Emerson KJ2221X1-BA1 DeltaV SIS repeater module, extends safety bus communication for DeltaV safety instrumented system, SIL certified spare part.

Product Overview

• Part No: KJ2221X1-BA1
• Brand: EMERSON DeltaV

• Category: SIS Repeater Module KJ2221X1-BA1 is a dedicated communication repeater for DeltaV SIS safety system. It regenerates and extends safety bus signals to expand SIS node transmission distance. It supports fault diagnosis and isolated signal transmission to improve anti-interference performance. Hot-swap design allows online replacement without interrupting safety logic. Widely deployed in petrochemical and power plant safety control systems.

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Core Features

• Signal regeneration & extension for DeltaV SIS safety bus
• Electrical isolation enhances communication stability
• Built-in communication fault diagnostics
• Hot-swappable for online maintenance

• Meets SIL safety standards for safety instrumented systems

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Technical Specifications

• Power supply: 24 VDC
• Operating temperature: -40°C ~ +70°C
• Storage temperature: -40°C ~ +85°C

• Protection Class: IP20 inside control cabinet

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Compatibility & Application

• Compatible with DeltaV SIS safety system hardware
• Used in oil & gas, chemical and power plants
• Extends communication links for safety shutdown & interlock systems