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| Table 12. Rectifier Indicators |
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REF # | DESIGNATION | DEVICE | FUNCTIONAL DESCRIPTION |
1 | (Unmarked) | Green LED | AC OK. Lights when AC power is present |
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2 | (Unmarked) | Green LED | DC OK. Lights when rectifier is limiting current |
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3 | (Unmarked) | Red LED | Over Voltage Protection. Lights when rectifier has failed |
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4 | (Unmarked) | Red LED | Over Temperature Protection. Lights when over temperature compen- |
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| sation circuit is active |
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The Low Voltage Disconnect (LVD) Unit (Figure 19) disconnects power automatically when the RAN voltage falls below a specified minimum. The LVD unit also manages the backup batteries (extended or glitch).
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| 1 | OK LED |
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| 2 | MAJOR FAULT LED | |
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| 3 | MINOR FAULT LED | |
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| LVD ON LED 5 |
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| 4 |
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| 6 |
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| Figure 19. Low Voltage Disconnect Unit |
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| Table 13. LVD Indicators |
REF # | DESIGNATION | DEVICE |
| FUNCTIONAL DESCRIPTION |
1 | OK | Green LED | Okay. Lights when power system is functioning correctly | |
2 | MAJ | Red LED | Major Fault. Lights when a major fault exists | |
3 | MIN | Yellow LED | Minor Fault. Lights when a minor fault exists | |
4 | (Unmarked) | Connector for cable 1001476P001 to the RECT (RJ45 connector) | ||
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| port on the STF module |
5 | LVD | Red LED | Low Voltage Disconnect. Lights when switch has closed due to low | |
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| voltage |
6 | DISC | Switch |
| Disconnect. Pressing this switch disconnects the backup batteries |
Page 24
© 2007, ADC Telecommunications, Inc.