The Westermo Merlin‑3103 product family delivers powerful, secure and reliable cellular connectivity for demanding industrial and energy‑sector applications. Designed for long‑term deployment in harsh environments, the Merlin‑3103 series combines compact industrial hardware, advanced cybersecurity features, and multi‑service networking capabilities to ensure uninterrupted communication across remote sites, substations, and mission‑critical automation systems.

Across the three variants — PFO (5G-ready high‑performance model), PFN (450 MHz private LTE specialist) and QFR (global LTE Cat‑4 connectivity) — the Merlin‑3103 line provides flexible deployment options for utilities, smart grid infrastructures, transportation networks and industrial automation. Each model features dual Ethernet Gigabit interfaces, dual SIM support for network redundancy, GNSS options for asset tracking, and compatibility with the Zero‑Touch Deployment software “Activator,” enabling fast and scalable commissioning of large device fleets.

Built around best‑in‑class cybersecurity, the Merlin‑3103 series integrates Secure Boot, Trusted Platform Module (TPM) hardware security, 802.1X authentication, IPSec VPN, and stateful firewall protection. Its rugged IP30 metal housing, wide operating temperature range, and high MTBF ratings ensure long‑term reliability even under extreme conditions.

Whether connecting remote assets or securing industrial automation networks, the Merlin‑3103 series provides future‑proof cellular communication trusted by modern critical infrastructure operators.