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RP-1204 (Industrial IoT Remote I/O / WAN I/O)

Wi-Fi / Ethernet Connected Industrial IoT Device

  • Once the system is powered up, it will auto-create a persistent connection to the server without user intervention.
  • The server can be placed either at the public cloud or LAN.
  • The device is able to work behind a firewall.

Network link with MQTT Broker Server

  • Open Standard protocol and readily available either using paid version or free version of MQTT Broker Server.
  • Messaging format based on JSON format.
  • JSON messaging format is supported by various programming languages and easily integrated into any existing system.

Opto-Isolated Input Port

  • Total 12 Input Port Channel.
  • Separated into 3 Groups with each having their own input common.
  • Bi-directional opt0-isolated allows the use of either common positive or common negative input.
  • Accept input DC 12V ~ 24V

Relay dry contact output

  • Total 4 Relay output channels.
  • With one output common.
  • Each output with 5A Max Contact.
  • The total Max Current for all output is 5A

Auto fetch real-time clock from Internet Time Server

  • Auto connects with the Internet Time Server to fetch the Real-time value (EPOC Time) when the network is connected and the Internet link is available.
  • Manually set time by the server if the internet link is not available.
  • Auto-readjust the time drifts periodically.
  • Append the EPOC time to all the messages.

Easy setup and configuration

  • The system configures with Android Apps.
  • Provide detailed device properties, E.g. model number, version number, etc.
  • Connectivity selection either using Wi-Fi, Ethernet, or USB Link.
  • Upload WPA Enterprise Server private/public key.
  • Server IP / Domain Name Setup.
  • DHCP / Fix IP.
  • Internet Time Server Setting.


  • Water / Dust resistance enclosure.
  • Support wide supply input voltage, 12V DC to 24V DC.
  • All terminal block connector is detachable for easy installation.
  • External water/dust resistance link indicator and configuration push button.
  • The external configuration push button can be disabled.
Dimensions9.95 × 6.8 × 5 cm
Input Voltage

DC 12V to 24V

System Power Consumption

5W Max

Operation Humidity

10% ~ 95% RH

Operation Temp

25°C to 55°C

Storage Humidity

10%-95% RH

Enclosure Type

Water/Dust resistance Durable Industrial PPM Casing

Input Port

12 Channel

Input Type

Bi-directional Opto-Isolated, User can define either common positive or common negative

Input Range

12V to 24V DC

Output Port

4 Channel

Output Type

Relay dry contact

Arrangement Output

One common output for all 4-output channel

Current Rating

Each channel 5A Max, Total channel 5A Max.


2.4Ghz ~ 2.5Ghz

Supported Wi-Fi Protocol

802.11 b/g/n

Antenna Type


Security Protocol

WPA/WPA2 personal, WPA/WPA2 Enterprise

Encryption Protocol


Server Connection

MQTT Broker with TCP, TCP-TLS, Web-Socket Connection

Server Port

User Definable


Public CA, Self-Signed Certificate

Messaging Format



NTP auto RTC update