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Message Digest
Volume 28 : Issue 137 : "text" Format
Messages in this Issue:
How common are 500 sets that were never refurbished?
Re: CO backup power
Re: CO backup power
Re: CO backup power
Re: CO backup power
Re: Verizon selling off phone lines
NC votes to end telephone regulation
Re: Verizon selling off phone lines
Re: Verizon selling off phone lines
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Date: Tue, 19 May 2009 01:33:36 -0500
From: Michael Grigoni <michael.grigoni@cybertheque.org>
To: redacted@invalid.telecom.csail.mit.edu
Subject: How common are 500 sets that were never refurbished?
Message-ID: <4A1252C0.1000700@cybertheque.org>
Today I found a 500D set with G1 handset (not retractile), and all
[the] parts have matching date codes in 1953, and there is no
vermilion paint or painted-over stenciling on the base. The dial also
has a clear plastic cap that completely covers the hub and under which
is the number card.
The all-bakelite handset and the phone's robust construction make it
the heaviest 500 that I have ever held. How common are early 500s
with all-original parts?
Michael
------------------------------
Date: Tue, 19 May 2009 17:36:30 +1000
From: David Clayton <dcstar@myrealbox.com>
To: redacted@invalid.telecom.csail.mit.edu
Subject: Re: CO backup power (was Re: FiOS in MDU Buildings
Message-ID: <pan.2009.05.19.07.36.29.587260@myrealbox.com>
On Mon, 18 May 2009 19:29:33 -0400, Al Dykes wrote:
> ***** Moderator's Note *****
>
> What little I know of power factor (trust me, it _is_ little) leads me
> to be surprised that it could be adjusted in advance. Please tell us
> how this is done, and why it would have to be changed at different
> times of the year.
Wouldn't summer time have a lot more Reverse-cycle air conditioners
running that would change the power factor requirements by adding a lot
more inductive load to the grid?
IIRC most grid load is inductive, so reducing those circulating currents
can cut back line losses significantly.
--
Regards, David.
David Clayton
Melbourne, Victoria, Australia.
Knowledge is a measure of how many answers you have, intelligence is a
measure of how many questions you have.
***** Moderator's Note *****
OK,I'm thick, so bear with me: I though air conditioners, or any AC
motor for that matter, had capacitors in them to help them start, and
I don't understand why they would be an inductive load.
Plus, how could Con Ed compensate for an inductive load? Wouldn't it
take gargantuan capacitors on every pole, or are the loads only
inductive when the motors first start?
Bill Horne
Temporary Moderator
------------------------------
Date: 19 May 2009 12:23:18 -0400
From: adykes@panix.com (Al Dykes)
To: redacted@invalid.telecom.csail.mit.edu
Subject: Re: CO backup power
Message-ID: <guumdm$duq$1@panix5.panix.com>
In article <pan.2009.05.19.07.36.29.587260@myrealbox.com>,
David Clayton <dcstar@myrealbox.com> wrote:
>On Mon, 18 May 2009 19:29:33 -0400, Al Dykes wrote:
>
>> ***** Moderator's Note *****
>>
>> What little I know of power factor (trust me, it _is_ little) leads me
>> to be surprised that it could be adjusted in advance. Please tell us
>> how this is done, and why it would have to be changed at different
>> times of the year.
>
>Wouldn't summer time have a lot more Reverse-cycle air conditioners
>running that would change the power factor requirements by adding a lot
>more inductive load to the grid?
>
>IIRC most grid load is inductive, so reducing those circulating currents
>can cut back line losses significantly.
I believe that they switch capacitors in, or did at the time.
--
Al Dykes
News is something someone wants to suppress, everything else is advertising.
- Lord Northcliffe, publisher of the Daily Mail
------------------------------
Date: Tue, 19 May 2009 21:12:40 +0000 (UTC)
From: David Lesher <wb8foz@panix.com>
To: redacted@invalid.telecom.csail.mit.edu
Subject: Re: CO backup power (was Re: FiOS in MDU Buildings
Message-ID: <guv7c8$m7k$1@reader1.panix.com>
>***** Moderator's Note *****
>OK,I'm thick, so bear with me: I though air conditioners, or any AC
>motor for that matter, had capacitors in them to help them start, and I
>don't understand why they would be an inductive load.
