The following table describes the external power supply.

The 110W AC power supply is an autoranging unit that supports input voltages between 100 and 240 VAC.

The power supply adapter uses an 18- AWG power cord for connection to an AC power outlet.

A 6-pin latching DC connector supplies power to the controller.

Verifying Connections

To verify if the power supply adapter is connected to the power outlet, first turn on the power, then check the LED status.

The following table describes the LED status of the power supply adapter.

Table 2. Power Supply Adapter LED and Description

Power Supply Adapter LED	Description
Off (LED is off)	No input power.
Green	Input power present.

This section includes the basic installation guidelines for installing a power supply. Read this section before you start the installation procedure. Translations of the warning statements appear in the RCSI guide on Cisco.com.

Observe these guidelines when installing a power supply:

• A power supply that is only partially connected to the controller can disrupt the system operation.

Warning

Installation of the equipment must comply with local and national electrical codes. Statement 1074

Warning

Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030.

If you contact Cisco Technical Assistance regarding a power supply, you need to know the serial number.

You can find the serial number printed on the external power adapter.