Milesight UF51-504AE – 5G Outdoor CPE
The Milesight UF51-504AE is a 5G Sub-6 GHz outdoor CPE combining 5G NR SA/NSA connectivity, built-in GPS, RS485 serial, and galvanically isolated DI/DO in a single IP67-rated enclosure. It connects to 5G networks across bands N1, N3, N7, N28, N77, and N78, covering all major UK 5G frequencies, with downlink throughput up to 4.67 Gbps via dual carrier aggregation. A quad-core ARM Cortex-A55 at 2 GHz and 1 GB LPDDR4x RAM handle concurrent data acquisition and transmission without bottleneck.
Power is supplied via a single 802.3at PoE cable on the WAN port, removing the need for a separate DC run in pole or wall-mounted installations. Node-RED is built in for local edge logic and automation. The Milesight DeviceHub platform provides remote configuration, firmware updates, and event-based alerting across distributed fleets.
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)
- 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 CCTV and Video Surveillance Backhaul
The UF51-504AE delivers the sustained 5G throughput needed for multi-camera IP surveillance backhaul in locations where fixed broadband is unavailable or impractical. Its IP67 rating and pole-mount hardware mean it installs directly alongside cameras on street furniture, car park columns, or perimeter fencing. The 802.3at PoE PD input keeps cabling simple – a single run from a PoE switch powers the unit and carries data.
Traffic Management and Smart Highway Systems
Traffic monitoring controllers, variable message signs, and roadside sensor arrays need an always-on 5G connection and local GPS positioning data. The UF51-504AE combines both in a single weatherproof unit. Its DI/DO interfaces connect directly to traffic loop detectors or signal control hardware. The GNSS output streams position data over NMEA0183 via serial port, MQTT, or TCP for integration with traffic management platforms.
SCADA and Industrial Remote Monitoring
The RS485 port with Modbus TCP/RTU support connects the UF51-504AE directly to PLCs, RTUs, inverters, and meters on industrial sites where a fixed network connection is not viable. Data passes from the field device to a SCADA head-end via 5G, with failover to 4G LTE maintaining continuity if the primary 5G signal drops. Node-RED handles local data pre-processing, reducing bandwidth consumption and cloud infrastructure cost.
Public Sector and Smart City Infrastructure
Environmental monitoring stations, public Wi-Fi backhaul nodes, and smart lighting controllers benefit from the UF51-504AE’s combination of outdoor durability and broad protocol support. The DeviceHub management platform allows a single operations team to configure, monitor, and update units across a city estate from a central dashboard. Event alarms trigger on network state changes, link switches, or cellular traffic thresholds.
Temporary Outdoor Site Connectivity
Construction sites, temporary command posts, and outdoor event infrastructure need a robust 5G uplink that installs quickly and survives exposed conditions. The UF51-504AE mounts on any standard pole or wall surface in minutes using the included hardware. PoE PD input means a single Ethernet cable from a site switch is all that is needed on-site. Pair it with a fixed IP SIM card for remote access and VPN connectivity back to head office.
Frequently Asked Questions
Does the UF51-504AE support dual SIM?
No. The UF51-504AE has a single Micro SIM (3FF) slot. It does not support dual SIM or eSIM. WAN failover is available between the cellular interface and the Ethernet WAN port. If dual SIM failover is a requirement, consider Teltonika 5G routers such as the RUTM series, which support dual SIM. Speak to our team on 0300 124 6181 to discuss the right option for your deployment.
What is the difference between the UF51-504AE and UF51-504AE-W4?
Both variants share the same hardware platform, IP67 enclosure, 5G connectivity, GPS, RS485, and DI/DO. The UF51-504AE-W4 adds optional Wi-Fi 6 (802.11ax) with dual-band 2.4 GHz and 5 GHz support, 4 x 4 MIMO, and up to 3.6 Gbps combined wireless throughput. The UF51-504AE covered on this page does not include Wi-Fi. If you need Wi-Fi on the UF51 5G Router then please order the UF51-504AE-W4 variant.
What VPN protocols does the UF51-504AE support?
The UF51-504AE supports OpenVPN (multiple clients and server), IPsec (multiple clients and server), L2TP client, and PPTP client. It also includes MilesightVPN for simplified site-to-site and remote access configuration via the DeviceHub platform. For a full overview of VPN options for cellular routers, see our guide to VPN on cellular routers.
How is the UF51-504AE powered?
The UF51-504AE accepts 9-48 V DC via a 2-pin 3.5 mm terminal block, or 802.3at PoE PD on the LAN1/WAN port. DC and PoE cannot be used simultaneously. A PoE injector is included in the box. Power consumption without Wi-Fi is 4.8 W typical and 6.5 W maximum.
Does the UF51-504AE support RS232?
RS232 is a hardware optional configuration on the UF51-504AE. The standard unit ships with RS485. RS232 requires a specific hardware variant – contact us on 0300 124 6181 before ordering if RS232 is a requirement for your application.
What SIM card do I need for the UF51-504AE?
The UF51-504AE uses a standard Micro SIM (3FF) format. For SCADA, remote access, and CCTV backhaul applications a fixed IP SIM card is usually the right choice, as it gives the router a static public IP address and simplifies VPN and firewall configuration. 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
Browse the full range of Teltonika 5G routers for dual SIM and eSIM 5G options in DIN rail form factors. For secure remote access over cellular, read our guide to VPN on cellular routers. For SIM card options compatible with the UF51-504AE, visit our IoT SIM connectivity hub or speak to the team on 0300 124 6181.

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