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IPEX
(IP Electronix)
PH232T485Y14
:
User’s Manual
Page 12 of 17
Doc No.: PH232T485Y14-UM-001
16 January 2022
12.
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)
