Multiple channels of simultaneous conversations can be carried over additional conductors within a cable or by frequency- or time-division multiplexing in the analogue domain.
•
Digital intercoms use Category 5 cable and relay information back and forth in data packets using the Internet protocol architecture.
•
Digital intercom stations can be connected using Cat 5 cable and can even use existing computer networks as a means of interfacing distant parties.
Intercom |
NuTone is an American company that manufactures products mainly for residential use, including doorbells, intercom systems, indoor air quality products, ventilation systems, range hoods, ceiling fans, built-in electric heaters, medicine cabinets, ironing equipment, and home theater systems.
The System 1300 intercom went on to become the industry standard for U.S. airports to have on their trucks because of the practicality and safety factors.
In Kieślowski's A Short Film About Love, when Magda and Tomek speak to each other through a glass intercom in the local post office, the reflection of the characters' faces in the glass effectively creates the same effect as just described in Citizen Kane.
Originally, the RV-12 was equipped with the Dynon FlightDEK-D180, the Garmin GPS 496, Garmin SL-40, Garmin GTX-327 Transponder, and the Flightcom 403 intercom.