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To: Frank A. Coluccio who wrote (10074)1/7/2001 3:10:23 AM
From: elmatador  Read Replies (2) | Respond to of 12823
 
About back up SLC's: This week I was trying to get acceptance for 03 nodes in a couple of SDH rings. One guy paced the SDSH shelves inside cabinets that were used for POTS ISDN shelves.

They didn't required for the POTS cabinet redundant rectifiers. For SDH we need redundant power suppliers.

The power plant of SLC's is engineered based in the fact that the power utility promises to bring power back in case of failures, in four hours. Ten we engineer the power back for four hours.

In case of a catastrophe,(like that in Canada that ice destroyed power pylons) it may take more than four hours to bring power back. But that metereological event happens once every 1.000 years.

In case of the corpse ADSL, operators want to squeeze ADSL shelves in already deployed SLC's cabinets. The vendors want to sell brand new cabinets. The guys who engineered those old first generation outdoor things are retired already.

Moreover, if Alcatel sells ADSL, the old SLC's already in the streets, are made by, perhaps half a dozen vendors, those vendors are not interested in giving ALA no documentation about the old stuff.