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IPEX
(IP Electronix)
PH232Ex1:
User’s Manual
Page 8 of 23
Doc No. : PH232Ex1-UM-001
14 January 2014
7.3)
Simple Null Modem Connection (to PC, PLC, … Without Hardware Handshaking)
PC,PLC or other DTE devices
DB9-Male Pin Number
PH232Ex1 Port #1 as DTE
DB9-Male Pin Number
Pin 3: TxD
(Output)
Pin 2: RxD
(Input)
Pin 2: RxD
(Input)
Pin 3: TxD
(Output)
Pin 5: GND
(Ground)
Pin 5: GND
(Ground)
(Simple Null Modem Cable (Without Hardware Handshaking))
