Power Supplies
7-33
PS
19 D
C
-D
Po
wer Supp
ly Un
it wi
th D
upl
icati
on
7
Power supply failure generally results in the loss of one or more output voltages.
However, protection circuitry in the power supply regulator circuitry may shut down
a regulator because of a current overload caused by an external fault.
The red
Alarm
indicator on the front panel of the PS19 DC-D lights when any of the
output voltages are outside of specification. This may be caused by internal or external
faults. The technician must isolate the problem and replace the faulty unit when
necessary, see below.
The red Alarm indicator illuminates if any voltage supplied by the power
supply is outside of specification. This could be caused by an internal or
external fault. If the alarm indicator illuminates in a replaced power supply,
the fault is not within the unit.
All maintenance activities are to be carried out by a qualified service technician.
The red
Alarm
indicator can be activated by malfunctions in the backplane, the power
supply, in any of the cards inserted into the cage, or in any of the above in a connected
cage.
For Redundant Peripheral Power Supply Units
(i.e. one PS19 DC-D installed on each of two adjacent shelves
and
connected via a
cable on the backplane, see
If one of the units is faulty, while the second unit is functioning properly, then
the “red (ALARM) lit” unit is at fault and should be replaced.
If both units have the red ALARM indicator lit, then both shelves are not
functioning properly and the problem must be isolated to either both the units
or one of the peripheral shelf cards.
Alternatively, the PS19 DC-D unit may not light any
Power
or
Alarm
indicator and
shut down. Following the shutdown of a P19 DC-D unit, the F1 fuse within the
PS19 DC-D or the fuse on the rear panel cage should be replaced. If this does not
restore the unit, then the unit should be replaced.
6
Troubleshooting (PS19 DC-D)
Содержание Coral IPx 500X
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Страница 32: ...1 4 Coral IPx 800 Installation Manual Document Description 1 NOTES...
Страница 34: ...1 6 Coral IPx 800 Installation Manual Special Symbols Used in this Document 1 NOTES...
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Страница 48: ...2 8 Coral IPx 800 Installation Manual Site Inspection 2 NOTES...
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Страница 116: ...3 26 Coral IPx 800 Installation Manual Shared Service and Peripheral Card Test 3 NOTES...
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Страница 142: ...5 16 Coral IPx 800 Installation Manual Protection Devices 5 NOTES...
Страница 150: ...5 24 Coral IPx 800 Installation Manual Terminal Data Communication Ports RS 232E 5 NOTES...
Страница 182: ...5 56 Coral IPx 800 Installation Manual I O RJ 45 Connections Via Rear Panel For Coral Interface Cards 5 NOTES...
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Страница 278: ...6 38 Coral IPx 800 Installation Manual Cage Description and Installation 6 NOTES...
Страница 292: ...6 52 Coral IPx 800 Installation Manual Coral IPx 800X Expansion Cage Description 6 NOTES...
Страница 312: ...6 72 Coral IPx 800 Installation Manual System Configuration Options Coral IPx 800 6 NOTES...
Страница 313: ...Coral Cor IPx 800 Installation Manual Chapter 7 Power Supplies 7 1 PS19 DC 7 1 7 2 PS19 DC D 7 17 7 3 PS19 AC 7 39...
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Страница 352: ...7 38 Coral IPx 800 Installation Manual PS19 DC D Power Supply Unit with Duplication 7 NOTES...
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Страница 372: ...8 4 Coral IPx 800 Installation Manual Common Control Cards 8 NOTES...
Страница 382: ...8 14 Coral IPx 800 Installation Manual Software Authorization Unit SAU 8 NOTES...
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Страница 396: ...8 26 Coral IPx 800 Installation Manual HDC Card High Density Control 8 NOTES...
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