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From: gandrews@netcom.COM (Greg Andrews)
Newsgroups: comp.dcom.modems
Subject: Re: RFI: Racal-Milgo RM-1822DS (A repackaged Telebit)
Summary: It's a TrailBlazer (no, not a Plus, just a 'Blazer).
Keywords: Racal-Milgo RM-1822DS Telebit PEP
Message-ID: <1991Jun4.063614.22592@netcom.COM>
Date: 4 Jun 91 06:36:14 GMT
References: <59896@aurs01.UUCP>
Organization: Netcom - Online Communication Services  UNIX System {408 241-9760 guest}
Lines: 61

In article <59896@aurs01.UUCP> roberson@aurs01.uucp (Charles "Chip" Roberson) writes:
>I have an opportunity to buy a surplus Racal-Milgo RM-1822DS which,
>apparently, is a repackaged Telebit.  However, I'm not sure which
>Telebit it is.
>

It's equivalent to a TrailBlazer.  Not a TrailBlazer Plus, but the original 
TrailBlazer.

>
>The Telebit "Packetized Ensemble Protocol Modem" documentation is
>dated:
>
>	Firmware Release 3,	October 1987.
>

That's good.  Version AA3.01-AB3.00 (aka Version 3), was the last version
released for the original TrailBlazer.  It would appear that this modem
has been upgraded at some time in the past.

Version 3 had the main characteristics of present-day Telebit modems.
Protocol Support, oodles of S-registers, MNP3 (and a bit of MNP4), and
PEP, though PEP Data Compression is not supported.

>
>Does anybody know if this is just an exterior repackaging, or has
>Racal-Milgo done anything special to the modem?
>

Nothing out of the ordinary about it, especially if it has the Ver 3
firmware chips installed.  You can find out by entering the ATI3 command.

>
>I would imagine the Firmware has been updated since then.  What does
>it take to get it updated and can it be upgraded?
>

The highest firmware version is the AA3.01-AB3.00 I mentioned before.
There is a trade-in to a T2500 available, but the price may be more
than you might pay some of the mail-order sources for the same modem.
Check with Telebit tech support if you want to investigate that option.

>
>Who is Racal-Milgo?  I've heard of Racal-Vadic (sp?) but not -Milgo.
>If these guys still exist, are they known for their service or can
>I just skip them and go to Telebit (who is somebody I know better)?
>

Milgo is another division of Racal.  I believe Vadic made lower speed
modems and Milgo made higher speed ones - at least for a while.  (one 
reason they OEM'ed the TB from Telebit)  Modems aren't the only products 
Milgo makes, but I don't know too much about them.


>* Chip Roberson, RD&E  -*-  Internet Domain:  <roberson%aurgate@mcnc.org> *

-- 
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 |  Greg Andrews   |       UUCP: {apple,amdahl,claris}!netcom!gandrews    |
 |                 |   Internet: gandrews@netcom.COM                      |
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