5Communication
Communications Mode Reference Chart
The following chart defines the UPS serial port contacts Serial communication is not available with Com and AS/00 network configurations Use only the applicable pins for the selected communication mode; otherwise, interference problems may occur
Communication | Function | Signal Name | Pin No. | True Condition |
Mode |
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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 |
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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 |
Lucent Technologies |
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Default | 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 |
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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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iNOTE Pin numbers separated by a forward slash ( / ) are connected together internally.
52 | Lucent Technologies Model 3000 UPS Operators Manual 167:405:119 Issue 3 |