• es 701 ethernet 4 port rs232
  • ES 701 RS 232 Pinout
  • ES 701 back
  • ES 701 case pcb dimensions 1
  • ES 701 case pcb dimensions 2
  • ES 701 full back
  • ES 701 full front
es 701 ethernet 4 port rs232
  • 4 Port RS-232 Ethernet to Serial Device Server
  • 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
  • IP-30 rated steel enclosure
  • Data rate from 110 to 1,000,000 baud (1 MegaBaud)
  • Install Virtual Com ports, communicate over TCP/IP or use the Software APIs for Visual Basic, C# and more
  • ES-701-datasheet (0.90 MB)
Volume Purchase? Request a Quote

Request a Quote


Ethernet to Serial device server providing access to four RS232 serial port. Data transfer rates up to 1,000,000 baud rates (1 MegaBaud), coupled with 1Mbit/s line drivers deliver uncompromising performance. Baud rates can be standard values such as 9,600, 115,200, 230,000, 921,600 or user definable non standard values.

Our ES range provides simple instant networked serial ports. 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. Serial Port Tunnelling (individually configurable) allows serial cable replacement over any distance, no software required. You can access the device via TCP/IP sockets from any networked device like an Android tablet, PC or phone. On Windows OS TCP/IP sockets are handled by the Winsock API, this will differ on other OSs.

Customer Feedback

Product Videos

Operating Systems

Tech Spec

Serial Port
ConnectorDB9 Connector - 9 Pin Male
Tx FIFO Size2048
Rx FIFO Size2048
Operating DistanceEIA - RS232 Standard
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 ModesPoint to Point
Power Input5 - 30V DC input, reverse polarity protected
Power Over EthernetNo - this product does not have PoE capability
Power Supply 1 DescriptionGlobal Power Supply - PW-800
Power Supply 2 Description
Mounting Accessories 1 DescriptionWall Mounting kit for 4&8 ports - MK-059
Mounting Accessories 2 DescriptionSnap In DIN Clip kit for 4&8 ports - MK-070
PCB Layers4
Operating Temperature Range0 °C to +60 °C / 32 °F to +140 °F
Device Dims with ears96.3x101x25
Device Dims without ears91.6x77x25
Power Consumption1.35W Typical
Product Weight0.678 kg, 23.92 ounces
Product Dimensions215x132x34 mm, 8.5x5.2x1.3 inches
Packaged Weight0.959 kg, 33.83 ounces
Packaged Dimensions300x135x80 mm, 11.8x5.3x3.1 inches
GTIN (barcode)837324009965
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