36 Years of the Digest ... founded August 21, 1981
Copyright © 2018 E. William Horne. All Rights Reserved.

The Telecom Digest for Fri, 03 Aug 2018
Volume 37 : Issue 181 : "text" format

Table of contents
Re: Backup Power for Cox [or other] ISPJulian Thomas
History--early telephone use of wind generatorHAncock4
Re: Backup Power for Cox [or other] ISPNaveen Albert
---------------------------------------------------------------------- Message-ID: <F1B1D066-5EA8-4695-BA95-B4B05CCDB4B2@jt-mj.net> Date: 1 Aug 2018 21:46:30 -0400 From: jt@jt-mj.net (Julian Thomas) Subject: Re: Backup Power for Cox [or other] ISP [Telecom] > On Jul 31, 2018, at 16:54, Fred Atkinson <fatkinson.remove-this@and-this-too.mishmash.com> wrote: > > They totaled > 101 watts. > > It is made by APC. The model number is BE600M1. You can > find it on the Best Buy Web site. It provides 600VA Er - 100 watts = 100VA [ignoring power factor]. Either my arithmetic is wrong or 600VA would power you for ~6 min. -- Julian Thomas - http://jt-mj.net The mind of a bigot to the pupil of the eye; the more light you pour on it, the more it contracts. - Oliver Wendell Holmes, Sr. ------------------------------ Message-ID: <de930ce4-5a6c-4405-8a5a-4385d94d4c01@googlegroups.com> Date: 1 Aug 2018 13:54:03 -0700 From: HAncock4 <withheld@invalid.telecom-digest.org> Subject: History--early telephone use of wind generator In 1947, Pacific Telephone ran an ad describing how it uses wind- generators in the desert to power long distance line amplifiers (repeaters). Other parts of the same ad talk about postwar construction to handle the high calling volume. [For the] full advertisement, please see: https://books.google.com/books?id=KK1kAAAAIBAJ&lpg=PA2&dq=%22catalina%20islander%22%20switchboard&pg=PA2#v=onepage&q&f=false ------------------------------ Message-ID: <BYAPR13MB2232A82466FE7E4833DEE26B912C0@BYAPR13MB2232.namprd13.prod.outlook.com> Date: 2 Aug 2018 00:40:40 +0000 From: "Naveen Albert" <wirelessaction@outlook.com> Subject: Re: Backup Power for Cox [or other] ISP [Telecom] On Tuesday, July 31, 2018 1:54 PM, Fred Atkinson <fatkinson.remove-this@and-this-too.mishmash.com> said: > I am looking at a device that is a UPS for providing backup > power to my network devices (cable or DSL modem, router, VOIP devices, > switches, etc.). It keeps a home network in service in the event of a > power outage. I looked up the power requirements for each of the > three devices I would need to provide backup power to. They totaled > 101 watts. > > It is made by APC. [...] It provides 600VA [...]. That is six > times the power [needed]. Since so many people rely on the Internet for all kinds of communications, this seems archaic. Supposing there was a medical or other serious emergency and you could not use your VOIP service to call 911? Or connectivity to your burglar alarm or medical devices were interrupted at a time when those services were most needed? The Internet is no longer just for amusement. It hasn't been for a very long time. It is the primary way we communicate in the world today. Most of us absolutely depend upon it for many things. Reliability is a must and more so for some than others. Burglar alarms and medical devices should not be on VoIP, period. They should ALWAYS be on a copper landline. In fact, they should specifically be on loop start lines. I believe federal law mandates businesses use loop start lines as opposed to ground start trunks for such critical equipment because that ensures they still operate in a mains power outage. The Internet was never designed to be reliable like the phone network was. Connectivity could go down at any time. Most businesses that have gone to VoIP keep a landline for precisely this reason. On the flipside, you can always use dial-up Internet in a mains power outage, regardless of whether your broadband works or not, IF you have a UPS. So you will still have some connectivity, but through a different ISP. If the Internet is your primary way of communicating, fine, but it should not be relied upon 100%. Landlines have 99.999% uptime, the Internet can't compete with that. They often work even in earthquakes and hurricanes. Bottom line is you should be putting anything critical - 911, medical devices, etc. - on a landline, not on VoIP. VoIP can go out at any time for any number of reasons beyond your control. Mains power is irrelevant if you have equipment connected to a landline. ***** Moderator's Note ***** It's summer, and everyone is asleep in the shade. I hope this will still the air a bit. Bill Horne Moderator ------------------------------ ********************************************* End of telecom Digest Fri, 03 Aug 2018

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