Chapter 2
Configuration and Installation
©
National Instruments Corporation
2-11
After selecting the excitation mode of operation desired—Voltage or
Current—as described in the previous section, use Table 2-8 to set your
SCXI-1121 for the level of operation. Your SCXI-1121 is shipped with the
Voltage mode set to 3.333 V.
Table 2-7.
Maximum Load per Excitation Channel
Excitation Level
Maximum Load
3.333 V
28 mA
10 V
14 mA
0.150 mA
10 k
Ω
0.450 mA
10 k
Ω
Table 2-8.
Excitation Level Jumper Selection
Excitation
Channel
Jumpers
3.333 V or 0.150 mA
(Factory Setting)
10 V or 0.450 mA
0
W16 and W26
1
W24 and W25
2
W36 and W37
3
W48 and W49
•
•
•
W16
1 2 3
•
•
•
W26
1
2
3
•
•
•
W16
1 2 3
•
•
•
W26
1
2
3
•
•
•
W24
1 2 3
•
•
•
W25
1 2 3
•
•
•
W24
1 2 3
•
•
•
W25
1 2 3
•
•
•
W36
1 2 3
•
•
•
W37
1 2 3
•
•
•
W36
1 2 3
•
•
•
W37
1 2 3
•
•
•
W48
1 2 3
•
•
•
W49
1 2 3
•
•
•
W48
1 2 3
•
•
•
W49
1 2 3
