IEC · IC

Door intercom station symbol

Plan symbol for an intercom door station with speaker and microphone, used for visitor entry.

In plain English

What does Door intercom station mean?

Door intercom stations combine a loudspeaker, microphone and call button, and sometimes a camera, at a building entry. Plans draw a box with combined loudspeaker and microphone marks, tagged IC or DS, beside the door.

A simple example

The station links to indoor answering units and often to an electric door release. The plan should show this link so the installer runs the right cabling. The symbol does not show whether the system is two-wire, IP or audio-only.

Identify the device and formRead the connections and stateCheck the equipment reference
A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.

What the drawings help you do

Find the linked answering units. Check for door release interface. A combined loudspeaker and microphone symbol is a component; this marks a complete entry station.

This particular reference

Plan symbol for an intercom door station with speaker and microphone, used for visitor entry. A combined loudspeaker and microphone symbol is a component; this marks a complete entry station.

Terminal
An identified point where a conductor connects.
Schematic
A drawing showing function and connections rather than physical appearance.

Read the source: IEC graphical symbols for diagrams · Autodesk IEC-60617 preview: Electroacoustic annunciation forms

IEC · Intercom station

IEC 60617 installation-plan style (architectural and topographical installation symbols); independently drawn, not certified IEC geometry or a database identifier.

Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.

GA · ICDoor intercom station symbol: original educational illustration
Original educational illustrationNot to scale · See source and graphic notes

What it represents

Door intercom stations combine a loudspeaker, microphone and call button, and sometimes a camera, at a building entry. Plans draw a box with combined loudspeaker and microphone marks, tagged IC or DS, beside the door.

The station links to indoor answering units and often to an electric door release. The plan should show this link so the installer runs the right cabling. The symbol does not show whether the system is two-wire, IP or audio-only.

How to read it

  • Find the linked answering units.
  • Check for door release interface.

Information to show or reference

  • State system type.
  • Show answering units.
  • Show door release.

A distinction that matters

A combined loudspeaker and microphone symbol is a component; this marks a complete entry station.

Sources you can follow

These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.

IEC graphical symbols for diagrams

IEC graphical symbol context for installation and communication plans; independently drawn here.

IEC · Public reference checked 13 October 2026 · Link only

Autodesk IEC-60617 preview: Electroacoustic annunciation forms

Public IEC-oriented electroacoustic family for comparing speaker and microphone marks.

Autodesk · Public reference checked 14 October 2026 · Link only

About this graphic

This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.

SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.

Entry JSON · Entry Markdown · Last editorial update: 28 October 2026

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