Newsgroups: comp.sys.hp
Path: utzoo!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!think.com!cuff!vic
From: vic@cuff.uucp (Victor Berry)
Subject: Asynch Port on HP9000 345
Message-ID: <1991Mar18.162849.27463@cuff.uucp>
Organization: DMR Wellesly, MA
Date: Mon, 18 Mar 91 16:28:49 GMT

We have a HP 9000 model 345, that we use for access, via UUCP, to the world.
There is no expansion chassis and we are confined to the  98626 serial
interface.  The problem is that in the termio definition in section 7 of the
manual the following quote appears.

"Data Loss can occur with the HP 98626/98644 serial interfaces if the 
effective combined data rate for all installed serial interfaces exceeds
2400 baud (for example, two interfaces running at 1200 baud and a third at 300
baud is equivalent to 2700 baud combined)"

You read that right...  SLOW.

This interface has no problem in the outward direction.  We could talk out
at 9600 all day long.  The difficulty lies in incoming data.  It will and
does lose data at speeds above 2400. We actually run it at 4800 but it 
times out frequently.

My question is:
--------------

Does anyone out there in netland know of a way to speed this port up?


Hopefully there is a patch or something.  We have noted that the port
ceases to function when the disk spins.  So I would also be interested
in any info I could get on RAM Disks for the HP.

We really like the News and UUCP access we get from it but 2400 baud from
a multi-thousand dollar machine seems a bit ridiculous.
-- 
--

 Is that real poncho, or is that a _Sears_ poncho?