How to distinguish hdmi splitter and function splitter as well as hdmi switch

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Hdmi splitter: Its function is used in wireline devices, distribution, tap the DC resistance of the mouth of the core and the metal housing of them are short-circuited to zero! But the DC resistance of centralized power hdmi splitter best buy dedicated "IN" and "OUT" port splitter metal core and shell is infinite. Hdmi splitter has 2,3,4,5 points, respectively, "IN" port and a 2,3,4,5 a "OUT" port, the first two are more often used in the end of the wireline; Function Splitter: Is a TV in the "most commonly used for cable TV in the front room," is used for multi-machine use a pot one end, there is 2,4,6,8,10,12 points splitters, usually 6 points above with line splitters are put. DC resistance of the port hdmi splitters core splitter and power metal housing is infinite! "If the head for dual-polarized, N loom can simultaneously receive the same polarization signal." Hdmi switch: Hdmi switch have 2,3,4 points, respectively, "IN" and "OUT" port and 2,3,4 each one branch mouth "BR mouth"; tap there is an indicator: There 6,8,10 , 12,16,18,20DB "db" argument, meaning that each branch decibels BR port is attenuated, the smaller the number the greater the BR port decibel output signal. Hdmi splitter best buy isolation does not tap the isolation is good! Not interchangeable between splitters and splitter "tap"! Unless modified! This artical is provided by ,Please don't copy.