Ascend Archive
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Re: (ASCEND) K56..
At 01:07 PM 11/26/97 -0600, Andy Walden wrote:
>
>On Wed, 26 Nov 1997, Matt Holdrege wrote:
>
>> At 09:35 AM 11/26/97 -0600, Andy Walden wrote:
>> >I have been doing some comparisons and keeping track of numbers lately, it
>> >appears we aren't getting crap for 56k connections. We currently run
>> >channelized T1s with AMI and D4 on them. I am running some in with B8ZS
>> >and ESF for testing. I seriously can't imagine that making all the
>> >difference though. I do have a competitor, runs Livingston, as well as
>> >AMI/D4 and claims he is getting 48-52000 most of the time. Any
>> >suggestions?
>>
>> You need to make sure there are no A/D conversions on your T1. It must be
>> trunk side and digital all the way. I prefer to visit the C.O. myself and
>> trace the wire. :)
>
>
>I'm pretty sure that there are not, but what would tell me. We are the C/O
>for some of our modems and should be able to figure it out. Some of our
>lines currently go through a DAX, would tha be an A/D conversion? I have
>actually asked this question several times of some of the telco folk and
>they are for the most part convinced it should be straight though.
I think there is some kind of new reporting in AT&V1 or 2 that shows if you
have a digital path. Maybe someone knows more?
A DACS does not convert to analog. You need to make sure you leave the
egress switch at a digital trunk interface. There should be no channel
banks involved. The T1 should be clean end to end.
Matt Holdrege http://www.ascend.com matt@ascend.com
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