Pin | Port | Name | Dir | Description |
---|---|---|---|---|
1 | n/c | Not connected | ||
2 | 1 | TXD | ![]() |
Transmit Data (RS232) |
3 | 1 | RXD | ![]() |
Receive Data |
4 | 1 | RTS | ![]() |
Ready To Send |
5 | 1 | CTS | ![]() |
Clear To Send |
6 | 1 | DSR | ![]() |
Data Set Ready |
7 | 1+2 | GND | - | Ground |
8 | 1 | DCD | ![]() |
Data Carrier Detect |
9 | n/c | Not connected | ||
10 | n/c | Not connected | ||
11 | 2 | DTR | ![]() |
Data Terminal Ready |
12 | 2 | DCD | ![]() |
Data Carrier Detect |
13 | 2 | CTS | ![]() |
Clear To Send |
14 | 2 | TXD | ![]() |
Transmit Data |
15 | n/c | Not connected | ||
16 | 2 | RXD | ![]() |
Receive Data |
17 | n/c | Not connected | ||
18 | n/c | Not connected | ||
19 | 2 | RTS | ![]() |
Ready To Send |
20 | 1 | DTR | ![]() |
Data Terminal Ready |
21 | n/c | Not connected | ||
22 | 1 | RI | ![]() |
Ring Indicator |
23 | 2 | DSR | ![]() |
Data Set Ready |
24 | n/c | Not connected | ||
25 | 2 | RI | ![]() |
Ring Indicator |
Note: Direction is DTE (Computer) relative DCE (Modem).