Elfin-EW4X

  • Product Code: Elfin-EW4X
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Product Overview

  • The Elfin-EW4X serial server provides a product for converting TTL/RS232/RS485 protocols and Wi-Fi protocols, offering a solution for the channel from product serial ports to wireless data transmission. This product integrates a TCP/IP protocol stack, memory management, high-speed serial ports, TTL, RS232, RS485, and other rich hardware interfaces. Based on the mbed operating system, the product includes web pages and IOTService software, enabling convenient local or remote configuration, monitoring, and debugging.
  • The Elfin-EW4X serial server utilizes a highly integrated hardware and software platform, optimized for industrial applications, smart grids, and personal health and medical applications. Simply adding an Elfin-EW4XB product can meet the needs of device data monitoring and transmission.

Overview of Characteristic

  • Support for the 802.11b/g/n and BLE 5.0 wireless standard
  • Support for Bluetooth mode SmartBLELink distribution network
  • Support TCP / UDP / MQTT / WebSocket / HTTP and other network communication protocols
  • Support TTL/RS232/RS485 to Wi-Fi Conversion, Serial Speed Up to 230400 bps
  • Support STA/AP/AP+STA Mode
  • Support SmartLink V8 Smart Config (Provide APP)
  • Support Easy Configuration Through Web Interface or PC IOTService Tool
  • Support Security Protocol Such As TLS/AES/DES3
  • Support Webpage OTA Wirelss Upgrade 
  • Support Internal PCB Antenna and External SMA antenna
  • Wide power supply is 5~36V power supply
  • Dimensions: 68.5 x 35 x 17.8mm
  • FCC/CE/SRRC/IC Certificated

Wireless Standard BLE 5.0
Frequency Range 2402GHz-2480GHz
Processor 160MHz
Basic Frequency 448KB
Flash 8MB
SDRAM 448KB
Operating System mbed
Network Protocol IP，TCP，UDP，DHCP，DNS，HTTP Server/Client，ARP， BOOTP， AutoIP， ICMP，Web socket， Telnet， uPNP， NTP， Modbus TCP
Security Protocol TLS v1.2 AES 128Bit DES3
Network Mode STA/AP/STA+AP
Transmit Power 802.11b: +17dBm±1.5dBm (Max.@11Mbps) 802.11g: +15dBm±1.5dBm (Max.@54Mbps) 802.11n: +14dBm±1.5dBm (Max.@HT20,MCS7)
Receive Sensitivity 802.11b: -89dBm 802.11g: -76dBm 802.11n: -73dBm
Wi-Fi Security WEP64/WEP128/TKIP/ AES
Port Number EW40B：1 RS232 EW41B：1 RS485 EW42B：1 TTL
Data Bits 7，8
Stop Bit 1，2
Check Bit None，Even，Odd
Baud Rate TTL：1200bps~230400bps
Flow Control No Flow control Software Xon/ Xoff flow control
Configuration Http Web Configuration Customization of HTTP Web Pages
Size 68.5 x 35 x 17.8mm
Storage Temp. -45 ~ 105°C， 5 ~ 95% RH
Input Voltage 5～36VDC
Working Current Peak (1ms in 100ms): <350mA Average (STA, networked standby): 40mA Average (STA, 1KB/s): 60mA Average (AP): 70mA
Power <800mW
Wi-Fi Standard 802.11 b/g/n
Work Temp. -40 ~ 85°C
User Guide
IOT_Device_Series_Software_Funtion_20250328 [ Download Times: 56298,  Date Update: 2025-11-06 15:45:30 ]
EW4XB_PW4XB_MW4XB_Wport-W70_Operation Guide(20231010) [ Download Times: 715,  Date Update: 2023-11-28 17:04:27 ]
Elfin-EW4X_User ManualV1.1(20230616) [ Download Times: 445,  Date Update: 2025-12-30 14:14:38 ]
Certificate
Elfin-EW41B_FCC [ Download Times: 189,  Date Update: 2023-11-06 15:50:56 ]