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July 2025
SCXI-1191
SCXI-1191, 4 GHz, Multiplexer Module
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments SCXI-1191 Multiplexer Module
The SCXI-1191 Multiplexer Module utilizes single-pole double-throw, high-bandwidth relays which can switch signals from DC to 4 GHz bandwidth. This module has a maximum rated switch voltage of 30 V and a maximum rated current of 0.33 A at 30 V. The NI SCXI-1191 can only operate in multiplexed mode.
This Multiplexer Module can be joined to a DAQ device in a PXI combination chassis like the PXI-1010 or PXI-1011. To accomplish this, a PXI combination chassis with the SCXI modules installed and a PXI MIO DAQ device or a computer-based device that can control SCXI in the farthest right slot of the PXI part of the combination chassis, are both needed. PXI combination chassis can utilize SCXI and PXI modules simultaneously. No external cabling is required to join a PXI multifunction I/O module to the SCXI bus since the link between the SCXI backplane and the PXI backplane is accomplished via a local bus interface to a PXI multifunction I/O module inserted in the farthest right slot.
If the user wants to remove the NI SCXI-1191 from Measurement & Automation Explorer, they can firstly click twice on the Measurement & Automation Explorer icon on their PC. Then, expand Devices and Interfaces and find the chassis in the list of devices. Select expand chassis. Next, right-click on the module or chassis to be deleted and click Delete. Lastly, the user can click Yes to confirm deletion or click No if they do not wish to remove the device. However, keep in mind that if the user erases an SCXI chassis, it will also remove the modules in the chassis. The configuration details for the modules will additionally be erased.
SCXI-1191 Obsolete Status has been announced by National Instruments, but the module will still be available for purchase and repairs by Apex Waves.
| Model | SCXI-1191 |
|---|---|
| Manufacturer | National Instruments |
| Type | Multiplexer Module |
| Banks | 4 |
| Channels Per Bank | 4 |
| I/O Connectors | 20 SMA jacks |
| Dimensions | 1.2 in. × 6.7 in. × 7.6 in. |
| Weight | 1 lb. 13 oz. |
| SCXI-1191 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for SCXI-1191:
National Instruments SCXI-1191 Frequently Asked Questions
Question: What is the maximum rated voltage of the switch for the SCXI-1191?
Answer: The maximum rated voltage of the SCXI-1191 switch is 30 V.
Question: What is the maximum rated current for the SCXI 1191?
Answer: The maximum rated current for the SCXI 1191 is 0.33 A at 30 V.
Question: Does the power have to be off before I insert the NI SCXI-1191 into a chassis?
Answer: The NI SCXI-1191 should not be inserted into a chassis that is powered on or it will risk being damaged.
Question: Does the SCXI-1191 use single-pole double-throw relays?
Answer: Yes, the SCXI-1191 uses single-pole double-throw, high-bandwidth relays.
Driver Downloads for SCXI-1191
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