When installing or replacing the unit, the ground connection must always be made first and
disconnected last. Statement 1046
Warning
Hazardous voltage or energy may be present on DC power terminals. Always replace cover when
terminals are not in service. Be sure uninsulated conductors are not accessible when cover is in
place. Statement 1075
Warning
To ensure that power remains off while you are performing this procedure, lock-out/tag-out the DC
circuit breaker switch in the OFF (0) position until you are ready to turn it on.
Warning
The NCS 2015 relies on the protective devices in the building installation to protect against short circuit,
overcurrent, and ground faults. Ensure that the protective devices are properly rated and comply with
national and local codes.
Caution
If the system loses power or both the TNCS or TNCS-O cards are reset, and the system is not provisioned
to get the time from a Network Time Protocol/Simple Network Time Protocol (NTP/SNTP) server, you
must reset the NCS 2015 clock. After powering down, the date defaults to January 1, 1970, 00:04:15. To
reset the clock, see the “NTP-G24 Set Up Name, Date, Time, and Contact Information” procedure of the
“Managing the Shelf” chapter in the Cisco NCS 2000 Series Control Card and Node Configuration Guide.
If you use the TNCS or TNCS-O cards, the system clock runs for up to three hours. In this case, no action
would be required.
Note
Follow your local practices and requirements when installing power.Note
Cisco NCS 2000 Series Hardware Installation Guide
342
Connecting Power and Ground
DLP-L79 Connecting Office Power (DC) to the NCS 2015 Shelf
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