
Yokogawa S9345FA Optical ESB Bus Repeater Module
General Overview: The Optical ESB Bus Repeater Module serves to convert the ESB Bus, linking safety control units, safety node units, and N-IO nodes, into optical signals. It enables the extension of ESB Bus transmission distance by utilizing Optical ESB Bus Repeater Master Module (SNT401) and Optical ESB Bus Repeater Slave Module (SNT501) connected via optical fiber cable. The extension can reach up to 5 km. SNT401 Optical ESB Bus Repeater Master Module: Connects from ESB Bus Coupler Module (SEC401, SEC402) on the safety control unit or ESB Bus Interface Module (SSB401) on the safety node unit (SNB10D) via ESB Bus cable. Available with or without a terminator. SNT501 Optical ESB Bus Repeater Slave Module: Connected from Optical ESB Bus Repeater Master Module or N-ESB Bus Module via fiber-optic cable. Additionally connected via ESB Bus cable to ESB Bus Interface Module (SSB401) on the safety node unit (SNB10D). Standard Specifications: Function: ESB Bus optical transpo