The Yokogawa ANT502 Optical ESB Bus Repeater Module is a slave module designed to extend the ESB bus transmission distance up to 5 km using optical fiber when paired with the ANT401 master module. It supports both chain and star connection topologies and enables reliable, long-distance communication within Yokogawa control systems.

Technical Specifications

Applications

• Long-distance ESB bus extension in process control systems

• Redundant optical bus configurations in distributed control systems

• Integration into ANB11 or ANT10U units for optical communication

Advantages

• Extends ESB bus up to 5 km with high reliability

• Compact and lightweight for easy installation

• Supports redundant configurations for high system availability

• HKU interface option allows cabinet environmental monitoring

• Flexible installation in different unit types and slots

FAQ

Q1: What is the maximum distance the ANT502 can extend the ESB bus?

A1: Up to 5 km when paired with ANT401 and proper optical fiber.

Q2: Can ANT502 work alone?

A2: No, it must be used as a slave in combination with an ANT401 master module.

Q3: What type of optical fiber is required?

A3: Single-mode quartz fiber with LC connectors.

Q4: How many ANT502 modules can be connected in a system?

A4: Up to 8 modules can be connected in a chain or star configuration.

Q5: Does ANT502 support redundancy?

A5: Yes, it supports dual-redundant installation.

Q6: What units can host the ANT502 module?

A6: It can be installed in ANB11 or ANT10U units.

Q7: Is there an explosion-protected version?

A7: Yes, the suffix “-E” indicates explosion protection.

Q8: What is the power consumption of the ANT502?

A8: Approximately 0.5 A.

Q9: Does ANT502 have an environmental monitoring function?

A9: Yes, with the /HU1A or /HU1B option, it can monitor cabinet conditions.

Q10: What connectors are used on the optical interface?

A10: LC connectors compliant with IEC61754-20 standard.