Communication
Communications Mode Reference Chart
The following chart defines the UPS serial port contacts. Serial communication is not available with 3Com and AS/400 network configurations. Use only the applicable pins for the selected communication mode; otherwise, interference problems may occur.
Communication Mode | Function | Signal Name | Pin No. | True Condition |
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Serial | Data to UPS | RS232 TxD | 2 | N/A | ||
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| Data from UPS | RS232 RxD | 3 | N/A | ||
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| Signal Ground |
| 7 |
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Novell | Battery On | ON.AC | 14/16 | Open | ||
(Default) |
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Low Battery | TWO.MIN | 23/24 | Closed | |||
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| Signal Ground |
| 7/15/25 |
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Novell | Battery On | ON.AC | 14/16 | Closed | ||
(Custom) |
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Low Battery | TWO.MIN | 23/24 | Closed | |||
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| Signal Ground |
| 7/15/25 |
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3Com | Shutdown (Remote) | SHUT.DOWN | 2 | Positive Voltage | ||
(Default) |
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Low Battery | LOW.BATT | 9 | Positive Voltage | |||
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| Battery On | PWR.FAIL | 10 | Positive Voltage | ||
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| Signal Ground |
| 7 |
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AS/400 | UPS Available | UPS Available | 11/13 | Closed | ||
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| Battery On | Utility Failure | 14/16 | Closed | ||
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| Bypass | UPS Offline | 17/19 | Closed | ||
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| Low Battery | Low Battery | 23/24 | Closed | ||
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| Signal Ground |
| 12/15/18/25 |
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NOTE Pin numbers separated by a forward slash ( / ) are connected together internally.
Powerware® 9 Prestige Series User’s Guide (4500/6000 VA) S Rev H www.powerware.com | 67 |