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USB-2020 User's Guide
40-pin auxiliary connector (J9)
The 40-pin auxiliary connector provides the following connections for all I/O signals except for analog input
and clock I/O:
Eight digital I/O (
Digital trigger input (
12 ground connections (
Two +5V power outputs (
The signals that are available on the 40-pin IDC connector are listed below. Connect signals on the 40-pin IDC
connector using a C40FF-x cable or C40-37F-x cable.
Pin Description
Ground
Ground
Digital I/O bit 7
Digital I/O bit 6
Digital I/O bit 5
Digital I/O bit 4
Digital I/O bit 3
Digital I/O bit 2
Digital I/O bit 1
Digital I/O bit 0
Ground
Do not connect
Ground
Do not connect
Ground
Do not connect
Ground
Power output
Ground
Do not connect
to
)
DIO0
DIO7
)
TRIG IN
)
GND
)
+VO
40-pin IDC connector pin out
Signal Name
Pin
GND
1
•
GND
3
•
DIO7
5
•
DIO6
7
•
DIO5
9
•
DIO4
11
•
DIO3
13
•
DIO2
15
•
DIO1
17
•
DIO0
19
•
GND
21
•
N/C
23
•
GND
25
•
N/C
27
•
GND
29
•
N/C
31
•
GND
33
•
+VO
35
•
GND
37
•
N/C
39
•
Pin
Signal Name
Pin Description
•
2
+VO
Power output
•
4
N/C
Do not connect
•
6
N/C
Do not connect
•
8
N/C
Do not connect
•
10
TRIG IN
External digital trigger input
•
12
GND
Ground
•
14
GND
Ground
•
16
GND
Ground
•
18
GND
Ground
•
20
GND
Ground
•
22
N/C
Do not connect
•
24
N/C
Do not connect
•
26
N/C
Do not connect
•
28
N/C
Do not connect
•
30
N/C
Do not connect
•
32
N/C
Do not connect
•
34
N/C
Do not connect
•
36
N/C
Do not connect
•
38
N/C
Do not connect
•
40
N/C
Do not connect
13
Functional Details
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