Null Modem Adapter RS232 DB-25 Male to DB-25 Female
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null modem cable Archives » NetworkUstad
CC2046-FF - DB9 Female to DB25 Female RS232 Serial Null Modem Adaptor
RS232 connector pin assignment
Epson DB9 Female to DB25 Male Serial Null Modem Cable - 6', Beige
Null-Modem Serial Cables
Amazon.com: KENTEK 25 Feet FT DB9 Female to DB25 Male Null Modem Serial Printer Cable Adapter Cord 28 AWG F/M Molded D-SUB RS-232 Crossover 9 to 25 Pin for PC Mac Serial
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RS232 serial cable pinout information - Lammert Bies