Type 3: To connect Smartio C168 Series to a DTE with
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
Opt8A/S
PC COM2 port, Serial Printer, Terminal, or any DTE Device
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 | |
Opt8B/C
PC COM2 port, Serial Printer, Terminal, or any DTE Device
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 |