>Plus, how could Con Ed compensate for an inductive load? Wouldn't
>it take gargantuan capacitors on every pole, or are the loads only
>inductive when the motors first start?
The caps in most motors are starting-only; only a few motors are "cap
start/cap run" and those are usually bigger. So the normal grid load is
always inductive.
[The starting cap in an induction motor creates a 90 deg phase shift
so that the starting and running windings give the one-two umph
to get the motor going.]
Yes, ConEd would have to add cap banks to improve the PF. (I see them on
PEPCO poles all the time.) On industrial accounts, utilities often nick
you a "bad PF" surcharge. I've speced and installed cap banks at pump
stations for that reason.
--
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433
------------------------------
Date: Tue, 19 May 2009 15:56:38 -0700
From: Richard <rng@richbonnie.com>
To: redacted@invalid.telecom.csail.mit.edu
Subject: Re: CO backup power
Message-ID: <gud615h52d03ng9l6rulaa6r8t1p4litbq@4ax.com>
On Tue, 19 May 2009 11:35:33 -0400 (EDT), our moderator wrote:
>***** Moderator's Note *****
>
>OK,I'm thick, so bear with me: I though air conditioners, or any AC
>motor for that matter, had capacitors in them to help them start, and
>I don't understand why they would be an inductive load.
The capacitor is only used during starting. Once sufficient speed is
reached, a switch operated by centrifugal force opens the starting
winding. Thereafter, the load is inductive.
>Plus, how could Con Ed compensate for an inductive load? Wouldn't it
>take gargantuan capacitors on every pole,
Yes. I see them mounted on the poles.
------------------------------
Date: Tue, 19 May 2009 07:48:34 -0700 (PDT)
From: hancock4@bbs.cpcn.com
To: redacted@invalid.telecom.csail.mit.edu
Subject: Re: Verizon selling off phone lines
Message-ID: <69fc08f3-14af-4653-bb2c-6a853f1d6f07@u10g2000vbd.googlegroups.com>
On May 18, 7:09 pm, Fred Goldstein
<fgoldstein.SeeSigSpamb...@wn2.wn.net> wrote:
> Panel offices had a bit of what might be considered common control;
> it used a "decoder" to route calls baed on the first three digits
> dialed.
I would say more than a "bit" of common control; it was a common
control system. The caller's desired number was stored, translated,
and outpulsed to the appropriate switches. In classic step-by-step,
the caller's dialing directly controlled each switch and nothing was
stored. As mentioned, later on 'front-ends' were added to SxS to
store numbers.
In panel, the desired exchange was translated per trunking
requirements.
The key feature of common control (panel, crossbar, or ESS) was that
an expensive front end translated the number and controlled the
subsequent switching, and this front end was only used to set up the
call. Once the call was set up the front end dropped out and was
available for other calls.
It wasn't until the 1960s that they could get the front-end to be
simple and cheap enough for low-use systems (such as PBX's and small
offices): before that step-by-step was the cheapest approach.
The advantages of panel was that it could handle complex trunking to
other offices, automated manual office interface, and a higher call
load since it could support more banks than a 10x10 stepper switch
could work with.
Panel also included sophisticated testing gear.
------------------------------
Date: Tue, 19 May 2009 16:35:14 -0700
From: "John Meissen" <john@meissen.org>
To: redacted@invalid.telecom.csail.mit.edu
Subject: NC votes to end telephone regulation
Message-ID: <20090519233514.363FB340D0@john>
I don't recall seeing this here yet.
http://www.cnbc.com/id/30745434
"The [North Carolina] House on Wednesday voted 102-11 to allow 16 providers
that cover the state to cut loose from state Utilities Commission
conditions
setting the rates, terms, and quality of their landline services."
