RS-232 Pin-outs
| Pin | Name | Abbreviation |
|---|---|---|
|
1 |
Frame Ground |
FG |
|
2 |
Transmit Data |
TxD |
|
3 |
Receive Data |
RxD |
|
4 |
Request To Send |
RTS |
|
5 |
Clear to Send |
CTS |
|
6 |
Data Set Ready |
DSR |
|
7 |
Signal Ground |
GND |
|
8 |
Carrier Detect |
CD or DCD |
|
20 |
Data Terminal Read |
DTR |
|
22 |
Ring Indicator |
RI |
| Pin | Name | Abbreviation |
|---|---|---|
|
1 |
Carrier Detect |
CD or DCD |
|
2 |
Receive Data |
RxD |
|
3 |
Transmit Data |
TxD |
|
4 |
Data Terminal Ready |
DTR |
|
5 |
Signal Ground |
GND |
|
6 |
Data Set Ready |
DSR |
|
7 |
Request To Send |
RTS |
|
8 |
Clear To Send |
CTS |
|
9 |
Ring Indicator |
RI |