Date: Fri, 6 Mar 1998 19:49:39 -0600 From: Karl Denninger <karl@mcs.net> To: shimon@simon-shapiro.org Cc: Terry Lambert <tlambert@primenet.com>, dmlb@ragnet.demon.co.uk, wilko@yedi.iaf.nl, julian@whistle.com, hackers@FreeBSD.ORG, lada@ws2301.gud.siemens.at Subject: Re: SCSI Bus redundancy... Message-ID: <19980306194939.58793@mcs.net> In-Reply-To: <XFMail.980306174917.shimon@simon-shapiro.org>; from Simon Shapiro on Fri, Mar 06, 1998 at 05:49:17PM -0800 References: <199803070118.SAA25810@usr09.primenet.com> <XFMail.980306174917.shimon@simon-shapiro.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, Mar 06, 1998 at 05:49:17PM -0800, Simon Shapiro wrote: > Telcos run equipment on 48VDC. In most switching rooms, not only you are > not allowed (and do not have) power grid AC, you cannot even generate it > inside your own cabinet. Well, yeah, but I often wonder just how smart that really is. 48VDC might sound rather "harmless". Its not. The power levels running around in those switching centers are high enough to make me *extremely* careful when working around it. Bridge the positive and negative poles, and you'll find out what I mean. -- -- Karl Denninger (karl@MCS.Net)| MCSNet - Serving Chicagoland and Wisconsin http://www.mcs.net/ | T1's from $600 monthly to FULL DS-3 Service | NEW! K56Flex support on ALL modems Voice: [+1 312 803-MCS1 x219]| EXCLUSIVE NEW FEATURE ON ALL PERSONAL ACCOUNTS Fax: [+1 312 803-4929] | *SPAMBLOCK* Technology now included at no cost To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19980306194939.58793>