USB-2020 User's Guide
Functional Details
40-pin to 37-pin signal mapping
Signal mapping on the C40-37F-
x
cable is not a one-to-one ratio. The following table lists the pin numbers of
the signals on the 40-pin end and the pin numbers of the associated signals on the 37-pin end.
Signal mapping on the C40-37F-
x
cable
40-pin cable end
37-pin cable end
Pin
Signal Name
Pin
Signal Name
1
GND
1
GND
2
+VO
20
+VO
3
GND
2
GND
4
N/C
21
N/C
5
DIO7
3
DIO7
6
N/C
22
N/C
7
DIO6
4
DIO6
8
N/C
23
N/C
9
DIO5
5
DIO5
10
TRIG IN
24
TRIG IN
11
DIO4
6
DIO4
12
GND
25
GND
13
DIO3
7
DIO3
14
GND
26
GND
15
DIO2
8
DIO2
16
GND
27
GND
17
DIO1
9
DIO1
18
GND
28
GND
19
DIO0
10
DIO0
20
GND
29
GND
21
GND
11
GND
22
N/C
30
N/C
23
N/C
12
N/C
24
N/C
31
N/C
25
GND
13
GND
26
N/C
32
N/C
27
N/C
14
N/C
28
N/C
33
N/C
29
GND
15
GND
30
N/C
34
N/C
31
N/C
16
N/C
32
N/C
35
N/C
33
GND
17
GND
34
N/C
36
N/C
35
+VO
18
+VO
36
N/C
37
N/C
37
GND
19
GND
38
N/C
39
N/C
40
N/C
Signal connections
Analog input
The USB-2020 has two single-ended simultaneous sampling analog inputs that provide sampling at rates of up
to 20 MS/s to internal memory when using BURSTIO and at rates of up to 8 MS/s (system-dependent) to the
host computer in continuous scan mode. The input ranges are software-selectable for ±10 V, ±5 V, ±2 V, ±1 V.
When using BURSTIO, the internal memory can store up to 64 megasamples at the maximum rate for transfer
to the computer after the acquisition is complete. Data is transferred to the host computer at a maximum rate of
8 MS/s (system-dependent).
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