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(cable rs232 serial modem)


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 : cable, rs232, serial, modem,  (  )
Subj : p y yp ( pp p) 9pin p 25pin COM- p COM p. ͻ ͹ ͻ ͻ 9 . 25 . ͹ ͹ 1 ________________ 8 ____________ ____________ 2 ________________ 3 ____________ ____________ 3 ________________ 2 ____________ ____________ 4 ________________ 20 ____________ ____________ 5 ________________ 7 ____________ ____________ 6 ________________ 6 ____________ ____________ 7 ________________ 4 ____________ ____________ 8 ________________ 5 ____________ ____________ 9 ________________ 22 ͼ ͼ ͼ ͻ ( ) COM- ͹ ͻ ͻ 1 2 _______________________ _______________________ 25 9 . 25 9 ͹ ͹ ________________ _______________________ _______________________ SG 7 5 ________________ 7 5 SG _______________________ _______________________ TxD 2 3 ________________ 3 2 RxD _______________________ _______________________ RxD 3 2 ________________ 2 3 TxD _______________________ _______________________ RTS 4 7 ___ ___ 4 7 RTS _______________________ _______________________ CTS 5 8 ___ ___ 5 8 CTS _______________________ _______________________ DSR 6 6 ___ ___ 6 6 DSR _______________________ _______________________ DTR 20 4 ___ ___ 20 4 DTR _______________________ _______________________ DCD 8 1 ___ ___ 8 1 DCD _______________________ _______________________ 22 9 22 9 ͼ ͼ ͼ ͻ ( 25pin LPT ) ͹ 1 2 ͹ 2 15 __________________________________________ 3 13 __________________________________________ 4 12 __________________________________________ 5 10 __________________________________________ 6 11 __________________________________________ 10 5 __________________________________________ 11 6 __________________________________________ 12 4 __________________________________________ 13 3 __________________________________________ 15 2 __________________________________________ 17 17 __________________________________________ 18 18 _______________________________ 19 19 _______________________________ 20 20 _______________________________ 21 21 GND _______________________________ 22 22 _______________________________ 23 23 _______________________________ 24 24 _______________________________ 25 25 ͼ

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