Re: x2 with a PM2E
alexm@agetech.net
Fri, 20 Dec 1996 08:11:26 -0500
John Powell wrote:
>
> Megazone spake....
>
> >Once upon a time Andy Thaggard shaped the electrons to say...
> >>Anyone figure out how to use USR Externals with a PM2E for X2 support?
> >>USR told me I would have to chuck my current setup and buy a whole new
> >>system...
> >
> >To handle 56K the central site MUST have a digital carrier. This is
> >primarily going to be PRI and Channelized-T1 lines connected to units
> >like the PM-3 or Ascend MAX. However, a BRI line would seem to allow
> >for the digital channel needed.
>
> Indeed it does. A BRI is as "trunk side" as it gets. The B channels
> are pure digital.
>
> >If your USR externals will accept a BRI line (I don't think they will, but..)
> >then you can use them to terminate the call.
> >
> >But chances are you'll either need to pick up something like the Courier
> >I-modem to handle BRI lines - and I'm not sure that will terminate 56K.
>
> Indeed the entire USR I-modem family will support x2 56K analog server
> mode.
>
> 2E users can front-end it with the USR MP I-modem. It will take
> digital calls and analog calls dynamically on each port. It will
> definitely support x2, and be flash upgradeable when a standard is
> agreed upon. I personally expect the standard to take a long time, so
> I would not want to wait that long to get something implemented for
> your customer base.
>
> Also, the analysts seem to think that USR has a 6 month jump on
> Rockwell/Lucent, and as it is a flash process with USR (as opposed to
> a hardware swap for Rockwell/Lucent hosts) widescale deployment of x2
> will be much, much faster. Probably on the order of a full year in
> many areas.
>
> Lastly is the problem of when a standard is agreed upon, many
> rockwell/Lucent users will have to upgrade their hardware again, with
> USR it is a flash. Even if they pull off a flash process, that is new
> to many of them (not USR), and they will be fighting those issues
> along with catching up on 56K technology.
>
> This will be a simple upgrade for 2E users without having to trash
> your entire setup! Basically, don't trash your 2Es, just upgrade the
> front-end with an MP I-modem (or single I-modem to try it out).
>
> snip
>
> >Eventually the ITU-T will produce a standard and we'll support that.
>
> And be left in the dust!
Does anyone have any beta code to try on the couriers. Right now I have
a courier I-modem and I would like to try it out with my courier v.
everything.