National Instruments SCXI-1190/1191 Uživatelský manuál stáhnout pdf (Strana 9)

Installing and Configuring the

SCXI-119X

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-119X

This section summarizes the features and operation of the SCXI-119X

switch modules. In addition, refer to Appendix A, Specifications,

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.

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National Instruments SCXI-1190/1191 Uživatelský manuál Strana 9