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Originally Posted by injuneer
I was talking about the batteries on the switch sites not the ones in the cabinets !! Some of them have been in for about 10 years now and are well past their sell by date !!
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yes they are getting old now, I guess most switch sites/headends are drawing about 1000 amps of current from batteries for the telco gear these days. (judging by the last I remember from Cardiff switch as an example) It doesn't take a genuis to realise that the batteries are only desgined to keep things going for a very short time until the generator kicks in. I think another big difference between ntl and BT is the number of switch sites they have, ntl tended to put all the eggs in one big basket. Cardiff had one switch site, but I seem to remember being told BT had about six in the area. In Cardiff ntl also put all the concentrators in the Switch/headend and not out in the hubsites like most other areas, this of course is extra load for the batteries/ups when a power outage occurs.
ntl's network is generally not as resilint as BT's, and ntl came unstuck a few times in south wales with the few large business customer contracts they won. I know they lost one contract with a big customer due to switch congestion and another due to a fibre being cut, and they had lied to the customer telling them there was a diverse fibre feeding the area just to get the sale!
I know there was some clear-up civils work to complete some rings, so thats probably not the case now. Still though east and west fibres running in the same hubsite trays or the same ducts is not a very good idea.
