9 pin D-SUB MALE connector to the UPS |
DB-9 Male
(UPS end) |
DB-9 Female
(PC end) |
Signal Name |
| N/C |
1 |
N/A |
| 2 |
2 |
Received Data |
| 3 |
3 |
Transmitted Data |
| 1 |
4 |
Data Terminal Ready |
| 9 |
5 |
Signal Ground |
| N/C |
6 |
N/A |
| N/C |
7 |
N/A |
| N/C |
8 |
N/A |
| N/C |
9 |
N/A |
| 
9 pin D-SUB FEMALE connector to the PC |
