User`s manual

Smartio C104H/HS User’s Manual 5-1

5 Connection Cable and Cable Wiring

In serial data communications, the term DTE is for Data Terminal Equipment like

PC COM1/2, serial printer and terminal. The term

DCE is for Data Communication

Equipment like modem.

RS-232 Cable Wiring

The followings are pin assignments for various connection options:

Smartio C104 Series

DB25 Male (Opt 4C)

2 TxD

3 RxD

4 RTS

5 CTS

6 DSR

7 GND

8 DCD

20 DTR

Smartio C104 Series

DB9 Male (Opt 4D)

1 DCD

2 RxD

3 TxD

4 DTR

5 GND

6 DSR

7 RTS

8 CTS