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Removing and Replacing the Cisco ASR 1002 Router Power Supplies
Removing and Replacing a +24 VDC Power Supply in Cisco ASR 1002 Router
This section provides information about removing and replacing a +24 VDC power supply in the Cisco
ASR 1002 Router.
Before you begin, read the following notices:
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•
•
•
•
•
Warning
When you install the unit, the ground connection must always be made first and disconnected last.
Statement 1046
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Statement 1030
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Warning
Cisco ASR 1000 Series Aggregation Services Routers Hardware Installation Guide
14-84
The labeling displays +27 VDC INPUT. This labeling describes the nominal voltage provided at a
cell site.
Observe the polarity location—Unlike the polarity labels of the –48 VDC power supply (ground,
positive, negative), the polarity labels on the +24 VDC are ground, negative, positive as shown in
Figure 14-61
from right to left as they appear on the actual power supply unit.
The ground (GND) lead is always installed first and removed last.
The +24 VDC power supply uses a spring loaded terminal block; therefore have the recommended
screwdriver size available.
Review the diagrams to see how the wire is stripped and how the screwdriver is inserted at an angle
into the terminal block.
Have the following equipment available to install and remove the +24 VDC power supply:
Phoenix Contact 3.5mm flat-blade screwdriver or equivalent
–
Wire-stripping tool for stripping 8-gauge wire
–
Chapter 14
Removing and Replacing FRUs from the Cisco ASR 1000 Series Routers
OL-13208-11
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