- 196x1 (1-wire), 98x1 (2-wire) multiplexer
- Up to 100 VDC, 100 VAC
- Up to 1 A switching/1 A carry
- Deterministic operation with hardware triggers
- Onboard relay counting
- 140 channels/s maximum switching speed
 Data Sheet |
Configure System 
The National Instruments SCXI-1175 is a high-density multiplexer switch module. With 196 1-wire channels or 98 2-wire channels, the NI SCXI-1175 is capable of routing hundreds of signals to measurement devices or from source units. Each channel uses robust electromechanical relays and is capable of switching up to 100 VDC/100 VAC or 1 A. With a scanning speed of up to 140 channels/s, the SCXI-1175 acts as an excellent front-end for high-channel-count automated test applications.
Additional Product Information
Specifications Documents
Specifications Summary
| General | |
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| Form Factor | SCXI |
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| OS Support | Windows, Real-Time, Linux |
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| LabVIEW RT Support | Yes |
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| Switch Type | Multiplexer |
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| Relay Type | Electromechanical |
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| Connectivity | D-Sub Cable |
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| Product Certifications | C-Tick, CAN/CSA, CE, FCC Part 15, IEC, UL - Product Safety |
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| Input Characteristics | |
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| Multiplexer Configurations | 196x1, 1-wire
98x1, 2-wire |
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| Maximum Switching Voltage DC (Pollution Degree 2) | 100 VDC |
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| Maximum Switching Voltage AC | 100 Vrms |
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| Maximum Switching Current | 1 A |
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| Maximum Carry Current | 1 A |
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| Maximum Switching Power | 60 W |
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| Bandwidth | 20 MHz |
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| Relay Count Tracking | Yes |
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| Voltage Category | CAT I |
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| Path Resistance (Typical) | 0.5 Ohm |
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| Thermal EMF | 3 µV |
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| Dynamic Characteristics | |
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| Mechanical Relay Life | 1 x 109 cycles |
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| Scan Rate | 140 cycles/s |
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| Timing/Triggering/Synchronization | |
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| Synchronization Bus (RTSI) | Yes |
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| Triggering | Digital |
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| External Clocking | No |
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| Physical Specifications | |
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| Length | 19.8 cm |
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| Width | 17.3 cm |
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| Height | 3 cm |
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| I/O Connector | 200-pin LFH |
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Extended Warranties
National Instruments designs and manufactures all products to minimize failures, but we know unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase covering any repair costs for up to three years.
- Significant cost savings compared to individual repair incidents
- Fault location, diagnostics, and repair by NI any time the system product fails
- All parts and labor costs covered as well as any adjustments needed to bring the hardware back to manufacturing specifications
Calibration
NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. We provide manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many of our measurement products.
Training
NI training is the fastest, most certain route to productivity with NI tools and successful application development.
Repair Services
- You can return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to bring the hardware back to manufacturing specifications.
- Contact us to obtain a Return Material Authorization (RMA) form and shipping instructions
- View your RMA support request status online
- Register your product
Technical Support
www.ni.com/support
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