The vector stencils library "Cisco telepresence" contains 8 symbols of videoconference and telepresence equipment for drawing Cisco computer network diagrams.
"Videoconferencing is the conduct of a videoconference (also known as a video conference or videoteleconference) by a set of telecommunication technologies which allow two or more locations to communicate by simultaneous two-way video and audio transmissions. It has also been called 'visual collaboration' and is a type of groupware. ...
The core technology used in a videoconferencing system is digital compression of audio and video streams in real time. The hardware or software that performs compression is called a codec (coder/ decoder). Compression rates of up to 1:500 can be achieved. The resulting digital stream of 1s and 0s is subdivided into labeled packets, which are then transmitted through a digital network of some kind (usually ISDN or IP). The use of audio modems in the transmission line allow for the use of POTS, or the Plain Old Telephone System, in some low-speed applications, such as videotelephony, because they convert the digital pulses to/ from analog waves in the audio spectrum range.
The other components required for a videoconferencing system include:
(1) Video input : video camera or webcam.
(2) Video output: computer monitor, television or projector.
(3) Audio input: microphones, CD/ DVD player, cassette player, or any other source of PreAmp audio outlet.
(4) Audio output: usually loudspeakers associated with the display device or telephone.
(5) Data transfer: analog or digital telephone network, LAN or Internet.
(6) Computer: a data processing unit that ties together the other components, does the compressing and decompressing, and initiates and maintains the data linkage via the network." [Videoconferencing. Wikipedia]
The symbols example "Cisco telepresence - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Cisco Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ computer-networks-cisco
"Videoconferencing is the conduct of a videoconference (also known as a video conference or videoteleconference) by a set of telecommunication technologies which allow two or more locations to communicate by simultaneous two-way video and audio transmissions. It has also been called 'visual collaboration' and is a type of groupware. ...
The core technology used in a videoconferencing system is digital compression of audio and video streams in real time. The hardware or software that performs compression is called a codec (coder/ decoder). Compression rates of up to 1:500 can be achieved. The resulting digital stream of 1s and 0s is subdivided into labeled packets, which are then transmitted through a digital network of some kind (usually ISDN or IP). The use of audio modems in the transmission line allow for the use of POTS, or the Plain Old Telephone System, in some low-speed applications, such as videotelephony, because they convert the digital pulses to/ from analog waves in the audio spectrum range.
The other components required for a videoconferencing system include:
(1) Video input : video camera or webcam.
(2) Video output: computer monitor, television or projector.
(3) Audio input: microphones, CD/ DVD player, cassette player, or any other source of PreAmp audio outlet.
(4) Audio output: usually loudspeakers associated with the display device or telephone.
(5) Data transfer: analog or digital telephone network, LAN or Internet.
(6) Computer: a data processing unit that ties together the other components, does the compressing and decompressing, and initiates and maintains the data linkage via the network." [Videoconferencing. Wikipedia]
The symbols example "Cisco telepresence - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Cisco Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ computer-networks-cisco
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.Electrical Symbols — Transmission Paths
Variable delay elements are often used to manipulate the rising or falling edges of the clock or any other signal in integrated circuits. Delay elements are also used in delay locked loops and in defining a time reference for the movement of data within those systems.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.
Network VOIP. Computer and Network Examples
Voice-over-Internet protocol (VoIP) is a protocol of the voice communications and multimedia sessions through the Internet or other packet-switched networks. VoIP systems use the data compression techniques, encapsulated in a data-packet stream over IP. They allows users to use regular telephone networks through any internet service provider and anywhere. VoIP is also called IP telephony, Internet telephony, Voice over broadband (VoBB).This example was created in ConceptDraw DIAGRAM using the Computer and Networks Area of ConceptDraw Solution Park and shows the VoIP Network.
![](https://i1.ytimg.com/vi/h62-9iTdQp0/hqdefault.jpg)
Electrical Symbols — Electron Tubes
Invented in 1904 by John Ambrose Fleming, vacuum tubes were a basic component for electronics throughout the first half of the twentieth century, which saw the diffusion of radio, television, radar, sound reinforcement, sound recording and reproduction, large telephone networks, analog and digital computers, and industrial process control. From the mid-1950s solid-state devices such as transistors gradually replaced tubes. However, there are still a few applications for which tubes are preferred to semiconductors; for example, the magnetron used in microwave ovens, and certain high-frequency amplifiers.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.
Cisco Security. Cisco icons, shapes, stencils and symbols
The ConceptDraw vector stencils library "Cisco Security" contains 16 symbols of security devices and equipment for drawing the computer network diagrams using the ConceptDraw DIAGRAM diagramming and vector drawing software.How To use House Electrical Plan Software
House Electrical Plan Software for creating great-looking home floor, electrical plan using professional electrical symbols.You can use many of built-in templates, electrical symbols and electical schemes examples of our House Electrical Diagram Software.
ConceptDraw is a fast way to draw: Electrical circuit diagrams, Schematics, Electrical Wiring, Circuit schematics, Digital circuits, Wiring in buildings, Electrical equipment, House electrical plans, Home cinema, Satellite television, Cable television, Closed-circuit television.
House Electrical Plan Software works across any platform, meaning you never have to worry about compatibility again. ConceptDraw DIAGRAM allows you to make electrical circuit diagrams on PC or macOS operating systems.
![Create an Electrical Diagram](https://i1.ytimg.com/vi/2yPHyTKa8H4/hqdefault.jpg)
Electrical Symbols — VHF UHF SHF
Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 MHz and 3 GHz, also known as the decimetre band as the wavelengths range from one meter to one decimetre. Radio waves with frequencies above the UHF band fall into the SHF (super-high frequency) or microwave frequency range. Lower frequency signals fall into the VHF (very high frequency) or lower bands. UHF radio waves propagate mainly by line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. They are used for television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, and numerous other applications.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.
Electrical Symbols — Integrated Circuit
An integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small plate ("chip") of semiconductor material, normally silicon. This can be made much smaller than a discrete circuit made from independent electronic components. ICs can be made very compact, having up to several billion transistors and other electronic components in an area the size of a human fingernail.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.
Interactive voice response (IVR) networks. Computer and Network Examples
Interactive Voice Response (IVR) is a system of the prerecorded voice messages that allows a computer to interact with humans. IVR performs the function of the routing calls within a call center, using the information entered by the customer on the phone keypad in the touchtone mode.This example was created in ConceptDraw DIAGRAM using the Computer and Networks Area of ConceptDraw Solution Park and show the Interactive Voice Response (IVR) network.
![](https://i1.ytimg.com/vi/h62-9iTdQp0/hqdefault.jpg)
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