• es 346 ethernet 4 port rs422 485
  • ES 346 RS 422 485 Pinout
  • ES 346 back
  • ES 346 case pcb dimensions 1
  • ES 346 case pcb dimensions 2
  • ES 346 front
  • ES 346 front and back
es 346 ethernet 4 port rs422 485
  • 4 Port RS-422/485
  • Ethernet to Serial Device Server in steel IP-30 enclosure
  • Recommended for demanding flow control and latency applications such as CNC/DNC machine communications
  • Serial Port Tunnelling allows serial cable replacement over any distance, no software required
  • Install Virtual Com ports, communicate over TCP/IP or use the Software APIs for Visual Basic, C# and more
  • Power supply included (power input 5-30V DC)
  • ES-346-datasheet (0.51 MB)
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Ethernet to Serial device server providing access to four RS422/485 serial ports. Data transfer rates up to 1,000,000 baud rates, coupled with 1Mbit/s line drivers deliver uncompromising performance. Our ES range provides simple instant networked serial ports. RS485 - 1 twisted pair - half duplex configuration with autogating provides trouble free data transmission due to automatic control of data direction. A web interface allows secure configuration and control of the serial ports over a local network or the internet using any browser. For Windows our in-house designed (32 bit and 64 bit) driver gives you local COM ports, retaining existing software applications and allowing you to connect across your network to remote devices just as if they were attached locally. You can access the device via TCP/IP sockets from any networked device like an Android tablet, PC or phone. Serial Port Tunnelling (individually configurable) allows serial cable replacement over any distance, no software required. On Windows OS TCP/IP sockets are handled by the Winsock API, this will differ on other OSs.

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Tech Spec

Serial Port
ConnectorDB9 Connector - 9 Pin Male
Tx FIFO Size2048
Rx FIFO Size2048
Operating DistanceRS422/485 Standard (4000 ft : 1200 metres)
CableNo Cable; Integrated Connector
Serial Port Settings
Max Baud Rate1,000,000 (1 MegaBaud)
Data Bits5,6,7 or 8
ParityOdd, Even, None, Mark or Space
Stop Bits1, 1.5 or 2
Tx/Rx ModesFull Duplex, Half Duplex Autogating
Power Input5 - 30V DC input, reverse polarity protected
Power Over EthernetNo - this product does not have PoE capability
Power Supply 1 DescriptionGlobal Power Supply - AU, EU, UK, US - PW-500
Power Supply 2 Description
Mounting Accessories 1 DescriptionSnap In DIN Clip lit for 4&8 ports - MK-070
Mounting Accessories 2 DescriptionWall Mounting Kit for 4&8 ports - MK-059
PCB Layers4
Operating Temperature Range0 °C to +60 °C / 32 °F to +140 °F
Device Dims with ears96.3x101x25
Device Dims without ears
Power Consumption1.45W Typical
Product Weight0.700 kg, 24.69 ounces
Product Dimensions215x123x34 mm, 8.5x4.8x1.3 inches
Packaged Weight0.997 kg, 35.17 ounces
Packaged Dimensions300x135x80 mm, 11.8x5.3x3.1 inches
GTIN (barcode)837324002676
Operating System Compatibility
Operating Systems
  • Microsoft Windows 10
  • Microsoft Windows 7 32 bit & 64 bit Editions
  • Windows Server 2008 32 bit & 64 bit Editions
  • Windows Vista 32 bit & 64 bit Editions
  • Windows XP 32 bit & 64 bit Editions
  • Microsoft Windows 2000
EthernetEthernet Interface takes advantage of a companies pre-existing infrastructure, allowing you to connect to your Brainboxes device over the local network, or from across the world.


Microsoft Signed Drivers

Microsoft Hardware