Features and Benefits 

  • Retrieve Modbus/DNP3 serial data through an 802.11 network
  • Supports serial tunneling communications
  • Slave mode supports 16 TCP masters and up to 31 or 62 serial slaves at the same time
  • Embedded Modbus/DNP3 traffic monitor
  • Secure data access with WEP/WPA/WPA2
  • 2 kV serial port isolation
  • microSD card for configuration backup
  • -40 to 75°C wide operating temperature models available
  • Supports 2 digital inputs and 2 digital outputs


The MGate W5108/W5208 series gateways are an ideal choice for connecting Modbus serial devices to a wireless LAN, or DNP3 serial to DNP3 IP through a wireless LAN. With IEEE 802.11a/b/g/n support, you can use fewer cables in difficult wiring environments, and for secure data transmission, the MGate W5108/W5208 series gateways support WEP/WPA/WPA2. The gateways’ rugged design makes them suitable for industrial applications, including oil & gas, power, process automation, and factory automation.

Modbus Traffic Monitor

The MGate W5108/W5208 series gateways support Modbus Protocol Traffic Monitor for easy troubleshooting, especially during the installation stage. Communication issues could be caused by incorrect software parameters, such as slave ID and register address, or incorrect hardware parameters such as baudrate and interface. With Modbus Protocol Traffic Monitor support, you can check the captured data and easily identify the root cause.

Variety Maintenance Functions

The MGate W5108/W5208 series gateways support a web console and Telnet console for remote maintenance. Each gateway also supports encryption commutation functions such as HTTPS and SSH to prevent security issues. In addition, log functions are provided in the firmware to record connection events and Modbus for maintenance events. Users can review log data remotely through the web console.

