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Expert Net Control 2191 Series

Remote Monitoring System with 4 switchable relay outputs and 12 passive signal inputs for GSM

Expert Net Control 2191 allows extensive remote controlling over GSM or TCP/IP network. The device disposes of 4 separately switchable relay outputs and 12 passive signal inputs for polling of NO/NC appliances. Each signal input consists of a 3-fold PTR terminal with ground and 12 V connector, so that cabling efforts are limited. Moerover, a GSM module is integrated. There are two connectors for a redundant power supply by external supply units. In addition, Expert Net Control 2191-2 disposes of Power-over-Ethernet (PoE).

The remote monitoring system is equipped with good readable LED displays that provide a clear overview of sensor values, power supply, input/output and GSM status. Thanks to 4 sensor interfaces the device can be enhanced with optional available sensors to a remote monitoring system measuring environment temperature, humidity, air pressure, leakage as well as smoke. The sturdy metal case of Expert Net Control 2191 allows various mounting types.


Expert Net Control 2191 Series


  • 4 separately switchable relay outputs
  • 12 passive signal inputs with 12 V
  • Integrated GSM module
  • 2 inputs for redundant power supply
  • Alerting through e-mails, SNMP and SMS traps
  • 4 sensor ports for a variety of sensor types
  • IPv6, SNMPv3, SSL, Telnet, Radius, Modbus TCP


  • 4 switchable, potential-free relay outputs with change-over connectors (NO and NC), high switching voltage 36 V, 3 A   
  • Switching of relay outputs dependent on sensor thresholds and inputs possible
  • Relays dispose of high contact reliability also at very small loads
  • 12 passive inputs for monitoring NO and NC devices, e.g. door contacts, smoke detectors, leakage sensors etc.
  • Each signal input includes a 12 V connector for supply of NO/NC devices
  • 4-channel watchdog for monitoring connected consumers (ICMP/TCP)
  • 4 interfaces for optional sensors for environmental monitoring (temperature, humidity and air pressure)
  • Quadband GSM module
  • Control via voicecall and SMS
  • GSM user access for all ports configurable
  • FreeCall: Predefined action upon toll-free incoming call from a specific number
  • GSM antenna 0560 included in delivery
  • For pre-paid and post-paid SIM cards (SIM card not included)
  • Messages by e-mail, Syslog and SNMP traps depending on threshold values of sensor metering and signal inputs
  • A clearly visible LED display for total current, IP address, sensor data and error reports
  • LED display for status of power supply, inputs/outputs and GSM
  • 2 inputs for redundant power supply (12 V DC) via 2 external power supply units (one external power supply 7903 included in delivery for 2191-1)
  • For Expert Net Control 2191-2 additional power supply by Power-over-Ethernet (PoE) possible
  • Sturdy metal housing allows for various types of mounting
  • Comfortable DIN rail mounting by optional Mounting Clip 0860
  • Free Android App and iPhone App allow access from anywhere
  • Low internal power consumption
  • 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, relays states are preserved)
  • 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 inputIntegrated GSM moduleDual-CircuitNetwork interfaceInterface for external sensorsInterface for calibrated sensorsPower supply by Power-over-EthernetiPhone/Android App for remote access
Electrical Connections
2 sockets for external power supply units (PTR multiconnector, 2-fold)
4 switchable outputs (PTR multiconnector, 3-fold)
12 passive signal inputs (PTR multiconnector, 3-fold)
4 sensor connectors RJ45 for optional sensors (temperature, humidity and air pressure)
Ethernet connector RJ45 (10/100 Mbit/s)
Additional power supply by Power-over-Ethernet (2191-2)
Connector for GSM antenna 0560 (included in delivery)
Slot for SIM card
Technical Details
Powdered steel case, LxHxD: 139 x 91 x 35 mm
Comfortable DIN rail mounting by optional mounting clip
Weight: ca. 440 g
Operating temperature: 0-50 °C
Storage temperature: -20 - 70 °C
Relative humidity: 0 - 95 % (non-condensing environment)
Order code
2191-2 (PoE integrated)
Scope of delivery
Expert Net Control 2191-1 / 2191-2
Power Supply Unit 7903 (for 2191-1)
GSM Rod Antenna 0560
Quick start guide
Description File name Version Date Size Changes to previous version/Comments
Manual manual-enc2111-2191.pdf 1.2.2 13/12/2019 3.35 MB

User manual

Product Brief gude-product-brief-enc2111-2191-series.pdf 04/04/2019 844.85 KB

Short product description

Quick Start Guide schnellstart_quickstart_ip-devices.pdf 1.4 23/09/2019 914.35 KB

Quick start guide (leaflet)

Declaration ce-declaration_enc2191-series_12-06-2017.pdf 12/06/2017 62.82 KB

CE declaration of conformity

Firmware 1.2.8 05/05/2020 829.05 KB

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

Revision history

System Tool gblconf_v2.7.11.exe 2.7.11 11/09/2017 793.35 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