Moxa Technologies C104H/PCI Series - Manual (Page 49)

Smartio C104H/PCI Series User’s Manual 5-1
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C Co on nn ne ec cttiio on n C Ca ab blle e a an nd d C Ca ab blle e W Wiirriin ng g
This chapter will illustrate the possible connections and cable wiring for C104H/PCI
Series board.
In serial data communications, the term DTE is Data Terminal Equipment, such as
PC COM1/2, serial printers and terminals. The term DCE is Data Communication
Equipment, like modems.
RS-232 Cable Wiring
The followings are pin assignments for two connection cables for C104H/PCI Series
board:
C104H/PCI DB25 Male (Opt4C)
2 TxD
3 RxD
4 RTS
5 CTS
6 DSR
7 GND
8 DCD
20 DTR