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Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here
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To: MikeM54321 who wrote (7364)6/26/2000 7:11:00 PM
From: DenverTechie  Read Replies (1) of 12823
 
The powering device you are describing is known in cable as a "house amp".

Mike, it's in common use in the MDU world of cable. It's used to boost the signal in things like high rise apartment buildings where the line amps run out of juice, but they have to get signal distributed throughout the building. Voile! House amp to the rescue. Electroline is a major supplier of this, along with splitters, taps, mostly passive devices for cable plant. The house amp is one of their few active devices that sells well. But their business is mostly high volume, low margin stuff.

As far as surge protection for lifeline cable telephony is concerned, yes it is true that power can come from a centrally located power distribution node located in the network. It can also come from a home mounted local power source with battery backup (AT&T has several properties set up this way currently). All the SOTH (side-of-the-home)NIU (network interface unit) devices out there provide all the surge protection you could ever want within their own housings, especially the Cornerstone Voice Port. It includes gas tube protection, ground blocks, etc. and meets every surge protection requirement of the NEC and NESC ever created. So the need for surge protection need created by cable telephony does not really exist. If surge protection is needed in a cable network, it is for the same reasons it has always existed, to protect the network and the power supplies from lightning strikes and such. Cable telephony does not create a sudden, new "need" as such for this device.

Hope that makes sense, and clears up the mystery of the house amp and how they boosted your signal so cleverly. Cable - it's not just for breakfast (video) anymore.
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