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To: Frank A. Coluccio who wrote (2354)	11/21/1998 3:29:00 PM
From: Ken98	Read Replies (1) \| Respond to of 12823

Frank, hope all has been well. Question 1 - what significance, if any, is it that Level 3 is laying fiber directly to a number of the neighborhood Bell switch offices as part of their build in Dallas? They have had crews working almost around the clock for the last couple of months and appear to be coming close to completion of their build in town. Question 2- what is your opinion, if any, of Metromedia Fiber? Regards, Ken.

To: Frank A. Coluccio who wrote (2354)	11/21/1998 3:43:00 PM
From: wily	Read Replies (1) \| Respond to of 12823

I think this article will be quite passe' for this thread, whereas everyone else I showed it to didn't know what to make of it. I know a similar technology is being used now for home networking. I'd appreciate any coments. home.eznet.net I didn't copy it directly to this message because the text came out all skewed. wily

To: Frank A. Coluccio who wrote (2354)	11/21/1998 6:42:00 PM
From: lml	Read Replies (3) \| Respond to of 12823

Thanks for your input, Frank. You & Denver Tech are an invaluable resource to me in understanding the capabilities of the existing telco infrastructure in my streets, as well as potential capabilities for the future. Kudos to you both. Pair Gain Box The engineer I spoke with used the word "pair gain" to describe a box installed in the next canyon that was necessary to provide T1 service to a newly developed gated community based upon "demonstrated demand" for such service. I figure the community is situated 'bout 30-35,000 ft from the Beverly Hills CO. Whether the engineer was referring to generic DLC or a box actually manufactured by PairGain Technology is indeterminate. Frank's explanation of the generic usage of the term "pair gain" seems the more likely answer. Neighborhood DLC Denver Tech, you are probably correct that I am presently served by a DLC since the technicians I've talked to have explained to me how loads are placed upon my pairs in order to deliver an audible signal 37,000 ft out. My understanding is that with an analog signal, each load amplifies the signal & therefore creates distortion & noise. This is why my internet connection was just about useless. Wire Gauge Frank, you're on the money. Situated anywhere between 37-40,000 ft from the CO, depending upon the pair I'm hooked to, the engineer I spoke with initially told me that he wasn't certain he could deliver an ISDN connection to my home, notwithstanding the ISDN people telling me "if you're in my jurisdiction, I can get you ISDN." It turned out that since the gauge in my street was relatively heavy (size 22), it was possible to deliver ISDN to my doorstep. My understanding is that typically ISDN is good to about 18,000 ft., & with a repeater good out to about 27,000 ft. According to the ISDN installer, because of the heavy gauge copper, a greater load was able to be placed upon my the pair, extending the range of ISDN service to a far as about 60,000 ft. Frank, you understand what this installer was referring to? You appear to know just 'bout everything when it come to telco technology. What are ISDN BRI & 2B1Q extenders? Is this what I have on my line? DSL What I'm most interested in is the technical feasibility of delivering DSL service to a neighborhood situated as far as 30-40,000 ft from the CO. Would the extension of a fiber-optic trunk up the centerline of a major arterial adjoining the neighborhood enhance this feasibility? Does a closer fiber-optic connection enhance such feasibility, or is it meaningless since distance capabilities of copper twisted pairs have improved dramatically through innovative technology? Appreciate your (Frank & Denver Tech) thoughts. TIA, lml

To: Frank A. Coluccio who wrote (2354)	11/24/1998 2:54:00 PM
From: DenverTechie	Read Replies (1) \| Respond to of 12823

Frank, not a typo on the CO distances, more of an irrelevant reference. What I had meant to state was the standard telco engineering for distance from the CO is 18,000 in radius (about 3.4 miles radius). A 3.4 mile radius equates to a 6.8 mile diameter. The RADIUS is the distance from the center of the circle -- the CO in this case -- to an end point on the circle (which of course is relevant in this instance as the distance for calculating ADSL distance to the home from the CO). The DIAMETER is the distance from a point on the circle, through the center of the circle -- again the CO here -- to a point on the opposite side of the circle, or 2 times the radius. The figure is generally irrelevant to ADSL discussions and should not have been stated in my post. Sorry for the confusion, hope this clears it up.