|
A wireless intercom is a telecommunications device that enables voice communication without the need to run copper wires between intercom stations. A wired intercom system may incorporate wireless elements. There are many types of wireless intercom systems on the market. Most wireless intercom systems communicate by radio waves using one of the frequencies allotted by various government agencies. Some wireless intercom systems communicate using the 802.11 standard.〔http://www.nucleusintercom.com〕 There are also systems that advertise themselves as wireless, but communicate over existing building AC electrical wiring. == Basic terms == *Station - A wireless intercom unit. *Outdoor Intercom - This is an intercom that can be placed by a building's doors and it operates like a doorbell, but people inside can talk to the visitor. *Channels - Some wireless intercom systems have more than one channel so private conversations can occur between groups of intercoms. *Range - This is the maximum range an intercom will communicate under ideal conditions. Ideal conditions mean no obstructions between units. *Monitor - Usually this means the ability to listen to what is happening at a wireless intercom unit. *Conference - The ability to talk to multiple intercom units at once. *Paging - Paging function enables you to broadcast to all the stations in the location. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Wireless intercom」の詳細全文を読む スポンサード リンク
|