Intercom solutions for chemicals

When feedstock chemicals flow across large sites, extreme environments and noise all around, security and communication plays an integral role to enhance safety and smooth workflows. Instant two-way voice communication with unique speech intelligibility as well as site-wide announcements via integrated PA-systems minimize risks in these often explosive environments. Ex-proof terminals are especially developed for these types of zones where chemicals are at risk of igniting. 


  • Chemical plants
  • Hydrogen plants
  • Areas with hazardous atmospheres

Applications and Key Benefits

  • Protecting lives and corporate assets.
  • Efficient, well-coordinated warnings, alarms and evacuation support in emergency situations.
  • Instant communication of vital information to all or selected areas/zones.
  • Built-in automatic early warning of emerging system problems.
  • Compliance with legal and corporate regulations.
  • Safe to operate in areas with explosive atmospheres.
  • Optimising workflows and boosting efficiency through communication.
  • Reducing risk of workplace accidents and hazards.
  • Fast call connections and superior ease of use.
  • Conference calls (“party lines”) for fast information distribution.
  • Group calls and announcements via Intercom stations.
  • Integration of PA/GA, mobile radio communication and telephones (land-lines and mobile radio) into the Intercom system.
  • Integration of other systems like CCTV and building management systems on a single operating platform.
  • Saves money by eliminating the need for extra hardware.
  • Enhanced functionality, thanks to individual systems pooling their resources and working. together in a team-like fashion.
  • Reduced complexity, thanks to seamless, fail-safe interfaces.
  • Secure, restricted access to industrial premises or specific areas for authorised personnel.   
  • Protecting material assets and corporate information.
  • Monitoring, control and automation of various industrial equipment.
  • Event logging and audio/video recording.
  • Solutions for chemical industry
  • Superior speech intelligibility in noisy industrial environments

    Extra high volume capacity – Active background noise suppression – Intelligent Volume Control (IVC) – 16 kHz eHD Voice speech quality

  • Stations for Ex zones and industrial environments

    Stations for Ex zones and industrial environments
    • ATEX and IEC Ex certified system
    • Certified in accordance with highest Explosion Hazard Group IIC and Temperature T6
    • Group and category Ex II 2 G D for zone 1, 2, 21 and 22
    • Protected against water, dust and dirt, as per IP 66
    • Integrated 25-Watt amplifier for noisy environments
  • Public Address and General Alarm (PA/GA) systems

    Public Address and General Alarm (PA/GA) systems
    • ATEX and IEC Ex certified system
    • Control units, amplifiers and Intercom Stations for permanent self-monitoring of system functions and critical signal paths
    • Intelligent, addressable loudspeakers and flashing lights
    • Accessories (e. g., acoustic hoods)
  • Access Control and Communication at doors and barriers

    Access Control and Communication at doors and barriers
    • Secured vehicular and pedestrian access to the site and individual areas. Calls that cannot be answered immediately can be forwarded automatically to mobile devices.
    • Integration of access readers and access control systems.
    • Modules for integration in barrier gates at entrance and exit points.
    • Perfect speech intelligibility even in case of loud traffic noise.
  • More than just communication

    Commend products come with built-in inputs and outputs for control, monitoring and automation purposes.

  • Integrated System

    Integrated System

    Interfaces / Input – Output control
    • Integration of Fire & Gas, ESD, ICSS, Dispatcher, DCS, and TSS systems
    • Integration of operating radio (Tetra and Analog)
    • Integration of telephone-lines and VoIP systems (SIP/IAX)
    • Control of visual warnig signals and displays
    • Interfaces to third-party systems, such as video surveillance and building management systems (OPC)
    • Active monitoring of input signals for various purposes, such as fire or burglar alarms
    • Control of output signals, e.g. doors and barriers
    • Customized accessibility like EIB-Bus
  • Permanent availability through system self-monitoring

    Permanent availability through system self-monitoring

    Every call guaranteed to get through – 24/7
    • Intercom Stations come equipped with automated functionality self-monitoring (loudspeaker/microphone self-monitoring)
    • Connection monitoring
    • Redundant server fail-safety and dynamic call forwarding
    • Saves costs by eliminating the need for manual function testing
  • Networking

    Sites can be networked and managed from one central control center.

  • Easy Control Desk management

    Overview – Surveillance – Control
    Easy Control Desk management

    Control Desk systems by Commend provide a continuous system-wide overview to support instant reaction in case of an emergency. Thanks to the highly user-friendly GUI, managing even complex Intercom networks or video and control functions is a breeze.

    • Call management is tailored to the needs and workflows of the application environment
    • Calls can be forwarded automatically to other Control Desks, Intercom stations (stationary or mobile), or to land-line telephones
    • Automatic call distribution at peak times, including automatic call prioritisation
  • Software solutions for Control Desks

    Audio – Video – Data
    Software solutions for Control Desks
    • Indication of the calling terminal’s location, and optional automatic display of a video/CCTV connection
    • Information from and control of different systems on one visual operating platform
    • Event logging
    • Audio and/or video recording
  • Options

    • Software Intercom Client for mobile devices
    • Various Intercom Stations for Operations Communication
    • Intercom Modules for e.g. lifts
Your integrated Security and Communication Solution for the chemical industry is just one click away