As seen from above on motherboard:
Pin Number |
Pin Name |
Pin Number |
Pin Name |
---|---|---|---|
1 | +12 | 2 | -12 |
3 | DCD2 | 4 | DSR2 |
5 | RXD2 | 6 | RTS2 |
7 | TXD2 | 8 | CTS2 |
9 | DTR2 | 10 | RI2 |
11 | Gnd | 12 | COMM_B_DETECT |
13 | EXT_RI2 | 14 | +5V |
15 | NC | 16 | Gnd |
COMM_B_DETECT: Connect to GND to enable COM2 in BIOS