Description
Emerson KJ2221X1-BA1
Technical Specifications:
- Brand: Emerson
- Model Number: KJ2221X1-BA1
- Product Type: SISNet Repeater Module
- System Platform: Emerson DeltaV SIS
- Power Supply: 24 VDC nominal, 300 mA maximum
- Operating Temperature: 0°C to +55°C
- Relative Humidity: 5% to 95% (non-condensing)
- Dimensions: 110 mm × 45 mm × 28 mm
- Weight: 0.313 kg
- Communication Protocol: SISNet (DeltaV SIS standard)
Functional Features:
- Signal Amplification: Amplifies and regenerates SISNet signals to extend network transmission distance
- Electrical Isolation: Provides galvanic isolation for improved noise immunity and system protection
- High-Speed Data Communication: Designed for high-speed data communication in industrial control environments
- Network Redundancy: Supports redundant SISNet network configurations for safety-critical applications
- Modular Design: Compact modular structure for easy installation and maintenance
- Industrial-Grade Design: Suitable for harsh industrial environments with wide temperature tolerance
Application Scenarios:
- Petrochemical safety instrumented systems
- Power industry safety monitoring and control
- Metallurgical process safety systems
- Automotive manufacturing safety control systems
- Food and beverage production safety systems
- Any DeltaV SIS installation requiring network extension or signal regeneration
Material Composition:
- Industrial-grade electronic components
- Multi-layer PCB with SISNet communication and signal conditioning circuitry
- Compact modular housing for DIN-rail or panel mounting
Structural Features:
- Compact modular form factor (110 mm × 45 mm × 28 mm)
- SISNet communication ports for network connection
- 24 VDC power input terminals
- Status indicator LEDs for communication and power monitoring
- DIN-rail or panel mounting capability
Working Principle:
The KJ2221X1-BA1 receives SISNet network signals from one segment, amplifies and regenerates them, and retransmits the clean signal to the next network segment. The module provides electrical isolation between network segments, preventing noise propagation and ground loop issues. This ensures reliable, high-integrity communication across the safety instrumented system network.
Installation Requirements:
- Mount the module on a DIN rail or directly on a panel
- Connect 24 VDC power supply to the module power terminals
- Connect SISNet network cables to the appropriate input and output ports
- Configure the module through the DeltaV SIS engineering software
- Verify network signal quality after installation
Usage Precautions:
- Ensure the 24 VDC power supply is stable and within acceptable range
- Verify SISNet network topology compliance with the repeater installed
- Do not exceed the specified operating temperature and humidity ranges
- Do not disassemble the module as it contains no user-serviceable parts
- Perform functional testing after installation to verify signal regeneration
