UR35 Industrial 4G Router

UR35 Description

Core Purpose

The Milesight UR35 is an industrial cellular router designed to provide stable, long-term network connectivity for remote equipment and IoT systems. It is built to keep devices online in environments where wired networks are unreliable or unavailable. The router supports both cellular and Ethernet connections and automatically maintains connectivity when links change or fail.

Connectivity

The UR35 connects to the internet using cellular networks or wired Ethernet and can switch between links automatically to maintain uptime. Dual SIM support allows the router to change carriers when signal quality drops or a network becomes unavailable. This ensures continuous communication for critical systems without manual intervention.

Network Management

The device includes built-in routing, firewall, and traffic control features to manage data securely across connected devices. It supports secure VPN connections, allowing remote sites to safely communicate with central systems. Standard management tools such as web interface, CLI, SMS control, and centralized cloud management help simplify remote administration.

Integration and I/O

The UR35 supports serial communication and digital input/output, enabling it to connect directly to industrial controllers, meters, and sensors. This allows field equipment to transmit data over cellular networks without additional gateways. Modbus support enables straightforward integration with common industrial devices.

Power and Environmental Suitability

Designed for industrial use, the UR35 operates across a wide voltage range and functions reliably in extreme temperatures. Its metal enclosure and DIN-rail mounting support installation in control cabinets, roadside cabinets, and industrial facilities. Built-in watchdog functions help the device recover automatically from unexpected faults.

Industry Applications

UR35 Industry Applications

Industrial Automation

The UR35 provides reliable network access for PLCs, HMIs, and remote control systems. Its serial and Ethernet interfaces allow industrial equipment to communicate with central platforms over cellular networks.

Energy and Utilities

The router supports remote monitoring of power, water, and environmental infrastructure. Automatic failover and dual SIM operation help maintain connectivity for unattended installations.

Transportation

UR35 is suitable for traffic systems, roadside cabinets, and transport infrastructure that require constant connectivity. Its wide temperature tolerance supports outdoor and roadside deployments.

Retail and Payment Systems

The device enables secure cellular connectivity for payment terminals, kiosks, and vending systems. VPN support helps protect sensitive transaction data.

Remote Monitoring and Telemetry

UR35 allows sensors and meters in remote locations to send data back to central systems. This supports applications such as environmental monitoring, telemetry, and unmanned stations.

Specifications

UR35 Specifications

Hardware System

CPU	ARM Cortex-A7, 528 MHz
Memory	128 MB DDR3 RAM and 128 MB Flash
Extendable Storage	1 × Micro SD Slot

Cellular Interface

Network	4G LTE (CAT 4) / WCDMA / GSM
Antenna Connector	2 × 50 Ω SMA Connectors (Center PIN: SMA Female)
SIM Slots	2 (Mini SIM-2FF)

Ethernet Interface

Numbers	5 × 10/100 Mbps
Property	1 × WAN + 4 × LAN
Mode	Full or half duplex (Auto-Sensing)
PoE (Optional)	4 × 802.3 af/at PoE PSE on LAN Ports

Wi-Fi Interface (Optional)

Antenna Connector	1 × 50 Ω SMA Connector (Center PIN: RP-SMA Female)
Standards	IEEE 802.11 b/g/n, 2.4GHz
Tx Power	802.11b: 16 dBm ±1.5 dBm (11 Mbps) 802.11g: 14 dBm ±1.5 dBm (54 Mbps) 802.11n: 13 dBm ±1.5 dBm (65 Mbps, HT20/40 MCS7)
Modes	AP or Client mode
Security	WPA/WPA2 authentication, WEP/TKIP/AES encryption

GPS (Optional)

Antenna Connector	1 × 50 Ω SMA Connector (Center PIN: SMA Female)
Protocol	NMEA0183, PMTK

Serial Interface

Numbers	1 × RS232 + 1 × RS485 (2 × RS485 Hardware Optional)
Connector	3.5mm Terminal Block
Baud Rate	300bps to 230400bps

DI/DO

Numbers	1 × DI (dry contact) + 1 × DO (wet contact), Galvanic Isolation
Connector	3.5mm Terminal Block
Maximum V/A	0.3A@30VDC (DO)

Others

Reset Button	1 × RESET
LED Indicators	1 × POWER, 1 × SYSTEM, 1 × SIM, 1 × Wi-Fi, 1 × VPN, 3 × Signal strength
Built-in	Watchdog, Timer

Software

Network Protocols	IPv4/IPv6, PPP, PPPoE, SNMP v1/v2c/v3, TCP, UDP, DHCP, RIPv1/v2, OSPF, DDNS, VRRP, HTTP, HTTPS, DNS, ARP, QOS, SNTP, Telnet, VLAN, SSH, MQTT, MQTTS, TR069, etc.
VPN	DMVPN, IPsec, OpenVPN, PPTP, L2TP, GRE, WireGuard, MilesightVPN
Security	Access Control, DMZ, Port Mapping, MAC Binding, SPI Firewalls, DoS & DDoS Protection, Filtering (IP & Domain), IP Passthrough
Management	Web, CLI, SMS, On-demand dial up, SNMP v1/v2/v3, DeviceHub
AAA	Radius, Tacacs+, LDAP, Local Authentication
Multilevel Authority	Multiple Levels of User Authority
Reliability	VRRP, WAN Failover, Dual SIM Backup
Serial Port	Transparent (TCP Client/Server, UDP), Modbus Server/Client, Modbus Gateway (Modbus RTU to Modbus TCP)

Power Supply and Consumption

Power Connector	2-pin 5.08 mm Terminal Block
Input Voltage	9–48 VDC, with Surge-Protection and Reverse Polarity Protection
Power Consumption	Typical 3.9 W, Max 4.6 W (In Non-PoE mode)

Physical Characteristics

Ingress Protection	IP30
Housing & Weight	Metal, 485 g
Dimension	135 × 103 × 45 mm (5.31 × 4.06 × 1.77 in)
Installation	Desktop, Wall or DIN Rail Mounting

Environmental

Operating Temperature	-40°C to +70°C (-40℉ to +158℉)
Reduced Cellular Performance	Above 60°C
Storage Temperature	-40°C to +85°C (-40℉ to +185℉)
Ethernet Isolation	1.5 kV RMS
Relative Humidity	0% to 95% (non-condensing) at 25°C / 77℉

Approvals

Regulatory	CE, FCC, RCM, JATE, Telec
Environmental	RoHS
EMC	EN 55032, EN 55035
EMS	IEC 61000-4-2 Level 3 IEC 61000-4-3 Level 2 IEC 61000-4-4 Level 3 IEC 61000-4-5 Level 3 IEC 61000-4-6 Level 3 IEC 61000-4-8 Level 4 IEC 61000-4-11 Level 3
Radio Frequency	EN 301 489-1/17/19/52, EN 301 511, EN 301 908-1/2/13, EN 303 413, EN 300 328
Safety	EN 62368-1