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The WideIOT NAT Coupler is a specialized security isolation device for production networks. It supports IP renaming for unified IP planning, enables cross-segment device access via network segmentation, and effectively mitigates same-segment conflicts and broadcast storms. It is ideal for industrial networks demanding high data reliability, including those with PLCs, HMIs, CNCs, DCSs, and MES.
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Leading provider of industrial IoT solutions for digital and intelligent transformation. Established in 2011, we have served over 20,000 customers in more than 100 countries.
A specialized security isolation device for production networks | Industrial Network Isolation
3× 100M Ethernet | 2× Serial
Wi‑Fi | Ethernet
IP Renaming | Firewall | ACL
-20~70°C | 9‑35V DC | EMC Level 4
3-Network-Port NAT Translation Gateway for Multi-Segment Interconnection
Advanced capabilities designed for industrial network isolation
Detailed technical specifications for the WC503 NAT Coupler
Choose the right WC503 configuration for your network isolation requirements
RS485 serial ports – ideal for connecting to Modbus RTU devices, PLCs, and industrial instruments.
RS232 serial ports – suitable for legacy equipment and console connections.
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Access technical documentation and resources for the WC503 NAT Coupler
WC503 Product Specification (PDF)
NAT Coupler User Manual (PDF)
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Frequently asked questions about the WC503 NAT Coupler
The WC503 provides network isolation and IP translation between device networks (PLCs, HMIs, CNCs) and application networks (MES, SCADA). It enables unified IP planning, cross‑segment access, and prevents IP conflicts and broadcast storms.
WC503 supports 3 IP conventions, allowing mapping of up to three internal subnets to external IPs for seamless integration.
Yes. The NAT Coupler performs IP translation, allowing devices with identical IP addresses in different subnets to coexist and communicate with upper systems without conflict.
Industrial‑grade design with wide voltage 9‑35V DC, wide temperature -20°C to 70°C, and EMC level 4 protection. Suitable for factory floors and industrial cabinets.
Yes, WC503 supports both Wi‑Fi (2.4GHz, 802.11b/g/n) and Ethernet connections, providing flexible networking options. You can use Wi‑Fi for wireless device segments and Ethernet for backbone connectivity.
Built‑in firewall with SPI, DoS prevention, ACL, IP‑MAC binding, and optional VPN (L2TP, PPTP, OpenVPN, IPsec) for secure tunneling.
Yes, the two RS232/485 serial ports support Modbus RTU, making it easy to connect to PLCs, instruments, and other industrial devices.
We offer 1‑year warranty and lifetime technical support. 7×24 hotline, online chat, and remote assistance are available. On‑site deployment services can be arranged.
Our networking specialists are ready to help you choose the right WC503 NAT Coupler for your network segmentation needs.