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Posted Aug 19, 2010
1:30:12 PM
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Bit Loading on New INID

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?

 

 

 

 

2160iD8E181EFA0C02F87

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?

 

 

 

 

2160iD8E181EFA0C02F87

Bit Loading on New INID

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Aug 19, 2010 1:46:51 PM
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ACE - Expert

Your photo has not been approved yet.  Someone will be along to interpret it for you afterwards.

Your photo has not been approved yet.  Someone will be along to interpret it for you afterwards.

*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.

Re: Bit Loading on New INID

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Aug 19, 2010 1:48:53 PM
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Employee

VDSL doesn't go that high (200Mhz)

 

(not seeing the picture yet)

 

VDSL doesn't go that high (200Mhz)

 

(not seeing the picture yet)

 

Sent from my phone.
*I am an AT&T employee and the postings on this site are my own and don’t necessarily represent AT&T’s position, strategies or opinions.

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Aug 19, 2010 3:34:13 PM
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Should have been .2MHZ

Should have been .2MHZ

Re: Bit Loading on New INID

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Aug 20, 2010 7:51:36 AM
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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.

 

 

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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