Doctor Olds
I Need A Remedy For What's Ailing Me.
Premium,VIP
join:2001-04-19
1970 442 W30
clubs:
| What about Annex J and Annex M? Are they not offered?
ADSL2 and ADSL2+ can handle up to 3.5 Mbps on the Upstream if they use the Annex J or Annex M versions.
I wonder why they don't?
If Quest were truly fiber, it could easily be synchronous speeds Up and Down. Then even 10/10 would be sweet!!!
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dynodb
Premium,VIP
join:2004-04-21
Minneapolis, MN | Use your l33t Google skills and you'll have the answer. To my knowledge, annex M hasn't been adopted in North America yet. ADSL2 is a dead standard due in part to it's 12M limit. |
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quetwo
That VoIP Guy
Premium
join:2004-09-04
East Lansing, MI | reply to Doctor Olds
Why is it that people only do research on ASDL? What every happend to ReachDSL, VDSL, SDSL, etc?
5 years ago, I had a 2/2 SDSL from a CLEC. Worked great. |
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pog
Premium
join:2004-06-03
Kihei, HI
 ·Hawaiian Telcom
| vdsl, vdsl2
Not sure exactly, but I thought AT&T and Quest were deploying FTTN and then VDSL and VDSL2 to the home. I've also read that Verizon has used VDSL2 in MDUs where fiber wasn't practical.
Does this mean anything to those of us stuck at lower speeds? Probably not.
I can't get more than 3/768 out of my CO... even though my provider (Hawaiian Telcom) announced 7/1 and 11/1 packages almost a year ago. At this point, 1mbit up is not really enough even... but the primary competition (RR) offers the same unless I get a business account. IOW, nothing much is likely to change here.
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Doctor Olds
I Need A Remedy For What's Ailing Me.
Premium,VIP
join:2001-04-19
1970 442 W30
clubs:
| reply to dynodb
Re: What about Annex J and Annex M? Are they not offered?
said by dynodb  :Use your l33t Google skills and you'll have the answer. To my knowledge, annex M hasn't been adopted in North America yet. ADSL2 is a dead standard due in part to it's 12M limit. Right.  Like Google reveals what the CEO, the Management and Development Team plans are as they daily blog about their previous days business plans, hardware procurements, lab tests, and final decisions.
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What’s the point of owning a supercar if you can’t scare yourself stupid from time to time? |
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Doctor Olds
I Need A Remedy For What's Ailing Me.
Premium,VIP
join:2001-04-19
1970 442 W30
clubs:
| reply to quetwo
said by quetwo :Why is it that people only do research on ASDL? What every happend to ReachDSL, VDSL, SDSL, etc? 5 years ago, I had a 2/2 SDSL from a CLEC. Worked great. Look at the chart for "Annex L" as that is there now.
SDSL is limited to 2.3 Mbps last I checked and unlike ADSL, it can't co-exist with conventional POTS on the same loop as it takes over the entire bandwidth.
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What’s the point of owning a supercar if you can’t scare yourself stupid from time to time? |
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quetwo
That VoIP Guy
Premium
join:2004-09-04
East Lansing, MI
| That is not true either. SDSL, from what was deployed out at my location (Lucent Technologies branded) was supposed to have a 6/6 max, and allowed for dialtone over the same wire.
I have a friend down the street from me who has ACD.NET as their CLEC, and is supposed to have a 12/12 service. I know he is faster than my Comcast connection. |
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patcat88
join:2002-04-05
Jamaica, NY
| reply to quetwo
said by quetwo :Why is it that people only do research on ASDL? What every happend to ReachDSL, VDSL, SDSL, etc? 5 years ago, I had a 2/2 SDSL from a CLEC. Worked great. SDSL bastardizes T1. Would a telco get $200 a month on a SDSL or $500 a month on a slower T1?
I miss RADSL, it can reassign the channels from downstream to upstream on the fly, so your download will slow down, but your upload will speed up. |
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djweis
join:2006-04-02
West Des Moines, IA | reply to Doctor Olds
Annex M gets the larger upstream by putting it in the portion of the spectrum used by voice - they can't coexist on the same loop.
OTOH, Annex M works great and is deployed and working in the US. |
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Doctor Olds
I Need A Remedy For What's Ailing Me.
Premium,VIP
join:2001-04-19
1970 442 W30
clubs:
2 edits | reply to quetwo
said by quetwo :That is not true either. SDSL, from what was deployed out at my location (Lucent Technologies branded) was supposed to have a 6/6 max, and allowed for dialtone over the same wire. That is not accurate for single pair SDSL that I can document anywhere. And standardized SDSL does not have voice available on the same pair as the POTS frequencies are in use. Now VoIP would have worked, but not POTS. SDSL is 2.3 Mbps Up/Down maximum. Even Lucent agrees when I checked their SDSL offerings.
 DSL-HST_data···heet.pdf 130263 bytes
»Bandwidth »What is the maximum speed for SDSL?
said by quetwo :I have a friend down the street from me who has ACD.NET as their CLEC, and is supposed to have a 12/12 service. I know he is faster than my Comcast connection. Of course he does if that is Fiber, not SDSL. Now if he has ADSL2+ their best is 12/1.5 instead not 12/12.
»www.acd.net/
quote:
ACD.net Announces In-House Fiber Engineering Department
ACD.net owns and maintains hundreds of route miles of fiber in Michigan communities. The metro fiber connects our statewide network to give businesses, institutions, and other telecommunication carriers access to ACD's high bandwidth and redundant backbone, ACD's MPLS network, and ACD.net's telephone services.
See? ADSL2+ Only is 12/1.5 as they don't offer 12/12 ADSL/SDSL.
»www.acd.net/broadband_res.cfm
quote:
ACD.net 12Mbps ADSL2+ Broadband
Up to 12Mbps download and 1.5Mbps upload speeds
Now I did find this below and they claim something at 5.7 Mbps is SDSL, but don't confirm/deny whether it is a bonded lines (4 wire paired or more) setup which it sounds very much like since they do offer bonded setups.
»www.acd.net/connections.cfm
quote:
SDSL Solutions
With upload speeds as fast as download this is the ideal solution for businesses sharing data over the web or for people who regularly upload large files. Significantly cheaper than traditional leased lines with virtually no difference in performance.
• Fixed 24 hour un-metered internet connection.
• Up to 5.7Mbps bandwidths available
You will note that is still very, very much short of 12/12 SDSL as you posted.
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