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IPEX
(IP Electronix)
PH232Y12
:
User’s Manual
Page 9 of 12
Doc No.: PH232Y12-UM-001
16 January 2022
10.
RS-232 CONNECTING METHODS
-
Modem Connection (to a Modem, any DCE devices)
Modem or other DCE devices
DB9-Female Pin Number
DTE
DB9-Male Pin Number
Pin 1: DCD
(Output)
Pin 1: DCD
(Input)
Pin 2: RxD
(Output)
Pin 2: RxD
(Input)
Pin 3: TxD
(Input)
Pin 3: TxD
(Output)
Pin 4: DTR
(Input)
Pin 4: DTR
(Output)
Pin 5: GND
(Ground)
Pin 5: GND
(Ground)
Pin 6: DSR
(Output)
Pin 6: DSR
(Input)
Pin 7: RTS
(Input)
Pin 7: RTS
(Output)
Pin 8: CTS
(Output)
Pin 8: CTS
(Input)
Pin 9: RI (Output)
Pin 9: RI (Input)
(Modem Cable)
