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Alime.143 net.lan utcsrgv!utzoo!decvax!duke!chico!harpo!floyd!houxi!houxe!lime!martin Wed Jan 27 22:53:30 1982 fun with a cable system for broadband networks I was about to get up and say 'well this stuff just dont work', but that wasn't to be. We have a broadband cable system installed in our area, with about 140 taps in offices and labs and 5 computer rooms. The initial equipment was connected to the cable and tested. In some cases all was ok, but there where areas of the cable which didn't checkout correctly. We thought that is was the LAN equipment, because the cable was so simple (we have no amplifiers). The company who set up the cable system, had checked signal levels at all output points and decided that there were 2 faulty tap box's. On a visual inspection of a hybrid splitter it was noticed to be connected the wrong way around. Unbolting and bolting up again solved the problem and all seems ok now. So if you are getting a broadband system, make sure that everything is checked out, because with unterminated ends and errors like ours, it all seems to be ok (signal level's are correct) but there may be reflections which make packets of data just go into oblivion. One other point, we got the tap points checked with a spectrum analyzer which shows what state the signal is in (much better that just a level reading).

I would like to know from anybody who is using snap in F connectors, as apposed to normal screw in type. We have these type and it seems that it was a bad idea, they keep on proving they are "snap out connectors".

martin levy HO(201-949)-2787

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