nanog mailing list archives
RE: DC fiber cut: field report
From: Steve Martin <steve () conxion com>
Date: Fri, 18 Jul 1997 16:08:23 -0700
Correct you are! Having spent 7 years of my career doing large OSP (OSP in this case is Outside Plant) installations around the country including direct buried, ducted and aerial I can confirm that these techniques are routinely employed. That makes 2 cable weenies! -S -----Original Message----- From: Jay R. Ashworth [SMTP:jra () scfn thpl lib fl us] Sent: Friday, July 18, 1997 2:38 PM To: Owen DeLong Cc: Dave O'Shea; stephen () clark net; nanog () merit edu Subject: Re: DC fiber cut: field report On Fri, Jul 18, 1997 at 11:59:11AM -0700, Owen DeLong wrote:
Gee, makes a good case for putting innerduct inside conduit and putting gas through it just to discourage BIFF. :-)
Am I the only one who's a cables and switches weenie enough to know that the telco's _already do this_? Large numbers of local multi-pair trunking cables are pressurized with nitrogen, and they put pressure drop alarms on them, so they know if one takes a hit. Cheers, -- jra -- Jay R. Ashworth jra@bayli nk.com Member of the Technical Staff Unsolicited Commercial Emailers Sued The Suncoast Freenet "People propose, science studies, technology Tampa Bay, Florida conforms." -- Dr. Don Norman +1 813 790 7592
Current thread:
- Re: DC fiber cut: field report, (continued)
- Re: DC fiber cut: field report Owen DeLong (Jul 18)
- Re: DC fiber cut: field report Andrew Partan (Jul 18)
- Re: DC fiber cut: field report Hal Murray (Jul 22)
- Re: DC fiber cut: field report Adrian J Bool (Jul 18)
- Re: DC fiber cut: field report Stephen Sprunk (Jul 18)
- Message not available
- Re: DC fiber cut: field report Jay R. Ashworth (Jul 18)
- Re: DC fiber cut: field report Stephen Balbach (Jul 18)
- Message not available
- Message not available
- Re: DC fiber cut: field report Jay R. Ashworth (Jul 20)
- Re: DC fiber cut: field report Owen DeLong (Jul 18)
- Re: DC fiber cut: field report Sean M. Doran (Jul 23)