Yokogawa ANT502-53 ESB Optical Communication Repeater

Product Description

Product Overview

YOKOGAWA ANT502-53 S1 is an Optical ESB Bus Repeater Slave Module designed to extend ESB bus communication distances within Yokogawa distributed control systems. The module converts electrical ESB bus signals into optical signals, enabling long-distance, noise-immune communication across large industrial facilities.

It is commonly deployed in CENTUM VP systems and works in conjunction with FIO and N-IO architectures, providing stable and reliable ESB bus extension in environments where electrical transmission limits or electromagnetic interference are concerns.

Functional Description

The ANT502-53 operates as a slave-side optical repeater on the ESB bus. By converting electrical signals to optical fiber transmission, it allows ESB networks to span long distances while maintaining signal integrity and deterministic communication behavior.

Its design supports flexible network topologies and redundant bus configurations, making it suitable for high-availability control systems deployed over wide plant areas.

Technical Specifications

Electrical & Communication

• Signal Conversion

• Electrical ESB bus ⇔ Optical fiber

• Communication Speed

• ESB bus standard, up to 1.25 Mbps

• Transmission Distance

• Up to 5 km per optical hop

• Redundancy

• Supports dual redundant ESB bus connections

System Compatibility

• Yokogawa CENTUM VP

• FIO and N-IO subsystem architectures

• ESB-based control and I/O networks

Mechanical Specifications

• Dimensions: 155.9 × 130 × 32.8 mm

• Weight:  0.2–0.25 kg (configuration dependent)

• Installation: Rack or panel mounting, compact form factor

Environmental Conditions

• Operating Temperature: 0 °C to +55 °C

• Storage Temperature: -20 °C to +70 °C

• Relative Humidity: 10% to 90% RH, non-condensing

Compliance & Documentation

• Certificate of Origin (COO)

• Factory Test Report available