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RS232 male to female cable, this one is corss link the pins 2-3 & 3-2
Attention this:The 2th pin connect to 3rd pin of the other end
RS232 female to male cable, this one is corss link the pins 2-3 & 3-2
GaoLx RS-232 DB9 9pin Cross link 2-3 3-2 Male to female connect cable RS232 DB9pin converter wire - B06Y1DJPHJ