OPTICAL ESB BUS EXTENSION · SLAVE MODULE · UP TO 5 KM
Yokogawa ANT502-53 Optical ESB Bus Repeater Slave Module
An optical ESB bus repeater slave module used with an ANT401 master to extend a CENTUM VP node connection over fiber.
Product Identification
ANT502-53 belongs to Yokogawa’s ANT502 optical ESB bus repeater slave family. An ANT401 master and ANT502 slave are used as a pair to convert the ESB bus to optical signaling and extend the node connection up to 5 km.
The ANT502 can be installed in ANB11 node units or ANT10U cabinets. Single and dual-redundant arrangements use different slot rules, so the cabinet record and connector-unit execution must accompany the complete ANT502-53 label.
Engineering Data
Functions
Long-distance node extension
Carries the ESB connection over optical media for distances beyond a copper cabinet link.
Master-slave architecture
Uses a defined ANT401 master and ANT502 slave relationship rather than two interchangeable repeaters.
Redundant-link option
Supports the documented dual-module and slot arrangement where the system architecture requires it.
Connector-unit selection
Separates ESB, non-ESB and HKU interface requirements through the specified connector-unit choices.
About IndustryParts
https://www.industryparts.com/Exact identity before quotation
IndustryParts prepares ANT502-53 enquiries around the complete manufacturer label, requested quantity and destination. For controlled replacements, include the host-system record, field photographs and configuration evidence that apply to this exact execution.
Applications
Remote I/O nodes
Connecting an ANB11 node located away from the field control unit.
Distributed cabinets
Extending ESB communication to an ANT10U cabinet across an optical route.
Redundant control networks
Implementing the approved dual optical path with paired modules and assigned slots.
Lifecycle
Map the topology
Record ANT401 and ANT502-53 slots, optical route, redundancy mode and connector-unit option.
Protect the fiber path
Inspect connectors, bend radius, cleanliness and transmit/receive orientation before energization.
Prove communication
Confirm node recognition, link status, switchover behavior and recovery under the approved CENTUM test.
FAQ
Can ANT502-53 be used without an ANT401 master module?
No. Yokogawa defines the optical ESB extension as an ANT401 master and ANT502 slave pair.
What determines the slot plan for ANT502-53?
The ANB11 or ANT10U host, single or dual configuration and connector-unit execution define the approved positions.
Does the -53 suffix on ANT502-53 prove a connector-unit choice?
Not from the reviewed public specification. Preserve the complete label and verify the suffix against project documentation.
What fiber information should accompany a ANT502-53 enquiry?
Provide route length, connector type, redundancy design, opposite-end ANT401 identity and photographs of both installed modules.
How is a ANT502-53 replacement accepted?
Verify optical link status, node communication, diagnostics and redundant-path switchover where the second path is installed.
Send the complete ANT502-53 label, requested quantity and destination.

