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IPEX
(IP Electronix)
PH232Ex1:
User’s Manual
Page 7 of 23
Doc No. : PH232Ex1-UM-001
14 January 2014
7.2)
Null Modem Connection (to PC, PLC, RTU, A-380, or any other DTE devices)
PC,PLC or other DTE devices
DB9-Male Pin Number
PH232Ex1 Port #1 as DTE
DB9-Male Pin Number
Pin 7: RTS
(Output)
Pin 1: DCD
(Input)
Pin 3: TxD
(Output)
Pin 2: RxD
(Input)
Pin 2: RxD
(Input)
Pin 3: TxD
(Output)
Pin 6: DSR
(Input)
Pin 4: DTR
(Output)
Pin 5: GND
(Ground)
Pin 5: GND
(Ground)
Pin 4: DTR
(Output)
Pin 6: DSR
(Input)
Pin 8: CTS
(Input)
Pin 7: RTS
(Output)
Pin 7: RTS
(Output)
Pin 8: CTS
(Input)
Pin 1: DCD
(Input)
Pin 7: RTS
(Output)
(Null Modem Cable)
