The Yokogawa SNT401‑53 is an optical bus repeater module designed for long‑distance ESB bus communication, providing signal regeneration, optical isolation, and stable data transmission for CENTUM control systems.
Specifications
Part Number: SNT401‑53
Series: CENTUM VP / CS 3000
Module Type: Optical Bus Repeater Module
Function: Extends ESB bus communication distance via optical transmission
Transmission Medium: Optical fiber (single‑mode)
Transmission Speed: 128 Mbps ESB bus
Optical Ports: Dual optical ports for redundant or extended links
Electrical Interface: ESB electrical bus input/output
Isolation: Optical isolation between electrical and fiber segments
Distance Support: Supports long‑distance ESB communication (kilometer‑scale)
Diagnostics: LED indicators for link status and communication health
Power Supply: Supplied via I/O base
Operating Temperature: –20 °C to +70 °C
Mounting: Mounted on Yokogawa ESB/optical repeater baseplate
Features
Optical Signal Regeneration: Restores ESB bus signals for long‑distance transmission
High‑Speed ESB Communication: Supports 128 Mbps high‑speed control bus
