Chapter 2 Configuration and Installation
SCXI-1120/D User Manual 2-12 www.natinst.com
SCXI-1120 Filter Jumpers
Two-stage filtering is also available on your SCXI-1120 module. The first
stage is located in the isolated section of the input channel, whereas the
second stage is located in the nonisolated section of your input channel.
Two-stage filtering eliminates the noise generated by the isolation
amplifier, producing a higher signal-to-noise ratio. Furthermore, two filter
bandwidths are available, 10 kHz and 4 Hz.
Second-stage 1 A
2 B
5 C
10 D (factory-default setting
for the SCXI-1120)
20 E (factory-default setting
for the SCXI-1120D)
Table 2-6.
SCXI-1120 Filter Jumper Allocation
Input
Channel
Number
First
Filter Jumper
Second
Filter Jumper
4 Hz
(Factory
Default)
10 kHz
4 Hz
(Factory
Default)
10 kHz
0 W17-A W17-B W25 W26
1 W18-A W18-B W27 W28
2 W19-A W19-B W29 W30
3 W20-A W20-B W31 W32
4 W21-A W21-B W33 W34
5 W22-A W22-B W35 W36
6 W23-A W23-B W37 W38
7 W24-A W24-B W39 W40
Table 2-5.
Gain Jumper Positions (Continued)
Gain Setting Jumper Position
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