SB401-10 S1 YOKOGAWA ESB Bus Interface Slave Module
The YOKOGAWA SB401-10 S1 is a single-port ESB Bus Interface Slave Module for dual-redundant ESB bus. It connects the ESB bus to a Field Control Unit or another slave module. It has the same specifications as the SB401 but with one optical fiber port, ideal for smaller systems or single-cable setups.