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Westermo Merlin-4609-F2G-T4-S2-DI6-DO2-LV-PFG - Merlin 4609 - Isolated 10-60V DC - 4 Eth - 2 SFP - 2 Serial - 6 DI's - 2 DO's - USB Host - Cat-4 LTE for North America w. GNSS
Westermo

Merlin-4609-F2G-T4-S2-DI6-DO2-LV-PFG

Alternate Item Number: 3460-00002

UPC: 100000000000


Documents & Media
Specification Sheet

Contact for Pricing

Overview

The Westermo Merlin 4609 (SKU: Merlin-4609-F2G-T4-S2-DI6-DO2-LV-PFG) is a rugged industrial cellular router designed for mission-critical applications requiring reliable connectivity in harsh environments. This compact, full-metal unit measures 50 x 170 x 100 mm and weighs 750g, making it ideal for deployment in tight spaces such as substations, transportation systems, or remote monitoring sites. Powered by a 10-60V DC input range (9.6-60V operating voltage), it delivers 7W typical power consumption with 100ms hold-up time for stable operation during voltage fluctuations. The Merlin 4609 features four 10/100 Mbit/s Ethernet ports with RJ45 connectors, two SFP slots for fiber optic integration, and two serial ports configurable as RS-232 or RS-485 for legacy device compatibility. It includes six digital inputs (DI) and two digital outputs (DO) for direct sensor monitoring and equipment control, with support for external expansion modules. Wireless connectivity is provided by a Cat-4 LTE modem optimized for North American networks, complemented by GNSS support (GPS, GLONASS, BeiDou, Galileo) for precise asset tracking. Built-in cybersecurity features include a Trusted Platform Module (TPM) for cryptographic key security, Secure Boot for authenticated firmware, and a suite of tools supporting 802.1X, IPSec encryption, and stateful firewall. The router operates across -40°C to +70°C (-40°F to +158°F) with IP40 ingress protection and 5-95% humidity tolerance. Software features include IPv4/IPv6 routing, DHCP, NAT, VLAN support, SNMPv1/v2c/v3, SSHv2, and industrial protocol gateway capabilities for protocol conversion. Certified for IEC 61850-3 Class 1 (substations) and EN 50121-4 (railway trackside), this router meets stringent industrial and railway standards.
  • 4x 10/100 Mbit/s Ethernet ports with RJ45 connectors
  • 2x SFP slots for flexible fiber optic integration
  • 2x serial ports configurable as RS-232 or RS-485
  • 6 digital inputs (DI) and 2 digital outputs (DO) for sensor/control
  • Cat-4 LTE modem optimized for North American networks with GNSS support
  • Operating voltage: 10-60V DC (9.6-60V range), 7W typical power consumption
  • Full-metal housing (50 x 170 x 100 mm, 750g) with IP40 ingress protection
  • Cybersecurity: TPM, Secure Boot, 802.1X, IPSec, stateful firewall
  • Certified for IEC 61850-3 Class 1 (substations) and EN 50121-4 (railway trackside)
  • Operating temperature: -40°C to +70°C (-40°F to +158°F)

Specifications

Series
Merlin 4609
Voltage Rating
10-60V DC
Package Weight (Imperial)
0.00 lbs
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Frequently Asked Questions

Does the Merlin 4609 support fiber optic connections?

Yes, it includes two SFP slots for flexible fiber optic integration alongside four Ethernet ports.

What serial interfaces are available on the Merlin 4609?

The router provides two serial ports, each configurable for RS-232 or RS-485 communication.

What digital I/O capabilities does the Merlin 4609 have?

It features six digital inputs (DI) and two digital outputs (DO) for direct sensor monitoring and equipment control.

What are the environmental specifications of the Merlin 4609?

The unit operates from -40°C to +70°C (-40°F to +158°F) with IP40 ingress protection and 5-95% humidity tolerance.

Is the Merlin 4609 certified for specific industrial standards?

Yes, it is certified for IEC 61850-3 Class 1 (substations) and EN 50121-4 (railway trackside).

What is the power consumption of the Merlin 4609?

The router has a typical power consumption of 7W and a maximum of 10W.

What is the operating voltage range for the Merlin 4609?

The Merlin 4609 operates on a 10-60V DC input range, with an operating voltage range of 9.6 to 60V DC.

What wireless connectivity does the Merlin 4609 offer?

The router includes a Cat-4 LTE modem optimized for North American networks, with GNSS support for location tracking.

What cybersecurity features are included in the Merlin 4609?

The router features a Trusted Platform Module (TPM), Secure Boot, 802.1X authentication, IPSec encryption, and a stateful firewall.

What GNSS systems does the Merlin 4609 support?

The GNSS support includes GPS, GLONASS, BeiDou, and Galileo satellite systems.

How to Install the Westermo Merlin 4609 Industrial Router

Step-by-step guide to mounting, powering, and connecting the Merlin 4609 industrial router.

