

COM0A+

CH5A+

CH4A+

CH3A+

CH2A+

CH1A+

CH0A+

CJS+

1

1

not used in four-wire mode