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CompactRIO module for RS422

The NCT 4422 cRIO Module is a compact, high-performance module designed for RS422 serial communication. Featuring 4 differential input/output channels, high-speed TTL support, and low latency operation, it provides reliable communication for industrial automation and embedded systems..

  • Detail
  • Special Features
  • Specification

  • The NCT 4422 is designed for high-speed serial communication in embedded systems and industrial automation applications.

  • It is ideal for environments requiring robust, energy-efficient communication, such as RS422-based protocols (e.g., SSI, RS232).

  • The module includes 2 RJ45 sockets providing connections for four differential input channels and four differential output channels.

  • Low latency performance with typical input and output latencies of 46 ns and 35 ns, respectively.

  • The RS422 common mode voltage range (–7 V to +12 V) ensures compatibility with a wide range of devices in diverse applications.

  • Integrated LED indicators provide quick status identification for active communication channels.

  • 4 Differential I/O Channels: Reliable, high-speed RS422 communication with both digital inputs (RX) and outputs (TX)

  • TTL Mode Support: High-speed single-ended I/O for extended compatibility with various systems

  • RS422 Common Mode: Supports a range of –7 V to +12 V for maximum compatibility

  • Low Latency: Input latency: 46 ns (typical), Output latency: 35 ns (typical)

  • Wide Protocol Support: Compatible with SSI, RS232, and other RS422-based protocols

  • Adaptability: FPGA code available for specific protocols on request

  • Easy Integration: Seamless integration with CompactRIO systems from NI (National Instruments)

  • LED Status Indicators: Built-in LED displays for real-time monitoring of active channels

Feature Specification
Channels 4 differential I/O channels (2x RX, 2x TX)
Latency (Input) 46 ns (typical)
Latency (Output) 35 ns (typical)
RS422 Common Mode Voltage –7 V to +12 V
TTL Mode Yes, for single-ended I/O
Protocols Supported SSI, RS232, RS422-based protocols
FPGA Code Available on request for custom protocols
Connectors 2x RJ45 sockets for I/O, PCB connection for power
LED Indicators Yes, for active channel status
Power Supply PCB connection for power
Operating Environment Compatible with NI CompactRIO systems
Applications Industrial automation, embedded systems, serial comm testing