Estimated time: 20m

Tools needed:

Phillips screwdriver, Wire strippers, Crimping tool (for cables)

Supplies needed:

Mounting screws (included), Ethernet cables, Power supply (10-60V DC), Antenna cables (if using external antennas)

  1. Mount the router

    Secure the Merlin 4609 to a DIN rail or flat surface using the included mounting screws. Ensure the mounting surface is stable and vibration-resistant for industrial environments.

  2. Connect power

    Connect a 10-60V DC power source to the DC input terminal. Verify polarity and ensure the voltage is within the 9.6-60V operating range. The router supports a hold-up time of 100ms during power fluctuations.

  3. Configure network connections

    Connect Ethernet devices to the four RJ45 ports. For fiber optic connections, insert compatible SFP modules into the two SFP slots. Attach serial devices to the two serial ports, configured as RS-232 or RS-485 via software.

  4. Install SIM cards and antennas

    Insert up to two Mini-SIM (2FF) cards into the rear SIM slots. Attach LTE and GNSS antennas to the SMA-compatible connectors for wireless connectivity. Ensure antennas are positioned for optimal signal reception.

  5. Verify operation

    Power on the router and check the status LEDs for Ethernet, LTE, and power indicators. Access the web interface via HTTPS to configure network settings, security, and routing protocols.

Frequently Asked Questions about Westermo

What certifications and standards do Westermo products comply with?

Westermo products meet rigorous international standards across electromagnetic compatibility (EMC), mechanical protection, functional safety, and regulatory compliance. Key certifications include EN 61000 series for industrial immunity and emissions, EN 50121-4 for railway applications, EN 50155 for on-board rail systems, UL, CE, UKCA, EAC, and C-Tick. Our products are engineered to withstand harsh industrial environments and comply with IP protection standards, mechanical enclosure requirements, and functional safety specifications like EN 61800 and IEC 61508.

What industries and applications are Westermo products used for?

Westermo products are designed for mission-critical industrial applications across multiple demanding sectors, including transportation (railways, roads, tunnels), energy infrastructure, water treatment, and substation automation. Their robust data communication devices are engineered to operate in harsh environments where standard commercial-grade equipment would fail, providing resilient communication infrastructure for control and monitoring systems with extreme temperature tolerance and high reliability.

What are the main product lines offered by Westermo?

Westermo offers a comprehensive range of industrial data communication products across six primary product lines: Ethernet Switches, Extenders, Routers, Modems, Converters, and Accessories. These robust devices are engineered for harsh environments and mission-critical applications in industries like transport, water, and energy, with specific solutions for railways, substations, and remote network access.

What are the key features of Westermo products?

Westermo products feature robust industrial-grade data communication devices engineered for harsh environments, with key characteristics including: high electromagnetic immunity (EN 61000-6-2), industrial emission compliance (EN 61000-6-4), extensive railway and transportation approvals (EN 50121-4, EN 50155), and rigorous manufacturing quality standards. Their devices provide mission-critical communication infrastructure with advanced features like secure remote access, network resilience, and comprehensive cybersecurity protections through their proprietary WeOS operating system.

What communication protocols do Westermo products support?

Westermo products support a wide range of industrial communication protocols, including Ethernet, RS-232, RS-422, RS-485, PROFIBUS DP, M-Bus, and 20 mA current loop. Our industrial converters and communication devices are designed to provide robust connectivity across multiple communication standards, enabling seamless integration in harsh industrial environments.

What environmental ratings do Westermo products have?

Westermo products feature robust environmental ratings across multiple standards, including IP66 protection, NEMA Type 4X, and UL/CSA certifications for harsh industrial environments. Their devices are designed to withstand extreme temperatures from -40°C to 130°C, resist dust, water ingress, and provide protection against external environmental challenges in industrial settings.

What accessories are available for Westermo products?

Westermo offers a comprehensive range of accessories to complement their industrial data communication devices, including optical transceivers, power supplies, backup devices, cables, and antennas. Key accessories include SFP transceivers with transmission ranges from 2 to 120 km, industrial power supplies like PS-30 and PS-100, M12 USB backup devices, and specialized cables such as diagnostic, M12, power, and radio cables in various lengths.

How are Westermo products typically installed?

Westermo products are typically installed using WeConfig, their network configuration management tool that simplifies device setup and maintenance. The installation process involves connecting devices to the network, using WeConfig to automatically discover and configure them, and leveraging project files that store network topology information for easy replacement and reconfiguration. Devices can be mounted on DIN rails in industrial environments and are designed for robust installation in harsh conditions like transportation, energy, and water infrastructure.

What technical support does Westermo offer?

Westermo offers comprehensive technical support through multiple channels. Their engineering team provides expert guidance for selecting, configuring, and installing data communication solutions across industrial markets like transport, water, and energy. Customers can access support via their website (www.westermo.com), and for North American customers, direct support is available through Gross Automation at +1 (262) 252-1600 or [email protected].