wengland@stephsf.stephsf.com (Bill England) (07/01/90)
This is not a uucp problem but a modem problem. I'd taken for granted my reliable connections with a Hayes modem. This new Telebit finally will connect at both 1200-2400 and 19200 with the addition of two device names in the devices file. BUT, I can't get it to allow 1200 baud modems to dial in. It's FRUSTRATING. I don't know mabey it's broken or something. It always throws PEP signals, first thing, at calling modems, if S90=0 or S90=1. S90=2 will give a tone on answer, and then it will throw a PEP screwing everything up. I just want the PEP signals at the end of the answer sequence. Thats all. Not a major request really. :-) ????? H e l p +-------- | Bill England | Stephen Software Systems, Inc., Tacoma Wa. | wengland@stephsf.com +1 206 564 2122 | * * H -> He +24Mev * * * ... Oooo, we're having so much fun making itty bitty suns * * *
ralphs@halcyon.wa.com (Ralph Sims) (07/01/90)
wengland@stephsf.stephsf.com (Bill England) writes: > I don't know mabey it's broken or something. It always throws PEP > signals, first thing, at calling modems, if S90=0 or S90=1. S90=2 > will give a tone on answer, and then it will throw a PEP screwing > everything up. Do you mean the S92 register? I known if you set S92=1, you will force PEP tones at the _end_ of the answer sequence. The S90 register seems to be used to enable v.22 (set S90-0). > I just want the PEP signals at the end of the answer sequence. > Thats all. Not a major request really. :-) Makes sense, especially since quite a number of 2400 baud modems and a greater number of 1200 baud modems barf when encountering PEP (or v.32 or MNP) tones in the handshake sequence. This shortcoming can often be overcome by setting the S9 and S10 register to 20 or greater, forcing the slower modem to ignore breaks in the data stream. This information is provided from my experience with an early Telebit Trailblazer and now with a TB+. I would think this would hold true for a T2500, also. -- "These are the days of lasers in the jungle..." Paul Simon, "The Boy In The Bubble" on the _Graceland_ album
jeh@dcs.simpact.com (07/02/90)
In article <HZ6LL2w162w@halcyon.wa.com>, ralphs@halcyon.wa.com (Ralph Sims) writes: > wengland@stephsf.stephsf.com (Bill England) writes: >> I just want the PEP signals at the end of the answer sequence. >> Thats all. Not a major request really. :-) > > Do you mean the S92 register? I known if you set S92=1, you will force > PEP tones at the _end_ of the answer sequence. The S90 register seems > to be used to enable v.22 (set S90-0). > This information is provided from my experience with an early Telebit > Trailblazer and now with a TB+. I would think this would hold true > for a T2500, also. It works here with a T2500. Just one thing: If you set S92=1, sites that call you and expect to connect in PEP mode will have to set their S50=255 (to force a PEP connection) before doing the dial. Normally S50=0 (auto-speed determination). If the calling TB modem is set S50=0, and the answering TB modem is set S92=1, they happily sync up at whatever speed the answerer sends tones for first -- typically 2400, the way mine are set up. Having the caller do S50=255 solves this; the calling modem patiently waits until the PEP tones show up (assuming you both set S7 large enough; I set mine to 90 seconds). --- Jamie Hanrahan, Simpact Associates, San Diego CA Chair, VMSnet [DECUS uucp] and Internals Working Groups, DECUS VAX Systems SIG Internet: jeh@dcs.simpact.com, or if that fails, jeh@crash.cts.com Uucp: ...{crash,scubed,decwrl}!simpact!jeh
wengland@stephsf.stephsf.com (Bill England) (07/03/90)
In article <1422.268e1a89@dcs.simpact.com> jeh@dcs.simpact.com writes: >In article <HZ6LL2w162w@halcyon.wa.com>, ralphs@halcyon.wa.com (Ralph Sims) > writes: >> wengland@stephsf.stephsf.com (Bill England) writes: >>> I just want the PEP signals at the end of the answer sequence. >>> Thats all. Not a major request really. :-) >> Thanks for your responses. I could not understand why the modem would not configure properly. Sometimes it would work and then it would not. Also after a failed uucp call out the DTR light would not come back on, sometimes. It appears that the com ports are dropping out some chars when uucp tries to configure the modem during call out. I'm going to try to get FAS running. I just recieved a copy of the source this morning. ( If I disappear, I've self destructed. ) +-------- | Bill England | Stephen Software Systems, Inc., Tacoma Wa. | wengland@stephsf.com +1 206 564 2122 | * * H -> He +24Mev * * * ... Oooo, we're having so much fun making itty bitty suns * * *
chad@anasaz.UUCP (Chad R. Larson) (07/06/90)
In article <173@stephsf.stephsf.com> wengland@stephsf.stephsf.com (Bill England) writes: +--------------- | I just want the PEP signals at the end of the answer sequence. | Thats all. Not a major request really. :-) +--------------- Quoting from TFM: S92 Answering Sequence Selection Range: 0-2 Default: 0 The S92 register is used to change the sequence of answering tones issued by the moden when answering a call in automatic speed determination mode (S50=0). This is required to accomodate slower modems which are adversley affected by PEP answer tones. The following possible contents of the S92 register are only valid when the modem is answering a call in automatic speed determination mode: 0 Use the normal search sequence specified in the S50 register description. 1 Issue the PEP answer tones at the end of the search sequence rather than at the beginning to accomodate connecting with slower speed (non-PEP) modems. 2 Use the normal search sequence specified in the S50 register description but preceeded by a three second V.25 answer tone. -- Chad R. Larson ...{mcdphx,asuvax}!anasaz!chad or chad@anasaz.UUCP Anasazi, Inc. - 7500 North Dreamy Draw Drive, Suite 120, Phoenix, Az 85020 (602) 870-3330 "I read the news today, oh boy!" -- John Lennon