cypherstream
Looking forward to the future of things.
Premium,MVM
join:2004-12-02
Reading, PA
clubs:
| reply to dervari
Re: Multiple nodes on my street?
Our Tap in front of house | 
Comcast line equipment in front of neighbors |
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MadMANN
Premium
join:2005-08-19 | An LE (line extender) is typically used to just boost a signal on a single trunk to make up for loss with length. The amp in your picture is a distribution amp for multiple runs. |
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beerbum
Premium
join:2000-05-06
| reply to cypherstream
the "box" in your second picture.. that's a trunk amp.. generally the 1st amp off the node..
being that you are in Reading PA, more likely or not each node is going to serve between 300-500 homes..
at least that's how it was back in 2001-2002 when they redid the system for HSI (I worked in-house for Comcast at the time).. and pretty much now, in the city proper the node layout is the same today , save for a new node we had put in to serve Albright College in 2003..
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cypherstream
Looking forward to the future of things.
Premium,MVM
join:2004-12-02
Reading, PA
clubs:
1 edit | 300-500 nodes, that's much better than the 1200 I read about in a charter forum. Also last I heard they split a node in sinking spring due to major HSI/VOD usage.
That's cool you know the area. Another guy suggests they are talking about upgrading to 1GHz starting 4th Quarter 2007. Being that the system is now full, they'll have to do something. I've seen those slim line rectangular SA System III amplifiers. I believe the two I saw had four feeders (two on each side) They are long and rectangular in shape. When do they use these, compared to the big white trunk amps? I do know the square SA Line extenders only have 1 input and 1 output. Thanks cableguy, that's the one thing that always confused me -- difference between Amps, trunk amps, and line extenders. The nodes, well I can spot them I guess when I see the fiber splice enclosure and the black fiber input.
I really wish I could see some plant prints for learning purposes. I'm so into the technology and want to know every little detail about it. I don't work in the field because a few reasons. 1) Driving record sucks, 2) I'd take a pay cut 3) I don't like the idea of going into everyone's house.
Plant maintenance or Headend tech would be a neat job, but I would imagine they'd want a few years tech experience. |
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cypherstream
Looking forward to the future of things.
Premium,MVM
join:2004-12-02
Reading, PA
clubs: | reply to beerbum
Bocephus,
Do you know what the amp cascade is in this system? Is it like Fiber => Node => trunk, then trunk amp = > Bridger = > 3 to 5 LE's ? |
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beerbum
Premium
join:2000-05-06
| said by cypherstream  :Bocephus, Do you know what the amp cascade is in this system? Is it like Fiber => Node => trunk, then trunk amp = > Bridger = > 3 to 5 LE's ? depends on the node.. some are fiber, trunk amp, intermediate (forget the tech name) then LE's.. others are node to trunk amp then to LE's..
then throw some splitters and bridgers in the mix.. like I said it all depends on how the node was built out and especially how much signal needs to go along a certain node segment..
my memory is rusty.. it's been a little over 3 yrs since I had access to node maps.. I'm just a lowly contractor now, all that matters to me is enough signal goes to the house to feed all the crap ppl want..
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