Product Description
The Yokogawa SNT501-53 S1 is a high-reliability slave-side optical repeater module designed to extend the ESB (Extended Serial Backplane) bus for CENTUM VP and ProSafe-RS systems. Acting as the remote counterpart to the master-side repeater, it converts optical signals from the Field Control Unit (FCU) back into electrical signals for the local I/O node backplane.
Engineered for maintenance and replacement in existing architectures, the SNT501-53 S1 features extended temperature tolerance and G3-compliant conformal coating, providing superior resistance to chemical corrosion, salt spray, and other environmental stressors. This makes it essential for remote I/O nodes in harsh or volatile process areas.
Technical Specifications
| Item | Specification |
|---|---|
| Ordering Code | SNT501-53 S1 |
| Module Type | Optical ESB Bus Repeater (Slave Side) |
| Explosion Protection | Standard type (-5) – no explosion protection |
| Environmental Rating | ISA G3 conformal coating (-3) |
| Thermal Range | -20°C to +70°C |
| Network Role | Decodes optical ESB signals for remote I/O nodes |
| Hardware Revision | S1 |
| Status Monitoring | On-board LED diagnostics for link status and synchronization |
| Mounting | Dedicated repeater slot in remote node unit |
| System Usage | Maintenance-optimized for high-availability DCS networks |
Application Scenarios
The SNT501-53 S1 is deployed in decentralized control layouts where remote I/O nodes are located in outdoor cabinets or unconditioned environments, such as:
-
Upstream oil and gas facilities
-
Wastewater treatment plants
-
Coastal chemical plants
Its extended temperature range and G3 conformal coating ensure reliable performance under extreme temperatures and corrosive atmospheres, including sulfur or salt-laden air.
FAQ
Q: Is the SNT501-53 S1 intended for new system designs?
No. The -53 configuration (-20 to 70°C) is primarily for maintenance and replacement in existing installations. For greenfield projects, consult current Yokogawa specifications for standard-temperature modules.
Q: Does this slave module require a specific master module?
Yes. The SNT501-53 S1 must be paired with a compatible master-side optical repeater (e.g., SNT401) to complete the fiber optic bridge between the controller and remote node.
| 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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