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4 Serial Ports Modbus Ethernet Gateway 9/12~48VDC Input Power CE Certificated

Minimum Order Quantity : 1 Price : Negotiable
Packaging Details : Carton Delivery Time : 7 Working Days
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : 3000 sets per month
Place of Origin: Shenzhen, China Brand Name: 3onedata
Certification: CE, FCC, RoHS Model Number: GW1104

Detail Information

Material: Aluminum Alloy Ethernet Ports: 1
Serial Ports: 4 Input Power: 9/12~48VDC
Installation: Wall/desktop Mounting Operating Temperature: -40~75℃
Waterproof: IP30 Warranty: 3 Years
High Light:

wireless modbus gateway


modbus rtu to modbus tcp gateway

Product Description

4-port RS-232/485/422 + 1-port Ethernet Modbus RTU/ASCII to Modbus TCP Gateway


GW1104 series of Modbus gateway are designed for integrating Modbus RTU/ASCII and Modbus TCP; they can achieve the conversion between Modbus RTU/ASCII and Modbus TCP protocol. This series provide 3 types of products and support 4 RS-232, RS-485/422 or 3IN1 serial port and 1 100M Ethernet copper port. They adopt wall or desktop mounting to meet the requirements of different application scenes.


Modbus gateway supports multiple network protocols, such as Modbus, TCP, IP, UDP, TELNET, ARP, ICMP, HTTP, DNS and DHCP protocols. It possesses complete management function, and supports access control, rapid configuration, online upgrading, etc. RTU Master, RTU Slave, ASCII Master, ASCII Slave and other operating modes are supported; it supports up to 32 TCP Slave requests under Master mode and 16 TCP Master connections under Slave mode. TELNET, WEB and other access modes are also supported. It can provide you with good user experience via friendly design of network management system interface, simple and convenient operation.


DIP switch or RST button can achieve the device restore factory defaults. Hardware adopts fanless, low power consumption, wide temperature and voltage design and has passed rigorous industrial standard tests, which can suit for the industrial scene environment with harsh requirements for EMC. It can be widely used in PLC control and management, Building Automation System, Health Care Automation System, measuring instrument and environmental forces monitoring system.


Features and Benefits

  • Support 10/100Base-T(X) self-adaptive Ethernet interface
  • Support 300bps-115200bps line speed and non-blocking communication
  • Support RTS/CTS, DTR/DSR and XON/XOFF flow control
  • Support response timeout setting of characters
  • Support RTU Master, RTU Slave, ASCII Master, ASCII Slave and other operating modes
  • Support up to 32 TCP Slave requests under Master mode
  • Support up to 16 TCP Master connections under Slave mode
  • Support virtual and real ID mapping to achieve flexible access between Master and Slave devices
  • Support IP address and MAC address filtering, which is easy to achieve accurate access control
  • Support classification of user management to achieve humanized permission management
  • Support monitoring for serial port status and parameters, so the communication status will be clear at a glance
  • Support Windows configuration tool, TELNET, WEB configuration forms and access control
  • File management is convenient for the device rapid configuration and online upgrading




Ethernet Port


Standard: 10Base-T, 100Base-TX


Rate: 10/100M automatic flow control, MDI/MDI-X autotunning

Interface quantity: 1

Interface form: RJ45

Duplex mode: full/half duplex mode self-adaption


Serial Port


Standard: EIA RS-232C, RS-485, RS-422

Protocol: Modbus RTU/ASCII

Quantity of serial port: 4 RS-232, RS-485/422 or 3IN1 serial port

RS-232 signal: DSR, RTS, GND, TXD, RXD, DCD, CTS, DTR

RS-485 signal: D+, D-, GND

RS-422 signal: T+, T-, GND, R+, R-

Baud rate: 300-115200bps

Data bit: 5bit, 6bit, 7bit, 8bit

Parity bit: None, Even, Odd, Space, Mark

Stop bit: 1bit, 2bit

Interface form: RS-232 serial port, adopt RJ45;

                           RS-485/422 serial port with isolation, adopt 5-pin 5.08mm pitch terminal blocks;

                          3IN1 serial port, adopt RJ45

Flow control: RTS/CTS, DTR/DSR, XON/XOFF

Directional control: RS-485 direction adopts Automatic Data Direction Control technology

Pull high/low resistor for RS-485: 4.7 kΩ

Intensity of electromagnetic isolation: RS-485/422 serial port (terminal block), 3KVDC/2KVrms

Operating mode: RTU Master, RTU Slave, ASCII Master and ASCII Slave

Connection quantity: up to 32 TCP Slave requests are supported under Master mode

                                      up to 16 TCP Master connections are supported under Slave mode




WEB configuration management, TELNET configuration, Windows configuration tool




Classification of User Permissions, IP address filtering, MAC address filtering, WEB Console, TELNET Console





Power supply indicator, running indicator, Ethernet port indicator, serial port indicator


Power Requirement




Power supply range: 9~48VDC

Connection mode: 2-pin 5.08mm pitch terminal blocks


GW1104-4DI(RS-485), GW1104-4D(3IN1)-RJ45

Power supply range: 12~48VDC

Connection mode: 3-pin 5.08mm pitch terminal blocks

Power supply protection: nonpolarity connection


Power Consumption


No-load: ≤2.94W@12VDC

Full-load: ≤3.00W@12VDC


Environmental Limit


Operating temperature range: -40~75℃

Storage temperature range: -40~85℃

Relative humidity: 5%~95%(no condensation)





Housing: IP30 protection, metal

Installation: wall or desktop mounting

Dimension (W x H x D): 160mm×28mm×95.5mm (RS-232);

                                           170mm×31.5mm×110mm (RS-485/422, 3IN1)

Weight: ≤590g


Industrial Standard


IEC 61000-4-2 (ESD, Electro-static Discharge), Level 4

Air discharge: ±15kV

Contact discharge: ±8kV


IEC 61000-4-4 (EFT/B, Electrical Fast Transient/Burst), Level 3 (except RS-232)

Power supply: ±2kV

Signal: ±1kV


IEC 61000-4-5 (Surge), Level 3 (except RS-232)

Power supply: common mode ±2kV, differential mode ±1kV

Signal: common mode ±2kV, differential mode ±1kV


Shock: IEC 60068-2-27

Free fall: IEC 60068-2-32

Vibration: IEC 60068-2-6








3 years


4 Serial Ports Modbus Ethernet Gateway 9/12~48VDC Input Power CE Certificated 0


4 Serial Ports Modbus Ethernet Gateway 9/12~48VDC Input Power CE Certificated 1


Ordering Information


Available Models 100M Copper Port RS-232 Port RS-485/422 Port RS-232/485/422 Port  Power Supply Range
GW1104-4D(RS-232) 1 4 - -


GW1104-4DI(RS-485) 1 - 4 - 12~48VDC
GW1104-4D(3IN1)-RJ45 1 - - 4


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