Milesight UR32 Pro Series 4G Router with POE In/Out, Serial (RS232/RS485), WiFi, 2 x Ethernet, DIO (UR32-L0GEU-P-W-485)

4G Router with Built-in PoE, Wi-Fi and RS485 (UR32-L0GEU-P-W-485)

The Milesight UR32-L0GEU-P-W-485 is a compact industrial 4G LTE Cat 4 router built for remote installations where connectivity, device power, and serial equipment integration all need to come from a single unit. It combines dual SIM cellular failover, 802.3af/at PoE PSE output on both LAN ports, 2.4 GHz Wi-Fi, and RS485 serial in a metal enclosure rated from -40 to +70°C. It mounts on a DIN rail or wall and runs from 9 to 48 V DC.

The built-in PoE PSE changes the economics of remote installations. Rather than running a separate PoE switch or injector alongside the router, the UR32 provides up to 30 W per LAN port directly to connected PoE devices. That removes one component from the panel, simplifies cabling, and reduces failure points on CCTV towers, traffic monitoring columns, utility kiosks, and remote substations. The RS485 port adds direct integration with Modbus instruments, energy meters, PLCs, and inverters without a separate protocol converter. Explore the full Milesight 4G router range for alternative configurations.

Key Features

• 4G LTE Cat 4 – 150 Mbps down / 50 Mbps up, with automatic 3G/2G fallback
• Dual Mini SIM (2FF) with automatic failover between carrier networks
• 802.3af/at PoE PSE on both LAN ports – up to 30 W per port, 60 W total. Requires 48 V DC input to activate PoE output
• 802.11b/g/n Wi-Fi 2.4 GHz – AP and client modes, up to 15 simultaneous connections
• RS485 serial port – Modbus RTU/TCP gateway, transparent TCP, UDP, MQTT, and DLMS modes
• 1x digital input + 1x digital output, galvanic isolation, configurable via SMS, MQTT, and Modbus
• MicroSD slot for local data storage and logging
• VPN – OpenVPN, IPsec, WireGuard, ZeroTier, GRE, L2TP, PPTP, DMVPN (spoke)
• Python SDK for edge application and custom automation development
• Operating temperature -40 to +70°C, IP30, DIN rail and wall mount

What the UR32-L0GEU-P-W-485 is Used For

Remote CCTV and Surveillance Towers

A persistent challenge with remote CCTV columns is delivering both cellular backhaul and power to an IP camera without running two separate circuits. The UR32-L0GEU-P-W-485 handles both from a single device. The 4G connection provides video transmission back to the monitoring head-end while the PoE port powers the camera directly. On solar or battery-backed sites, the router operates from 9 to 48 V DC, and PoE output activates when a 48 V supply is connected. Standard 802.3af fixed cameras, PTZ cameras, and access control readers all work on the PoE ports.

Industrial RS485 Equipment and Modbus Integration

The RS485 port with Modbus RTU-to-TCP gateway makes the UR32 a direct interface for meters, PLCs, inverters, and environmental sensors on an industrial RS485 bus. An engineer can read Modbus RTU registers from a connected instrument and forward the data over 4G to a SCADA platform, cloud historian, or IoT service without a separate protocol converter. Supported output modes include MQTT, TCP client/server, UDP, and HTTP. This covers applications from energy sub-metering and power quality monitoring to building management and agricultural telemetry.

Utility Telemetry and Remote Substations

Water pumping stations, electrical switchgear enclosures, and remote telemetry units typically combine serial instruments with a need for secure remote access and alarm notification. The UR32 covers both. IPsec or WireGuard VPN on cellular routers provides a secure tunnel back to the operations centre. The digital input monitors door contacts, float switches, or pressure alarms, and triggers SMS or MQTT alerts when a state change occurs. Dual SIM ensures the connection survives a single operator outage.

Construction Site and Temporary Site Networks

On construction sites with temporary cabins or welfare units, the UR32 provides cellular WAN and distributes it over Wi-Fi to laptops, tablets, and IP phones. Dual SIM allows two carrier SIMs to be installed, keeping the site connected if one network degrades. The DIN rail form factor fits inside a standard temporary distribution board. When the site moves on, the router moves with it.

