SNT401-53 S1 YOKOGAWA Optical ESB Bus Repeater Module

Optical Conversion: Its core capability is converting ESB Bus signals to optical format for long-distance transmission.

Extended Transmission Distance: It can extend ESB Bus communication distances up to 5 kilometers (or even 10 km in total with two stages in Vnet/IP systems with R1.03 or later software). This is crucial for sprawling plant layouts.

Connection Methods: It supports both star type and chain type connections, offering flexibility in network architecture design.

Two-Channel ESB Bus Communication: The module is designed to handle two ESB bus communication channels, contributing to its efficiency in complex setups.

Integration: It connects from ESB Bus Coupler Modules (like SEC401, SEC402) on safety control units or ESB Bus Interface Modules (like SSB401) on safety node units (e.g., SNB10D) via ESB Bus cable. It then connects to its slave module (SNT501) via optical fiber.

Compact and Lightweight: With a weight of approximately 0.3 kg, it's designed for easy installation and integration.

Large-Scale Industrial Facilities: Essential for connecting widely dispersed equipment and control rooms, enabling centralized monitoring and control over extended areas.

Safety Instrumented Systems (SIS): Since it handles the ESB Bus which connects safety control units, it plays a role in ensuring the communication integrity of critical safety systems.

Process Automation: Facilitates reliable data exchange in complex process industries like oil & gas, petrochemicals, power generation, and chemical plants, where long communication distances are common.