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I worked for an ISP that was deploying switches nationwide... We got a lot of space in BT Telephone Exchanges and thought nothing more of it. I have never seen

by wilhil 7y ago

I worked for an ISP that was deploying switches nationwide... We got a lot of space in BT Telephone Exchanges and thought nothing more of it. I have never seen such dirty and bad power! Literally once a week we had to go to exchanges to reset fuses that had tripped. We then started deploying (rather entry level) UPS to all locations and the problem just disappeared completely... we then invested in more high end UPS systems, but, yeah - dirty power is a big problem and UPS help.

Aloha 7y ago
I'm surprised CO gear was not running on -48v rather than AC power
- viraptor 7y ago
  Is DC actually common these days? I haven't been to a physical datacenter in a decade or do, but I remember almost everything running on AC.
  - wilhil 7y ago
    I'm an IT and networking guy... This is one thing that got on my nerves completely - most equipment comes as AC or DC, and I'm never sure what to order, so, I usually go for the AC one as it's the safe choice
  - Aloha 7y ago
    It is in Telecom Applications.