Operation and Configuration
When the communication cable is installed, power management software can exchange data with the UPS. The software polls the UPS for detailed information on the status of the power environment. If a power emergency occurs, the software initiates the saving of all data and an orderly shutdown of the equipment.
6 7 8 9
| 1 | 2 | 3 | 4 | 5 |
| Figure 8. Communication Port | ||||
Table 2. Communication Port Configuration |
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Pin Number | Signal Type |
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1 | Input: |
| Conditional Power Off: In absence of AC power, output is | ||
| seconds |
| turned off until normal AC power returns | ||
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2Output: Open closing to logic ground pin 4 Impending Low Battery: Indicates the battery has less than 2 to 5 minutes of backup time left
3 | Output: Open closing to logic ground pin 4 | AC Input Failure: Indicates absence of normal AC input |
4 | Signal Return | Logic Ground |
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5 | Output: | Impending Low Battery: Indicates the battery has less than 2 |
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| to 5 minutes of backup time left |
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6 | Output: | AC Input Failure: Indicates absence of normal AC input |
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7 | Not Used | Not Used |
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8 | Not Used | Not Used |
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9 | Chassis Ground (connected to pin 4) | Chassis Ground |
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12 | Powerware® 3115 User’s Guide S www.powerware.com |