Cisco AIR-AP1252AG-A-K9 - Configuring Power Using Controller CLI Commands

4-11
Cisco Aironet 1250 Series Access Point Hardware Installation Guide
OL-8247-03
Chapter 4 Troubleshooting 1250 Series Lightweight Access Points
Low Power Condition for Lightweight Access Points
Configuring Power Using Controller CLI Commands
Intelligent Power Management support is dependent on the version of software resident in the Cisco
switch that is providing power to the access point. Each Cisco switch should be upgraded to support
Intelligent Power Management. Until the software is upgraded, you can use your controller to configure
the access point to operate with older switch software using these controller CLI commands:
1) config ap power pre-standard enable <ap>
where <ap> is the access point name on the controller
2) config ap power injector enable <ap> <switch port MAC address>
(where <ap> is the access point name on the controller
and <switch port MAC address> is the MAC address of the switch port to which the
access point is connected)
Note Refer to your controller documentation for instructions on using these commands.
You can use these controller CLI commands to inform the access point of the following:
• The Cisco switch does not support Intelligent Power Management but should be able to supply
sufficient power.
• A power injector is being used to supply sufficient power and the Cisco switch does not support
Intelligent Power Management.
Caution If the access point receives power through PoE, the output current of the power sourcing equipment
(PSE) cannot exceed 400 mA per port.
Refer to Table 4-3 and Table 4-4 for information on when to use these special CLI controller commands
and the corresponding Cisco switch power command.
Table 4-3 Using CLI Power Commands for Access Points with One Radio Module Installed
Power Source
CLI Commands
Cisco Wireless LAN Controller Cisco Switch
AC power module None required power inline never
Cisco switch that supports Intelligent Power
Management
1
1. You should check the release notes for your Cisco power source to determine which Cisco IOS release supports Intelligent Power Management. Support
for Intelligent Power Management might not be currently available for your Cisco power source.
None required power inline auto
Cisco switch that does not support Intelligent
Power Management
1
config ap power pre-standard enable power inline auto
Power injector
2
used with a Cisco switch that
supports Intelligent Power Management
1
2. Power injector must be AIR-PWRINJ4.
None required power inline never
3
Power injector
2
used with a Cisco switch that
does not support Intelligent Power
Management
1
None required
4
power inline never
Power injector used with a non-Cisco switch None required –
802.3af compliant non-Cisco switches A 1250 power injector is required –