🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: vmsnet.misc
Article #297

Re: Need faster async board...dlv11-J? Something else?

#297
From: Terry Kennedy, Operations Mgr.
Date: Tue, 12 Jan 1993 06:27
29 lines
1865 bytes
In article <1993Jan11.160754.1011@dragon.com>, cts@dragon.com writes:
> I have various MicroVAX II systems with Telebit worldblazers attached.
> Currently, these are using DHV11 interfaces, which top out at 19.2 kb.
> It appears this is the bottleneck;  what options exist for getting faster
> speeds on an MVII, if any?

  One of my UUCP leaf sites has an MVII with a DHV11. That system is pretty
busy, yet they average 1350+ CPS using DECUS UUCP.

> The top speed of the DHV/DHQ/DZQ appears to be 19.2;  the only board
> that's 38.4 capable for the Qbus is the CXY08, and it looks like this
> board isn't supported on the MVII.

  The CXY08 is an S-box version of the DHQ11. Functionality should be iden-
tical.

> Any suggestions?  I've considered getting a DLV11-J, and adapting the
> driver from the decus tape;  however, I'd rather have a DMA capable
> device....

  Bleh! DL11's have no silos and are interrupt-per-character. If you're going
to go through the trouble of doing a driver, either get a KXT11/KXJ11 and do
it on a coprocessor or buy a complete kit from Simpact. If you want a more
"stock" solution, get an Ethernet board (if you don't already have one) and a
DECserver 700.

	Terry Kennedy		Operations Manager, Academic Computing
	terry@spcvxa.bitnet	St. Peter's College, Jersey City, NJ USA
	terry@spcvxa.spc.edu	+1 201 915 9381
Technical Details
Message-ID: <1993Jan12.012742.4880@spcvxb.spc.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!destroyer!gumby!yale!yale.edu!jvnc.net!newsserver.jvnc.net!rutgers!spcvxb!terry
References: <1993Jan11.160754.1011@dragon.com>

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!destroyer!gumby!yale!yale.edu!jvnc.net!newsserver.jvnc.net!rutgers!spcvxb!terry
From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
Newsgroups: vmsnet.misc,vmsnet.internals,comp.sys.dec,comp.org.decus
Subject: Re: Need faster async board...dlv11-J?  Something else?
Message-ID: <1993Jan12.012742.4880@spcvxb.spc.edu>
Date: 12 Jan 93 06:27:42 GMT
References: <1993Jan11.160754.1011@dragon.com>
Organization: St. Peter's College, US
Lines: 29