Saturn Pyro Sdn Bhd
Johor Bahru Office
44 & 44A, Jalan Palma Rafis 1,
Taman Dato Chellam,
81800 Ulu Tiram,
Johor, Malaysia.

Shah Alam Office
K03-03-12, Tower 3,
UOA Business Park,
No 1, Jalan
Pengaturcara U1/51A,
Section U1, Kawasan
Perindustrian Temasya,
40150 Shah Alam,
Selangor, Malaysia.
Penang Office
Penthouse 1-21-1,
Suntech @ Penang Cybercity
Lintang Mayang Pasir 3,
11950 Bayan Baru,
Penang, Malaysia.

Bangalore Office
Saturnpyro Solutions Pvt. Ltd.

SFS-B-38, 1st Floor, 7th B Main Road,
Yelahanka New Town, Bangalore 560 064.
+91 829 192 0602
+601 7488 7001
India Office
Saturn Pyro India

3, Gr Floor, Eishita,
Shiv Vallabh Cross Road,
Ashokvan, Dahisar (E.),
Mumbai 400068.
+91 22284 84682
+91 98191 56654

3WIRE RS2WLAN - IoT Gateway

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3WIRE RS2WLAN - IoT Gateway 3WIRE Serial Device Server Gateway


3Wire RS2WLAN is an Industrial Grade WiFi/LAN IoT Gateway which connects your Serial and Ethernet devices, such as PLCs, meters and sensors to an IoT platform.

Your SCADA and BMS software will also be able to access the Serial and Ethernet devices from anywhere over WiFi or LAN.

RS2WLAN is able to poll the required data from your devices and send it as MQTT or HTTP Post over the connected WiFi or LAN. You can configure the connected devices thru the serial port, configuring and defining the required data and interval.

RS2WLAN can also operate as Modbus TCP Master, Modbus TCP Slave in Paired Mode or Bridge Mode with the data connection thru direct IP or Virtual COM to any SCADA & BMS system.


  • Links Serial and Ethernet devices to an IEEE 802.11b/g network; simultaneous access over Ethernet & WIFI
  • Optical isolation of 1500V on RS485 / RS422 data lines; 2kV surge protection on Ethernet Port
  • Supports baud rate of 1200bps ~ 115200bps, 5 ~ 9 bits and parity can be “None”, “Odd”, “Even”, “Mark” & “Space”
  • Serial port interface for RS232 / 485 / 422; terminal block for RS485 & RS422 and DB9 for RS232
  • Supports 10/100 Mbps Ethernet
  • Operates in STA Mode to connect to wireless router or AP Mode to connect to WIFI devices (including mobile phone)
  • Power / Link / Active LED indicator
  • Secure data access with WEP, WPA, WPA2
  • Fast roaming for quick automatic switching between access points
  • Upto 256 slaves connected on RS485 / 422 bus
  • Multi-mode operation; TCP Server, TCP Client, UDP Mode, UDP Multicast
  • Modbus TCP Gateway function (converts Modbus RTU to Modbus TCP)
  • Supports 30 TCP clients at TCP Server and 7 destination IP as TCP Client
  • Heartbeat & Keep Alive function ensures a reliable connection
  • Virtual Port operation using 3Wire ComPort Emulator software
  • Automatic discovery and configuration using provided 3Wire Device Management software or Web Browser configuration
  • Wide voltage 9VDC ~48VDC with dual voltage input; Screw Terminal or DC-Jack
  • ​Plug-in screw terminal wiring; accepts AWG12 ~AWG30 wires

General Specs
Interface RS485/422: Terminal; RS232: DB9
Power Supply 5.5mm Plug & 2 Way Plugable Terminal Block
Dimensions 94mm (L) x 65mm (W) x 25mm (H)

Ethernet 10M / 100M, 2kV Surge Protection
WiFi 802.11b/g
Serial RS232 / 485 / 422 x 1: RXD, TXD, GND, CTS, RTS

Serial Parameters
Baud Rate 1200 ~ 115200bp
Data Bits 5 bits ~ 9 bits
Parity None, Odd, Even, Mark, Space 

Configuration 3Wire Device Management Software & WEB Browser
Net Communication Direct TCP/IP, Virtual Serial Port
Mode TCP Server, TCP Client, UDP, UDP Multicast

Power Requirement
9 ~ 48V DC. 80mA@12V : 40mA@24V : 20mA@48V

Operation Temperature -40°C ~ 85°C 
Storage Temperature -45°C ~ 125°C
Humidity 5 ~ 95% RH

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