MLS-UR41L

Overview

Milesight UR41L Industrial 4G LTE CAT1 IoT Router
The Milesight UR41L-L0CEU is a compact industrial 4G LTE CAT1 router designed to deliver stable connectivity for IoT and M2M deployments. Built for remote and unattended environments, it uses a single Nano SIM to provide reliable cellular communication across multiple carrier networks.

Its space-saving design integrates essential industrial interfaces, including a 10/100 Mbps LAN port, configurable RS232 or RS485 serial communication, and digital input/output for monitoring and control. A USB 2.0 port extends functionality, while the IP30-rated enclosure ensures durability in demanding installations where both performance and footprint matter.

Description

The UR41L router is engineered for industrial-grade IoT networking where reliability, flexibility, and low power consumption are critical. It combines cellular connectivity with versatile interfaces, enabling seamless integration with sensors, controllers, and legacy equipment. With advanced security protocols, remote management capabilities, and a rugged housing, it is well suited for applications such as smart utilities, remote monitoring, industrial automation, and telemetry systems. Its compact form factor and multiple mounting options make deployment straightforward even in confined spaces.

Features

Connectivity and Interface Options
Designed to bridge modern networks with industrial equipment, the router provides multiple connection paths in a single unit.

• 4G LTE CAT1 cellular connectivity with single Nano SIM support
• 1 x 10/100 Mbps Ethernet LAN port with auto-sensing duplex
• 1 x serial interface supporting RS232 or RS485 (software switchable)
• 1 x digital input and 1 x digital output for control and monitoring
• USB 2.0 Type-C port for power, network access, and debugging

These interfaces enable integration with PLCs, sensors, and other field devices without requiring additional converters.

Industrial Build and Deployment Flexibility
The UR41L is built to operate reliably in harsh environments, maintaining performance across a wide temperature range.

• Industrial-grade ARM Cortex-A7 processor
• IP30-rated metal enclosure for durability
• Operating temperature range from -40 C to +60 C
• Compact dimensions suitable for embedded installations
• Mounting options include DIN rail, wall, or desktop

This design ensures consistent operation in industrial cabinets, outdoor enclosures, and remote installations.

Security and Network Reliability
Security and uptime are core to industrial networking, and the UR41L incorporates multiple layers of protection and redundancy.

• VPN support including IPsec, OpenVPN, GRE, L2TP, PPTP, and DMVPN
• SPI firewall, ACL, DMZ, and DDoS protection
• Centralized authentication via Radius, Tacacs+, LDAP, or local authentication
• Built-in watchdog for automatic system recovery
• Support for IPv4 and IPv6, QoS, and advanced routing protocols

These capabilities help maintain secure and uninterrupted communication across distributed networks.

Remote Management and Maintenance
Managing large-scale deployments is simplified through flexible configuration and monitoring tools.

• DeviceHub support for centralized device management and mass configuration
• Web GUI and CLI for straightforward setup and administration
• SNMP and TR069 support for integration into existing management systems
• Remote firmware upgrades and diagnostics

This reduces operational overhead and enables efficient lifecycle management of deployed devices.

Technical Details
Key hardware and system specifications for the Milesight UR41L (SKU: MLS-UR41L):

• CPU: ARM Cortex-A7, 528 MHz
• Memory: 128 MB DDR3 RAM, 128 MB Flash
• Cellular: 4G LTE CAT1 with SMA antenna connector
• SIM: 1 x Nano SIM (4FF)
• Serial: RS232 or RS485, 300 bps to 230400 bps
• DI/DO: 1 input (dry contact), 1 output (wet contact), 0.3A at 30VDC
• Power input: 5 to 24 VDC terminal block or 5V via USB Type-C
• Power consumption: idle 70 mA at 12V, peak 157 mA at 12V, standby 6.3 mA
• Dimensions: 70 x 55 x 22 mm
• Weight: 103 g

Use Case Applications
The UR41L is suitable for a wide range of industrial and IoT deployments where compact, secure connectivity is required.

• Remote monitoring and telemetry systems
• Smart city and utility infrastructure
• Industrial automation and control networks
• Transportation and logistics tracking
• Energy management and metering

Its combination of compact design, robust connectivity, and advanced management tools makes it a practical choice for scalable IoT networking.

Specifications

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Specifications
Product Code	MLS-UR41L
Item	Model UR41L
Hardware System
CPU	ARM Cortex-A7, 528 MHz
Memory	128 MB DDR3 RAM and 128 MB Flash
Cellular Interface
Network	4G LTE (CAT 1)
Antenna Connector	1 x 50 Ω SMA Connector (Center PIN: SMA Female)
SIM Slot	1(Nano SIM-4FF)
Ethernet Interface
Numbers	1 x 10/100 Mbps LAN Port
Mode	Full or Half Duplex (Auto-Sensing)
GNSS
Antenna Connector	-
Technology	-
Serial Interface
Number	1 x RS232 or 1 x RS485 (Software Switchable)
Connector	3.5mm Terminal Block
Terminal Resistor	1 x 120 Ω Resister Switch (for RS485)
Baud Rate	300bps to 230400bps
DI/DO
Numbers	1 x DI (dry contact) + 1 x DO (wet contact), Galvanic Isolation
Connector	3.5mm Terminal Block
Maximum V/A	0.3A@30VDC (DO)
Others
Reset Button	1 x RESET
USB	1 x USB 2.0 (Type-C) for Power Supply, Network Supply and Debug
LED Indicators	1 x SYSTEM , 1 x SIM
Built-in	Watchdog, Timer
Software
Network Protocols	IPv4/IPv6, PPP, SNMP v1/v2c/v3, TCP, UDP, DHCP, RIPv1/v2, OSPF, DDNS, VRRP, HTTP, HTTPS, DNS, ARP, QOS, SNTP, Telnet, SSH, MQTT, MQTTS, TR069, etc.
VPN	DMVPN, IPsec, OpenVPN, PPTP, L2TP, GRE, MilesightVPN
Security	SPI Firewalls, Access Control (ACL), DMZ, Port Mapping, MAC Binding, DoS&DDoS Protection, Filtering(IP&Domain)
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
Serial Port	Transparent(TCP Client/Server, UDP), Modbus Client/Server, Modbus Gateway (Modbus RTU to Modbus TCP)
Power Supply and Consumption
Power Connector	2-pin 3.5 mm Terminal Block
Power Input	1. 5-24 VDC, with Surge-Protection and Reverse Polarity Protection
	2. 5V/1A by USB Type-C Port
Power Consumption	Idle: 70mA@12V
	Data link: 157mA (peak)@12V
	Standby mode: 6.3 mA@12V
Physical Characteristics
Ingress Protection	IP30
Housing & Color	Metal, Black
Weight	103g
Dimension	70 x 55 x 22 mm (2.76 x 2.17 x 0.87 in) (Antenna Connector Excluded)
Installation	Desktop, Wall Mounting, DIN Rail Mounting
Environmental
Operating Temperature	-40degreesC to +60degreesC (-40degreesF to +140degreesF)
Storage Temperature	-40degreesC to +85degreesC (-40degreesF to +185degreesF)
Ethernet Isolation	1.5 kV RMS
Relative Humidity	0% to 95% (Non-condensing)
Approvals
Regulatory	CE, FCC
Environmental	RoHS