re: channel banks

Nathan Stratton (nathan@netrail.net)
Thu, 7 Sep 1995 13:00:04 -0400 (EDT)

On Thu, 7 Sep 1995, Matthew S. Crocker wrote:

> > If your t1 is "too long", has "too many repeaters", or "too many echo
> > cancellers" then the audio quality will be poor. This is the case even
> > though the lines are "digital".
>
> The number of repeaters on a line should have NO effect on the quality of
> the analog signal comming out of the channels. If the line is over 1
> mile long the Telco will install repeaters, Each repeater will push the
> signal another mile. Echo only occurs when you put a repeater on an
> analog circuit.

A lot of telco's are using new HDSL and you only need T1 loop repeater
every 12,000 feet.

> So long as you get a good signal from the Telco and can maintain accurate
> clocking. You should have NO problem with a T1 line quality. Are you
> seeing a lot of Framing errors or Frame slips?

But I will agree with Matt, the number of repeaters or length should have
no effect on T1 line quality. I have had some problems with too many
echo cancellers.

Nathan Stratton CEO, NetRail, Inc. Your Gateway to the World!
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