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Network Diagram Examples

Network diagram is a chart which represents nodes and connections between them in computer network or any telecommunication network, it is a visual depiction of network architecture, physical or logical network topology. There are used common icons for the Network diagrams design, such as icons of various network appliances, computer devices, routers, clouds, peripheral devices, digital devices, etc. Network diagrams can represent networks of different scales (LAN level, WAN level) and detailization. ConceptDraw DIAGRAM diagramming software enhanced with Computer Network Diagrams solution from Computer and Networks area includes huge collection of computer and network templates, design objects and stencils, and numerous quantity of Network diagram examples and samples, among them: Basic Computer Network Diagrams, Communication Network Diagram, Wireless Router Network Diagram, LAN Topology Diagram, Computer Network System Design Diagram, Mobile Satellite Communication Network, Web-based Network Diagram, Hybrid Network Diagram, and many others.
The vector stencils library "Switches and relays" contains 58 symbols of electrical contacts, switches, relays, circuit breakers, selectors, connectors, disconnect devices, switching circuits, current regulators, and thermostats for electrical devices.
"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 most familiar form of switch is a manually operated electromechanical device with one or more sets of electrical contacts, which are connected to external circuits. Each set of contacts can be in one of two states: either "closed" meaning the contacts are touching and electricity can flow between them, or "open", meaning the contacts are separated and the switch is nonconducting. The mechanism actuating the transition between these two states (open or closed) can be either a "toggle" (flip switch for continuous "on" or "off") or "momentary" (push-for "on" or push-for "off") type.
A switch may be directly manipulated by a human as a control signal to a system, such as a computer keyboard button, or to control power flow in a circuit, such as a light switch. Automatically operated switches can be used to control the motions of machines, for example, to indicate that a garage door has reached its full open position or that a machine tool is in a position to accept another workpiece. Switches may be operated by process variables such as pressure, temperature, flow, current, voltage, and force, acting as sensors in a process and used to automatically control a system. ... A switch that is operated by another electrical circuit is called a relay. Large switches may be remotely operated by a motor drive mechanism. Some switches are used to isolate electric power from a system, providing a visible point of isolation that can be padlocked if necessary to prevent accidental operation of a machine during maintenance, or to prevent electric shock." [Switch. Wikipedia]
"A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits as amplifiers: they repeated the signal coming in from one circuit and re-transmitted it on another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations.
A type of relay that can handle the high power required to directly control an electric motor or other loads is called a contactor. Solid-state relays control power circuits with no moving parts, instead using a semiconductor device to perform switching. Relays with calibrated operating characteristics and sometimes multiple operating coils are used to protect electrical circuits from overload or faults; in modern electric power systems these functions are performed by digital instruments still called "protective relays"." [Relay. Wikipedia]
The shapes example "Design elements - Switches and relays" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Switch and relay symbols
Switch and relay symbols, two way contact, time delay make, open switch, time-delay closing, TDC, time delay make, normally open, time delay break, normally closed, time delay break, closed switch, time-delay opening, TDO, thermostat, temperature switch, temperature sensitive switch, temperature actuated switch, switch disconnector, isolating-switch, stay put, contact without spring return, spring return, make, spring return, break, spring return, shorting selector, make-before-break, shorting, bridging, contact transfer, selector switch, break-before-make, nonshorting, nonbridging, contact transfer, safety interlock, circuit opening, relay contacts, relay coil, relay, pushbutton, make, circuit closing, mushroom head, push-pull head, pushbutton, break, circuit opening, mushroom head, push-pull head, pushbutton, 2-circuit, circuit opening, break, proximity limit switch, directly actuated, spring returned, normally closed, pressure actuated switch, pilot light, passing make-contact, mercury switch, manual switch, manually operated switch, make contact, liquid level actuated switch, limit switch, directly actuated, spring returned, normally open, limit switch, directly actuated, spring returned, normally closed, limit switch, isolator, inertia switch, gas flow actuated switch, fuse, flow actuated, circuit breaker, change-over contact, break contact, SPST, single-pole, single-throw, switch, SPDT, single-pole, double-throw, switch, DPST, double-pole, single-throw, switch, DPDT, double-pole, double-throw, switch, 4 position, switch, 3 position, three-position, switch, 2 position, switch,
Used Solutions

Network Diagram Software

Network Diagram Software
Network Diagrams are used to visually represent the network architecture, to illustrate the network structure, how the computers and other elements of the network are connected each other using a variety of network symbols, clipart and connection lines. They are incredibly useful on the stages of projecting computer network, of its construction and exploitation. Professionally designed and accurate Network Diagrams are equally convenient for computer engineers and users. You can construct them by hand on the paper or use special network diagramming software, such as ConceptDraw DIAGRAM. Having at disposal the powerful network diagramming tools of Computer Network Diagrams solution included to ConceptDraw Solution Park, you can succeed in drawing various types of Computer Network Diagrams, among them Network Communication Plans, Logical Network Diagrams, Network Topology Diagrams, LAN and WAN Diagrams, Network Floor Plan Layouts, Computer Network System Diagrams, Web-based Network Diagrams, Wireless Network Diagrams, Cisco Network Diagram, and others.