C H A P T E R 2
FEATURES
This section covers:
Using the communication port
Starting the UPS on battery
Communication Port
Powerware Corporation offers an accessory interface kit that allows you to connect many types of computer systems to the UPS communication port. For specific information on Powerware Corporation interface kits, call your service representative.
Pinouts
Contacts consist of open collector circuits capable of switching up to +30 Vdc, 6 mA resistive load.
Table 1. Communication Port Pin Assignment
Pin | Signal Type | Function |
|
|
|
|
|
1 | +12 Vdc signal held for 5 seconds on this pin shuts the UPS down |
| |
|
| 120 seconds later. The UPS restarts after 15 seconds when utility |
|
|
| power returns. |
|
|
|
|
|
2 | Not Used | Not Used |
|
|
|
|
|
3 | Normally Open | A normally open contact that closes 15 seconds (pulls to |
|
|
| Common) after the UPS switches to battery power. |
|
|
|
|
|
4 | Common | The signal ground for all signal pins. |
|
|
|
|
|
5 | Normally Open | A normally open contact that closes (pulls to Common) during a |
|
|
| Low Battery Alarm. |
|
|
|
|
|
6 | Normally Closed | A normally closed contact that opens (releases from Common) |
|
|
| during a Low Battery Alarm. This tells some shutdown software |
|
|
| when to start a computer shutdown. |
|
|
|
|
|
7 | Not Used | Not Used |
|
|
|
|
|
8 | Normally Closed | A normally closed contact that opens 15 seconds (releases from |
|
|
| Common) after the UPS switches to battery power. |
|
|
|
|
|
9 | Not Used | Not Used |
|
|
| ||
Powerware® 3110 User's Guide 05147486 B (English) Uncontrolled Copy | 5 | ||