HT1002
Terminal with wire-number transition
This representation identifies a terminal across which the publisher permits a wire-number change.
IEC
IEEE / ANSI · TB
ANSI/IEEE terminal with wire number change symbol
IEEE-oriented round terminal at which the wire number changes, with a different number on each side.
In plain English
What does ANSI/IEEE terminal with wire number change mean?
The publisher's IEEE terminal preview includes a round terminal form at which the wire number changes. It is used at boundaries such as panel to field interfaces, where the panel wiring uses one numbering scheme and the field cable cores another.
A simple example
This illustration is independent and not the IEEE graphic. The electrical connection is continuous; only the identifier changes. Readers tracing a circuit must follow the number change, and the terminal plan should list both numbers against the terminal.
What the drawings help you do
Follow the new wire number beyond the terminal. Check both numbers appear on the terminal plan. The change form renumbers the wire; the standard wire number form keeps one number through the terminal.
This particular reference
IEEE-oriented round terminal at which the wire number changes, with a different number on each side. The change form renumbers the wire; the standard wire number form keeps one number through the terminal.
- Terminal
- An identified point where a conductor connects.
- Schematic
- A drawing showing function and connections rather than physical appearance.
Read the source: Autodesk IEEE Symbol Preview — Terminals · IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams
IEEE / ANSI · Autodesk IEEE-oriented Round with Wire Number Change terminal
Autodesk publishes this block under IEEE Symbol Preview: Terminals. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic · TB
What it represents
The publisher's IEEE terminal preview includes a round terminal form at which the wire number changes. It is used at boundaries such as panel to field interfaces, where the panel wiring uses one numbering scheme and the field cable cores another.
This illustration is independent and not the IEEE graphic. The electrical connection is continuous; only the identifier changes. Readers tracing a circuit must follow the number change, and the terminal plan should list both numbers against the terminal.
How to read it
- Follow the new wire number beyond the terminal.
- Check both numbers appear on the terminal plan.
Information to show or reference
- Show both wire numbers at the terminal.
- List both on the terminal plan.
- Use the change form only at genuine boundaries.
A distinction that matters
The change form renumbers the wire; the standard wire number form keeps one number through the terminal.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEEE Symbol Preview — Terminals
Exact public IEEE-oriented terminal preview listing the round with wire number change form.
IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams
Graphic-symbol standards context and official status; not a source of reproduced artwork.
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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