Nortel Networks 1000M Manuale Utente

Pagina di 458
 Powering up the system and initial loading
 Page 305 of 456
Communication Server 1000M and Meridian 1
Large System Installation and Commissioning
4
For each non-Core column, verify that:
The main circuit breaker in the pedestal did not trip OFF.
The main blower unit in each column is running.
The ringing generators are lit.
The red column LEDs in the top cap are lit. These LEDs will remain 
red until the system reloads.
5
Simultaneously turn the main circuit breakers for the two Core columns 
ON. 
6
For each Core column, verify the following:
The main circuit breaker in the pedestal did not trip OFF.
The main blower unit in each column is running.
The ringing generators are lit.
The red column LEDs in the top cap are lit. These LEDs will remain 
red until the system reloads.
7
When the system is running, reattach all covers and panels to the 
modules and columns. Module covers must be kept on so the air from the 
pedestal fans will be directed up through all the modules and out the 
exhaust vents in the top cap. When the module covers are removed, the 
upper modules are not cooled properly because the air escapes from the 
open module door. 
If the module covers are left off and the system overheats, circuit cards 
will malfunction and, in extreme cases, melt.
End of Procedure