Yokogawa ANB11S Optical ESB Bus Node Unit

ANB11S is Yokogawa’s Optical ESB Bus Node Unit for N-IO/FIO, single bus with optical repeater. Its function is single optical-esb bus node unit that relays field i/o to a remote yokogawa fcu and supplies i/o-module power; the complete label, suffix and installed system must match before use.

ANB11S is designed for Optical ESB bus · single bus/repeater. Confirm the documented bus path, FCU relationship, connector arrangement and suffix rather than treating ANB11S as a generic module.

ANB11S is a single optical ESB Node Unit with an ANT522 repeater. It relays I/O to a remote FCU; it is not a generic Ethernet switch or standalone controller.

Confirm fiber type and distance, ANT522, single optical path, suffix-coded supply/protection, connector/terminator and optional HKU interface before commissioning.

Match the complete ANB11S label, optical module and fiber records, FCU, connector, power, grounding and cabinet/environment records before replacement.

ANB11S is single optical ESB. ANB11D is dual-redundant optical ESB; ANB10S/D are copper ESB Node Units. The network distance and redundancy design decide the model.

Provide the complete ANB11S suffix, ANT522/fiber details, FCU model, optical connector option, power/protection/HKU codes, photographs and quantity. Use the official GS 33J60F30-01EN document to confirm the ordered configuration; do not infer a suffix or substitute from a similar model.