ADLINK USB-1903 - Manual (Page 35)

Hardware Information 21
USB-1900 Series
2.2 Connector Pin Assignment
The USB-1900 Series module is equipped with 40-pin removable
screw-down terminal connectors, with pin assignment as follows.
*NC for USB-1901
Table 2-1: USB-1901/1902 pin assignment in single-end AI mode
Pin Function Pin Function
20 ECLK 40 AOTG*
19 NC 39 AITG
18 NC 38 GPI7
17 GPO3 37 GPI6
16 GPO2 36 GPI5
15 GPO1 35 GPI4
14 GPO0 34 GPI3
13 DGND 33 GPI2
12 AGND 32 GPI1
11 *AO1 31 GPI0
10 *AO0 30 DGND
9 AGND 29 AISE
8 AI7 28 AI15
7 AI6 27 AI14
6 AI5 26 AI13
5 AI4 25 AI12
4 AI3 24 AI11
3 AI2 23 AI10
2 AI1 22 AI9
1 AI0 21 AI8