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Connection Cable and Cable Wiring
Smartio C104H/PCI Series User’s Manual 5-3
PC COM2 port, Serial Printer,
Terminal, or any DTE Device
Opt4D
C104H/PCI DTE Device
DB9 Male DB25 Male
RxD 2 2 TxD
TxD 3 3 RxD
CTS 8 4 RTS
RTS 7 5 CTS
DTR 4 6 DSR
DSR 6 20 DTR
GND 5 7 GND
DCD 1 8 DCD
Type 2: To connect C104H/PCI Series to a DCE device.
Modem,
or any DCE Device
Opt4C
Straight-through Cable
C104H/PCI DCE Device
DB25 Male DB25 Female
TxD 2 2 RxD
RxD 3 3 TxD
RTS 4 4 CTS
CTS 5 5 RTS
DSR 6 6 DTR
DTR 20 20 DSR
GND 7 7 GND
DCD 8 8 DCD