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- Path: dartvax.dartmouth.edu!usenet
- From: Steven.D.Ligett@dartmouth.edu (Steven D. Ligett)
- Newsgroups: comp.dcom.modems
- Subject: Re: Multitech and disconnects
- Date: 13 Mar 1996 20:10:26 GMT
- Organization: Dartmouth College, Hanover, NH
- Message-ID: <4i7a3i$fl3@dartvax.dartmouth.edu>
- References: <4h3kji$qhn@news.netam.net> <313B6960.2AB8@compassnet.com>
- NNTP-Posting-Host: atgw2-ksp-1-180.dartmouth.edu
- X-Posted-From: InterNews 1.0.6@dartmouth.edu
-
- I don't have answer for all your disconnect problems. Just another data point.
- We use Multitech modems (feeding Xylogic Annexes). Mostly the mt2834br (about
- 80 of them). I'm putting the 2.13 upgrade (33600, etc.) in them as time
- permits. I hope it also improves compatibility with other modems. The
- compatibility problems I see vary with the location that places the call (i.e.
- the problems are apparently related to types of line impairments). I have seen
- problems with the USR Sporster, the Global Village Platinum, and the SupraFAX
- 288. The most recent Supra firmware upgrade fixes the problems I saw with that
- modem, and I hope the recent GV upgrade fixes similar problems with the
- platinum (I'll try it later this week). The Sportster I've used (with lots of
- problems) has the 33.6kbps rom, so I'll have to try another unit - that is, I
- don't see any newer roms coming out soon for the Sportster, so I hope the
- disconnects and non-connects I've seen are due to failure on the Sportster end
- - or are fixed by the new firmware.
-
- I have not had time to test ANY of these troublesome modems with the newest
- Multitech firmware. Maybe all the problems have gone away. (yeah, right!)
-
- Some love to know about config strings - here's what I'm using now:
-
- AT Q2 $SB57600 &C4 &D3 %E0 S9=4 S10=15 S13=0
-
- Q2 - dumb answer
- $sb57600 - we'll go to 115200 after we fix some ARA problems
- &c4 - reset modem on loss of carrier
- &d3 - reset modem on loss of DTR
- %e0 - no escape to command mode
- s9=4 - recognize carrier quickly
- s10=15 - but not loss of carrier
- s13=0 - disable remote configuration
-
- I haven't had the 2.13 upgrade in enough modems for long enough to tell if they
- behave better. I believe that the 2.13 upgrade is now available at the
- Multitech web site - I think I got it some three weeks ago from the BBS. I
- think that the most useful things I've put in the init string are the resets on
- loss of carrier or DTR.
-