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SNT401-53

The Yokogawa SNT401-53 is an Optical ESB (Enhanced Serial Bus) Bus Repeater Master Module designed to extend the communication distance of the ESB bus in safety control systems. By converting electrical signals to optical signals, it facilitates long-distance, high-speed data transmission between safety control units and safety node units.

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Key Specifications

Model: SNT401-53

Function: Optical ESB Bus Repeater Master Module

Communication Channels: 2-channel ESB bus communication

Connection Type: Optical fiber cables for high-speed data transfer

Extended Transmission Distance: Up to 5 kilometers

Operating Temperature: -40°C to +85°C

Vibration Resistance: 10 Grms

EMI/RFI Resistance: Minimizes electromagnetic and radio-frequency interference

Power Supply: 24 VDC

Weight: Approximately 0.3 kg

Mounting Style: Style CU1N (without terminator)

Explosion Protection: None

Compliance: ISA Standard G3

Temperature Range: -20°C to +70°C (for maintenance purposes)

✅ Key Features

Dual Redundant Configuration: Supports both star and chain-type connections, allowing for flexible network topologies.

Extended Reach: Enables communication distances up to 5 km, suitable for large-scale industrial applications.

High Reliability: Designed to operate in harsh industrial environments with resistance to vibration and electromagnetic interference.

Compact Design: Lightweight and space-saving form factor suitable for industrial environments.