3-11
Cisco Aironet 1250 Series Access Point Hardware Installation Guide
OL-8247-03
Chapter 3 Troubleshooting 1250 Series Autonomous Access Points
Low Power Condition on Autonomous Access Points
Configuring Power Using the CLI
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 configure the access point to
operate with older switch software using the following Cisco IOS CLI command:
[no] power inline negotiation {prestandard source |injector {installed | override | H.H.H}}
Where:
• prestandard source indicates the Cisco switch does not support Intelligent Power Management.
• injector installed indicates a power injector is installed on the current switch port.
Note The power inline negotiation injector installed command is not required, because the
access point can detect the 1250 power injector (AIR-PWRINGJ4).
• injector override indicates a power injector is installed and the access point is configured to
override the inline power checks. When you move the access point, H.H.H is used to specify the
MAC address of the new switch port where the access point was moved. A MAC address of 0.0.0 is
invalid.
Caution When you are using the power inline negotiation injector override command, a power injector must
always be installed to prevent a possible overload condition with an underpowered power source.
Note The power inline negotiation injector installed command will fail if CDP is disabled.
When using the power inline negotiation injector override command, you must use a power injector to
prevent possibly overloading underpowered power sources.
You can use this Cisco IOS CLI command 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 for the access point with one radio module installed.
• A 1250 power injector is being used to supply sufficient power and the Cisco switch does not support
Intelligent Power Management.
• The access point was moved to a new Cisco switch port and a 1250 power injector is being used to
supply sufficient power.
Caution If the access point receives power through PoE, the output current of the power sourcing equipment
(PSE) cannot exceed 400 mA per port.
Note After completing your configuration changes, you must remove the serial console cable from the access
point.
To Next Page
Loading...
