56k how? Summary please! (fwd)

MegaZone (megazone@livingston.com)
Tue, 19 Aug 1997 20:55:05 -0700 (PDT)

Once upon a time Fraser Campbell shaped the electrons to say...
>We have PM2eR-30s. I have seen a message on this list saying that they
>can support 56k modems - is this true or do we have to upgrade to PM3s?

56K *REQUIRES* a digital connection.

Sure, you could buy a modem rack that takes BRI, PRI, or chanT1 and plug
that into a PM-2. But you still have the complications of cabling and
not having the modems in one managable chassis. And the bottle neck of
the async loop. And more space used. And more power draw and heat.

In the end going to a unified chassis is the best move. And if you have
PM-2s now, there is the trade in deal.

>Also, can someone explain what is required to implement 56k ...
>channelized T1? How would this get split into individual lines and then
>connect to non-digital modems? Can someone point me to a good web page

You can't, period. You must have digital modems on you end. No way
around that.

-MZ

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