NP304T-4D(RS-232) 4-port RS-232 to Ethernet Converter

NP304T-4D(RS-232) 4-port RS-232 to Ethernet Converter

Model : NP304T-4D(RS-232)
NP304T-4D(RS-232) is an high performance, industrial grade serial to Ethernet server, it can satisfy some kinds of customer requirements in consumption, temperature, volume and handle ability. It provides 4 port RS232 (RS-232 connector: RJ45) and 1 port 10/100Base-Tx Ethernet, can focus manage disperse serial device, master through network, easy, convenience. In application, can configure, upgrade through WEB.
Moreover, NP304T-4D(RS-232) provide strong function configuration tools based in Windows platform, it can guide user configure the device step by step, all configurations are coming true by WEB or Telnet, support cross-gateway and cross-router, user can can flexible configure IP address, server and client mode, data bag size etc. NP304T-4D(RS-232) adopts EMC protection design, can work in rugged environment.


  • Support 10/100M Ethernet
  • Support 4 Port RS-232
  • Support WEB and Telnet configuration
  • Support TCP, UDP, ARP, ICMP, DHCP and DNS protocol
  • Support TCP Server, TCP Client, TCP Auto, UDP and Real COM driver working mode
  • Support UDP multicast and UDP subnet mode
  • Support heartbeat time and time over disconnect function
  • Support cross-gateway and cross-router communication
  • Support virtual serial COM port access and Network interruption automatic recovery
  • Provide Windows configuration tools for easy to use, easy to bath install.
  • Industrial grade design, IP30 protection grade
  • No fan, low consumption design
  • Working temperature: -40~85℃
  • Specification

    Ethernet port

  • Standard: 10Base-T, 100Base-TX
  • Protocol: Support TCP, UDP, APR, ICMP and DHCP
  • Signal: Rx+, Rx-, Tx+, Tx-
  • Speed: 10/100Mbps
  • Working: Full-duplex and half duplex
  • Working mode: Support TCP Server and Client
  • Transfer distance: 100m
  • Connector: RJ45
  • RS-232 port

  • RS-232 port number: 4
  • RS-232 signal: DCD, RXD, TXD, DTR, GND, DSR, RTS, CTS
  • Parity bit: None, Even, Odd, Space, Mark
  • Data bit: 5bit, 6bit, 7bit, 8bit
  • Stop bit: 1bit, 1.5bit, 2bit
  • Band rate: 300bps~115200bps
  • Loading: point to point
  • Transfer distance: no more than 15m
  • Connector: RJ45
  • Protection: class 4 static
  • LED Indicator

  • Working statue indicator: RUN
  • Power (PWR)
  • Ethernet port connection statue (Link)
  • RS232 port transmit data indicator: TX1~TX4
  • RS232 port receive data indicator: RX1~RX4
  • Power supply

  • Input voltage: 12VDC(9~48VDC)
  • No-load consumption:1.05W@12VDC
  • Full-load consumption: 1.16W@12VDC
  • Environment limits

  • Working temperature: -40~85℃
  • Storage temperature: -40~85℃
  • Relative humidity: 5%~95%(non-condensing)
  • Mechanical

  • Shell: IP30 protection, metal shell
  • Installation: Wall mounting
  • Weight: 460g
  • Size (L×W×H): 160mm×95.5mm×28mm
  • Standard

  • EMI: EN 55022 Class A, FCC Part 15 Subpart B Class A
  • EMS: EN 55024,
  • EN 61000-4-2 (ESD) Level 3,
  • EN 61000-4-3 (RS) Level 3,
  • EN 61000-4-4 (EFT) Level 4,
  • EN 61000-4-5 (Surge) Level 3,
  • EN 61000-4-6 (CS) Level 3,
  • EN 61000-4-8,
  • EN 61000-4-11
  • Shock: IEC 60068-2-27
  • Free fall: IEC 60068-2-32
  • Vibration: IEC 60068-2-6
  • Warranty & Certificates

  • Warranty time: 3 years
  • Certificates
  • CE, FCC, RoHS, UL508(pending)
  • NP304T-4D(RS-232):
  • 4-port RS-232 to Ethernet(10/100M) Converter, wall mounting, 9~48VDC