UR55 Industrial Cellular 3G/4G LTE Router | Ursalink

UR55 Industrial Cellular Router


UR55 Industrial Cellular Router

Ursalink UR55 is a compact and cost-effective Industrial Cellular Router offering 5 fast Ethernet ports for wired connection and global 2G/3G/4G LTE cellular networks for primary or backup Internet access. Built in serial ports and digital input/output interfaces makes UR55 versatile in various industrial applications.

Check supported LTE frequency band

  • Dual SIM Backup with High-Speed LTE Network
  • Comprehensive Industrial Interfaces: Serial Port, DI/DO
  • Integrated GPS with High Accuracy Positioning
  • Dual-Band Wi-Fi comply with 802.11a/b/g/n/ac
  • Supports Modbus TCP and Modbus RTU Protocols
  • Multiple Encryption Tunnels for Data Transmission Security

Cellular Interfaces
Connectors 2 × 50 Ω SMA (Center PIN: SMA Female)
SIM Slots 2
Wi-Fi Interface (Optional)
Connectors 1 × 50 Ω SMA (Center PIN: SMA Female)
Standards IEEE 802.11a/b/g/n (optional: IEEE 802.11ac)
Tx Power 802.11a: 12 dBm +/-2 dBm (54 Mbps)

802.11b: 16 dBm +/-1.5 dBm (11 Mbps)

802.11g: 15 dBm +/-1.5 dBm (54 Mbps)

802.11n@2.4 GHz: 14 dBm +/-1.5 dBm (HT20 MCS7)

802.11ac@5 GHz: 10 dBm +/-2 dBm (HT80 MCS9)

Rx Sensitivity 802.11b: <= -75 dBm (11 Mbps)

802.11g: <= -68 dBm (54 Mbps)

802.11n@2.4 GHz: <= -67 dBm (HT20 MCS7)

802.11n@2.4 GHz: <= -64 dBm (HT40 MCS7)

802.11ac@5 GHz: <= -64 dBm (HT20 MCS8)

802.11ac@5 GHz: <= -55 dBm (HT40 MCS9)

802.11ac@5 GHz: <= -64 dBm (HT80 MCS9)

Modes Support AP and Client mode, support multiple SSID
Security WPA/WPA2 authentication, WEP/TKIP/AES encryption
Hardware System
CPU 528 MHz, ARM Cortex A7
Memory 128 MB Flash, 128 MB DDR3 RAM
Storage 1 × Micro SD
Ethernet Interface
Port 5 × RJ-45
Property 1 × WAN + 4 × LAN or 2 × WAN + 3 × LAN
Physical Layer 10/100 Base-T (IEEE 802.3)
Data Rate 10/100 Mbps (Auto-Sensing)
Interface Auto MDI/MDIX
Mode Full or half duplex (Auto-Sensing)
Serial Interface
Port 1 × RS232 + 1 × RS485 or 2 × RS232 or 2 × RS485
Connector Terminal Block
Baud Rate 300bps to 230400bps
Connector (4) pin screw down terminal block
Digital 2 × DI + 2 × DO
GPS (Optional)
Connector 1 × 50 Ω SMA (Center PIN: SMA Female)
Sensitivity -167dBm@Tracking, -149dBm@Acquisition, -161dBm@Re-acquisition
Position Accuracy <2.5m CEP
Protocols NMEA 0183, PMTK
Network Protocols PPP, PPPoE, SNMP v1/v2c/v3, TCP, UDP, DHCP, RIPv1/v2, OSPF, DDNS, VRRP, HTTP, HTTPS, DNS, ARP, QOS, SNTP, Telnet, VLAN, SSH, etc.
Access Authentication CHAP/PAP/MS-CHAP/MS-CHAPV2
Firewall ACL/DMZ/Port Mapping/MAC Binding
Management Web, CLI, SMS, On-demand dial up
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 Gateway (Modbus RTU to Modbus TCP)
Power Supply and Consumption
Connector 2-pin with 5.08 mm terminal block
Input Voltage 9-48 VDC
Power Consumption Typical 2.6 W (Max 4.3 W)
Physical Characteristics
Ingress Protection IP30
Housing & Weight Metal
Dimensions 132 x 103.8 x 45 mm (5.20 x 4.09 x 1.77 in)
Mounting Desktop, Wall or DIN Rail Mounting
Reset Button 1 × RESET
LED Indicators 1 × POWER, 1 × WLAN, 1 × STATUS, 1 × VPN, 1 × SIM1, 1 × SIM2, 3 × Signal Strength
Built-in Watchdog, RTC
Certifications RoHS, CE, FCC
EMC IEC 61000-4-2 Level 3

IEC 61000-4-3 Level 3

IEC 61000-4-4 Level 4

IEC 61000-4-5 Level 4

IEC 61000-4-6 Level 3

IEC 61000-4-8 Level 4

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℉

Application Example

The Ursalink UR55 is widely used in various industries, it provides both wired and wireless connectivities for terminal devices to communicate with remote data center. The UR55 also has serial port and digital input/output for industrial applications, it can be used as a Modbus gateway to can effectively integrates serial Modbus devices to IP based management systems via Ethernet and cellular.


Ursalink Industrial Cellular Router Demo on a live website. Login in as an administrator to experience the intuitive Web GUI and explore the powerful features of UR55.

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