Adding a serial port
Thecus made this easy for us by including a 9-pin header on the S-ATA board. The pinout is the same as used on old AT-computers for the serial connection:
1 .. 2
3 .. 4
5 .. 6 Onboard header
7 .. 8
9 .
___
/ .|1
/.6 |
| .|2
| .7 |
| .|3 Standard serial port pinout
| .8 |
| .|4
| .9 |
\ .|5
\___|
The connection is simple:
1 -> 1
2 -> 2
3 -> 3
4 -> 4
5 -> 5
6 -> 6
7 -> 7
8 -> 8
9 -> 9
You only need to connect pin 2 (RX), pin 3 (TX) and pin 5 (GND), but it doesn't hurt to connect the other ones aswell.
Pictures:
On later boards the 9-pin header is not factory installed, in that case you have to solder it in yourself.