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[[Файл:AxWB5.png|thumb|400px|Equivalent circuit of A1-A4 channels]] | [[Файл:AxWB5.png|thumb|400px|Equivalent circuit of A1-A4 channels]] | ||
Multifunctional channels consist of parallel operating input and output stages. | |||
The output stage consists of a switching Tx element . The Tx key closes the outputs to the ground. Under control of the controller logic schemes , the Tx switch can be in 2 states: | The output stage consists of a switching Tx element . The Tx key closes the outputs to the ground. Under control of the controller logic schemes , the Tx switch can be in 2 states: |
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