SIG-5440 ezTCP 4-Port Digital Input I/O Gateway

  • Sale
  • Regular price $142.86
  • Will not ship until

The ezTCP SIG-5440 is a remote I/O gateway equipped with 4 digital input ports and an Ethernet interface. The device can be used to monitor the state of equipment/sensors from remote data centers or HMI devices via Modbus TCP protocol. The device can also be monitored by using any Modbus TCP software/app.

We provide free software and a smartphone app, called ModMap, which lets you manage multiple devices easily and conveniently.

Each individual digital input also has a counter function. This makes the SIG-5440 not only suitable for state monitoring but also counting applications.

Each device supports up to four TCP connections simultaneously, enabling to monitor equipment/sensors from different HMI/software/apps at the same time.


  • 4 digital input ports: Wet contact or Dry contact input
  • Supports counter function on digital input ports
  • Supports Modbus/TCP
  • Supports multiple TCP connections (Max. 4 channels)
  • Supports the Internet Switch
  • Free Modbus/TCP program
  • Industrial temperature range (-40℃ ~ +85℃)


  • Digital Input
    • Input Type: Dry Contact / Wet Contact / NPN / PNP
    • Input Voltage Range: 2.5V ~ 25V
    • Number of Ports: 4
  • Network Physical Interface
    • Network Interface: 10Base-T/100Base-TX Ethernet(RJ45)
    • Ethernet Speed: Auto Sense
    • 1:1 or Cross-over Cable Auto Sense
  • Software Functions
    • Protocols: IPv4/IPv6 Dual Stack
      ICMP, DHCP, mDNS, Modbus/TCP
  • Indicators
  • LEDs: MTX, MRX, Di0, Di1, Di2, Di3
  • Management
    • spFinder: Configuration and Monitoring Tool
    • Access Security: Password
  • Dimensions
    • Size: 94mm x 57mm x 23mm (3.7 x 2.2 x 0.9 inches)
    • Weight: About 62g (2.2 ounces)
  • Operating Environment
    • Input Voltage: DC 5±0.5V
    • Protection: Reverse Voltage Protection / Surge Protection
    • Current Consumption: Typically, 150mA
    • Operating Temperature: -40℃ ~ +85℃
    • Storage Temperature: -40℃ ~ +85℃
  • Certifications
    • KC Registration(KN 32, KN 35)
    • CE EMC 2014/30/EU, RoHS 2011/65/EU
    • FCC FCC Part 15 Subpart B, Class A
Package includes:

1X SIG-5440 ezTCP 4-Port Digital Input I/O Gateway

The delivery of this item is stock to 2 weeks. Please contact us prior to placing your order for a specific delivery time. 

Documentation & Resources:

SIG-5440 ezTCP 4-Port Digital Input I/O Gateway Product Web Page