Description
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | IE-SR-2GT-LAN-FN |
| Order number | 1489940000 |
| Manufacturer | Weidmüller |
| Product category | Industrial security router |
| Ethernet ports | 2 × RJ45 |
| Ethernet speed | 10/100/1000 Mbps |
| Ethernet mode | Auto-negotiation, full/half duplex, Auto MDI/MDI-X |
| Routing | IPv4 Layer 3 |
| Firewall | Stateful Packet Inspection (SPI) |
| Network functions | NAT masquerading, 1:1 NAT, port forwarding |
| Switching mode | Transparent Layer 2 bridge with filtering |
| Network services | DHCP server/relay, DNS relay, NTP client |
| Monitoring | ICMP client monitoring with configurable alarm |
| Diagnostics | Remote packet capture for Wireshark |
| Modbus | Integrated Modbus TCP status server |
| USB interface | USB 2.0 |
| Configuration backup | SCM smart-card slot, ID-000 format |
| Digital input | 24 V input for WAN port disconnection (CUT) |
| Digital output | 24 V alarm output |
| Supply voltage | 7–36 VDC; nominal 24 VDC |
| Current consumption | 0.6 A at 24 VDC |
| Protection rating | IP20 |
| Operating temperature | -20°C to +70°C |
| Storage temperature | -20°C to +85°C |
| Relative humidity | 5–90%, non-condensing |
| Housing | Die-cast aluminum |
| Mounting | DIN rail or VESA 75 |
| Dimensions | 35 × 170 × 140 mm (W × H × D) |
| MTBF | Minimum 135,270 hours |
| Certifications | UL 508; FCC Part 15 Class A; EN 61000-6-2 and EN 61000-6-4 |
Specifications are drawn from the manufacturer’s product information and datasheet.
Product Introduction
Weidmüller IE-SR-2GT-LAN-FN Industrial Ethernet Router
The Weidmüller IE-SR-2GT-LAN-FN is a two-port industrial security router designed to connect and protect Ethernet network segments. Its Gigabit RJ45 interfaces support IPv4 routing, NAT, SPI firewall filtering, and transparent bridging. Additional functions include DHCP services, Modbus TCP status monitoring, and network diagnostics through remote packet capture.
IE-SR-2GT- LAN-FN
In industrial control environments, separating PLC networks from supervisory or external networks helps control traffic and limit unwanted access. The configurable firewall, network monitoring, and WAN disconnection input provide practical tools for maintaining communication boundaries in existing automation installations.
Application Scenarios & Field Pitfalls
The IE-SR-2GT-LAN-FN is suitable for industrial Ethernet installations that require controlled communication between network segments. In PLC and SCADA environments, incorrect NAT rules, firewall filters, or routing settings can prevent otherwise healthy controllers and supervisory systems from exchanging data.
Typical application scenarios
- Separating PLC control networks from plant information networks.
- Connecting industrial Ethernet segments with IPv4 routing and NAT.
- Applying firewall filtering to automation network traffic.
- Monitoring network-node availability and reporting communication faults.
- Capturing network traffic for troubleshooting Ethernet communication problems.
Field-engineering precautions
- Back up the configuration first. Preserve firewall rules, NAT mappings, IP addresses, and routing settings before replacing the router. The SCM smart-card slot and USB interface support configuration backup and restoration.
- Check both network interfaces. Confirm which port is assigned to each network segment. Reversing LAN/WAN connections can interrupt PLC communication or expose an unintended network path.
- Review firewall and NAT rules. Verify required PLC protocols, supervisory connections, port forwarding, and VLAN-related filtering before commissioning.
- Verify the CUT input wiring. This 24 V digital input physically disconnects the WAN port. Incorrect wiring or an unintended input signal can interrupt external communication.
- Confirm power compatibility. The nominal supply is 24 VDC, with a documented operating range of 7–36 VDC. Check supply stability and wiring polarity before installation.
Related Products
- 2873910000 — Weidmüller recommended alternative for the IE-SR-2GT-LAN-FN. Confirm configuration features and network behavior before migration.
- 1345270000 IE-SR-2GT-LAN — Related Weidmüller industrial security router with Gigabit Ethernet and routing functions. It is also discontinued; do not assume identical configuration or hardware.
- IE-SR-2GT-UMTS/3G — Related IE-SR router variant with cellular communication capability. Its WAN connectivity differs from the LAN-FN model.
- Industrial managed Ethernet switches — Used for Layer 2 network segmentation and traffic management; they do not automatically provide equivalent Layer 3 routing or SPI firewall functions.
- Industrial VPN routers — Used where encrypted remote access is required. Confirm VPN protocol and endpoint compatibility before selecting a replacement.
Procurement note: The IE-SR-2GT-LAN-FN is discontinued. When sourcing a replacement, verify the exact order number 1489940000, hardware condition, firmware, saved configuration, and successful operation of both Ethernet ports. If considering the manufacturer’s recommended 2873910000 alternative, compare firewall rules, routing behavior, and configuration migration requirements before installing it in a live PLC network.
