Westermo Lynx-3518-E-F4G-T14G-LV - Industrial Layer 3 Routing Switch
L3, 14 x 1GbE, 4 x 1G SFP, IP40, -40 to +70 °C, DIN
Version: Lynx-3518-E-F4G-T14G-LV (Art. no. 3627-4030) - WeOS Extended, Layer 3
The Westermo Lynx-3518-E-F4G-T14G-LV is a compact, high-density managed industrial Ethernet switch and router for mission-critical OT networks. With 14 x 1 Gbit/s RJ-45 ports and 4 x 1 Gbit/s SFP ports in a single DIN-rail unit, it is well suited as an aggregation and distribution point in industrial cabinets, where both copper and fibre connectivity are needed.
Powered by WeOS Extended, the switch combines resilient Layer 2 switching with advanced Layer 3 routing and network segmentation. Static and dynamic routing, VRRP, VPN and a stateful firewall make it possible to separate and connect OT zones and sites securely, while FRNT, RSTP and MRP provide fast-recovering ring and mesh topologies.
Security is built into the hardware platform: Secure Boot verifies software integrity at startup, and a Trusted Platform Module (TPM) provides a hardware root of trust for cryptographic keys. The fanless IP40 full-metal housing operates from -40 to +70 °C and is type tested for industrial, marine and trackside environments.
Key Features
- Layer 3 Routing and Segmentation (WeOS Extended)
- Static and dynamic routing (OSPFv2, RIPv1/v2) and policy-based routing
- VRRPv2/v3 for redundant gateways
- NAT/NAPT, port forwarding and 1:1 NAT
- IPsec, SSL and OpenVPN VPN for secure site-to-site communication
- Resilient Layer 2 Networking
- FRNT ring topologies, RSTP and link aggregation (LACP)
- IEC 62439-2 MRP (available as add-on licence)
- VLAN, Q-in-Q, QoS and IGMP/MLD snooping for critical OT traffic
- Built-in Cybersecurity
- Secure Boot and TPM-based hardware root of trust
- Stateful inspection firewall
- IEEE 802.1X port access control, RADIUS/TACACS+ and role-based access control
- Rugged Industrial Design
- Fanless IP40 full-metal housing
- Operating temperature -40 to +70 °C
- Tested for vibration, shock, humidity, corrosive gases and electrical disturbances
Typical Applications
- Energy and Utilities
- Routing and segmentation between OT zones in power and utility networks
- Aggregation of field networks over fibre
- Transportation and Trackside
- Trackside communication cabinets
- Infrastructure networks for smart cities
- Manufacturing and Marine
- Cell and line networks with routed connections to plant networks
- Ship and offshore networks
Technical Specifications
| Specification |
Value |
| Ports |
14 x 1 Gbit/s RJ-45, 4 x 1 Gbit/s SFP |
| Software |
WeOS 5 Extended (Layer 2 + Layer 3) |
| Switch Properties |
64 VLANs, 8 priority queues |
| Other Interfaces |
USB-C console, micro SD, 1 x digital input, 1 x digital output |
| Power Supply |
12-48 VDC rated (9.6-60 VDC operating range) |
| Operating Temperature |
-40 to +70 °C |
| Housing |
Fanless full metal, IP40 |
| Mounting |
DIN-rail; wall mount with optional kit (9100-0015) |
| Dimensions (W x H x D) / Weight |
100 x 140 x 116 mm (DIN-rail) / 1 930 g |
| MTBF (Telcordia) |
1 071 000 h |
Additional Features
- Digital I/O for local alarm and status signalling
- Micro SD slot for configuration backup and deployment
- Configuration via WeConfig, web interface (HTTPS), CLI/SSH and SNMPv3
- 5-year warranty
Certifications & Standards
- CE, EN 61000-6-2 / EN 61000-6-4 (industrial EMC)
- EN 50121-4 (railway trackside)
- DNV rules for classification - ships and offshore units
- EN/IEC 61010-1 and 61010-2-201 (electrical safety)