It is recommended 9L0-509 not to use a passive Y cable. Such a cable overloads the transmitters at the DTE and DCE, which might result in the destruction of the transmitters. The RS-233 standard requires that transmitters are short-circuit safe. Pass4sure 9L0-402 However, modern, highly integrated equipment might no longer be compliant to that particular aspect of the standard.
Often, the line going to the analyzer is also just a serial line, and the analyzer is a PC with a serial interface 9L0-509 and some display software. The disadvantage of such a simple Y cable solutions is that it only supports half-duplex communication. That is, only one site (DTE or DCE) can talk at any time. The reason for this is that the two TX lines from the DTE and DCE are combined into one TX line going to the analyser. If 9L0-402 Exam the DTE and the DCE both send at the same time, their signals get mixed up on the third line going to the analyzer, and the analyzer probably doesn't see any decodable signal at all.
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