At the entry to an apartment block an intercom system enables visitors to communicate with the occupants. Names and apartment numbers of the occupants are included on an endless roll behind a window in the intercom unit. This permits availability of a standardised unit however many occupants there...
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joint video intercom camera and a plurality of external cameras for performing a control function for connection with said video phone; Common entrance intercom cameras for photographing visitors arriving at common front and, playgrounds, etc... 정월중 被引量: 0发表: 2004年 On Field Confirmat...
Support two-way hand microphone intercom Built-in WiFi, 5.8G high-speed bandwidth Dual TF card storage, single card supports up to 1T Support Beidou/GPS dual-mode positioning Support RS232, RS485, alarm and switch output Industry application...
5-channel audio input; 4-channel AV-IN interface; 1-channel voice intercom interface; 1-channel handle interface Recording search and playback Search and play back videos based on the channel, recording type, or time. Recording method Simultaneously record the ACC...
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