Electrical Symbols — Transmission Paths
Data transmission, digital transmission or digital communications is the physical transfer of data (a digital bit stream or a digitized analog signal) over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibers, wireless communication channels, storage media and computer buses. The data are represented as an electromagnetic signal, such as an electrical voltage, radiowave, microwave, or infrared signal.
Pic. 1. Transmission Paths Library
ConceptDraw DIAGRAM is a powerful software for creating professional looking electrical diagram quick and easy. For this purpose you can use the Electrical Engineering solution from the "Engineering" area of ConceptDraw Solution Park.
Electrical Engineering Solution for ConceptDraw DIAGRAM provides the stencils libraries of ready-to-use predesigned 926 vector symbols, templates and samples that make your electrical drawing quick, easy and effective.
26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.
Pic. 2. Electrical Engineering symbols
Electrical diagram software will assist you in drawing your electrical diagrams with minimal effort and makes it very easy for beginners. Electrical symbols and smart connectors help present your electrical drawings, electrical schematic, wiring diagrams and blue prints.
Pic. 3. Electrical Symbols — Transmission Paths
Most of the electrical symbols can be changed in their appearance, styles and colors according to users' requirements. Electrical symbols are used to represent various electrical and electronic devices in a schematic diagram of an electrical or electronic circuit.
The following table lists some transmission paths electrical symbols in our electrical diagram software.
| Symbol | Meaning | |
| Electrical Symbols — Transmission Paths | ||
![]() | 2-line bus | |
![]() | 3-line bus | |
![]() | 3-line bus 2 | |
![]() | 4-line bus | |
![]() | 4-line bus 2 | |
![]() | 8-line bus | |
![]() | 8-line bus 2 | |
![]() | 2-line bus elbow | |
![]() | 3-line bus elbow | |
![]() | 3-line bus elbow 2 | |
![]() | 4-line bus elbow | |
![]() | 4-line bus elbow 2 | |
![]() | 8-line bus elbow | |
![]() | 8-line bus elbow 2 | |
![]() | Point | |
![]() | Terminal | |
![]() | Terminal 3-phase | |
![]() | Label | |
![]() | Flow direction, right | |
![]() | Flow direction, left | |
![]() | Flow direction, inward | |
![]() | Flow direction, outward | |
![]() | Transmission path | |
![]() | Line, overhead | |
![]() | Line, underground | |
![]() | Line, submarine | |
![]() | Line, loaded | |
![]() | Line, coaxial | |
![]() | Cable group | |
![]() | Lead group | |
![]() | Anticreep device | |
![]() | Line concentrator | |
![]() | Overground enclosure | |
![]() | Overground enclosure 2 | |
![]() | Optical fiber | |
![]() | Optical fiber 2 | |
![]() | Straight bus | |
![]() | Straight bus 2 | |
![]() | Elbow bus | |
![]() | Elbow bus 2 | |
![]() | Elbow bus 3 | |
![]() | Elbow bus 4 | |
![]() | Bus width | |
In communications and electronic engineering, a transmission line is a specialized cable or other structure designed to carry alternating current of radio frequency, that is, currents with a frequency high enough that their wave nature must be taken into account. Transmission lines are used for purposes such as connecting radio transmitters and receivers with their antennas, distributing cable television signals, trunklines routing calls between telephone switching centres, computer network connections and high speed computer data buses.
How to Create an Electrical Diagram Using Transmission Paths Library
- Open ConceptDraw DIAGRAM new document page.
- Select libraries from Electrical Engineering section.

- Transmission paths library contains objects, identified by a blue tile in the library pane. Such objects can be edited by using the Action button menu. To open the menu select an object and click the
button in the upper right corner of the object.
- Select the Smart Connector tool
. To connect elements using this tool, drag the connector from one connect dot to another.You can use Layers to place connections on different layers.
- Result: Electrical Diagram.























































