Is the directions right???
(At the UPS)
9 PIN D-SUB ??? at the UPS.
| Pin | Description |
|---|---|
| 1 | Unused |
| 2 | Battery power |
| 3 | Unused |
| 4 | Common (same as 7) |
| 5 | Low battery |
| 6 | RS-232 level shutdown |
| 7 | Common (same as 4) |
| 8 | Ground level shutdown (A500 and above, reserved on <A500) |
| 9 | Reserved |
Pins 2 and 5 are connected to Common when they are true.
On pin 6, an rs-232 high level (>9V) will shutdown, when
running off the battery.
On pin 8, shorting to ground will shutdown.