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Re: aldl cable



At 12:28 PM 9/2/2000 -0400, you wrote:
this is wierd.. when there is power to the max232 anything i send gets
relayed right back.. even with it dissconnected from the aldl cable,
without power nothing?? whats going on..?? srgg


Because the ECM communicates on a single line for RX and TX, the TX is coupled right back to the TX line on the chip thru the transistors.


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