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Data outlet plan symbol
Plan symbol for a structured-cabling data outlet, usually tagged with the number of ports and outlet ID.
IEC
IEC · TO
Telephone outlet plan symbol
Plan symbol for a telephone outlet where a voice service is terminated for a handset or device.
In plain English
What does Telephone outlet plan mean?
Telephone outlets are drawn as a triangle or outlet shape tagged T or TP. In modern buildings, voice is usually carried on structured cabling, so the telephone outlet may simply be a data outlet assigned to voice, but legends still keep a separate mark for analogue lines, lift phones and alarm diallers.
A simple example
Analogue lines remain common for lifts, emergency phones and some alarm communicators. The plan symbol tells the installer that a dedicated voice pair must reach this point. The symbol does not show whether the line is analogue, digital or VoIP.
What the drawings help you do
Check whether a dedicated analogue line is required. Match to the voice cabling schedule. A telephone set symbol represents the handset itself; the outlet is the wall termination.
This particular reference
Plan symbol for a telephone outlet where a voice service is terminated for a handset or device. A telephone set symbol represents the handset itself; the outlet is the wall termination.
- Schematic
- A drawing showing function and connections rather than physical appearance.
Read the source: IEC graphical symbols for diagrams · Electrical installation design methodology and references
IEC · Telecommunication outlet, telephone
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 · TO
What it represents
Telephone outlets are drawn as a triangle or outlet shape tagged T or TP. In modern buildings, voice is usually carried on structured cabling, so the telephone outlet may simply be a data outlet assigned to voice, but legends still keep a separate mark for analogue lines, lift phones and alarm diallers.
Analogue lines remain common for lifts, emergency phones and some alarm communicators. The plan symbol tells the installer that a dedicated voice pair must reach this point. The symbol does not show whether the line is analogue, digital or VoIP.
How to read it
- Check whether a dedicated analogue line is required.
- Match to the voice cabling schedule.
Information to show or reference
- State line type.
- Tag outlet ID.
- Identify service provider demarcation.
A distinction that matters
A telephone set symbol represents the handset itself; the outlet is the wall termination.
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.
Electrical installation design methodology and references
Installation design context for coordinating low-current systems with power and lighting.
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.
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