The same old, tired arguments.. no longer monopolies, consumers
benefit from competition, etc.
"It's not possible for consumers to get the full benefit of a
competitive marketplace when that marketplace is impacted by rules
that were in place to regulate a monopoly industry that no longer
exists," Clifton Metcalf, a spokesman for AT&T, said.
Right. Anybody want to buy a bridge?
***** Moderator's Note *****
Actually, one could make a case for the removal of government
regulation by saying that it's obviously ineffective, and clearly
corrupt, and that it's best for consumers of telecommunications
services to know that they're on their own and can't expect any help
from Uncle Sam.
Bill Horne
Temporary Moderator
------------------------------
Date: Tue, 19 May 2009 20:44:51 -0400
From: T <kd1s.nospam@cox.nospam.net>
To: redacted@invalid.telecom.csail.mit.edu
Subject: Re: Verizon selling off phone lines
Message-ID: <MPG.247d1c8f6c3e9bc1989a20@reader.motzarella.org>
In article <gusvjq$cta$1@panix5.panix.com>, adykes@panix.com says...
>
> In article <gusigv$mrh$1@reader1.panix.com>,
> David Lesher <wb8foz@panix.com> wrote:
> >David Clayton <dcstar@myrealbox.com> writes:
> >
> >> Do US telcos get any "freebie" use of public space for their
> >> infrastructure, or do they have to pay market rates (like land for
> >> their COs)?
> >
> >Buildings they own; but in MD, they get a free ride on property taxes.
> >
> >The easements for outside plant are a different matter. AFAIK, they
> >get such free. Fred Goldstein would know the details.
>
> In NYC, rights to use under-street ducting is franchised to major
> electrical contractors in big chunks of area. If my private company
> wants to run fibre between two buildings under or via a city street,
> all it takes is money, but it has to be done by the franchise owner or
> his subcontractors.
>
> There are some under-used tunnels in Manhattan and nobody ever ran a
> unofficial wire through any of them. <ahem>
The same is true here in Providence, RI. When I was with the AG's office
we had a run of fiber about 600 yards long running through a then
Narragansett Electric conduit on South Main St. It connected the
judiciary with the AG's office.
------------------------------
Date: Tue, 19 May 2009 22:47:24 -0500
From: Neal McLain <nmclain@annsgarden.com>
To: redacted@invalid.telecom.csail.mit.edu
Subject: Re: Verizon selling off phone lines
Message-ID: <4A137D4C.5090004@annsgarden.com>
David Clayton <dcstar@myrealbox.com> wrote:
> Do US telcos get any "freebie" use of public space for
> their infrastructure, or do they have to pay market rates
> (like land for their COs)?
I can't speak for telcos, but I'll try to answer on behalf of the cable
TV industry, which now offers telephone service.
In all states, US cable TV companies are usually required to pay
franchise fees based on revenue derived from the provision of video
services and certain services incidental to the provision of video
services (e.g., equipment rental, ad commissions); however, they are
exempt from paying franchise fees on revenue derived from the provision
of internet access ("cable modem") service or telephone service. These
fees constitute payment for the right to place facilities on public
(locally-owned) rights-of-way. Franchise fees are assessed by local
franchising authorities (LFAs). http://www.dps.state.ny.us/frfee.htm
In some states, cable TV companies are required to pay Real Property
Taxes on physical plant. These fees are constitute payment for the
right to place facilities on public (state-owned) rights-of-way.
In most jurisdictions, cable TV companies are required to pay property
taxes on owned real estate (land and buildings). These are taxes of
general applicability, unrelated to the provision of cable TV service;
they are based solely on the assessed valuation of the property.
Cable systems owned by non-profit corporations are generally exempt from
taxes. They may or may not be exempt from franchise fees, depending on
the language in the franchise document itself.
Cable systems owned by government agencies are generally exempt from all
taxes and fees.
Neal McLain
------------------------------
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End of The Telecom digest (9 messages)
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