SUMMARY: Modem on a Netra T1

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The original question can be found at the end.

I received two replies so far and they are both suggesting
that it is impossible to have a modem on a T1, at least if
you want HW handshaking. I've contacted Sun on this but haven't
received an answer yet so for now I'm going to assume it can't
be done. If I get any other information I will send an updated
summary.

Thanks to Jim Blevins and Celeste Stokely for their advice:

> From: JIM BLEVINS <JIM.BLEVINS@calix.com>
> To: "'Mikael Nordstrom'" <mikael.nordstrom@cellpoint.com>
> Subject: RE: Modem on a Netra T1
> Date: Tue, 7 Aug 2001 10:01:32 -0700
>
> I don't have the bug number in front of me but suffice to say I went thru
> the same thing.  Talking to SUN they said "the netra t1' serial port was
not
> ever going to work with a modem and there were no plans to change it."
>
> -jim
----------------------------------------------------------------------------
-
> From: "Celeste Stokely" <celeste@stokely.com>
> To: <mn@cellpt.com>
> Subject: Re: Modem on a Netra T1
> Date: Tue, 7 Aug 2001 12:05:21 -0600
>
> The Netra T1 RJ45 serial port pinout is a bit odd. It's at
>
http://www.stokely.com/unix.serial.port.resources/A-B-Ycablepinout.html#netr
at1105.link
> And yes, I see no DCD - yikes! I had never realized that.
>
> It is as if the Netra T1 can not be connected to a modem, and
> you would have to use an extra serial port card. (Say it ain't
> so, Sun!) You might need to call Sun Tech Support to find out
> the definitive truth.
>
> I have no answer for your problem, and a new search on all my
> sources turns up nothing. If you get it figured out, please let
> me know so I can inform the rest of the world. Best of luck!
>
> ..Celeste Stokely, Stokely Consulting, celeste@stokely.com


Original question
------------------
> Sorry if this is a FAQ or if it has been answered before but
> I've been searching everywhere and have not been able to find
> a solution.
>
> My challenge is to enable a dial-in service on a Netra T1 through
> a USR 56K modem connected to port b.
>
> I have followed Celeste's tutorial on www.stokely.com on how to setup
> a bi-directional modem to the letter and I think I have managed to get
> quite far. I can tip to the modem from the Sun and I can call the modem
> from the remote machine and the modem answers the call but I can't get
> a login prompt. For some reason it seems as if the port monitor does not
> spawn a login process.
>
> I'm starting to think that maybe there are not enough pins in the T1's
> RJ45 serial port. The DCD pin is missing for one. Could this require
> special configuration?
>
> If anyone have any ideas I would be forever grateful.
>
> Thanks,
> /Mikael
+-------------------------------------------------
| Mikael Nordstrm       |  CellPoint Systems AB
| Systems Administrator  |  Phone: +46-8 6332718
| e-mail: mn@cellpt.com <mailto:mn@cellpt.com>   |  Mobile: +46-73 9737734


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