08-19-2010 1:30 PM
They just installed a new buried drop with twisted pair and a new INID. The INID is being used with a single pair instead of bonding. Can someone tell what this bit loading screen shot means? The first spike at about 200 mhz?
08-19-2010 1:48 PM
VDSL doesn't go that high (200Mhz)
(not seeing the picture yet)
08-20-2010 7:51 AM
Your bitloading is normal for an iNID installation with a single line.
iNID installations preferentially use a very low frequency range (40 - 138 kHz) for the upload spectrum. This is done to increase service distance. Normally, both lines of the pair-bonded installation use this range and combined together, they get around 1.5 Mbps of upload bandwidth.
Your installation can't get enough upload bits in that low range with only 1 line, so some additional upload bandwidth is allocated in the 4+ MHz range.
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