ghost@bucsf.bu.edu (Jay Adelson) (01/30/91)
Now that (from what I read) v32bis standard has been finalized, then will the Telebit T2500 support it? The reason that I ask is because as of right now, in comparison, the USR Dual Standard does: v32,v32bis,v42,v42bis, and HST speed (I've heard of incredible x-fer rates) Where the telebit t2500 does: v32,v42,v42bis, and PEP speed (I've heard of not-so-incredible x-fer rates) Well folks, the Dual Standard is winning my shopping battle right now because even though I'm calling a uucp connect from a remote, the modems are v.32 anyway, and the system I'm calling only x-fers to terminals at 9600, so PEP mode is useless. (I think?) The Dual Standard will get me max speed with my uucp connect (Boston University) as well as max speed outside with BBS's. Please, argue this! -Jay -- """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" [ Jay Adelson | BIX: j.adelson ] [ T.G.C. ] [ ghost@bucsf.bu.edu | Channel One: ] [ 1039 Commonwealth Ave. #18 ] [ GEnie: J.ADELSON1 | Jay Adelson ] [ Boston, MA. 02215-1008 ]
bill@bilver.uucp (Bill Vermillion) (01/31/91)
In article <GHOST.91Jan29163845@bucsf.bu.edu> ghost@bucsf.bu.edu (Jay Adelson) writes: >Well folks, the Dual Standard is winning my shopping battle right now >because even though I'm calling a uucp connect from a remote, >the modems are v.32 anyway, and the system I'm calling only x-fers to >terminals at 9600, so PEP mode is useless. (I think?) >The Dual Standard will get me max speed with my uucp connect (Boston >University) as well as max speed outside with BBS's. I'll argue one point (only!). One thing the PEP in a TBit modems does is connect where others wont, or when they do connect won't stay connected. I have a site that was using V.32 (not HSTs) on a leased line that would typically drop 4 to 6 times per day. Nothing the two phone companies involved could do would improve it for more than a few days at a time. We went to T2500's on dial-up lines. Last week I was at that site again and he thinks they have only disconnected about 6 to 10 times total. And that's for FIVE MONTHS. Don't just think speed with a TB, think connectivity and reliability. -- Bill Vermillion - UUCP: uunet!tarpit!bilver!bill : bill@bilver.UUCP
casey@gauss.llnl.gov (Casey Leedom) (02/01/91)
| From: bill@bilver.uucp (Bill Vermillion) | | One thing the PEP in a TBit modems does is connect where others | wont, or when they do connect won't stay connected. | | I have a site that was using V.32 (not HSTs) on a leased line that | would typically drop 4 to 6 times per day. Nothing the two phone | companies involved could do would improve it for more than a few | days at a time. That's true and I had the same problem with V.32 connections with my T2500. But, I think that this may be a function of the buggy Rockwell chip set. The T1600 I'm evaluating has yet to drop a connection. I've had it up for five days at a time without any connection losses *or* performance degradation that I could see, while the best my T2500 was ever able to do was hold a connection for five hours. I've tested the T1600 connecting to both T2500s and another T1600 (though the longest I tested the T1600 to T2500 connection was 24 hours.) It works great. I think a lot of the V.32 connection horror stories we have all heard and possibly dealt with ourselves are a function of the single common denominator in most V.32 modems: the Rockwell chip set. Casey
lstowell@pyrnova.pyramid.com (Lon Stowell) (02/01/91)
In article <90562@lll-winken.LLNL.GOV> casey@gauss.llnl.gov (Casey Leedom) writes: >| From: bill@bilver.uucp (Bill Vermillion) >| >| One thing the PEP in a TBit modems does is connect where others >| wont, or when they do connect won't stay connected. >(though the longest I tested the T1600 to T2500 connection was 24 >hours.) It works great. I think a lot of the V.32 connection horror >stories we have all heard and possibly dealt with ourselves are a >function of the single common denominator in most V.32 modems: the >Rockwell chip set. > Must beg to differ with both of you. Some of the better V.32 modems will hold a connection where the Trailblazer just goes !click. The real world-class V.32's (Phillips, Codex 2264/6,) don't use the Rockwell chips. Their companies are also characterized by sound engineering knowledge of the telco facilities...other than out of a book. SOME V.32's using the Rockwell work o.k, a lot depends on the analog interface, which separates the men from the boys.