NetX Ethernet to Serial

Protocol converter


  • Interconnection of serial RS-232/422/485 and Ethernet networks
  • Transparent conversion of serial protocols in to UDP or TCP/IP packets
  • Modbus/TCP/UDP - RTU/ASCII protocol
  • Serial and IP parameters setup through web interface
  • LED indications
  • Galvanic isolation of Ethernet line
  • Optional galvanic isolation of power supply and power over Ethernet (PoE)
  • 35mm DIN rail mounting


NetX Ethernet converter enables interconnection of serial RS-232/422/485 line and Ethernet network with transparent conversion of serial protocols in to UDP or TCP/IP packets. NetX provides conversion of physical and electrical interfaces, way of medium access and speeds between two communication networks. NetX acts as independent network device with own Ethernet address and adjustable network parameters: IP address, subnet mask and default gateway. Adjusting of network parameters is provided over local computer network in which are placed NetX converter and PC for adjusting.


NetX Ethernet converter is suitable for applications in industrial communications and process automation, alarm systems and telemetry. It is used for:

  • interconnection of distributed I/O modules and PLCs, in measure and control fields, in to computer network
  • surveillance of optical nodes in cable distributed systems
  • interconnection of VHF/UHF radio and LAN networks


Serial communication
InterfaceRS-232DTE, TxD, RxD, DTR, DSR, DCD, RTS, CTS RS-422/485, 120R termination for Tx and Rx, RTS/ON control
ConnectionDB9 male
Speed50, 110, 134, 150, 200, 300, 600, 1200, 2400, 3600, 4800, 9600, 19200, 38400, 57600, 115200, 230400
Format5, 6, 7, 8 bits; parity: none, odd, even, mark, space; 1, 2 stop bits
Protocoltransparent (virtual serial port) Serial Bridge
Modbus TCP/UDP master/slave – RTU/ASCII PPP server
Flow controlsoftware (XON/XOFF), hardware (CTS/RTS), none
Ethernet communication
InterfaceEthernet, IEEE 802.3
Physical layer10/100 Base-T
Speed10/100 Mbps (auto-sensing)
Modehalf-duplex or full-duplex (auto-sensing)
ProtocolUDP, TCP/IP
IP parametersIP address, subnet mask, default gateway
Number of connections1
LED indicatorsPWR, TxD, RxD, DTR, LAN, LINK
Power supply8 – 32VDC, 9 – 36VDC isolated, 18 – 72VDC isolated, PoE
Power consumption5Wmax
ConnectionPluggable screw clamp, 1.5mm2
Overvoltage protectiontranzorb on RS-422/485 line
Working temperature-25 up to 70°C
Mounting35mm DIN rail


NetX Ethernet to Serial10242NetX Ethernet with RS-232/422/485 communication connection and power supply in range 8-32VDC€190
NetX Ethernet to Serial - ISO10243 NetX Ethernet with RS-232/422/485 communication connection and power supply in range 9-36VDC€210
NetX Ethernet to Serial - ISO - HV10244 NetX Ethernet with RS-232/422/485 communication connection and power supply in range 18-72VDC€210
NetX Ethernet to Serial - ISO - PoE10245NetX Ethernet with RS-232/422/485 communication connection and isolated power over Ethernet€210

*Minimum functionality kit needs to include the device and UTP crossover cable. Please note that all accessories are sold separately.

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SKU# 21749

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