An intercom (intercommunication device), talkback or door phones is a stand-alone electronic communications system intended for restricted or private dialogue. Intercoms can be portable however mounted permanently in vehicles and buildings. Intercoms can incorporate connections to telephones, walkie talkies, cell phones and to other intercom systems over phone or data lines and switch electronic or electro-mechanical devices like door latches and signal lights.
Intercoms are not to be confused along with "Telephone Door Entry" systems, where the 'Intercom' facility is an choice available on a system in which instruments in a building can be utilized to intercommunicate with each other (generally a single-dwelling), or where apartments can communicate internally along a resident porter.
It is light weight, small, low cost and can double as a handbag. The product join attractive appearance with multi-functionality and is HD ready.
Traditional intercom systems are formed entirely of analogue electronics components but various new features and interfacing options can be accomplished along with new intercom systems depend on digital connections. Video signals can be carried along with voice.
Commonly portable intercoms are utilized by special event production crews and professional sports teams. Performing arts venues such like concert and theaters halls frequently have a combination of permanently mounted and portable intercom elements. Motorsports race tracks frequently have both portable and permanent intercom stations mounted at critical points around the racecourse for utilization by race officials and emergency medical technicians.
Basic intercom system terms:
Master Station or Base Station:
These are units which can control the system, that means. Initiate a call with any of the stations and make announcements over the overall system.
Units that are competent of only initiating a call with a Master Station but not able of initiating calls with any other stations (sometimes called slave units).
Such as sub-stations, these units are only able of initiating a call to a Master Station. Normally they are weather-proof.
Full-featured remote unit that is able of initiating and getting party-line conversation, particular conversation and signaling. Possibly rack-mounted, wall-mounted or portable.
Wall Mount Station:
Fixed-position intercom station along with built-in loudspeaker. May have flush-mounted microphone, telephone-style handset or hand-held push to talk microphone.
Portable intercom station worn on the belt as an interruptible feedback (IFB) along an earpiece worn through talent.
Permanent or portable telephone-style link to an intercom station. Holds an earpiece and a push both to talk microphone.
Portable intercom connection through a belt pack to one or both ears through headphones with integrated microphone on a boom arm. Associated to a belt pack.
An audible and/or visual alert at an intercom station, denoting that someone at another station desired to initiate a conversation.
Used to feed power to all of the units. Often incorporated into the design of the base station.
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