The products produced by non-visual intercom system manufacturers in Fujian save money compared to traditional non-visual intercom systems, because the unit host and the household extension and the unit host and the center exchange only use a single RF line, whether it is inside the building Network or networking will save a lot of wire. While saving the wire, the wiring becomes simple, while saving the labor cost and the construction period. From the floor wiring diagram, it can be seen that the structure of the common cable network is very simple. There is no complicated floor assignment or isolator between the unit host and the user. There is only one RF line and the necessary passive splitters. The power supply can be inserted into the trunk signal cable at any level.
Non-visual intercom system video baseband transmission, low-frequency 10-50 Hz and high-frequency 6M, high-low frequency difference of more than ten million - several hundred thousand times, due to coaxial cable for high and low frequency attenuation of signal transmission, thus Long-distance transmission causes excessive signal (frequency distortion). The RF transmission is to modulate the signal on the carrier of high frequency (tens to hundreds of megahertz), the signal transmission can only attenuate the amplitude of the carrier, and the spectral characteristic of the image content is no longer affected by the transmission attenuation. Intercom system manufacturers to ensure long-distance transmission quality.
The non-visual intercom system of non-visual intercom system manufacturers in Fujian uses a radio frequency cable to transmit audio, video, data, and power. The connection between devices uses a cold-pressed F-connector with a cable TV system. No manual welding is required during construction. , can guarantee the connection quality very well. This greatly reduces the use of wire rods, effectively reduces the difficulty of construction, commissioning and maintenance, saves labor, shortens the construction period, and reduces various costs.
Non-visual intercom system switches can automatically switch signals according to communication instructions. If the terminal (user extension, unit gate or community gateway) calls the center intercom, the switch automatically switches the signal to the connection between the host and the terminal. If the terminal and the terminal call. The switch designed by Fujian non-visual intercom system manufacturers does not need to intervene in the central duty room, and automatically connects the calling end and the called end (for example, the cell-site door-to-door calling a certain household extension). The non-visual intercom system center host can talk to any terminal; intercommunication between any terminal can be realized. If you need to publish notices such as water stoppages, power outages, etc. Only need to use the computer (plus video card) to output the video or video output from the DVD (informed CD) to the text input. Information can be published to all users, and can also be published to some or all users. After the resident extension gets the instruction to release the information, the information light will flash continuously, and the non-visual intercom system will continue until the user views the information. If the trunk line is busy, it will not affect the talkback between each unit and the extension.
Non-visual intercom system video baseband transmission, low-frequency 10-50 Hz and high-frequency 6M, high-low frequency difference of more than ten million - several hundred thousand times, due to coaxial cable for high and low frequency attenuation of signal transmission, thus Long-distance transmission causes excessive signal (frequency distortion). The RF transmission is to modulate the signal on the carrier of high frequency (tens to hundreds of megahertz), the signal transmission can only attenuate the amplitude of the carrier, and the spectral characteristic of the image content is no longer affected by the transmission attenuation. Intercom system manufacturers to ensure long-distance transmission quality.
The non-visual intercom system of non-visual intercom system manufacturers in Fujian uses a radio frequency cable to transmit audio, video, data, and power. The connection between devices uses a cold-pressed F-connector with a cable TV system. No manual welding is required during construction. , can guarantee the connection quality very well. This greatly reduces the use of wire rods, effectively reduces the difficulty of construction, commissioning and maintenance, saves labor, shortens the construction period, and reduces various costs.
Non-visual intercom system switches can automatically switch signals according to communication instructions. If the terminal (user extension, unit gate or community gateway) calls the center intercom, the switch automatically switches the signal to the connection between the host and the terminal. If the terminal and the terminal call. The switch designed by Fujian non-visual intercom system manufacturers does not need to intervene in the central duty room, and automatically connects the calling end and the called end (for example, the cell-site door-to-door calling a certain household extension). The non-visual intercom system center host can talk to any terminal; intercommunication between any terminal can be realized. If you need to publish notices such as water stoppages, power outages, etc. Only need to use the computer (plus video card) to output the video or video output from the DVD (informed CD) to the text input. Information can be published to all users, and can also be published to some or all users. After the resident extension gets the instruction to release the information, the information light will flash continuously, and the non-visual intercom system will continue until the user views the information. If the trunk line is busy, it will not affect the talkback between each unit and the extension.
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