©
National Instruments Corporation
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1
Installing and Configuring the
SCXI-119
X
This manual describes the electrical and mechanical characteristics of the
SCXI-1190 (quad 1
×
4, 50
Ω
,
1.3 GHz bandwidth) and the SCXI-1191
(quad 1
× 4
, 50
Ω
,
4 GHz bandwidth) multiplexer modules for the SCXI
bus and contains information concerning their installation and operation.
About the SCXI-119
X
This section summarizes the features and operation of the SCXI-119X
switch modules. In addition, refer to Appendix A,
for detailed specifications of the switch module.
The SCXI-119X modules are general-purpose, quad 4-channel,
high-bandwidth multiplexing switches. The SCXI-119X uses single-pole
double-throw, high-bandwidth relays capable of switching signals from
DC to 1.3 GHz bandwidth (SCXI-1190) and from DC to 4 GHz bandwidth
(SCXI-1191). The characteristic impedance of the channels is 50
Ω
. For the
SCXI-1190, the maximum rated voltage of the switch is 24 VDC, and the
maximum rated current is 1 A at 24 V. For the SCXI-1191, the maximum
rated voltage of the switch is 30 VDC, and the maximum rated current is
30 V
rms
at 0.33 ADC.
Installing the Software
You can control the SCXI-119X programmatically in an application
development environment (ADE) using NI-SWITCH. The supported
ADEs include LabVIEW, LabWindows/CVI, Visual Basic, and C or C++
environments. The following steps describe how to install your SCXI-119X
software.
1.
Install your ADE if you have not already done so. Refer to your ADEs
documentation for the software installation instructions.
