Hardware Installation Manual  46  Document #: LTRT-28030 
5.  If you are using two Power Supply modules, repeat steps 1 through 3 for connecting 
the second Power Supply module, but using the power socket associated with the 
second Power Supply module and connecting this to a different supply circuit. 
6.  Turn on the power at the power source (if required). 
7.  Check that the LED on each Power Supply module (front panel) is lit green, indicating 
that the device is receiving power.  For more information on the power LED, see 
Section  3.3.4.4 on page 26.