I believe these are the 90M requirements:
Cat5e from NID (Network Interface Device) to gateway modem (PACE 5268AC).
Bonded pairs? Yes.
17a profile? Protocol field shows 17a at the end for each pair, which I assume means it's the 17a profile.
K or N card? Must be since the modem is returning upstream data.
Anyone know if the DSLAM (Digital Subscriber Line Access Multiplexer) vendor information reveal the card type? BDCM = Broadcom, but that's all I could find.
DSLAM is the card in the VRAD(Video-Read Access Device), correct? When people use the term VRAD here, they're really talking about the cabinet location where the DSLAM card is plugged in, right? The place where fiber stops and copper beings.
Max Down sync should be 125% of profile, so 90M should have a max sync of at least 112.5M.
DSL Aggregate numbers from the modem shows 148.9M
The extra 25% is necessary for the interleaved channels extra FEC (Forward Error Correction) traffic, correct?
From my research, any noise margin 15dB or above is good and that upgrading to a faster profile means a drop of about 5dB. If I use the lowest number here, (21.6) and subtract 5 from that, I still get 16.6 which is above 15.
Distance to the VRAD should be "short" which may mean less than 2000ft? or 1700ft? I couldn't find anything definitive.
Attenuation @ 300kHz for pair one is 6.2 dB. This formula has been passed around as a way to estimate distance:
(6.2dB/13.87dB) x 3300ft = 1475ft for pair one.
Attenuation @ 300kHz for pair two is 4.7 dB.
(4.7dB/13.87dB) x 3300ft = 1118ft for pair two.
Note however that if I use maps.google.com's "measurement" feature and place waypoints from my house, to the telephone poles, to the VRAD, the distance is actually closer to 1800ft.
My assumption is that either that formula is wrong, or the gauge of the wire is larger. If I swap out the 13.87 (used for 26 AWG wire) with 11.90 (used for 24 AWG wire) I get numbers that are closer to actual:
1719 for pair 1
1303 for pair 2... Hmm.. maybe pair 2 is using 8.62 (22 AWG)? 1799? Doesn't seem likely, right?
No DSL errors in statistics for the past 14 hours.
All of this equals a green light for 75/8, right?
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