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          Apter Power guarantees premium quality Yokogawa distributed control hardware, offering a highly reliable source for advanced industrial automation and system expansion parts.

        A2EE1A-T

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        1001 reviews ｜ Need a Specific Revision?
        The Yokogawa A2EE1A-T ESB bus adapter features a built-in terminating resistor and operates within a Field Network I/O (FIO) architecture, enabling the establishment of a reliable communication link between the SB401 ESB bus interface slave module and the master ESB bus.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
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        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for A2EE1A-T

        • Manufacturer:
          Yokogawa
        • Part Number:
          A2EE1A-T
        • Product Family:
          Centum CS-Centum VP
        • Product Type:
          ESB Bus Adapter
        • Stock:
          1
        • Associated Module:
          SB401-50 ESB Bus Slave Interface Module
        • Transmission Speed:
          128 Mbps (I/O module data transmission)
        • Maximum Transmission Distance:
          10 m (ESB bus cable)
        • Maximum Connectable Units:
          Max. 9 units (varies depending on FCS database)
        • Compatible Units:
          FIO Node Unit: ANB10D, ANB10S; Base Plate: A2BE2D
        • Installation Slot:
          B1-B2 (SB401-50 module slots)
        • Weight:
          0.3 kg
        • Estimated shipping dimensions:
          2.2 cm × 12.4 cm × 12.6 cm
        • Tariff Code:
          8537101190
        • Country of origin:
          Japan
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Applications Compatibility & Interoperability Monitoring & Control

        Features:

        • Adapter Between the SB401-50 ESB Bus Slave Module and the ESB Bus Physical Connection
        • Combines Capability of ESB Bus Signal Distribution with Built-in Termination Support
        • Operates in Conjunction with the SB401-50 and CENTUM VP FIO Node Units
        The A2EE1A-T ESB Bus Adapter serves as the connector unit with terminator for ESB Bus connections in Yokogawa CENTUM VP distributed control systems, providing reliable physical connectivity and signal termination at the endpoint of ESB Bus segments. It ensures proper impedance matching at the bus termination point, preventing signal reflection and maintaining data integrity across the ESB Bus network operating at 128 Mbps with a maximum transmission distance of 10 meters. The A2EE1A-T is specifically designed for use at terminal nodes of ESB Bus architectures, while intermediate nodes utilize the A2EE1A-N (non-terminating connector unit) to maintain proper bus topology. Seamless ESB Bus communication is standard with the A2EE1A-T, however using it in conjunction with the SB401-50 module ensures stable data transmission between the Field Control Unit (FCU) and connected node units.

        The A2EE1A-T provides essential physical connection functions for ESB Bus segments, and is a critical component of the communication path, directly affecting the proper, normal operation of the overall CENTUM VP system data exchange. One A2EE1A-T is required at each terminal node of an ESB Bus segment, paired with the SB401-50 ESB Bus Slave Interface Module installed in the FIO Node Unit. The A2EE1A-T connects externally to the SB401-50 module and does not occupy a rack slot itself, as its functionality is integrated as part of the ESB Bus cabling infrastructure.

        For Dual Redundant ESB Bus applications, the CENTUM VP system requires two SB401-50 modules installed in the B1 and B2 slots of the FIO Node Unit (such as ANB10D or ANB10S), or on the A2BE2D baseplate. In single configuration setups, the SB401-50 occupies the B1 slot while the B2 slot requires a dummy panel (ADCV01). In addition to standard single ESB Bus operation, the redundant configuration performs automatic failover. The dual ESB Bus configuration executes redundancy using the internal circuitry specified in the SB401-50 module options.

        The A2EE1A-T Yokogawa ESB Bus Adapter may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Yokogawa A2EE1A-T ESB Bus Adapter Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        Yokogawa A2EE1A-T ESB Bus Adapter Specs

