Moxa-technologies Moxa Smartio C168H Manuel d'utilisateur télécharger pdf (Page 58)

5-6 Smartio C168H/PCI User’s Manual

Type 3: To connect SSmmaarrttiioo C168H/PCI to a DTE with 3-pin wiring.

If the “Hardware flow control” feature is set to “ON”, you must loop

back (or short) the RTS with CTS and DSR with DTR, DCD on MOXA

site, indicated in dash-lines of the following diagrams. If the “Hardware

flow control” feature is set to “OFF”, you could just leave RTS, CTS,

DSR, DTR, DCD open, ignoring the connection indicated in dash-lines.

PC COM2 port, Serial Printer,

Terminal, or any DTE Device

Opt8A/S

Opt8A/S DTE Device

DB25 Female DB25 Male

RxD 2 2 TxD

TxD 3 3 RxD

GND 7 7 GND

RTS 5 4 RTS

CTS 4 5 CTS

DTR 20 6 DTR

DST 6 20 DSR

DCD 8 8 DCD

PC COM2 port, Serial Printer,

Terminal, or any DTE Device

Opt8B/C

Opt8B/C DTE Device

DB25 Male DB25 Male

TxD 2 2 TxD

RxD 3 3 RxD

GND 7 7 GND

RTS 4 4 RTS

CTS 5 5 CTS

DSR 6 6 DTR

DTR 20 20 DSR

DCD 8 8 DCD

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 73 74

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Moxa-technologies Moxa Smartio C168H Manuel d'utilisateur Page 58