The National Instruments SCXI-1190 is a 1.3 GHz, 50 Ω RF switch module with four 4×1 multiplexers for SCXI systems.
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Key product information and technical features.
The SCXI-1190 provides four 4-to-1 switching groups rather than a single 16-to-1 multiplexer. It belongs to NI's SCXI switching platform.
Do not confuse it with the SCXI-1192: that model uses eight SPDT relays and has different RF ratings.
Verified product specifications.
| Configuration | Quad 4×1 multiplexer |
|---|---|
| Rated bandwidth | 1.3 GHz |
| Nominal characteristic impedance | 50 Ω |
| Insertion loss at ≤1.3 GHz | <1.5"},{"evidence_ids":["EV-BULK-7612-AD37067F90"],"label":"VSWR at ≤1.3 GHz","status":"VERIFIED","unit":"—","value":"50 dB |
| Maximum switching voltage, channel-to-channel and channel-to-ground | 24; DC, ACrms or combination V |
| Maximum switching current per channel | 1 A |
| Maximum RF carry power per channel | 10, up to 900 MHz W |
| I/O connectors | 20 SMB jacks |
| Operating temperature | 0 to 50 °C |
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Manufacturer
Modular switching platform
Quad 4×1 RF multiplexer
NI-SWITCH 1.6 lists SCXI-1190 as supported hardware; this is historical support evidence.
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Product-specific answers based on available technical information.
No. Its specified topology is quad 4×1: four separate 4-to-1 multiplexer groups.
NI recommends against this: momentary unterminated paths can cause reflections that damage some RF sources.
Yes. NI-SWITCH 1.6 lists it as supported hardware. Confirm the appropriate driver and operating-system combination for your installation.