Installing And Removing The Cisco 2921, Cisco 2951, Or Cisco 3900 Series Optional Dc Power Supply - Cisco 2900 series Installation Manual

Replacing Power Supplies and Redundant Power Supplies
The following messages are expected behavior when you try to reload or insert a POE supply in a router
with Ethernet Switch Network Module:
Aug 10 18:29:40.331: %ILPM_FAULT-5-ILPM_NOTICE: Notice: Inline power supply is being
started.
*Aug 10 18:29:40.331: %ILPM_FAULT-5-ILPM_WARNING: Warning: Ethernet Switch Network Modules
with PoE Support need to be reloaded to function properly.
*Aug 10 18:29:40.691: %SYS-5-RESTART: System restarted -- Cisco IOS Software, C2900
Software (C2900-UNIVERSALK9-M), Version 15.0(1)M2, RELEASE SOFTWARE (fc2)
This Warning message is not an indication of any ERROR in the system but a WARNING upon system
reload or POE power supply restoration.
Upon POE power supply insetion, inline power supply restores automatically in the router. After the
insertion, reset is needed for the switch modules in the router for the POE supply to work properly.
If there are two POE supplies, the power supplies can operate in a boost mode or redundant mode. In a
boost mode, the total power supplied is a sum of the two power supplies capacity. In a redundant mode,
if one of the POE supply fails, the other POE will supply power.
Installing and Removing the Cisco 2921, Cisco 2951, or Cisco 3900 Series
Optional DC Power Supply
This unit might have more than one power supply connection. All connections must be removed to
Warning
de-energize the unit. Statement 1028
Warning Blank faceplates and cover panels serve three important functions: they prevent exposure to
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not
operate the system unless all cards, faceplates, front covers, and rear covers are in place. Statement
1029
Warning This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Statement 1030
Several power supply options are available for the Cisco 2921, 2951, and 3900 series routers. See
Table
for easy removal and replacement. If an RPS is attached, the power supply may be hot-swapped.
Note
Cisco 2900 Series and 3900 Series Hardware Installation Guide
5-40
5-2. All of the power supply and RPS options have a similar modular form factor, with no cabling,
The 3900 series routers do not use an external RPS, and instead use an optional secondary
internal power supply.
Chapter 5 Installing and Upgrading Internal Modules and FRUs
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