- 64x1 1-wire, 32x1 2-wire, or 16x1 4-wire multiplexer
- 4x8 2-wire matrix mode with SCXI-1332 terminal block
- Easy instrument synchronization with hardware triggers
- Up to 1 A switching/2 A carry
- 100 channels/s
- Up to 300 VDC/300 VAC, CAT II
 Data Sheet |
Configure System 
The National Instruments SCXI-1127 is a 32-channel (2-wire) high-density armature relay module that can act as a multiplexer or matrix switch. As a multiplexer, the NI SCXI-1127 can operate in different modes including 1-wire for large-channel-count systems, 2-wire for differential pair systems, or 3 and 4-wire modes for resistive measurements including RTDs and thermistors. With SCXI front-mounting terminal blocks, the SCXI-1127 becomes an 64x1 1-wire multiplexer, 32x1 2-wire multiplexer, 16x1 4-wire multiplexer, or 4x8 2-wire matrix. Expand the measurement power of your digital multimeter (DMM), or build a complete ATE switching system for all of your instruments, with one or more of these modules.
Additional Product Information
Related 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 | Matrix, Multiplexer |
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| Relay Type | Electromechanical |
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| Connectivity | Terminal Block |
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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 | 64x1, 1-wire
32x1, 2-wire
16x1, 4-wire |
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| Matrix Configurations | 4x8, 2-wire |
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| Maximum Switching Voltage DC (Pollution Degree 2) | 300 VDC |
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| Maximum Switching Voltage AC | 300 Vrms |
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| Maximum Switching Current | 1 A |
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| Maximum Carry Current | 2 A |
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| Maximum Switching Power | 30 W |
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| Bandwidth | 11 MHz |
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| Relay Count Tracking | No |
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| Voltage Category | CAT II |
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| Path Resistance (Typical) | 2 Ohm |
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| Thermal EMF | 3 µV |
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| Dynamic Characteristics | |
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| Mechanical Relay Life | 5 x 107 cycles |
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| Scan Rate | 100 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 | 96-pin DIN |
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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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