Hi
Here I am not using any RS232 or RS485 protocols. I will transmit analog square signal of -12 to +12V and also receive the -12V to +12V signal. So I have a circuit which can transmit and receive the signal individually. 2 circuits are constructed the schematic is attached below.
The process is First setup-1 will transmit the signal for T1 time period then after T1 period it will not transmit it will be in idle state i.e. 0V for T2 time period, in this T2 time period, the setup receive the signal and transmit the signal to setup-1 for T1 period in T2 period only. After that the setup again transmit the signal for T1 period and Setup transmit the signal for T3 period .. so on it will continue.
In this testing i have faced a problem that when both setups are connected each other and while doing the above testing process , the oscilloscope was connected between 2 setups for observing the voltage.. here the voltage which should be -12V to +12V it was dropped to -6 to +6V ..
can anyone please suggest any solution to this issue i.e, voltage dropping issue
Mod:rotated your image.E
Here I am not using any RS232 or RS485 protocols. I will transmit analog square signal of -12 to +12V and also receive the -12V to +12V signal. So I have a circuit which can transmit and receive the signal individually. 2 circuits are constructed the schematic is attached below.
The process is First setup-1 will transmit the signal for T1 time period then after T1 period it will not transmit it will be in idle state i.e. 0V for T2 time period, in this T2 time period, the setup receive the signal and transmit the signal to setup-1 for T1 period in T2 period only. After that the setup again transmit the signal for T1 period and Setup transmit the signal for T3 period .. so on it will continue.
In this testing i have faced a problem that when both setups are connected each other and while doing the above testing process , the oscilloscope was connected between 2 setups for observing the voltage.. here the voltage which should be -12V to +12V it was dropped to -6 to +6V ..
can anyone please suggest any solution to this issue i.e, voltage dropping issue
Mod:rotated your image.E
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