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Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here

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To: Frank A. Coluccio who wrote (533)	11/26/1996 10:55:00 PM
From: Ray Jensen	of 12823

Hi Frank, regarding your question as to weather it good to have a specification for the maximum number of splices in a copper pair span for ADSL....that would be asking a lot. Even today, copper pair plant records for many big telcos are heavily dependent on manual processes. There is no magic data base to rapidly find out how exactly how many splices there are on a particular feeder or distribution cable pair. That means that an ADSL service order would require some poor soul to pour through many, many outside plant cable records and follow cable pair counts and count splice points. This would be extremely time consuming and tedious, bordering on cruel and unusual punishment. An alternative would be to try a time domain reflectometer (TDR) to scan the cable pair from the central office main distribution frame. Problem is there might be so much other "junk" on the average length loop that it would be hard to distinguish the splices from the junk. I have found that TDRs are more dependable due to better resolution when used on spans less than one mile. Just some thoughts from my humble, non-executive viewpoint. Ray J.

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