MGate MB3660 Series Quick Installation Guide

Overview

The MGate MB3660 (MB3660-8 and MB3660-16) series gateways are 8 and 16-port redundant Modbus gateways that convert between the Modbus TCP and Modbus RTU/ASCII protocols. The gateways feature built-in dual AC or DC power inputs for power redundancy and dual Ethernet ports (with different IPs) for network redundancy.

These gateways provide serial-to-Ethernet communication, as well as serial (Master)-to-serial (Slave) communication. They can be accessed by up to 256 TCP master/client devices or connected to 128 TCP slave/server devices.

Each serial port can be individually configured for Modbus RTU or Modbus ASCII operation and for different baudrates, enabling integration of various network types with Modbus TCP through a single Modbus gateway.

Package Checklist

Before installing the MGate MB3660 series gateway, verify that the package contains the following items:

• 1 MGate MB3660-8 or MB3660-16 gateway
• 1 RJ45-to-DB9 female serial cable for console setting
• 2 L-shaped brackets for wall mounting
• 2 AC power cords (for AC models)
• Quick installation guide
• Warranty card

Optional Accessories

• Mini DB9F-to-TB: DB9 female to terminal block connector
• CBL-RJ45M9-150: RJ45 to DB9 male serial cable, 150 cm
• CBL-RJ45F9-150: RJ45 to DB9 female serial cable, 150 cm
• CBL-F9M9-20: RJ45 to DB9 female serial cable, 150 cm
• CBL-RJ45SF9-150: RJ45 to DB9 female serial shielded cable, 150 cm
• WK-45-01: Wall-mounting kit, 2 L-shaped plates, 6 screws, 45 x 57 x 2.5 mm
• PWC-C13AU-3B-183: Power cord with Australian (AU) plug, 183 cm
• PWC-C13CN-3B-183: Power cord with three-prong China (CN) plug, 183 cm
• PWC-C13EU-3B-183: Power cord with Continental Europe (EU) plug, 183 cm
• PWC-C13JP-3B-183: Power cord with Japan (JP) plug, 7 A/125 V, 183 cm
• PWC-C13UK-3B-183: Power cord with United Kingdom (UK) plug, 183 cm
• PWC-C13US-3B-183: Power cord with United States (US) plug, 183 cm
• CBL-PJTB-10: Non-locking barrel plug to bare-wire cable

Notify your sales representative if any of the above items are missing or damaged.

Hardware Introduction

The MGate MB3660-8 features 8 DB9/RJ45 ports for serial data transmission, while the MGate MB3660-16 has 16 DB9/RJ45 ports. The MGate MB3660I series gateways provide 2 kV serial port isolation protection.

Diagram Description: The diagram shows the physical dimensions of the MGate MB3660 series gateway with measurements in millimeters (mm) and inches (in). It also displays front and rear views of the gateway, highlighting serial ports and Ethernet ports.

AC-DB9 Models

Diagrams illustrate the front panel layout of the MGate MB3660-8-2AC and MGate MB3660-16-2AC models, showing power inputs (AC 100-240V), console port, LAN ports, and serial ports.

DC-DB9 Models

Diagrams illustrate the front panel layout of the MGate MB3660-8-2DC and MGate MB3660-16-2DC models, showing DC power inputs (DC 10-68V), console port, LAN ports, and serial ports.

AC-DB9-I Models

Diagrams illustrate the front panel layout of the MGate MB3660I-8-2AC and MGate MB3660I-16-2AC models, showing dual AC power inputs (100-240V), console port, LAN ports, and serial ports.

AC-RJ45 Models

Diagrams illustrate the front panel layout of the MGate MB3660-8-J-2AC and MGate MB3660-16-J-2AC models, showing dual AC power inputs (100-240V), console port, LAN ports, and serial ports.

Reset Button and LED Indicators

Reset Button

Press and hold the Reset button continuously for 5 seconds to load factory defaults. Use a pointed object, such as a straightened paper clip, to press the button. Release the button when the Ready LED stops blinking.

LED Indicators

Hardware Installation Procedure

1. After unpacking the unit, use an Ethernet cable to connect the unit to the network.
2. Connect your device to the desired port on the unit.
3. Place or mount the unit. The unit may be placed on a horizontal surface such as a desktop, or mounted on the wall.
4. Connect the power supply to the unit.

Wall or Cabinet Mounting

Two metal plates are provided for mounting the unit on a wall or inside a cabinet. Attach the plates to the unit's rear panel with screws. With the plates attached, use screws to mount the unit on a wall.

Diagram Description: The diagram illustrates recommended screw dimensions for wall mounting: head diameter should be 5.0 to 7.0 mm, shaft diameter should be 3 to 4 mm, and the length of the screws should be more than 10.5 mm.

Termination Resistor and Adjustable Pull High/Low Resistors

In critical environments, termination resistors may be needed to prevent serial signal reflection. Correctly setting pull high/low resistors is crucial to avoid corrupting the electrical signal. The MGate MB3660 uses DIP switches to set these resistor values for each serial port. To access the DIP switches on the PCB's back, remove the cover by unscrewing it. The sequence from right to left corresponds to ports 1 through 16.

To add a 120 Ω termination resistor, set switch 3 on the port's assigned DIP switch to ON. Set switch 3 to OFF (default) to disable the termination resistor.

To set the pull high/low resistors to 150 kΩ, set switches 1 and 2 on the port's assigned DIP switch to OFF (this is the default setting).

To set the pull high/low resistors to 1 kΩ, set switches 1 and 2 on the port's assigned DIP switch to ON.

Pull High/Low Resistors for the RS-485 Port

Software Installation Information

To configure your MGate MB3660, connect the gateway's Ethernet port directly to your computer's Ethernet port and log in via a web browser. The default IP addresses for LAN1 and LAN2 are 192.168.127.254 and 192.168.126.254, respectively.

You can download the User's Manual and Device Search Utility (DSU) from Moxa's website: www.moxa.com. Refer to the User's Manual for detailed DSU instructions.

The MGate MB3660 also supports login via a web browser.

• Default IP address: 192.168.127.254 / 192.168.126.254
• Default account: admin
• Default password: moxa

Pin Assignments

RJ45 (LAN, Console)

DB9 Male (Serial Ports)

RJ45 (Serial Ports)

Relay Output

Diagram Description: The diagram illustrates a relay output with terminals labeled N.O. (Normally Open), Common, and N.C. (Normally Closed).

Specifications