Description
The NI SCXI-1193 is a high-frequency RF multiplexer switch module designed for the National Instruments SCXI data acquisition platform. It provides flexible signal routing and switching capability for high-speed measurement applications.
The module can be configured as multiple multiplexer arrangements, including quad 8×1 multiplexers, dual 16×1 multiplexers, or a single 32×1 multiplexer. It is designed for RF and high-frequency signal switching applications with a nominal 50 Ω characteristic impedance.
🔧 Function Description
The SCXI-1193 uses electromechanical latching relays to switch measurement signals between multiple input channels and connected instruments. It is suitable for automated test systems where multiple RF or high-frequency signals need to be measured through a single acquisition path.
The module supports signal frequencies from DC to above 500 MHz and provides flexible switching topologies for laboratory testing, production testing, and measurement automation systems.
🏭 Typical Applications
• Automated test equipment (ATE)
• RF signal measurement systems
• Semiconductor testing
• Communication equipment testing
• Laboratory data acquisition systems
• High-speed measurement applications
• Research and development test platforms
• NI SCXI-based instrumentation systems
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Manufacturer | National Instruments (NI) |
| Model | SCXI-1193 |
| Part Number | 776572-93 |
| Product Type | RF Multiplexer Switch Module |
| Platform | NI SCXI Data Acquisition System |
| Channel Configuration | 32-Channel RF Multiplexer |
| Multiplexer Modes | Quad 8×1 / Dual 16×1 / Single 32×1 |
| Frequency Range | DC to 500 MHz+ |
| Characteristic Impedance | 50 Ω |
| Connector Type | MCX Connectors |
| Number of I/O Connectors | 36 MCX Jacks |
| Relay Type | Electromechanical Latching Relay |
| Relay Contact Material | Silver Palladium and Gold |
| Maximum Scan Rate | 100 operations/s |
| Switching Voltage | 30 V maximum* |
| Switching Current | 0.3 A maximum* |
| Bandwidth | >900 MHz typical (8×1 configuration) |
| Power Supply | SCXI Chassis Supplied |
| Dimensions | Approx. 1.2 × 6.8 × 7.8 in |
| Weight | Approx. 2 lb 2 oz |
| Country of Origin | USA |
*Specifications may vary depending on configuration and operating conditions.
⚡ Key Features
• 32-channel RF multiplexer switching capability
• Supports high-frequency measurement signals
• Flexible channel configuration options
• 50 Ω RF signal path design
• Electromechanical relay switching
• Compatible with NI SCXI measurement systems
• Suitable for automated measurement environments
🔌 Communication & Integration
The NI SCXI-1193 is installed in an SCXI chassis and works together with compatible National Instruments data acquisition hardware and software.
Typical integration steps include:
• Install the SCXI-1193 module into the SCXI chassis
• Connect RF input and output signals through MCX connectors
• Configure channel switching topology
• Set measurement channels in NI software environment
• Verify signal routing and acquisition performance
🛠️ Installation Notes
Before installation, verify the complete model number SCXI-1193, chassis compatibility, connector type, and measurement system configuration.
Ensure the RF signal source and measurement equipment are correctly terminated at 50 Ω. Avoid switching unsuitable active RF signals because improper termination may affect signal integrity or damage connected equipment.
After installation, check relay operation, channel switching status, signal path continuity, and measurement accuracy.
⚙️ Commissioning Checklist
• Confirm SCXI chassis compatibility
• Verify module part number
• Check MCX cable connections
• Confirm 50 Ω termination
• Configure multiplexer topology
• Test relay switching operation
• Verify measurement channels
• Check signal quality
• Record system configuration
⚠️ Compatibility Notice
The NI SCXI-1193 776572-93 is a dedicated SCXI RF switching module and is not a standalone PLC or controller module.
For replacement applications, confirm SCXI chassis type, software compatibility, signal frequency requirements, connector configuration, and existing test-system architecture before installation.
📦 Product Identification
Brand: National Instruments
Model: SCXI-1193
Part Number: 776572-93
Product Type: RF Multiplexer Switch Module
Platform: SCXI Data Acquisition System
Function: High-Frequency Signal Switching
Application: Automated Test & Measurement
