As smart factories integrate digital twins, AI inspection, and autonomous mobile robots (AGVs/AMRs), traditional industrial WiFi networks face severe bottlenecks in device density, latency, and roaming continuity. This article compares Industrial APs with 5G Industrial Routers, highlights the technical limits of Wireless LAN Controllers (WLCs), and explains why a 5G + WiFi hybrid architecture is becoming the mainstream choice for manufacturing.

In the Industrial Internet of Things (IIoT), a sudden power outage can lead to catastrophic data loss or critical system failures. Unlike commercial routers that immediately shut down, industrial routers equipped with supercapacitor-based protection mechanisms buy vital seconds of back-up power. This enables the execution of the "Last Gasp" mechanism—safely backing up critical operational data, closing communication session.

In the world of Industrial IoT, stability outweighs raw speed. While standard 2.6GHz or 3.5GHz bands struggle with thick concrete and vast distances, low-frequency bands like 450MHz and 700MHz are becoming the backbone of critical infrastructure. This analysis explores the physical advantages of these "golden bands"—including a 3–5x increase in coverage radius and +15dB penetration gain—and highlights how industrial-grade hardware like the Wavetel WR245.

As Industry 4.0 matures, traditional wired networks often struggle to meet the high demands of modern infrastructure. 5G Industrial Routers and CPE have emerged as the "neural centers" of the Industrial IoT, offering high reliability, low latency, and flexible deployment. These intelligent terminals combine 5G cellular modules, Wi-Fi routing, and industrial gateways, supporting critical features such as dual-SIM redundancy, rugged environmental adaptation.

Table des matières Introduction : Pourquoi les routeurs industriels sont devenus des nœuds critiques de sécurité Les 5 grands risques de sécurité liés au déploiement des routeurs industriels 2.1 Risque d'accès non autorisé 2.2 Risque de transmission de données non chiffrée 2.3 Risque de vulnérabilités firmware et d'absence de correctifs 2.4 Risque de mouvement latéral dans les réseaux OT 2.5 Risque de non-conformité réglementaire (dont EN 18031) Comment les appareils IIoT rép