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Electrical Symbols — Switches and Relays

In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. The mechanism of a switch may be operated directly by a human operator to control a circuit (for example, a light switch or a keyboard button), may be operated by a moving object such as a door-operated switch, or may be operated by some sensing element for pressure, temperature or flow. A relay is a switch that is operated by electricity. Switches are made to handle a wide range of voltages and currents; very large switches may be used to isolate high-voltage circuits in electrical substations.

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.

Example of DFD for Online Store (Data Flow Diagram)

Data flow diagrams (DFDs) reveal relationships among and between the various components in a program or system. DFDs are an important technique for modeling a system’s high-level detail by showing how input data is transformed to output results through a sequence of functional transformations.
Example of DFD for Online Store shows the Data Flow Diagram for online store and interactions between the Visitors, Customers and Sellers, as well as Website Information and User databases.
Steps to Creating a Sales Process Flow Chart
Steps to Creating a Sales Process Flow Chart

Cisco Multimedia, Voice, Phone. Cisco icons, shapes, stencils and symbols

The ConceptDraw vector stencils library Cisco Multimedia, Voice, Phone contains equipment symbols for drawing the computer network diagrams.

Building Drawing Software for Design School Layout

Use ConceptDraw DIAGRAM to develop the equipment the classrooms for kids in preschools, schools and colleges to the lecture halls in universities, conference rooms and even large conference halls.
This software could help you to succeed at work if you did engineering job, designing or building.

Communication Network Topology

This sample was created in ConceptDraw DIAGRAM diagramming and vector drawing software using the Computer and Networks solution from Computer and Networks area of ConceptDraw Solution Park.
A communication network topology is defined by the evaluating costs of the states. Each state represents the possible distribution of the hubs and remote nodes to nodes of the communication network.

Time - Design Elements

Many of us want to be able to create designs efficiently yet quickly. ConceptDraw DIAGRAM will help you to make awesome drawings without having to design all those Time Elements. These elements include graphs, symbols, cliparts, visual data representation and a whole lot of other stuff.
The design elements library "Cable TV" contains 64 symbols of CATV network equipment.
"Cable television is a system of distributing television programs to subscribers via radio frequency (RF) signals transmitted through coaxial cables or light pulses through fiber-optic cables. This contrasts with traditional broadcast television (terrestrial television) in which the television signal is transmitted over the air by radio waves and received by a television antenna attached to the television. FM radio programming, high-speed Internet, telephone service, and similar non-television services may also be provided through these cables.
The abbreviation CATV is often used for cable television." [Cable television. Wikipedia]
Use the shapes library "Cable TV" to draw CATV system design floor plans, network topology diagrams, wiring diagrams and cabling layout schemes using the ConceptDraw PRO diagramming and vector drawing software.
The vector stencils library "Cable TV" is included in the Electric and Telecom Plans solution from the Building Plans area of ConceptDraw Solution Park.
Cable TV symbols
Cable TV symbols, wavelength multiplexer, wavelength demultiplexer, vault handheld, variable equalizer, tree guy, anchor, tensioned messenger wire, telephone pole, supporting structures, strut, splitter, slack span messenger wire, sidewalk down guy, anchor, sidewalk down guy, secondary hub, rock guy, anchor, riser pole, push brace, pole, proposed CATV pole, primary hub, power supply, power pole, pole-to-pole guy, pedestal, underground routing, output directional tap, optical transmitter, optical splitter, optical splice location, optical node, optical fiber cable, optical connector, optical amplifier, node, manhole, line terminations, joint usage pole, joint use pole, transformer, joint usage pole, joint use pole, power, telephone, headend, signal processing, ground, fixed flat attenuators, fixed equalizer, extension arm, duct line, underground routing, down guy, anchor, down guy, directional tap, direct buried underground routing, coaxial splice, cable AC power combiner, built CATV pole, building guy, anchor, bond, AC, power block,

Network Diagramming Software for Design Network Layout Diagrams

ConceptDraw DIAGRAM is perfect for software designers and software developers who need to draw Network Layout Diagrams.

Cisco Network Topology

Draw Cisco Network Topology and Cisco Computer Network Diagrams, Designs, Schematics, and Network Maps using ConceptDraw in no Time!
Cisco Network Diagrams solution also provides 15 libraries of 508 Cisco symbols for network components and points, LAN and WAN, schematic and wiring drawings.