RE: Emerald, Portmaster2e and USR modems - 56k possible?

Mark A. Knight ( (no email) )
Wed, 28 May 1997 22:28:31 -0700

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Thanks, but, I still have the question of: Why can't my users with 28.8 =
modem connect at 28.8? Sometimes they do, but usually it is around =
26.4. Same thing with my 33.6 users. =20

-----Original Message-----
From: Allen Wisor [SMTP:Allen@nova1.net]
Sent: Wednesday, May 28, 1997 1:12 PM
To: ntisp@emerald.iea.com
Subject: Re: Emerald, Portmaster2e and USR modems - 56k possible?

Chanelized TI has 64K per channel but 8K("D" Channel) is used for
signaling and only=20
leaves you with 56K a channel. A PRI does this but it also can use 1
64k channel("D" Channel) for signaling then the other 23 are 64K. And
even better
if you get ISDN_NFAS signaling that same "D" channel on the first PRI
to control the rest on the same physical piece of equipment. Providing
your local BELL will tarif it.

Mark A. Knight wrote:
>=20
> Since we appear to be on the subject of modems and connection speeds =
today, I have a question that has both bothered and puzzled me for some =
time. I have a max 4000 with 48 digital 33.6 modems. I also have a =
channalized T1 with all 24 pipes going. I have a PRI ISDN on order. =
Problem with the channelized T1 is that I can rarely connect at 28.8 or =
33.6. I usually end up with 24.6 or something like that. Anyone have =
an answer on that one?
>=20
> NT 4.0 (Build 1381-SP3) - MS SQL Server 6.5 - RadiusNT V 1.16.60
> Emerald Client 2.1.8 - Emerald Admin 2.1.0 - Serv-U V2.2 32 Bit
> MailSite Version 1.2.2 - NAS Ascend MAX 4000
> Mark A. Knight - PC Express, Inc
> RadAdmin@Express-Connect.Net
>=20
> -----Original Message-----
> From: Randy Fischer [SMTP:randy@fcs.net]
> Sent: Wednesday, May 28, 1997 11:36 AM
> To: ntisp@emerald.iea.com
> Subject: Re: Emerald, Portmaster2e and USR modems - 56k =
possible?
>=20
> x2 service DEPENDS on a DIGITAL connection between the ISP and the =
Phone
> company. In order to accomplish that you as the ISP must have ISDN =
or PRI
> or a channalized T1 line from the phone company. The equipment that =
will
> support those types of lines at the ISP's site are NOT regular analog
> modems. You CANNOT support incoming x2 connections with ANY analog =
modem
> including USR Couriers or Sportsters.
>=20
> If you wish to jump on the x2 bandwagon then you have to use =
USRobotics
> solutions. The one that I am familier with is the TOTAL CONTROL with
> DIGITAL modems. This solution uses a PRI or T1 and gives 23-24 =
incoming
> lines per T1 connection and will support upto 2 T1's for incoming =
dialup
> connections. USR also has a ISDN solution (I think) that uses BRI =
lines to
> support x2.
>=20
> Livingston PM3 is also a way to go. This solution does not address x2
> directly but is a similar way to setup for the 56k fad. It also =
requires a
> DIGITAL connection to the Phone company.
>=20
> The x2 / 56flex fight is just beginning. The result should be a =
standard
> that both USR and the REST of the world can support. Choosing USR =
will
> give you x2 now with a promise of the STANDARD later. The advantage =
is
> that many (NOT ALL) existing USR modems can be upgraded to x2. If you =
use
> USR's solution you can give your users 56k now. When the standard is
> settled on and everyone adopts it then it will not matter which ISP =
side
> solution you have chosen.
>=20
> I personally feel that the Livingston solution is much more elegant. =
It
> uses state of the art components and is MUCH smaller, lighter, quieter =
and
> cooler than a USR total control. But to make your existing USR users =
happy
> will take awhile while the standard gets hashed out. Which is why I =
chose
> to use the USR total control for my first device and will use PM3's =
for all
> my expansion.
> ----------
> > From: Franco Nogarin <webmaster@auroranet.nt.ca>
> > To: 'NTISP@emerald.iea.com'
> > Subject: Emerald, Portmaster2e and USR modems - 56k possible?
> > Date: Wednesday, May 28, 1997 10:50 AM
> >
> > I feel doomed here, I have committed to Emerald, Livingston and USR. =
now
> I want 56k and it seems impossible.
> >
> > 1. I have a portmaster2e with 10 analog ports authenticating to =
emerald.
> > 2. on those 10 ports are 10 sportster 33.6 modems (X2)
> > 3. Our telco's local lines cannot handle ISDN
> > 4. 80% of the customer base is X2
> > knowing thses things, is it possible to run X2 modems on a pm2e?
> >
> > USR says not with Sportsters, it says that you need total control =
modems.
> >
> > Anyone have any ideas?
> >
> > Franco Nogarin
> > Cascade-AuroraNet-WebSpinners
> > webmaster@auroranet.nt.ca
> >
> >
> > ----------------------------------------------------------
> > NTISP Mailing List listserver@emerald.iea.com
>=20
> ----------------------------------------------------------
> NTISP Mailing List listserver@emerald.iea.com
>=20
> ---------------------------------------------------------------
>=20
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--=20
Allen Wisor
Allen@nova1.net
Nova Internet Services, Inc.
Ph(214)904-9600 Fx(214)357-1431

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NTISP Mailing List listserver@emerald.iea.com

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