✅ Basic Function
1. Purpose: Extends the communication distance between Tricon controllers and remote I/O modules, enabling remote installation of I/O racks.
2. Communication Method: Fiber-optic communication using multimode fiber, providing electrical isolation and strong interference immunity.
3. Typical Applications: Safety-critical systems in oil & gas, chemical plants, and nuclear power, including Emergency Shutdown (ESD), Fire & Gas (F&G) detection systems.
✅ Technical Specifications
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Item
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Parameter
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Model
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4201 / 4201N
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Communication Medium
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Multimode fiber (ST connector)
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Maximum Communication Distance
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2 km (~1.2 miles)
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Communication Rate
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375 kbaud
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Supported Remote Sites
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Up to 3 remote racks
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Connectors
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6 fiber ST connectors
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Power Supply
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24V DC (18–30V DC)
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Power Consumption
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Max 30W
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Operating Temperature
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-40°C to +70°C
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Storage Temperature
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-40°C to +85°C
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Humidity Range
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10%–95%, non-condensing
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Dimensions (approx.)
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410 x 280 x 160 mm
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Weight (approx.)
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6.8 kg
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✅ Module Features
1. Redundancy: Hot-swappable support with automatic failover to improve system availability.
2. Diagnostics: Status LEDs include PASS, FAULT, ACTIVE, TX, RX1/2/3, simplifying maintenance and fault detection.
3. High Reliability: Suitable for SIL3 safety systems; compliant with TMR (Triple Modular Redundancy) architecture.
✅ Typical Applications
1. Safety Instrumented Systems (SIS)
2. Emergency Shutdown Systems (ESD)
3. Fire & Gas (F&G) Detection Systems
4. High Integrity Pressure Protection Systems (HIPPS)
✅ Replacement Models & Compatibility
Compatible with Tricon main stations, 4200N, 4201-3N, and similar modules.
Possible replacements include 4200, 4201-3, 4201N; final selection depends on system version and communication configuration.
What happens next?
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Your quote
You’ll get a fully customized quote to fit your unique needs.
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