From owner-freebsd-hardware Fri Jun 28 22:05:12 1996 Return-Path: owner-hardware Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id WAA05213 for hardware-outgoing; Fri, 28 Jun 1996 22:05:12 -0700 (PDT) Received: from lynx.its.unimelb.edu.au (lynx.its.unimelb.EDU.AU [128.250.20.151]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id WAA05208 for ; Fri, 28 Jun 1996 22:05:09 -0700 (PDT) Received: (from danny@localhost) by lynx.its.unimelb.edu.au (8.6.11/8.6.9) id PAA04316; Sat, 29 Jun 1996 15:05:02 +1000 Date: Sat, 29 Jun 1996 15:05:01 +1000 (EST) From: "Daniel O'Callaghan" To: Kevin Swanson cc: freebsd-hardware@freebsd.org Subject: Re: muliport boards - building a PPP dialup server In-Reply-To: <9606281800.AA05807@BLaCKSMITH.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hardware@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Fri, 28 Jun 1996, Kevin Swanson wrote: > I was told by Digi that their "dumb" 8-port boards (PC/8), could only go up > to 19.2 KBps if you used 16550's. This doesn't sound right based on some of > the responses I've been getting. > > Someone mentioned using a Cyclades-8 port serial card at 115.2 KBps. Is that > with 16550's? I mentioned the Cyclades. It is an intelligent card which does not use multiple 16550s. It runs each port at up to 115200 and uses a single irq for all 8 (or 16 on a 16 port board). I've found that if the machine crashes, the 16550 AST clones I'm also using are not guaranteed to come up with a warm boot - need power cycle to flush buffers or something. With the cyclades I have no such trouble. Danny