Chapter 1 Routing Signals with Your NI2501/2503
NI 2501/2503 User Manual 1-6
©
National Instruments Corporation
Figure 1-2. Front Connector Pinout Assignments for One-Wire ModeCH47
CH46
CH45
CH44
CH43
CH42
GND
+5 V
COM3– (CH42–CH48)1
COM2– (CH36–CH41)1
CH41
CH40
CH39
CH38
CH37
CH36
AB1–1
AB0–
CH35
CH34
CH33
1_WIRE_LO_REF
CH32
CH31
CH30
COM1– (CH30–CH35)1
COM0–
CH29
CH28
CH27
CH26
CH25
CH24
CJS–1
135
236
337
438
539
640
741
842
943
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
CH23
CH22
CH21
CH20
CH19
CH18
EXT_TRIG_IN
SCAN_ADV
COM3+ (CH18–CH23)1
COM2+ (CH12–CH17)1
CH17
CH16
CH15
CH14
CH13
CH12
AB1+1
AB0+
CH11
CH10
CH9
GND
CH8
CH7
CH6
COM1+ (CH6–CH11)1
COM0+
CH5
CH4
CH3
CH2
CH1
CH0
CJS+1
1not used in one-wire mode