• Ethernet Interface
ProtocolsModbus TCP, DNP3, TCP Client/Server modes supported
Number of Ports1
Speed10/100 Mbps, Auto MDI/MDIX
Connector8-pin RJ45
Magnetic Isolation Protection1.5 kV (built-in)
• Serial Interface
ProtocolsModbus RTU/ASCII Master/Slave, DNP3
Number of PortsMGate W5108: 1
MGate W5208: 2
Serial StandardsRS-232/422/485, software selectable
ConnectorsDB9 male
Pull High/Low Resistor for RS-4851 kΩ, 150 kΩ
Terminator for RS-485120 Ω
Isolation2 kV (built-in)
• Serial Communication Parameters
Data Bits7, 8
Stop Bits1, 2
ParityNone, Even, Odd, Space, Mark
Flow ControlRTS/CTS, XON/XOFF, RTS Toggle
Baudrate50 bps to 921.6 kbps
• Serial Signals
RS-422Tx+, Tx-, Rx+, Rx-, GND
RS-485-4wTx+, Tx-, Rx+, Rx-, GND
RS-485-2wData+, Data-, GND
• Wireless Network
Standards Compliance802.11a/b/g/n
Network ModesInfrastructure, Ad-Hoc
Transmission Rate802.11a/g: 65, 54, 48, 36, 24, 18, 12, 9, 6 Mbps, auto rate
802.11b: 11, 5.5, 2, 1 Mbps, auto rate
802.11n 2.4 GHz: HT20, MCS 0-7
802.11n 5 GHz: HT20 & HT40 MCS 0-7
Transmission DistanceUp to 100 meters (in open areas)
Antenna ConnectorReverse SMA
TX Transmit Power (per antenna port)2.4 GHz
• 802.11b:
1 to 11 Mbps, Typ. 16 (±1.5 dBm)
• 802.11g:
6 to 36 Mbps, Typ.16 (±1.5 dBm)
48 Mbps, Typ. 15 (±1.5 dBm)
54 Mbps, Typ. 14 (±1.5 dBm)
• 802.11n (20 MHz):
MCS0-3: Typ. 16 dBm (± 1.5 dBm)
RX Sensitivity2.4 GHz
• 802.11b:
-92 dBm @ 1 Mbps,
-88 dBm @ 2 Mbps,
-87 dBm @ 5.5 Mbps,
-84 dBm @ 11 Mbps
• 802.11g:
-91 dBm @ 6 Mbps,
-90 dBm @ 9 Mbps,
-88 dBm @ 12 Mbps,
-86 dBm @ 18 Mbps,
-80 dBm @ 24 Mbps,
-80 dBm @ 36
Spread Spectrum and Modulation (Typical)OFDM (54, 48, 36, 24, 18, 12, 9, 6 Mbps)
CCK (11 Mbps, 5.5 Mbps)
DQPSK (2 Mbps)
DBPSK (1 Mbps)
Operating Channels (Central frequency)• US:
2.412 to 2.462 GHz (11 channels)
5.180 to 5.240 (4 channels)
5.260 to 5.320 (4 channels)
5.500 to 5.700 GHz (8 channels, excludes 5.600 to 5.640 GHz)
5.745 to 5.825 GHz (5 channels)
• EU:
• Digital Input/Output
Number of DIOs2 DIs and 2 DOs
Connectors6-pin terminal blocks
Dry Contact LevelLogic “0”: Short to GND
Logic “1”: Open
Wet Contact LevelLogic “0”: +3 VDC max.
Logic “1”: +10 to 30 V (COM to DI)
Digital Output (Sink Type)Driver Current: Max. 200 mA per channel
On-state voltage: 24 VDC nominal, open collector to 30 V
Storage Card Slot1 microSD (SDHC) card slot supports up to 32 GB
• Software
Configuration OptionsWeb console, Telnet console
UtilityDevice Search Utility (DSU) for Windows 95, 98, ME, NT, 2000, Windows XP, Server 2003, Vista, Server 2008 (x86/x64), Windows Server 2008 R2, Windows 7/8/8.1 (x86/x64), Windows Server 2012 (x64), Windows 2012 R2
Network ProtocolsTCP/IP, UDP, HTTP, SMTP, NTP, DNS, DHCP Client, SNMP (v1, v2, v3), Private MIB, ARP, Telnet
• Security
AuthenticationWEP encryption ( 64 or 128 bit), WPA / WPA2-Personal and Enterprise (IEEE 802.1X/RADIUS, TKIP and AES)
• Physical Characteristics
HousingMetal, IP30
WeightMGate W5108: 589 g (1.30 lb)
MGate W5208: 738 g (1.63 lb)
DimensionsMGate W5108: 45.8 x 105 x 134 mm (1.8 x 4.13 x 5.28 in)
MGate W5208: 59.6 x 101.7 x 134 mm (2.35 x 4 x 5.28 in)
• Environmental Limits
Operating TemperatureStandard Models: 0 to 60°C (32 to 140°F)
Wide Temp. Models: -40 to 75°C (-40 to 167°F)
Storage Temperature-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity5 to 95% (non-condensing)
VibrationIEC 60068-2-6, IEC 60068-2-64
ShockIEC 60068-2-27
DropIEC 60068-2-32
• Power Requirements
Input Voltage9 to 60 VDC
Input Current495 mA @ 9 VDC; 202 mA @ 24 VDC; 114 mA @ 48 VDC; 99 mA @ 60 VDC
Power ConnectorTerminal block
• Standards and Certifications
SafetyUL 508, EN 60950-1
Hazardous LocationUL/cUL, Class 1 Division 2, ATEX Zone 2, IECEx
EMCEN 55032/24
EMICISPR 32, FCC Part 15B Class B
EMSIEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m
IEC 61000-4-4 EFT: Power: 4 kV; Signal: 2 kV
IEC 61000-4-5 Surge: Power: 2 kV
IEC 61000-4-6 CS: 150 kHz to 80 MHz: 10 V/m
IEC 61000-4-8 PFMF
RadioEN 300328, EN 301893, TELECOM
CE (ETSI EN 301 893, ETSI EN 300 328), ARIB RCR STD-33, ARIB STD-66
• Reliability
Alarm FunctionsSMS, relay, e-mail
Alert ToolsBuilt-in buzzer
Automatic Reboot TriggerBuilt-in WDT (watchdog timer)
• MTBF (mean time between failures)
TimeMGate W5108: 668,518 hrs
MGate W5208: 556,271 hrs
StandardTelcordia SR332

