Product Description
The SNT401-53/CU1N is a high-performance Optical ESB (Extended Serial Bus) Repeater Master Module designed to extend communication distances within Yokogawa distributed control system networks. By converting electrical ESB signals into fiber-optic communication, the module enables stable, high-speed data transmission between control system nodes located across large industrial facilities while providing strong immunity to electromagnetic interference (EMI).
Engineered for demanding industrial environments, the SNT401-53/CU1N ensures reliable operation across a wide temperature range and harsh atmospheric conditions. The module typically operates together with optical repeater slave units to maintain seamless ESB communication, ensuring synchronized data exchange across distributed control system architectures such as Yokogawa CENTUM platforms.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Identification | SNT401-53/CU1N |
| Device Function | Optical ESB Bus Repeater Master Module |
| Communication Type | Optical ESB (Fiber Optic) |
| Connector Interface | CU1N Connector Unit for ESB bus |
| System Compatibility | Yokogawa CENTUM series DCS architectures |
| Explosion Protection | None (standard configuration) |
| Environmental Rating | ISA Standard G3 |
| Operating Temperature | -20°C to +70°C |
| Communication Media | Fiber optic cable |
| Weight | 3.0 kg |
Application
-
Distance Extension: Connects remote Field Control Stations (FCS) to central control rooms when communication distances exceed the limits of copper ESB cabling.
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EMI-Sensitive Environments: Fiber optic communication isolates the control network from electrical noise produced by high-voltage equipment, switchgear, or variable frequency drives (VFDs).
-
Large-Scale DCS Deployment: Supports plant expansions where distributed subsystems require reliable long-distance communication.
-
Industrial Network Stability: Maintains synchronized communication between critical process control nodes in large automation systems.
Technical FAQ
What does the CU1N suffix indicate in the model number?
The CU1N suffix refers to the integrated connector unit used for ESB bus interfacing. It ensures mechanical and electrical compatibility with Yokogawa rack backplanes and ESB communication infrastructure.
Is the SNT401-53/CU1N suitable for outdoor or non-climate-controlled cabinets?
Yes. With an ISA G3 environmental rating and an operating temperature range of -20°C to +70°C, the module is designed to operate reliably in industrial cabinets exposed to harsh environmental conditions.
| 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 |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| 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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