ww
w
.ip
el
ec
tr
on
ix
.c
om
IPEX
(IP Electronix)
PH232Ux2
:
User’s Manual
Page 25 of 27
Doc No. : PH232Ux2-UM-001
30 November 2013
11.2)
Null Modem Connection (to PC, PLC, RTU, A-380, PH232Ex1, PH232Ex2 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)
