ANT401-50/CU1T Yokogawa Optical ESB Bus Repeater Master Module

Hardware Specifications

Optical ESB Communication and Signal Conversion

The ANT401-50/CU1T converts electrical ESB communication signals into optical signals to extend the physical communication distance between control system nodes.

The optical interface supports transmission over quartz single-mode fiber, with a maximum distance of 5 km per hop. Furthermore, the LC connector interface uses a 2-core fiber configuration.

The /CU1T connector unit incorporates an ESB bus terminator. Therefore, the installation must account for the specified bus termination arrangement when integrating the module into an ESB network.

For optical communication, maintain fiber polarity and connector cleanliness. Additionally, route optical cables separately from electrical power conductors to reduce mechanical damage and installation interference.

Frequently Asked Questions (FAQ)

Q: What is the maximum optical transmission distance of the ANT401-50/CU1T?

A: The module supports a maximum transmission distance of 5 km per hop using quartz single-mode optical fiber.

Q: What optical connector and fiber configuration does this module use?

A: It uses an LC-type optical connector compliant with IEC 61754-20 and requires a 2-core optical fiber configuration.

Q: What is the function of the /CU1T suffix?

A: The /CU1T suffix identifies a connector unit equipped with an ESB bus terminator.

Field Installation Guidelines

1. Module Configuration: Verify the complete model number ANT401-50/CU1T before installation. Confirm that the connector unit includes the required ESB bus terminator.

2. Optical Fiber Connection: Use quartz single-mode optical fiber with a 2-core configuration. Match the optical connectors to the module’s LC interface.

3. Fiber Routing: Route optical cables through designated cable paths. Avoid excessive bending, crushing, or tensile loading.

4. Connector Inspection: Inspect and clean optical connector end faces before mating. Secure the connectors to prevent accidental disconnection.

5. ESB Bus Termination: Confirm the termination arrangement against the system wiring documentation. Avoid adding unnecessary termination components.

6. Electrical Installation: Verify the module’s power supply and current consumption requirements against the applicable Yokogawa system documentation.

7. Commissioning: Check optical link continuity and ESB communication status after installation. Confirm communication between the connected control system nodes before placing the network into service.