|
Switchboard Operators
The term switchboard, when used by itself, may refer to: *Telephone switchboard * Electrical controls: **Electric switchboard in industrial applications like electricity generation **Distribution board in residential and commercial applications *Printed circuit board *Mixing console *helpline, Switchboard, another term a helpline. *Switchboard of Miami, a nonprofit organization offering hotline, informational and referral services in Miami, Florida *Switchboard (UK), formerly known as the London Lesbian and Gay Switchboard, a helpline for the LGBT+ persons in the UK {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephone Switchboard
A telephone switchboard was a device used to connect circuits of telephones to establish telephone calls between users or other switchboards, throughout the 20th century. The switchboard was an essential component of a manual telephone exchange, and was operated by switchboard operators who used electrical cords or switches to establish the connections. The electromechanical automatic telephone exchange, invented by Almon Strowger in 1888, gradually replaced manual switchboards in central telephone exchanges around the world. In 1919, the Bell System in Canada also adopted automatic switching as its future technology, after years of reliance on manual systems. Nevertheless, many manual branch exchanges remained operational into the second half of the 20th century in many enterprises. Later electronic devices and computer technology gave the operator access to an abundance of features. A private branch exchange (PBX) in a business usually has an attendant console, or an auto-atten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Switchboard
An electric switchboard is a device that distributes electricity from one or more sources of supply to several smaller load circuits. It is an assembly of one or more panels, each of which contains switching devices for the protection and control of circuits fed from the switchboard. Several manufacturers make switchboards used in industry, commercial buildings, telecommunication facilities, oil and gas plants, data centers, health care, and other buildings, and onboard large ships. A switchboard is divided into different interconnected sections, generally consisting of a main section and a distribution section. These two sections are sometimes replaced by a combination section, which is a section that can fulfill the roles of both aforementioned sections. Switchboards can also sometimes come with an auxiliary section that is used to house devices that cannot be housed in the same section as other devices. Definition The U.S. National Electrical Code (NEC) defines a switchboard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distribution Board
A distribution board (also known as panelboard, breaker panel, electric panel, DB board or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure. Normally, a main switch, and in recent boards, one or more residual-current devices (RCDs) or residual current breakers with overcurrent protection (RCBOs) are also incorporated. In the United Kingdom, a distribution board designed for domestic installations is known as a consumer unit. North America North American distribution boards are generally housed in sheet metal enclosures, with the circuit breakers positioned in two columns operable from the front. Some panelboards are provided with a door covering the breaker switch handles, but all are constructed with a ''dead front''; that is to say the front of the enclosure (whether it has a door or not) prevents the operator of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Printed Circuit Board
A printed circuit board (PCB; also printed wiring board or PWB) is a medium used in Electrical engineering, electrical and electronic engineering to connect electronic components to one another in a controlled manner. It takes the form of a Lamination, laminated sandwich structure of conductive and insulating layers: each of the conductive layers is designed with an artwork pattern of traces, planes and other features (similar to wires on a flat surface) Chemical milling, etched from one or more sheet layers of copper Lamination, laminated onto and/or between sheet layers of a Insulator (electricity), non-conductive substrate. Electrical components may be fixed to conductive pads on the outer layers in the shape designed to accept the component's terminals, generally by means of soldering, to both electrically connect and mechanically fasten them to it. Another manufacturing process adds Via (electronics), vias: plated-through holes that allow interconnections between layers. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mixing Console
A mixing console or mixing desk is an electronic device for mixing audio signals, used in sound recording and reproduction and sound reinforcement systems. Inputs to the console include microphones, signals from electric or electronic instruments, or recorded sounds. Mixers may control analog or digital signals. The modified signals are summed to produce the combined output signals, which can then be broadcast, amplified through a sound reinforcement system or recorded. Mixing consoles are used for applications including recording studios, public address systems, sound reinforcement systems, nightclubs, broadcasting, and post-production. A typical, simple application combines signals from microphones on stage into an amplifier that drives one set of loudspeakers for the audience. A DJ mixer may have only two channels, for mixing two record players. A coffeehouse's tiny stage might only have a six-channel mixer, enough for two singer-guitarists and a percussionist. A nigh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helpline
A helpline, or switchboard, is a telephone service which offers help to those who call. Many helpline services now offer more than telephone support - offering access to information, advice or customer service via telephone, email, web or SMS. The word '' hotline'' is also sometimes used to refer to a helpline. A helpline can provide emotional support to a person in distress in its minimalistic form. It may help the individual. Services include: * user assistance, for example computer software support * telephone counseling, medical hotlines, insolvency hotlines, crisis hotlines and many other types of hotlines. See also * Telephone counseling * Hotline * Single Non-Emergency Number * Emergency telephone number Most public switched telephone networks have a single emergency telephone number (sometimes known as the universal emergency telephone number or the emergency services number) that allows a caller to contact local emergency services for assista ... References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Switchboard Of Miami
Switchboard of Miami, Inc., commonly referred to as Switchboard, was a private, nonprofit and registered 501(c)(3) organization located in Miami, Florida, United States that provided Miami-Dade County with comprehensive telephone counseling and referral services to thousands of social service programs beginning in 1968. The organization also offered counseling services and prevention programs, such as initiatives aimed at assisting high-risk youth and their families through partnerships with local schools. Since 1968, these services have been offered to the community at no charge. Callers can seek advice confidentially, as no information is needed by the company in order to receive the services. Switchboard shut down in 2016 following a "major financial emergency". Credentials The organization maintained a HELPline Services Department that was certified by the American Association of Suicidology, licensed by the Florida Department of Children and Families and accredited by the All ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Mixing Console")