Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | ANT502-50 (S1 style/option) |
| Product Type | Optical ESB Bus Repeater Slave Module |
| System Family | Yokogawa CENTUM VP |
| Function | Converts ESB bus signals to/from optical |
| Optical Interface | LC connector, single-mode fiber |
| Max. Transmission Distance | Up to 5 km (typical) |
| Topology Support | Chain and star |
| Approximate Dimensions | 155.9 mm × 130 mm × 32.8 mm |
| Approximate Weight | 0.25 kg |
| Typical Pairing | Used with optical master module (e.g., ANT401) |
4. Product Introduction (Anti-Template)
The Yokogawa ANT502-50 is an Optical ESB Bus Repeater Slave Module for the CENTUM VP distributed control system. It extends the ESB (Enhanced System Bus) communication distance by converting electrical bus signals to optical signals and vice versa.
Installed at the remote or slave side of an optical ESB link, the module works in conjunction with a corresponding optical master module (such as the ANT401). It supports chain and star topologies and is designed for single-mode fiber with LC connectors, enabling transmission distances up to several kilometers. The “S1” designation typically indicates a specific style or option code. Because these modules form part of the critical control network infrastructure, the exact model, style code, and fiber/plant configuration must be verified before replacement. Units are primarily sourced as spares for existing CENTUM VP installations.

ANT502-50

ANT502-50
5. QC, Procurement & Logistics SOP
- Inbound Verification – Confirm full model number (ANT502-50 S1), optical connector condition, and physical integrity. Photograph all labels.
- Functional Testing – Install in a compatible CENTUM VP node and verify optical link status with the paired master module. Full validation requires the plant fiber network.
- QA & Packaging – Protect the LC optical ports and module housing, clean according to electronics handling practices, and pack in anti-static protective packaging with dust caps on optical connectors.
- Global Logistics & Export Compliance – Classify under the correct HS code for industrial optical communication modules. Packaging must protect optical interfaces; export documentation is prepared to minimize customs delays.
6. Technical Pitfalls & Integration Warnings
Master/Slave Pairing – The ANT502-50 is a slave module and must be paired with a compatible optical master module. Mismatched pairs will not establish a link.
Fiber Type and Connectors – Use the specified single-mode fiber and LC connectors. Incorrect fiber or dirty connectors are common causes of link failure.
Topology Limits – Observe the maximum number of nodes and total optical budget for the chosen chain or star configuration.
Style Code – Confirm the “S1” (or other) style/option code matches the installed system requirements.
7. Frequently Asked Questions (FAQ)
What is the realistic global lead time for a verified ANT502-50 S1?
As a specialized CENTUM VP optical module, availability depends on surplus stock. Typical lead time after verification is 5–15 business days plus standard shipping.
What is the primary function of this module?
It is an Optical ESB Bus Repeater Slave Module that extends ESB communication over fiber in CENTUM VP systems.
What is the maximum transmission distance?
Typically up to 5 km with single-mode fiber (subject to optical budget).
What master module is it paired with?
Commonly used with an optical master module such as the ANT401.
What system is it used with?
Yokogawa CENTUM VP distributed control systems.
Is the module still in production?
CENTUM VP optical ESB components remain part of Yokogawa’s portfolio. Specific style codes should be confirmed for current availability.
What should be confirmed before ordering a replacement?
Exact model and style code (ANT502-50 S1), optical master module type, fiber type/connectors, and network topology requirements.
