what cable do i need to flash my dm 500 rs232 or null whats the diff thanks
whats the diff 232 cable nullcable
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null modem cable.
the pinouts are diffrent on these cables,
null modem pinout:

rs232 are wired pin 1:1, 2:2 etc
Last edited by barrowmanandrew; 28 July, 2011, 11:03. -
serial cable has one end male one end female i think you need female both ends
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