Re: Lightning protection

[Chuck Lewis <clewis@xxxxxxxxxx>]

Just an aside to all of this...

and yes, we have had this problem this year too at remote sites. EVERYTHING would be fine except for the Adtran DSU/CSU... We got line conditioners for the data circuits...

you need to do ALL you can but there is NO fool proof way that I've ever heard of to GUARANTEE protection from a lightening strike other than unplugging stuff (or conditioning the power through a LARGE UPS so nothing runs off of external power. Still have a problem with the data circuits). When we were researching UPS's many years ago, we came across technical data from the power folks that a SINGLE bolt of lightening can generate ONE MILLION VOLTS of electricity in SECONDS !!

Mother Nature - ALWAYS impressive :-)

Chuck

Jim Franz wrote:

After a severe lightning storm Thu nite, a customer's shop is still down. The AS/400 runs fine. The 400 & most network equip on large UPS all survived. (Their network tech put some RAS servers outside computer room & they died-idiot). All the hubs in office damaged.  My question is the CISCO router. Was on UPS & powers up ok, but the tech described the CSU/DSU port as "fried". Is there such a thing as T1 cable surge suppression? I asked router tech & he has no clue. I asked telco tech & he had no clue.Jim Franz