Milesight UF51-504AE-W4 5G Outdoor CPE with Wi-Fi 6

Milesight UF51-504AE-W4 – 5G Outdoor CPE with Wi-Fi 6

The Milesight UF51-504AE-W4 is a 5G Sub-6 GHz outdoor CPE that adds dual-band Wi-Fi 6 to the core UF51 platform. It delivers 5G cellular backhaul and local 802.11ax wireless access in a single IP67-rated polycarbonate and cast aluminium enclosure. The Wi-Fi 6 radio runs 4 x 4 MIMO on both 2.4 GHz and 5 GHz simultaneously, with a combined wireless throughput of up to 3.6 Gbps. A quad-core ARM Cortex-A55 at 2 GHz, built-in GPS, RS485 serial, and galvanically isolated DI/DO complete the hardware specification.

Power arrives via a single 802.3at PoE cable on the WAN port, keeping pole and wall installations free of separate DC wiring. Node-RED runs on-device for local edge logic. The Milesight DeviceHub platform provides centralised remote configuration, firmware updates, and event-based alerting across distributed fleets. For zero-configuration remote access to field devices behind the router, MilesightVPN provides a managed tunnel without requiring a static IP.

Key Features

• 5G NR SA/NSA Sub-6 GHz – bands N1/N3/N5/N7/N8/N20/N28/N38/N40/N41/N77/N78 plus full 4G LTE fallback
• Downlink up to 4.67 Gbps with 5G dual carrier aggregation (2CC CA)
• Wi-Fi 6 (802.11ax) dual-band – 2.4 GHz up to 1200 Mbps and 5 GHz up to 2400 Mbps, 4 x 4 MIMO on both bands
• Quad-core ARM Cortex-A55, 2 GHz / 1 GB LPDDR4x RAM / 1 GB NAND Flash
• 802.3at PoE PD on LAN1/WAN port – single cable power and data in pole or wall installations
• Built-in GPS/GLONASS/Beidou/Galileo/QZSS with 2 m CEP positioning accuracy
• RS485 serial (RS232 hardware optional) with Modbus TCP/RTU client and Modbus gateway support
• 1 x DI + 1 x DO with galvanic isolation for sensor and actuator integration
• VPN: OpenVPN, IPsec, L2TP, PPTP – multiple clients and server modes
• Node-RED runtime built in for local edge application development
• IP67 waterproof polycarbonate and cast aluminium enclosure with UV protection
• Flexible mounting: pole, wall, desktop, or bottom screw – includes hose clamps for pole installation
• 3-year manufacturer warranty

Applications

Outdoor Kiosks and Self-Service Terminals

Payment kiosks, ticketing machines, visitor information points, and EV charge point displays need both a reliable 5G uplink and local wireless connectivity for tablet management, proximity displays, or contactless payment readers. The UF51-504AE-W4 provides both from a single outdoor-rated unit mounted on the same pole or structure. IP67 protection keeps the unit operational in rain, and the PoE PD input simplifies cabling to a single run.

Public Wi-Fi Backhaul and Smart City Infrastructure

Smart city Wi-Fi access points require a high-capacity 5G uplink and a local 802.11ax radio to serve public users. The UF51-504AE-W4 handles both roles in one enclosure, eliminating a separate CPE-plus-access-point installation. Wi-Fi 6 with 4 x 4 MIMO on 5 GHz serves high-density environments such as bus stations, public squares, and transport interchange areas where multiple users connect simultaneously.

Outdoor CCTV Backhaul with Local Wireless Device Connectivity

Fixed IP cameras connect via Ethernet to the LAN2 port. Additional wireless cameras or IoT sensors connect over Wi-Fi 6. All traffic passes to a monitoring centre via the 5G uplink. The UF51-504AE-W4 replaces separate IP camera router and wireless access point installations in locations such as car parks, construction sites, and event venues. Pair it with a fixed IP SIM card for direct VPN access to the camera feeds from any location.

