 gar187erI DID this for a living
join:2006-06-24
Seattle, WA |
[NodePlus0] Cisco GS7000 Node (N+0 deployment)For those curious, here are a couple quick pictures of the guts for the new Cisco nodes we are installing in Seattle. Id be happy to answer any questions regarding these. My response time may vary; some days are crazy with cut-ins, others arent for reasons beyond my control. These are a 1.2ghz mid split configuration. The one in the picture obviously has not been optimized; Ran into a major issue, no forward light. |
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Anon2a973
Anon
2017-Jun-20 9:11 pm
How much output power you will operate these nodes? I see in the data sheet they can output (analog) 64 dBmV at 1218 MHz and 60 dBmV at 1002 MHz, is that correct? |
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ARRIS S33
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to gar187er
said by gar187er:These are a 1.2ghz mid split configuration. The one in the picture obviously has not been optimized; Ran into a major issue, no forward light. while it is finally cool to see some extra frequency in the upload direction, why did comcast only choose mid split? even with that it doesnt support a full gig upload. i dont understand, seeing how its pretty common to have like 750mhz max, theres like 450mhz extra download, and they could only allocate 43mhz of that to upstream? |
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gar187erI DID this for a living
join:2006-06-24
Seattle, WA
1 edit |
to Anon2a973
Ours are running 36(edit)/57, and that's measured digitally which is 6db down from an analog carrier, so yes those levels are correct. These things are smoking hot. |
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| gar187er |
to videomatic3
I think with the time frame to roll these out system wide, they didnt see a need to invest in the high split just yet. Hell by that time full duplex will be in the test phase, so perhaps just roll right into that...I really dont know. |
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Anon2cd07 to gar187er
Anon
2017-Jun-21 1:39 pm
to gar187er
said by gar187er:Ours are running 46/57, and that's measured digitally which is 6db down from an analog carrier, so yes those levels are correct. These things are smoking hot. so 57db on the high end and 46 on the low end? |
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gar187erI DID this for a living
join:2006-06-24
Seattle, WA
1 edit |
Yup that is correct, sorry should have been more clear. correction 36/57 i have too many numbers on my brain.  |
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 tshirt
Premium Member
join:2004-07-11
Snohomish, WA |
tshirt
Premium Member
2017-Jun-21 2:57 pm
and these will serve 80-120 (less then 128) subs? as you are currently deploying them? |
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to gar187er
How close are you to equip it with remote PHY? |
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gar187erI DID this for a living
join:2006-06-24
Seattle, WA |
to tshirt
said by tshirt:(less then 128) subs? Correct. The current set of child nodes we are cutting in this week sub counts range from 40 to 127. However a couple of the smaller ones are still going to be combined up at the CMTS. |
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| gar187er |
to Franken
well the timing of going R-PHY is wayyyy above my pay grade thats for sure. But for the field, its a module that goes in the lid, and there is a dial on the board (middle/lower left) that we turn and BAM. There is no word on when it would happen. |
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Anon2d2e5 to gar187er
Anon
2017-Jun-21 5:31 pm
to gar187er
said by gar187er:Ours are running 46/57, and that's measured digitally which is 6db down from an analog carrier, so yes those levels are correct. These things are smoking hot. I would think there would be more than an 11 db tilt for 1.2ghz system. The systems I have worked are 7db for 550mhz, 10db for 750mhz and 12db for 860mhz. what are current 860mhz nodes running at? |
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gar187erI DID this for a living
join:2006-06-24
Seattle, WA |
Ooops didnt even realize the typo 36/57 21db of tilt. |
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1 edit |
to gar187er
They are nice nodes! We start in a few weeks. |
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gar187erI DID this for a living
join:2006-06-24
Seattle, WA |
said by Cable Employ:They are nice nodes! We start in a few weeks. good luck and god speed to you...... |
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Anone28fe to gar187er
Anon
2017-Jun-24 3:50 pm
to gar187er
@gar187er, what levels do currently installed 750/860 nodes run at? |
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