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Expert Net Control 2302-1

Remote I/O System with 4 relay outputs and 8 passive signal inputs for DIN-rail mounting

Expert Net Control 2302-1 is a I/O system that allows for remote controlling over TCP/IP network. The device disposes of four individually switchable, potential-free relay ouputs and eight passive signal inputs for polling of NO and NC devices (e.g. door contacts or smoke detectors). Thanks to the sensor interface (RJ45), the monitoring system can be extended by optional available sensors: ambient temperature, humidity, air pressure as well as leakage of liquids can be polled. Communication can be effectuated over Telnet, Radius and Modbus TCP. Modern security standards such as SNMPv3, SSL and IPv6 are supported.

Expert Net Control 2302-1 is easily mounted on DIN rail and enables remote controlling and monitoring of ICT installations in less than no time.


Expert Net Control 2302-1


  • 4 relay outputs
  • Switching dependent on sensor threshold possible
  • 8 passive signal inputs
  • Event-based messages
  • Interface for optional sensors (RJ45)
  • IPv6, SNMPv3, SSL, Telnet, Radius, Modbus TCP
  • Free smartphone app for remote access


  • 4 switchable, potential-free relay ouputs, switching voltage 230 V AC, 16 A / 24 V DC, 10 A
  • All outputs individually switchable directly at the device, via HTTPS or via command line tool
  • Status and Power-up delay (0...9999 seconds) adjustable individually for each output after power blackout
  • Simultaneous power-up of multiple outputs prevented by latency time of 1 second
  • Switching of relay outputs dependent on sensor threshold or inputs possible
  • Programmable turn-on/turn-off sequence
  • 4-channel watchdog to monitor connected consumers (ICMP/TCP)
  • Bicoloured LEDs on front panel display status information of inputs/outputs
  • 8 passive signal inputs for monitoring NO and NC devices, e.g. door contacts, smoke detectors etc.
  • Compact device designed for DIN-rail mounting
  • Interface for optional sensors for environmental monitoring (temperature, humidity and air pressure)
  • Messages by e-mail, Syslog and SNMP traps depending on threshold values of sensor metering and signal input as well
  • Dedicated high-inrush relays avoid welding of relay contacts at start-up peaks
  • Free Android App and iPhone App allow access from anywhere
  • Power supply via DIN rail supply unit 7902 (230 VAC / 12 VDC 1250 mA) (not included in delivery)
  • Low internal power consumption, typ. 2 W
  • Developed and manufactured in Germany


  • Dynamic IP address allocation by DHCP or manual allocation with static IP address
  • IPv6-ready
  • Firmware update over Ethernet during operations (without reboot of device or outputs)
  • Syslog support
  • SNMP Get/Traps (SNMPv1, v2c, v3)
  • TLS 1.0, 1.1, 1.2
  • IP Access Control List
  • Secure login through SSL
  • Configuration and control via Telnet
  • Radius and Modbus TCP support
  • Comfortable configuration by web browser, Windows or Linux tool
  • 10/100 Mbit/s
Switching relay outputSignal inputOperation under DC/AC possibleNetwork interfaceInterface for external sensorsInterface for calibrated sensorsRS232 interfaceiPhone/Android App for remote access
Electrical Connections
Terminal clamps for power supply with 230 V AC or 24 V DC
4 switchable outputs (terminal clamp)
8 passive signal inputs (terminal clamp)
1 Ethernet connector RJ45 (10/100 Mbit/s)
1 sensor connector (RJ45) for optional sensors or serial interface (RS232)
Technical Details
LxHxD: 10.5 x 7 x 9 cm
Weight: ca. 300 g
Operating temperature: 0-50 °C
Storage temperature: -20 - 70 °C
Relative humidity: 0 - 95 % (non-condensing environment)
Order code
Scope of delivery
Expert Net Control 2302-1
Quick start guide
Description File name Version Date Size Changes to previous version/Comments
Manual manual-enc2302.pdf 1.1.2 15/03/2021 2.98 MB

User manual

Product Brief gude-product-brief-enc2302.pdf 04/04/2019 309.05 KB

Short product description

Quick Start Guide schnellstart_quickstart_ip-devices.pdf 1.4 12/04/2021 914.35 KB

Quick start guide (leaflet)

Block Diagram blockdiagram-enc2302-1.pdf 11/07/2018 453.11 KB

Connection Block Diagram

Declaration ce-declaration_enc2302_02-07-2018.pdf 02/07/2018 108.13 KB

CE declaration of conformity

Firmware 1.2.5 28/06/2021 766.81 KB

Latest firmware and MIB table as zip file. Firmware can be installed via webinterface of device.

Revision history

System Tool 2.7.13 10/02/2021 755.47 KB

Windows-Tool for firmware updates and network configuration

System Tool gblc-v0.7.11.tar.gz 0.7.11 11/08/2015 139.15 KB

Linux-Tool for firmware updates and network configuration