Available Models

 Model No.Description
MGate W51081-port Modbus/DNP3 gateway with 802.11 a/b/g/n WLAN (supports US/EU/Japan/China bands respectively), 0 to 60°C operating temperature
MGate W5108-T1-port Modbus/DNP3 gateway with 802.11 a/b/g/n WLAN (supports US/EU/Japan/China bands respectively), -40 to 75°C operating temperature
MGate W52082-port Modbus gateway/DNP3 with 802.11 a/b/g/n WLAN (supports US/EU/Japan/China bands respectively), 0 to 60°C operating temperature
MGate W5208-T2-port Modbus gateway/DNP3 with 802.11 a/b/g/n WLAN (supports US/EU/Japan/China bands respectively), -40 to 75°C operating temperature

Optional Accessories


 Model No.Description
Mini DB9F-to-TBDB9 Female to Terminal Block connector

Wireless AP Mounting Kit

 Model No.Description
WK-51-01Wall-mounting kit, 51mm wide

DIN Rail Power Supplies

 Model No.Description
DR-452445W/2A DIN-rail 24 VDC power supply with universal 85 to 264 VAC or 120-370 VDC input, -10 to 50°C operating temperature
DR-75-2475W/3.2A DIN-rail 24 VDC power supply with universal 85 to 264 VAC or 120-370 VDC input, -10 to 60°C operating temperature
DR-120-24120W/5A DIN-rail 24 VDC power supply with universal 88 to 132 VAC or 176 to 264 VAC input by switch, or 248-370 VDC , -10 to 60°C operating temperature

Wireless LAN Antennas

 Model No.Description
ANT-WSB-ANF-092.4 GHz,omni-directional antenna, 9 dBi, N-type (female)
ANT-WSB-PNF-122.4GHz, Directional/Panel antenna, 12dBi, N-type (female) connector
ANT-WSB-PNF-182.4 GHz, panel antenna, 18 dBi, N-type (female)
ANT-WDB-ANM-05022.4/5 GHz, dual-band omni-directional antenna, 5/2 dBi, N-type (male)
ANT-WDB-ANF-06092.4/5 GHz, dual-band omni-directional antenna, 6/9 dBi, N-type (female)
ANT-WDB-PNF-15182.4/5 GHz, dual-band panel antenna, 15/18 dBi, N-type (female)
ANT-WDB-ANF-0407Dual-band omni-directional antenna: 4 dB at 2.4 GHz and 7 dB at 5 GHz
ANT-WSB-AHRM-05-1.5m2.4 GHz, omni-directional/dipole antenna, 5 dBi
ANT-WSB5-ANF-125 GHz, omni-directional antenna, 12 dBi, N-type (female)
ANT-WSB5-PNF-18Directional panel antenna: 18 dBi at 5 GHz
ANT-WDB-ANM-04072.4/5 GHz, dual-band omni-directional antenna, 4/7 dBi, N-type (male)

Optimizing PLC Network Performance and Management

To increase productivity and reduce operating costs, many manufacturers and plant operators have deployed industrial Ethernet to converge remotely isolated fieldbus systems for centralized control and monitoring. In addition to systems interoperability, integration of fieldbus segments and industrial Ethernet networks will require the optimization of PLC network performance and manageability. This paper will discuss how three facets of PLC network optimization can ensure high network availability, simplify network monitoring and configuration, and maximize network flexibility.

How to Architect Your Systems to Get the Most Out of Your Modbus Devices

The migration of all industrial applications to Ethernet is unquestioned. But, before network engineers can inch closer toward all-systems-go, they need to overcome several challenges. The most pressing one is to ensure that there is no breakdown in communication between serial devices and SCADA hosts. It is no secret that plenty of solutions are available on the market. The immediate question is which solution fits your network’s requirements the best.

In this white paper, we will look at four challenges that arise when linking up Modbus-supported devices to SCADA systems. We will also provide solutions for different scenarios to address your concerns.