Retail, Kiosk, and Payment Terminal Connectivity

Payment kiosks, self-service terminals, and vending machines often require an always-on cellular connection with a fixed IP for secure inbound VPN access and remote management. The UR32’s dual SIM failover, combined with a fixed IP SIM and WireGuard or OpenVPN tunnel, delivers the stable, addressable connection these deployments require. RS485 covers older serial peripherals such as receipt printers, coin validators, and POS card readers.

Frequently Asked Questions

Can the UR32 PoE ports power my IP cameras directly?

Yes. Both LAN ports on the UR32-L0GEU-P-W-485 include 802.3af/at PoE PSE output, delivering up to 30 W per port. The router must be supplied with 48 V DC for PoE output to activate. A 12 V or 24 V supply runs the router only and will not power connected cameras. Standard 802.3af cameras (15.4 W class), 802.3at PoE+ devices (up to 30 W), access control readers, and wireless access points all work directly on the PoE ports.

What is the difference between this model and other UR32 variants?

The UR32-L0GEU-P-W-485 combines PoE PSE output, Wi-Fi, and RS485 serial in a single unit. Other variants in the range offer different combinations: some include GPS, some omit Wi-Fi or PoE, and standard serial variants use RS232. The comparison table below shows the full UR32 feature matrix so you can select the right configuration for your application.

What SIM card do I need for the UR32?

The UR32 takes a Mini SIM (2FF format) in both SIM slots. For CCTV, VPN tunnelling, and remote access applications, a fixed IP SIM card is strongly recommended. Standard SIM cards sit behind carrier-grade NAT, which blocks inbound connections. A fixed IP SIM assigns a routable public address directly to the router, enabling inbound VPN connections, direct device access, and SCADA polling. See IoT SIM cards for the full range including roaming and dynamic IP options.

Does the UR32 support Modbus over the RS485 port?

Yes. The RS485 port supports Modbus RTU natively and includes a Modbus RTU-to-TCP gateway function. Register data from connected serial instruments is bridged over TCP to a SCADA system, cloud platform, or BMS without any additional hardware. The serial port also supports transparent TCP client/server, UDP server, MQTT client, and DLMS client modes, covering most industrial telemetry and metering use cases.

Can I manage multiple UR32 routers remotely?

Yes. Milesight DeviceHub and the Milesight Development Platform provide centralised configuration, mass firmware updates, cellular diagnostics, and event alerting across fleets of deployed units. SNMP v1/v2c/v3, TR-069, and HTTP(S) API are available for integration with third-party NMS platforms. The Python SDK allows custom applications to run on the router itself, enabling edge logic without a cloud dependency.

What VPN protocols does the UR32 support?

The UR32 supports OpenVPN (client and server), IPsec (client and server), WireGuard, ZeroTier, GRE, L2TP, PPTP, and DMVPN spoke mode. For site-to-site connectivity and secure remote access over cellular, WireGuard and IPsec are the most common choices. See our VPN on cellular routers guide for a protocol comparison and configuration guidance.

UR32 Variant Comparison

The UR32 range is available in several hardware configurations. The table below shows the key feature differences. This page covers the UR32-L0GEU-P-W-485, the EU-band variant with PoE PSE, Wi-Fi, and RS485 serial.

Need GPS or a different serial type? Call our UK-based technical team on 0300 124 6181 and we will advise on the right configuration.

Related Products and Further Reading

Browse the full Milesight 4G router range for alternative UR32 configurations including GPS and RS232 variants. For cellular connectivity, a fixed IP SIM card is recommended for any deployment requiring inbound VPN access or direct remote polling. See IoT SIM cards for roaming and dynamic IP options. For remote fleet management and custom application development, see the Milesight Development Platform. For guidance on VPN configuration over cellular connections, see VPN on cellular routers. UK-based technical support is available on 0300 124 6181.