Rs232

RS-232 pinout

DB-9 DB-25 Name 8P8C Dir Color 1 DCD 8 (бел) in black 2 RXD 6 (желт) in brown 3 TXD 3 (черн) out red 4 DTR 2 (ор) out orange 5 GND 5 (зел) pow yellow 6 DSR 1 (син) in green 7 RTS 4 (крас) out blue 8 CTS 7 (кор) in purple 9 RI in white Cisco cable Name 8P8C Color DB-9f CTS 1 Black 8 DSR 2 Brown 6 RXD 3 Red 2 GND 4 Orange 5 GND 5 Yellow 5 TXD 6 Green 3 DTR 7 Blue 4 RTS 8 Gray 7