        General

        • Manufacturer Yokogawaa
        • Model A2EE1A-T
        • Condition New Original ready stock
        • Product Family A2EE3A-NH,A2EE3A-TH
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Bus Termination: Placed at the physical end of an ESB bus segment to eliminate signal bouncing.
        • Node Expansion Link: Connects distant I/O expansion racks to the main processing unit without sacrificing bandwidth.
        • Industrial Automation Environments: Deployed heavily across mission-critical facilities like oil and gas refineries, chemical manufacturing plants, and power generation stations requiring zero downtime.
        • Primary Module Match: Designed specifically as the dedicated adapter to mount directly onto the SB401 ESB Bus Interface Slave Module.
        • System Integration: Operates natively within CENTUM VP systems utilizing FIO (Field network I/O) sub-assemblies.
        • Hardware Hosting: Mounts onto standard Yokogawa Base Plates, including the A2BE2D FIO Base Plate.
        • Coexistence: Works smoothly alongside peripheral infrastructure such as the ANT502/ANT512 Optical ESB Bus Repeaters and standard PW481/PW482 power modules.
        • Dual-Redundant Support: Supports continuous dual-redundant configurations across side-by-side base plate slots to ensure no single point of failure disrupts communications.
        • Signal Maintenance: Stabilizes the 100 Mbps transmission layer by maintaining precise impedance matching across the YCB301 ESB bus cables.
        • Diagnostics Pathing: Helps pass vital system status and diagnostic logs up to the Field Control Unit (FCU) and the Human Interface Station (HIS) graphics console via the underlying slave interface.
        Description
        The Yokogawa A2EE1A-T is an ESB Bus Adapter with built-in terminator, specifically designed as a connector unit for terminating ESB Bus connections in Yokogawa CENTUM VP distributed control systems. The A2EE1A-T serves as a critical physical layer component that ensures signal integrity and prevents signal reflection at the end of ESB Bus segments, which is essential for maintaining reliable communication across the control network.

        The A2EE1A-T is primarily used in conjunction with the SB401-50 ESB Bus Slave Interface Module, which is installed in the B1-B2 slots of FIO Node Units such as the ANB10D or ANB10S, or on the A2BE2D baseplate. In single configuration setups, the SB401-50 occupies the B1 slot while the B2 slot requires a dummy panel (ADCV01); in dual redundant configurations, two identical SB401-50 modules are installed in both B1 and B2 slots to provide ESB Bus redundancy. The A2EE1A-T is typically deployed at the terminal nodes of star or chain-connected ESB Bus architectures, where it provides the necessary termination resistance to absorb signal reflections and ensure stable data transmission at the 128 Mbps bus rate over distances up to 10 meters.

        The A2EE1A-T is specifically designed to address the challenge of signal reflection and impedance mismatch at the end of ESB Bus segments, which can cause data corruption and communication failures in high-speed industrial networks. By providing proper termination at the bus endpoint, the A2EE1A-T eliminates signal bounce-back and ensures clean signal transmission, thereby solving the critical problem of maintaining data integrity in multi-node DCS environments where up to nine units may be connected to a single ESB Bus interface.

        The A2EE1A-T finds application across various industrial process control domains, including oil and gas production, petrochemical refining, power generation, pharmaceutical manufacturing, and water treatment facilities. These sectors rely on Yokogawa CENTUM VP systems for mission-critical automation, where the A2EE1A-T ensures robust ESB Bus connectivity between Field Control Units (FCU) and distributed I/O node units. The adapter is particularly valuable in large-scale installations requiring extended ESB Bus topologies with multiple branching points, where proper termination at each segment end is mandatory for reliable system operation.
        Alternative Names
        A2EE1A T A2EEIA-T A2EE3A-NH A2EE3A-TH ANT512 ANT522 SB401
        Technical notes
        The Yokogawa A2EE1A-T meets the ISA standard's G3 corrosion resistance requirements, ensuring long-term hardware durability in harsh industrial environments with high levels of gas pollution. The Yokogawa A2EE1A-T can function as both a physical interface and a terminal, guaranteeing high-speed and stable data transmission within the local control network.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        What is the Yokogawa A2EE1A-T designed for?
        The Yokogawa A2EE1A-T is designed to provide reliable termination for ESB communication lines in distributed control systems. It helps maintain stable signal transmission and improves communication reliability across industrial automation networks.
        What problem does the Yokogawa A2EE1A-T solve?
        The Yokogawa A2EE1A-T addresses signal reflections and electrical noise that commonly occur on long communication bus cables. These issues can reduce signal quality, cause data errors, or interrupt communication between control devices.
        Where should the Yokogawa A2EE1A-T be installed?
        The Yokogawa A2EE1A-T is installed directly on an FIO Base Plate, such as the A2BE2D, alongside the SB401 Slave Module. It should always be positioned at the final node of the local ESB bus to perform its termination function correctly.
        Can the Yokogawa A2EE1A-T be reused when expanding a system?
        Yes. If additional I/O stations are added to the DCS network, the Yokogawa A2EE1A-T can be relocated to the new end of the communication bus, allowing the network to expand without replacing the existing adapter.

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