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3 Analog input & Gain setting
3.1 Input Channel Selection
The DB-990D provides 15 channel differential analog inputs. Input channel selection
is controlled by the 4 bit TTL/CMOS digital data (CN3 DO0~DO3) issued by the
OME-A-82x series multi-function card.
DO 3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
OME-DB-889D User's Manual
DO 2
DO 1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
DO 0
Analog input
channel
0
0
1
1
0
2
1
3
0
4
1
5
0
6
1
7
0
8
1
9
0
10
1
11
0
12
1
13
0
14
1
15
10
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