DEC Server 700
Frank A. Scroggs
Does anyone have any configuration tips for setting up a DECServer 700
running NAS 1.5 I have a couple of them at my site and am having a
little trouble in getting the baud rates on the ports correct. Some
ports seem to work at 115.2 and 19200 as an alternate but generally
connect at 19.2
I would like to force the serial port to 115.2 and let the modems
connect at whatever they can. When I use autobaud it looks as if the
ports speed get no higher than 38400.
Any suggestions?
Frank
Aaron Leonard
I don't know anything about DS700s per se, but, yeah, autobaud
doesn't work in general at speeds > 38.4Kbps.
In general, when hooking up modern modems to modern terminal
servers, you want to:
- lock the serial ports on the modems & comm server at the highest
mutually supported speed (57.6Kbps to 115.2Kbps). DON'T autobaud.
- enable hardware (CTS/RTS) flow control on the serial ports.
Aaron
Aaron Leonard aa...@cisco.com [ work ]
Aa...@Leonard.Tucson.AZ.US [ home ]
Richard S. Cecchini
Frank A. Scroggs wrote:
>
> Does anyone have any configuration tips for setting up a DECServer 700
> running NAS 1.5 I have a couple of them at my site and am having a
> little trouble in getting the baud rates on the ports correct. Some
> ports seem to work at 115.2 and 19200 as an alternate but generally
> connect at 19.2
> I would like to force the serial port to 115.2 and let the modems
> connect at whatever they can. When I use autobaud it looks as if the
> ports speed get no higher than 38400.
>
> Any suggestions?
>
> Frank
I believe the DECserver 700 is incapable of supporting line speeds above
38,400. It doesn't matter what you set the ports at. Just a side
note, the DECserver700 was designed and manufactured by
Penril/Datability (now Access Beyond) for DEC.
Javier Henderson
In comp.sys.dec "Richard S. Cecchini" <cecc...@mn.frontiercomm.net> wrote:
> I believe the DECserver 700 is incapable of supporting line speeds above
> 38,400. It doesn't matter what you set the ports at. Just a side
> note, the DECserver700 was designed and manufactured by
> Penril/Datability (now Access Beyond) for DEC.
I don't know about the origins of the DS700, but it certainly supports DTE
speeds of 115,200 bauds. I've one here with three 28.8 modems, with the
ports locked at that speed. It works fine.
--
-javier
Terry Kennedy
Richard S. Cecchini <cecc...@mn.frontiercomm.net> writes:
> I believe the DECserver 700 is incapable of supporting line speeds above
> 38,400. It doesn't matter what you set the ports at. Just a side
> note, the DECserver700 was designed and manufactured by
> Penril/Datability (now Access Beyond) for DEC.
May I humbly suggest that you don't have the foggiest idea what you're
talking about?
The DS700 happily supports line speeds up to 115200 on all ports.
Regarding the origins of the DS700, they have nothing to do with the folks
at Datability. The DS700 hardware is in the DS200 tradition with modern parts.
The software is a bit of an abomination because it's a mishmash of the DS200
code, Berkeley BIND code, TCP/IP, Kerberos, and so forth. This is particular-
ly obvious in the command parser.
I've used Datability servers and while the DS700 has its flaws, it's far
better than the Datability units I've used.
Oh, and lots of DS700's were manufactured in DEC's Galway, Ireland plant -
when that plant was closed by DEC, DS700's were dumped on the surplus market
for incredibly low prices.
Terry Kennedy Operations Manager, Academic Computing
te...@spcvxa.spc.edu St. Peter's College, Jersey City, NJ USA
+1 201 915 9381 (voice) +1 201 435-3662 (FAX)
Loren Albright
Terry Kennedy <te...@spcuna.spc.edu> wrote in article
<E5qtA...@spcuna.spc.edu>...
| Richard S. Cecchini <cecc...@mn.frontiercomm.net> writes:
| > I believe the DECserver 700 is incapable of supporting line speeds
above
| > 38,400. It doesn't matter what you set the ports at. Just a side
| > note, the DECserver700 was designed and manufactured by
| > Penril/Datability (now Access Beyond) for DEC.
|
not designed by Penril/Datability. I know, I work for DEC and was on the
original design team, and still on the DECserver design team.
All DECserver 700/900's support 115200 quite nicely, thank you. Regarding
the problem that started this thread, you might try turning off autobauding
on the DECserver and fixing the speed to 115200. Also, if you can, fix the
modem speed to 115200. These sorts of problems occur with both the
DECserver and the modem are trying to autobaud at the same time. I've
hooked lots of modems to DECservers and found it best to fix the speeds.