Product Overview
The Honeywell 621-9928R Serial Link Selector Module is designed for industrial automation systems using redundant Logic Managers. It enables automatic or manual switching between multiple serial communication channels, ensuring fault-tolerant connectivity across PLCs, HMIs, and sensors. Supporting RS-232, RS-422, and RS-485 protocols, this module enhances flexibility and reliability in distributed control environments.
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | 621-9928R |
| Product Type | Serial Link Selector Module |
| Weight | 0.7 kg |
Performance and Integration
The 621-9928R supports up to eight serial channels with configurable baud rates and protocol selection. It connects through detachable screw terminals and is controlled by the Redundancy Control Module (RCM), allowing seamless switching between active and standby communication paths.
Design and Reliability
Honeywell engineered the 621-9928R with high-voltage isolation and robust signal integrity. Its modular layout fits IPC card files and supports redundant configurations. The module’s front panel connectors simplify field wiring and diagnostics.
Application
The Honeywell 621-9928R Serial Link Selector Module is ideal for industries requiring reliable serial communication switching, such as process control systems, SCADA, and automated control environments with redundant communication paths for maximum uptime.
FAQ
Q1: Is this product brand new and original?
A1: Yes, we only supply brand new, original 621-9928R modules from Honeywell.
Q2: Do you have stock available?
A2: We have inventory and typically ship within 3 days to 2 weeks depending on order size.
Q3: What shipping methods do you use?
A3: We commonly use DHL, FedEx, UPS, and EMS.
Q4: What if there’s a quality issue?
A4: We support returns within 30 days for any quality-related concerns.
| 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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