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Westermo MRD-355 Dual SIM Industrial 3G Router

Westermo MRD-355 Dual SIM Industrial 3G Router
Westermo MRD-355 Dual SIM Industrial 3G Router
Westermo MRD-355 Dual SIM Industrial 3G Router
Westermo MRD-355 Dual SIM Industrial 3G Router
Westermo MRD-355 Dual SIM Industrial 3G Router

  • Access SCADA systems, HMI, and PLCs remotely
  • Wireless mobile broadband GPRS/EDGE/3G/HSPA connection
  • 2 x 10 Mbit/s or 100 Mbit/s Ethernet ports (RJ-45 connector)
  • 1 x RS-232 Serial port (9-pin D-sub female, 300 bit/s – 115.2 kbit/s)
  • 2 x SIM slots (3 volts SIM supported)
  • 12 to 48 VDC Power input range (Wide Range 10 to 60 VDC)
  • Compact casing with DIN-rail mounting 
  • -40 to +70 °C operating temperature range

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Datasheet User Manual
  • Operating Temperature (-40 to 70°C)
  • Relative Humidity (0 to 90% relative humidity non-condensing)
  • IP protection (IP40)
  • Oil & Gas
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Tags: Industrial Routers , Cellular LTE Routers , Wireless & Cellular Routers , Cellular Gateways & Routers , Industrial Data Communications , Industrial Cellular Solutions , Wireless Routers , Oil & Gas Products , Routers , Westermo MRD-355

Remote access removes boundaries, eliminates the need for time-consuming site visits, and provides a network infrastructure suitable for today’s “always-on” society. The MRD-355 industrial mobile broadband GPRS / EDGE / 3G router uses the Internet to cost-effectively interconnect systems, allowing HMI, PLCs, sensors, etc, to communicate with each other.

A compact design bundled with all interfaces and LEDs in the front makes the unit extremely well-suited for industrial applications. With isolation between the PSU and the Ethernet and serial ports, the MRD-355 protects against issues caused by ground loops. The dual SIM support in the device ensures that site connectivity is not dependent on a single carrier; should something happen, the unit just switches to the other SIM.

Devices connected to the Internet require countermeasures against cyber threats. The MRD-355 offers protection against transmissions from malicious eavesdroppers via encrypted communication tunnels (VPN) and features a simple, yet powerful, packet inspection firewall. The MRD-355 with its built-in serial port offers a simple modem replacement solution with the benefit of not having to reprogram or change any other component.


You can also find the MRD-315, Merlin-3103-T2G-PFO-DCi0936, and Merlin-4407-T4-S2-LV models in the Wireless Routers.


Easy World Automation offers the easiest way to buy the Westermo MRD-355 Dual SIM Industrial 3G Router in the Middle East (UAE (Dubai), KSA (Al Khobar, Riyadh), and Oman) at the lowest price through online inquiring. Our sales experts will contact you to fulfill all your industrial automation needs.

3g modem : Interface
SIM card slot Yes : 2 x SIM slots (3 volts SIM supported)
Ethernet Ports Yes : 2 x 10 Mbit/s or 100 Mbit/s Ethernet ports (RJ-45 connector)
USB No
Digital Input and Output No
Serial port Yes : 1 x RS-232 Serial port (9-pin D-sub female, 300 bit/s – 115.2 kbit/s)
Alert Output No
Band Options GSM, GPRS, EDGE: 850/900/1800/1900; 3G UMTS, HSDPA, HSUPA: 800/850/900/AWS 1700/1900/2100
Cellular Standards GSM, GPRS, EDGE, 3G UMTS, HSDPA, HSUPA
Cellular Antenna Connectors 3 x SMA antenna connectors
WLAN Standards No
WLAN Antenna Connector No
GPS Antenna Connector Yes
3g modem : Radio specifications
Radio Connection type -
Maximum data transfer speed of 2G GSM: 14.4 kbit/s Downlink and Uplink; GPRS: 85.6 kbit/s Downlink and Uplink; EDGE: 236.8 kbit/s Downlink and Uplink
Maximum data transfer speed of 3G 3G UMTS: 384 kbit/s Downlink and Uplink; HSDPA: 21.0 Mbit/s Downlink; HSUPA: 5.7 Mbit/s Uplink
Maximum data transfer speed of 4G No
WiFi Radio Frequency No
3g modem : Software Specifications
Routing Redundancy No
VPN IPSec, OpenVPN, PPTP, L2TP, GRE
Firewall ACL, NAT, Port Forwarding
Time Management No
Management Web interface (HTTP and HTTPS), Command Line Interface (CLI) via SSHv2 and TELNET,SN MPv1/v2c/v3,SM S Control, Flexible alarm/event handling system, Syslog (log files and remote syslog server), SNTP (NTP client), DHCP client, DHCP server, DDNS (Dynamic DNS update client)
3g modem : General
LED Indicators STS, NET, NET 1, NET 2
MTBF -
Operating mode Router, 3G Modem, GSM/GPRS modem
3g modem : Standards and protocols
Protocols HTTP, HTTPS, SSHv2, TELNET, SNMPv1/v2c/v3, SNTP (NTP client), DHCP client, DHCP server, DDNS, DNP3
3g modem : Features and capabilities
Send and receive SMS Yes
3g modem : Security
Security and Encryption No
Authentication None, PAP, CHAP
3g modem : Power Requirements
Power Connector -
Power Consumption (Output Adapter) No network registration: 78 mA, 1.8 W; GPRS Idle: 86 mA, 2.064 W; GPRS Average send/receive: 98 mA, 2.352 W; GPRSS Max send/receive: 140 mA, 3.36 W; UMTS/LTE Idle: 86 mA, 2.064 W; UMTS/LTE Average send/receive: 98 mA, 2.352 W; UMTS/LTE Max send/receive: 110 mA, 2.64 W
Input Voltage 12 - 48 VDC (Wide Range 10 - 60 VDC)
POE Support No
Input Current -
Reverse Polarity Protection Supported
3g modem : Buttons
Power button No
Reset Yes
3g modem : Physical Characteristics
Installation DIN-rail mounting
Dimensions 53 x 103 x 103 mm (2.08 x 4.05 x 4.05 in)
Housing -
Weight 0.4Kg
Operating Temperature –40 to +70ºC (–40 to +158ºF)
Storage Humidity 0-95% relative humidity
Storage Temperature –40 to +85ºC (–40 to +185ºF)
Type of Use Industrial environment
Standards and Certifications Ingress protection: IP40; EMC: EN 55024, EN 55024 A1, EN 55024 A2, Electromagnetic compatibility – Immunity IT equipment, EN 55022, EN 55022 A1, Information technology equipment, Radio disturbance characteristics. Limits and methods of measurement; Safety: EC/EN 60950-1, IT equipment;

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