Product Description
The Yokogawa SNT401-53 S1 is a high-performance optical bus repeater module designed for long-distance extension of the ESB (Extended Serial Backplane) bus in distributed control systems like CENTUM VP. It converts electrical ESB signals into optical signals, enabling noise-immune transmission over fiber optic links.
The module allows remote I/O nodes to be located beyond the distance limits of standard copper cabling. The S53 designation indicates a standard-type module with G3-compliant conformal coating for enhanced protection in corrosive industrial environments, while the S1 suffix denotes the specific hardware revision.
Technical Specifications
| Item | Specification |
|---|---|
| Hardware Model | SNT401 |
| Ordering Code | SNT401-53 S1 |
| Module Function | Optical ESB Bus Repeater (Master/Slave) |
| Optical Interface | Fiber optic link (multi-mode or single-mode) |
| Environmental Rating | ISA G3 conformal coating for corrosion resistance |
| Dimensions | 2.2 × 12.4 × 12.6 cm (W × H × D) |
| Net Weight | 0.3 kg |
| Power Supply | 5 V DC (internal system) |
| Status Indicators | Integrated LEDs for communication and link integrity |
| Transmission Medium | Fiber optic cable |
Application Scenarios
The SNT401-53 S1 is used in large-scale industrial installations where remote I/O nodes must be linked over long distances, including:
-
Offshore platforms
-
Large chemical refineries
-
Power generation plants
It ensures stable, interference-free control bus communication in environments with high electromagnetic noise or extensive cable runs.
FAQ
Q: Does the SNT401-53 S1 support redundant bus links?
Yes. In a redundant ESB bus architecture, a pair of SNT401 modules provides independent optical paths, ensuring full system availability if one fiber path fails.
Q: What is the maximum distance supported by this optical repeater?
Distance depends on the fiber type and system configuration. Typically, it supports 500 meters up to 5 kilometers or more with the appropriate transceivers.
| 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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