Link from Ballard to Shoreline?

[Casey Halverson]

..or you could read the mailing list archives from 2001.  Seems strange
that his articles closely mirror the activity timeline of several
community wireless groups.
 


________________________________

	From: talk-bounces at seattlewireless.net
[mailto:talk-bounces at seattlewireless.net] On Behalf Of Kevin Purcell
	Sent: Thursday, August 10, 2006 4:34 PM
	To: SeattleWireless Talk List
	Subject: Re: Link from Ballard to Shoreline?
	
	
	As suggested by Cringley back in 2001 ... 

	http://www.pbs.org/cringely/pulpit/pulpit20010823.html
<http://www.pbs.org/cringely/pulpit/pulpit20010823.html> 
	
	

		But there is another way to keep the signal from being
messed with and that's by ordering-up from the phone company what's
generally called a "dry copper pair." This is just a pair of wires that
connect one location with another as long as both locations are served
by the same CO. Most telephone companies have (or had) a tariff for dry
copper pairs varying from $15-45 per month, though they'll often lie and
say it isn't available. Parts of Verizon still have this tariff, which
is usually called a "Series 1100 circuit." Historically these dry pairs
were used either for the old "leased lines" that connected serial
terminals down at the local airline office or they were used by security
companies for alarm circuits. A dry pair is just that - a pair of wires
with no dialtone down which you could send a current to ring a bell on
the other end. When you go looking for one, try asking first for an
alarm circuit (the cheapest way when available), then an OPX
(off-premise extension) line, then a paging circuit, or finally LADS
(local area data service). Keep running down the list until the phone
company says "yes."

	
	
	and
	
	

		Of course the local telephone companies hate this whole
idea because they want to sell you that T-1 line for $500-600 per month.
That's why they will tell you dry pairs don't exist when they usually do
exist. And that's why phone companies are trying to get rid of dry pairs
as quickly as they can.

	
	
	Ah, the good old days of 2001 when Linksys WAP11 wireless boxes
cost a mere $250 :-)
	
	
	What he doesn't mention is a lot of phone companies now make
sure a "alarm circuit" now has inductors stuck in the circuit so it
won't work above audio frequencies. Bye, bye DSL. YMMV.
	
	
	But if anyone is doing this with Qwest I'd like to know (or any
other phone company come to that). I would seem to be a good way to
connect up the discontiguous Seattle Wireless network.
	
	
	On Aug 10, 2006, at 1:53 PM, Patrick wrote:


		Another option would be to get some 'dry copper'  from
the phone company to connect your two end points.  This is very similar
to what they provide for home security ciruits a dedicated phone line
that connects you to the security company.  It takes alot of talking
from what I understand to get the phone company to understand what your
asking for unless you get lucky.  But its doable.  Once you have that
you can set up your own endpoint devices and get up to 10Mbps depending
on the hardware you use.  And its relativly cheap since once the
endpoint devices are paid for your reoccuring cost is only electricity
and the relatively cheap price of the dedicated phone line. 
		
		-Patrick
		
		
		On 8/4/06, Gary <gary at eyetraxx.net> wrote: 

			Tom Marshall wrote:
			
			> Any solution will have to be at least DVD
quality. The video is shown on
			> 30-foot and 45-foot screens. I don't know the
projector resolution off
			> the top of my head though.
			
			The average bit rate for DVD is 4-5 Mbps (max is
9.8) but it would be
			inefficient to stream MPEG-2. If you want a
projectable image, you're not
			going to need 6 Mbps up and down. Someone else
suggested H.264 but I've 
			found that even crufty old H.323 offers
sufficient quality to display on a
			large screen TV (40+ inches). Some testing with
larger screens would be
			required, however. You could save yourself a lot
of time and money by 
			first finding an individual or company that
specializes in streaming video
			before you overbuy on bandwidth. If you want to
do it on your own, check
			out some of the lower end gear by Linksys and
D-Link then compare them 
			with Polycom or Axis Communications, etc.
			
			-Gary
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		--
	Kevin Purcell
	kevinpurcell at pobox.com