Overview
The Yokogawa S2EN402-S0001 Bus Coupler Module is designed to enable fast, reliable, and redundant communication within safety instrumented systems (SIS). It connects the Safety Control Unit (SCU) to N-IO nodes via the N-ESB bus, using two RJ-45 ports to provide dual-redundant data paths. This redundancy enhances system availability and fault tolerance, which is critical in oil & gas, chemical processing, and power generation environments.
The module supports 100 Mbps transmission over UTP cables (Enhanced Category 5 or better), with a maximum distance of 100 meters per link. Its compact form factor and ISO/IEC8877-compliant connectors make integration into ProSafe-RS architectures straightforward, supporting scalable, high-availability safety networks.
Technical Data
| Specification | Details |
|---|---|
| Model Number | S2EN402-S0001 |
| Product Type | N-ESB Bus Coupler Module |
| Dimensions | 144 × 100 × 30 mm |
| Weight | 0.22 kg |
Typical Applications
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Safety Instrumented Systems (SIS): Ensures redundant communication between SCUs and N-IO nodes for emergency shutdown, fire, and gas detection systems.
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Oil & Gas Facilities: Provides high-availability communication in hazardous areas.
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Chemical Processing Plants: Supports distributed safety logic and I/O coordination.
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Power Generation: Enables fast, secure data exchange in turbine and boiler protection networks.
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OEM Safety Panels: Integrated into custom safety architectures for regulated industrial applications.
Example: In a refinery SIS, the S2EN402-S0001 maintains uninterrupted communication between controllers and field I/O even if one network path fails, ensuring operational safety and system integrity.
FAQ
Q: What is the function of the S2EN402-S0001 module?
A: It serves as a bus coupler, enabling high-speed communication between SCUs and N-IO nodes.
Q: How many communication ports does it have?
A: Two RJ-45 ports, providing dual-redundant N-ESB connections.
Q: What cable type is required?
A: Enhanced Category 5 or better UTP cables.
Q: Is it compatible with Yokogawa’s ProSafe-RS system?
A: Yes, it is specifically designed for ProSafe-RS integration.
Q: What is the maximum cable length supported?
A: Up to 100 meters per connection.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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