隨着模擬攝像機被網絡攝像機以及高清同軸攝像機所取代，使用量比較大的視頻光端機也逐漸被光纖收發器、POE交換機、網絡交換機等網絡光通信設備所取代。目前市場上音頻、數據、開關量、電話以及對講等信號依然可通過光端機進行傳輸。

幾種常見的光端機應用方案

視頻光端機：目前市場需求越來越少，使用的多為老項目維護用。

音頻光端機：主要用於廣播和監聽傳輸層，通過光纖可保證音色不失真並延長傳輸距離。

電話光端機：延長電話傳輸距離。

以太網光端機：隨着網絡數字高清市場崛起，該產品已越來越少使用。

數據光端機：可以傳輸雙向485報警信號，或雙向232數據信號。

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Several common optical transceiver applications

Video optical transceiver: At present, there is less and less market demand, and it is mostly used for maintenance of old projects.

Audio optical transceiver: mainly used for broadcasting and monitoring transmission layer. Through optical fiber, it can ensure that the sound is not distorted and extend the transmission distance.

Telephone Optical: to extend the telephone transmission distance.

Ethernet optical transceiver: With the rise of the network digital high-definition market, this product has been used less and less.

Data optical transceiver: can transmit bidirectional 485 alarm signal, or bidirectional 232 data signal.

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