• ed 504 not available do not build
ed 504 not available do not build
  • Integrated 3-in-1 solution saves time, space and money
  • Complete Ethernet to Serial Device Server
  • Factory floor process control and automation
  • Install Virtual Com ports in Windows, tunnel over ethernet between 2 devices, communicate over TCP/IP or use the Software APIs for Visual Basic, C# and more
  • -30°C to +80°C Temperature range
  • Integrated DIN rail mount
  • ED-504-datasheet (2.03 MB)


Integrated 3-in-1 device: Remote DIO, Serial port and Ethernet Switch. Saves time, space and money.

Less wiring, removes points of failure for a more efficient reliable system.

4 digital input or output channels, software selectable RS232/422/485 Serial port and 2 port Ethernet switch suitable for daisy chaining.

Simple to connect to systems of all ages, up and running in minutes. Get connected with our user friendly software, create your own GUI with provided APIs or view instantly via your web browser without the need to install.

Maximise and monitor overall operating efficiency, preserve your capital with a low cost investment in machine management.

Typical applications include monitoring and control of DNC machines, AC and DC motors, Fans, relay drivers, pumps, Voltage Regulators and Battery Chargers, Lighting systems, Air Conditioning, Heaters and Solenoids..

Customer Feedback

Product Videos

Tech Spec

IO Channels
IO ProtocolsModbus TCP or DCON ASCII (over TCP or Virtual COM port)
Description4 Digital Inputs/Outputs
Digital Inputs4
Digital Outputs4
Analog Inputs0
Analog Outputs0
WatchdogWhen device comms is lost, outputs can be set to predetermined state
Power On ValuesOutputs can be set to predetermined values on power on
Safe ValuesWhen Input triggered, outputs can be automatically set to predetermined value
Digital IO
Input Logic Level 00.0V to +1.0V
Input Logic Level 1+2.0V to +30V
Input LatchesTriggered by user programmable positive or negative edges, stays true until acknowledged
Input CounterUser progammable- counts positive or negative transitions up to 200Hz
Digital Output TypeOpen drain transistor, protected MosFET. Short circuit protection up to 36V. Over temperature shutdown -175°C typical 150°C min
Maximum Output Load Voltage30 VDC
Maximum Output Current Sink0.85A per channel
Serial Port
Serial GatewayTrue serial port: RS232/422/485
Number of Ports2: 1 Uplink and 1 LAN, individually configurable
Network Port TypeRJ45 Jack 10/100 MHz Autosensing, Cross Over Autosensing (MDIX)
Network ProtocolsICMP, IP, TCP, DHCP, HTTP
Protection1500V Magnetic Isolation between ports and network
Power Input5V - 30V DC Redundant DC Dual Power Inputs, reverse polarity protected
Power Supply 1 DescriptionGlobal Power Supply - PW-600
Power Supply 2 DescriptionPower supply PW-650
Max Input35 Volts
Operating Temperature Range-30 °C to +80 °C / -22 °F to +176 °F
Industrial StandardYes
Storage Temperature-40 °C to +85 °C / -40 °F to +185 °F
Galvanic IsolationNo
Power ConsumptionInput +5V to +30V DC [email protected] 2.5W max
Product Weight0.121 kg, 4.27 ounces
Product Dimensions128x102x23 mm, 5.0x4.0x0.9 inches
Packaged Weight0.217 kg, 7.65 ounces
Packaged Dimensions160x135x49 mm, 6.3x5.3x1.9 inches
GTIN (barcode)837324003383
Operating System Compatibility
Operating Systems
  • Microsoft Windows 10
  • Suitable for any device with a Web Browser
  • Microsoft Windows 8 32 bit & 64 bit Editions
  • Windows Server 2012
  • Raspberry Pi
  • Android
  • Windows Server 2008 R2
  • Microsoft Windows 7 32 bit & 64 bit Editions
  • iOS
  • Windows Server 2008 32 bit & 64 bit Editions
  • Windows Vista 32 bit & 64 bit Editions
  • Mac OS X
  • Windows XP 32 bit & 64 bit Editions
  • Microsoft Windows 2000
  • Linux


Microsoft Signed Drivers

Microsoft Hardware