Path: utzoo!utgpu!cunews!bnrgate!brtph3!brchh104!brchs1!bnr.ca!rice.edu!sun-spots-request From: bob@morningstar.com (Bob Sutterfield) Newsgroups: comp.sys.sun Subject: Re: Serial port speeds Keywords: Hardware Message-ID: <1367@brchh104.bnr.ca> Date: 20 Jan 91 01:15:01 GMT Sender: news@brchh104.bnr.ca Organization: Sun-Spots Lines: 34 Approved: Sun-Spots@rice.edu X-Refs: Original: v10n20 X-Sun-Spots-Digest: Volume 10, Issue 25, message 7 X-Note: Submissions: sun-spots@rice.edu, Admin: sun-spots-request@rice.edu Does anyone know what the maximum speed is for sending and receiving on Sparc-Station 1+ or SLC? Look in , which shows B38400 as the maximum, at least under 4.0.3c and 4.1.1. We run PPP at that speed with fine results. On a Sun-4/60 (SPARCStation-1) running 4.0.3c and with two T1600s attached, things look like 8:59am> eeprom | egrep ttya ttya-mode=38400,8,1,n,h ttya-rts-dtr-off=false ttya-ignore-cd=false 8:59am> My /etc/ttytab entries are simply ttya "/usr/etc/getty std.38400" unknown on # in/outbound PPP where that gettytab entry looks like h|std.38400|38400-baud:\ :sp#38400:nx=std.19200 My devices look like 9:01am> ls -Failg /dev/{cu,tty}[ab] 493 crw-rw-rw- 1 root staff 12, 128 Jan 17 17:52 /dev/cua 507 crw-rw-rw- 1 root staff 12, 129 Jan 17 17:56 /dev/cub 93 crw--w--w- 1 root wheel 12, 0 Jan 18 00:43 /dev/ttya 94 crw--w--w- 1 root wheel 12, 1 Jan 17 17:52 /dev/ttyb 9:01am> This may be more detail than you asked for, but I hope it's useful.