Temporary Outdoor Event Connectivity

Outdoor events, temporary command posts, and construction welfare units need 5G connectivity and on-site wireless access for staff devices in the same deployment. The UF51-504AE-W4 installs on a temporary mast or scaffolding pole using the included hose clamps in minutes. Wi-Fi 6 handles concurrent connections from mobile phones, tablets, and laptops without throughput degradation. A single PoE cable from a site switch provides power and data.

Industrial Automation with Wireless Device Support

The RS485 port with Modbus TCP/RTU connects the UF51-504AE-W4 directly to PLCs and energy meters on outdoor industrial sites. Wireless handheld terminals, tablets used for maintenance rounds, and portable HMI devices connect over Wi-Fi 6. Node-RED handles local data processing and MQTT forwarding, reducing reliance on cloud infrastructure for time-critical control data. The 5G uplink carries bulk telemetry and remote management traffic to a SCADA platform.

Frequently Asked Questions

What is the difference between the UF51-504AE-W4 and the UF51-504AE?

The UF51-504AE-W4 adds dual-band Wi-Fi 6 (802.11ax) with 4 x 4 MIMO on both 2.4 GHz and 5 GHz. Maximum Wi-Fi throughput is 1200 Mbps on 2.4 GHz and 2400 Mbps on 5 GHz. The UF51-504AE has no Wi-Fi. All other specifications – 5G bands, GPS, RS485, DI/DO, PoE PD input, IP67 rating, and dimensions – are the same across both variants. The W4 also draws more power: 9.9 W typical and 14.4 W maximum with Wi-Fi active, versus 4.8 W and 6.5 W on the base model. Both are within the 802.3at PoE budget. See the UF51-504AE without Wi-Fi if wireless access is not required.

Can the UF51-504AE-W4 operate in Wi-Fi client mode?

Yes. The Wi-Fi radio supports both AP mode (broadcasting an SSID for client devices to connect to) and client mode (connecting to an existing upstream Wi-Fi network as a WAN source). In client mode, the Wi-Fi connection can serve as a WAN input for failover alongside the 5G cellular interface and the Ethernet WAN port.

What Wi-Fi security protocols does the UF51-504AE-W4 support?

The UF51-504AE-W4 supports WEP, WPA, WPA2, and WPA3 authentication with WEP, TKIP, and AES encryption. MAC address filtering is available with both blacklist and whitelist modes. WPA3 is recommended for new deployments. The Wi-Fi interface also supports MAC filter management and multi-level user authority for access control.

Does the UF51-504AE-W4 support dual SIM?

No. The UF51-504AE-W4 has a single Micro SIM (3FF) slot. WAN failover is available between the cellular interface, the Ethernet WAN port, and the Wi-Fi WAN (in client mode). If dual SIM cellular failover is a requirement, Teltonika 5G routers in the RUTM series support dual SIM in an industrial DIN rail form factor. Call us on 0300 124 6181 to discuss the best option for your deployment.

What VPN protocols does the UF51-504AE-W4 support?

The UF51-504AE-W4 supports OpenVPN (multiple clients and server), IPsec (multiple clients and server), L2TP client, and PPTP client. MilesightVPN provides a simplified zero-configuration tunnel for remote access to field devices without requiring a static IP address. For a full overview of VPN options for outdoor cellular deployments, see our guide to VPN on cellular routers.

What SIM card do I need for the UF51-504AE-W4?

The UF51-504AE-W4 takes a Micro SIM (3FF). For CCTV backhaul, remote monitoring, and SCADA applications a fixed IP SIM card provides a static public IP address, simplifying VPN tunnel configuration and direct device access. For general data connectivity a standard data SIM will work. See our full range of IoT SIM cards or call 0300 124 6181 for a recommendation.

Related Products and Further Reading

The Milesight UF51-504AE is the same unit without Wi-Fi, at a lower price point where wireless access is not needed. For a full overview of the Milesight router range including indoor 5G options, see the Milesight industrial router guide. For SIM card options compatible with the UF51-504AE-W4, see our IoT SIM cards or our fixed IP SIM cards. For secure remote access configuration, read our guide to VPN on cellular routers.