4.4Troubleshooting Matrix
If directed in Section 4.3 to consult a troubleshooting matrix, see Table 1 below.
Note: ClearGain PDU DIP switches must be in the down position for each active MHU!
Note: ClearGain PDU input voltage must be in the range
Table 1. Troubleshooting Matrix
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| GREEN/YELLOW | RED GENERAL | |
PARAMETER | SPECIFICATION | EXPLANATION | OK LED | ALARM LED | |
Electronic Load |
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Each Path OFF | < 180 mA | Fail | OFF | ON | |
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Each Path ON | 180 – 220 mA | OK | GREEN | OFF | |
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Total Fail | 370 – 400 mA | Fail | OFF | ON | |
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Short Circuit | 1.5 A ± 10% | Fail | GREEN | ON | |
Protection |
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Short state of MHU path does not affect other path. After generating Green alarm, | |||||
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| the short state is held for ten seconds then Red alarm is generated by the PDU. | ||||
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Circuit Fluctuation | Min 180 mA | One path failed. | YELLOW | ON | |
| Max 380 mA |
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Input Voltage | OK | GREEN | OFF | ||
| +20 to +56 VDC |
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Output Voltage | 15 V, 4% | Total failure. | OFF | ON | |
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© 2006, ADC Telecommunications, Inc.