Weidmüller part number 2873930000 (IE-SR-4GT-LTE/4G-USEMEA) is a Security/NAT/VPN/u-link industrial router with an integrated multi-band 4G/3G modem, designed for the US/EMEA market. It provides Gigabit Ethernet routing with 4x RJ45 ports and secure remote access via cellular or wired connections.
Technical Specifications
Networking and Interfaces
- Ports: 4x RJ45 10/100/1000BaseT(X), auto negotiation, full/half-duplex, Auto MDI/MDI-X
- Serial port: 1x RS-485, 2-wire, galvanically isolated, removable 3-pole terminal block
- USB 2.0 port for firmware update or configuration restore via flash drive
- SIM card slot: Mini-SIM (ID-000), 1 slot
- SCM card slot: Smart Card (ID-000), for configuration backup/restore
- External antenna connectors: 2x SMA female
- Digital I/O: 2 galvanically isolated inputs (VPN-initiate, WAN cut, packet filter trigger), 2 outputs (alarm, VPN-active), all 24 V
Mobile Radio (4G/3G Modem)
- Wireless module: multi-band modem (4G/3G)
- LTE Category: CAT 6, max. 300 Mbit/s download, 50 Mbit/s upload
- LTE bands: B1, B2, B3, B4, B5, B7, B12, B13, B20, B25, B26, B29, B30, B41 (EMEA/Americas)
- UMTS bands: B1, B2, B3, B4, B5, B8
- Modes: permanent connection, manual control via web interface, API or SMS, fallback
Routing, Security and VPN
- Firewall: Stateful Packet Inspection (Layer-3), transparent bridge mode (4-port switch with Layer-2 filter)
- NAT: Source/Destination NAT (Port/Host/Network)
- Routing: IPv4, extended IPv4 (per-interface network config for LAN/WAN/cellular), static and dynamic (RIPv2/OSPF)
- VPN: u-link client, OpenVPN (server or client), IPSec (initiator or responder)
Management
- Configuration: web browser (HTTP/HTTPS), SNMP v3, Windows tool
- Monitoring: SNMP v3, Syslog, event-based warnings via e-mail, relay or SMS
- IP management: static, DHCP client, DHCP server (pool-based), DNS relay
- Time sync: NTP server/client
Housing, Power and Environmental Ratings
- Housing material: aluminium, DIN rail mounting
- Dimensions (H x W x D): 150 x 35 x 115 mm
- Net weight: 632 g
- Protection degree: IP20
- Power supply: 24 V DC single input, 19.2–28.8 V range, 1.5 A at 24 V, removable 4-pin terminal block
- Overload current and reverse polarity protection: yes
- Operating temperature: -25°C to +70°C; storage: -40°C to +85°C
- Humidity: 5–90%, no condensation
- Warranty: 3 years
Approvals
cULus (E141197), EMC per EN 61000-6-2/-4 and FCC Part 15B Class B, safety per EN 62368-1, EN 62311, UL 61010-1/-2-201, security per EN 18031-1, shock/vibration per IEC 60068-2-27/-6.
Applications
Suited for secure remote access, monitoring and control of machines and plant via wired Ethernet or cellular (4G/3G) connectivity, including VPN-based remote maintenance and SMS-based alarm/control functions.
Related Weidmüller Products
- Compatible SCM smart card (configuration backup/restore) – Order No. 2909820000
- IE-SR-4GT-LTE/4G-EU (same router family, EU model) – Order No. 2873920000
- IE-SR (Gigabit Ethernet router, no modem) – Order No. 2873910000
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