2 Ports Serial to Wi-Fi Converter

DTU、Serial Gateway、、、、、、

Y202-W Dual-Port Serial-to-WiFi DTU

Model: Y202-W

Key Features

  • Two independent RS485/RS232 ports mapped to dual-band 2.4/5.8 GHz Wi-Fi

  • Supports STA/AP/Router, NAT, DHCP, port forwarding, and VPN pass-through

  • Built-in Modbus gateway, JSON uploader, register trigger, and local data logging

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Overview

Dual-port DTU that bridges two RS232/RS485 channels to 2.4 GHz WiFi or 10/100M Ethernet with transparent TCP/UDP/HTTP/MQTT sockets, Modbus gateway, and JSON telemetry in a compact DIN-ready chassis.

Key Features

  • Two independent RS485/RS232 ports mapped to dual-band 2.4/5.8 GHz Wi-Fi

  • Supports STA/AP/Router, NAT, DHCP, port forwarding, and VPN pass-through

  • Built-in Modbus gateway, JSON uploader, register trigger, and local data logging

  • 9–36 VDC redundant inputs with reverse polarity, TVS/ESD, and dual watchdogs

Specifications

Power SupplyVoltageDC 5~36V (terminal or DC jack)
Typical Current55 mA @ 12V (WiFi idle)
ProtectionReverse polarity, surge clamp, dual watchdog
Serial InterfacesPorts2
ConfigurationsRS232/RS485 selectable per port
Baud Rate2,400~460,800 bps
Data Bits7/8
Stop Bits1/2
ParityNONE / EVEN / ODD
PackagingLength 64–1024 bytes, gap 0–300 ms
WirelessStandardIEEE 802.11 b/g/n @ 2.4 GHz
ModesAP, STA, AP+STA
SecurityWPA/WPA2/WPA3-PSK
Tx Power20.5 dBm max
EthernetInterface10/100Base-T RJ45, auto MDI/MDIX
Ip ModesStatic (default 192.168.10.8) / DHCP
ServicesHTTP config server, TCP/UDP sockets, HTTP Client, MQTT Client
EnvironmentalOperating Temperature-40°C ~ +85°C
Humidity5% ~ 95% RH
Dimensions84 × 70 × 25 mm
EnclosureMetal chassis, UL94 V-0 liners

Documentation & Support