4 Ports Serial to Ethernet Converter

DTU、Serial Gateway、、、、、

Y204-R Quad-Port Serial-to-Ethernet DTU

Model: Y204-R

Key Features

  • Four isolated RS485/RS232 ports bridge to dual 10/100M Ethernet ports

  • Supports TCP server/client, UDP, HTTP, MQTT, and Modbus gateway rules simultaneously

  • Per-port baud 1.2–921.6 kbps with packet trigger, edge alarm, and register mapping

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Overview

Quad-port Ethernet DTU that maps four RS232/RS485 channels to 10/100M RJ45 uplink with dual socket contexts, Modbus gateway, and web/AT provisioning for dense cabinet retrofits.

Key Features

  • Four isolated RS485/RS232 ports bridge to dual 10/100M Ethernet ports

  • Supports TCP server/client, UDP, HTTP, MQTT, and Modbus gateway rules simultaneously

  • Per-port baud 1.2–921.6 kbps with packet trigger, edge alarm, and register mapping

  • 9–36 VDC redundant inputs, reverse polarity guard, 3 kV surge, and dual watchdogs

Specifications

Power SupplyVoltageDC 9~36V (terminal) + 12V barrel optional
Typical Current220 mA @ 12V (four sockets active)
ProtectionReverse polarity, EFT/ESD suppression
Serial InterfacesPorts4
ConfigurationsRS232/RS485 selectable per port
Baud Rate1,200~460,800 bps
Data Bits7/8
Stop Bits1/2
ParityNONE / EVEN / ODD
PackagingLength 64–1024 bytes, gap 1–300 ms
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-35°C ~ +75°C
Humidity5% ~ 95% RH
ProtectionIEC 61000-4-2 Level 4 ESD/EFT
Dimensions150 × 110 × 35 mm
EnclosureMetal chassis, DIN-rail mounting

Documentation & Support