--------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: EBF00000Date: 07/09/97 From: RICK COLLINS Time: 09:47pm \/To: WILLIAM BOWEN (Read 5 times) Subj: Re: You are Confused! On Jul 02 18:25, 1997, William Bowen of 1:353/385 wrote: RC>> Yes, indeed. I did think otherwise. :-) I saw your post as looking RC>> for a way to improve upon the 31,200 connect - and nothing in the RC>> init will do that. Your best bet is to use a terminal program RC>> (Hyperterm is fine) and issue the atin series of commands, starting RC>> with ati1. One of them may mention a manufacturer, or at least a RC>> chipset. WB> Great...you appear to know more than I on this topic! Thanks for the info, WB> and yes, I tried all the ati_ commands...it has a texas instruments chip- WB> set. But that's all it gives me. Any other ideas? Nope. If the information isn't displayed, and not printed anywhere on the board, the only real chance you have is to look for an FCC ID on the board. Then, you can contact the FCC website (I don't have the address) and, with the ID, identify the manufacturer. Once you've done that the information may not be of much use to you, but there you have it. Rick --- MsgedSQ 3.30 * Origin: The Warlock's Cave (1:163/215.39) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: EBF00001Date: 07/10/97 From: JOHN ALDRICH Time: 08:30am \/To: RICK COLLINS (Read 5 times) Subj: Modem Selection? Answers? Hello Rick! Tuesday July 08 1997 21:13, Rick Collins wrote to Edward Rutledge: RC> Absolutely _wrong_. A 286 can handle data much much faster than a 33.6 RC> modem can hope to provide it. Even a 4 Mhz 8086 has no problem with the RC> data rate from a 33.6. Problems with those speeds on older hardware is RC> usually correctable by replacing the non-buffered UART (either an 8250 r RC> 16450) with a buffered UART like the 16550. That's interesting, because my roomie, who's a TECH for a local computer store, told me that our old Commodore Colt (an old 8086 CPU machine) would not be capable of handling anything more than a 14.4 modem....even with a 16550 UARTed serial port. Please forgive this question, but what are your qualifications to discuss whether or not a certain CPU can handle a 14.4? I mean no disrespect, simply I don't know you, and I came in late on this discussion. :) John ... "He's DEAD, Jim. Get his ears." - Spock --- GoldED/386 2.50+ 91LM1 * Origin: The Dungeon BBS 33.6/V.34 24-hours 423/875-4137 (1:362/669) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: EBF00002Date: 07/10/97 From: NAVEEN TALWAR Time: 01:37pm \/To: PRATAP DERRICK (Read 5 times) Subj: Re: Cardinal -=>QuotingPratap DerricktoNaveen Talwar<=- -=>QuotingDave RaymondtoAll<=- NT> Whats this X2 technology USR r widely publishing ?? PD> ( Lucent has actaully sent at 40K and recieved PD> at something less than 56K, using the Kflex PD> system) But is it successful in bad long distance lines ? Any way thanx for information ! Bye ! <> Naveen Talwar email : Naveen_Talwar@dolbbs.com <> ... We now return to our regularly scheduled flame-throwing. ___ Blue Wave/QWK v2.20 --- Maximus 3.01 * Origin: Delhi Online [5578536] -=[New Delhi/India]=- (6:606/26) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: EBF00003Date: 07/09/97 From: HENK JASPERS Time: 06:06am \/To: EDWARD RUTLEDGE (Read 5 times) Subj: Modem Selection? On (26 Jun 97) Edward Rutledge wrote to Robert Osborne... Hi Edward, ER> No you will not be able to use the high speed (14,400 bps or ER> faster modem) with a 286. You may be able to send at that speed, ER> but you won't be able to receive. Maybe I am one of the exceptions to the rule but I have used an external 14K4 modem with a 16MHz 286 pc and a 16450 UART for years without any problems. I even know of people that have used a 28K8 modem with an XT and a 16550 UART quite succesfully both sending and receiving... Regards, Henk. henkjasp@telebyte.nl --- PPoint 2.02 * Origin: Point off HDJ-BBS(Deest,The Netherlands) (2:2802/126.3) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: EBG00000Date: 07/11/97 From: PRATAP DERRICK Time: 12:39am \/To: NAVEEN TALWAR (Read 5 times) Subj: Cardinal Naveen Talwar wrote in a message to Pratap Derrick: NT> Whats this X2 technology USR r widely publishing ?? PD> ( Lucent has actaully sent at 40K and recieved PD> at something less than 56K, using the Kflex PD> system) NT> But is it successful in bad long distance lines ? I have used the lines around Hardware and I dont know how the digital level system would work.. Not too good would be my Guess. I tried to call your BBS and find out but I kept getting Busy's NT> Any way thanx for information ! You are Very Welcome.. Seeya pratap@juno.com THE SPIRIT BBS (408)336-5532 *The Spirit Is Allways Free* Bay-Area Newsgroups-Jobs-Weather-Politics --- timEd 1.01 * Origin: That's The Spirit BBS (1:216/511) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: EBG00001Date: 07/11/97 From: JAY FULLER Time: 04:12pm \/To: RICK COLLINS (Read 5 times) Subj: NO SOUND!!AAAAAAAHHH! RC>You shouldn't be seeing that XOff at all. Use the string I've RC>mentioned above and ensure the comm program is configured for RC>RTS/CTS flow control and all should work well. I've done it to all the affected modems, and sure enough, the problem was corrected. Much thanks! Later, Jay Fuller ------------------------------------------------------------------------ Internet: jfuller@airnet.net Fidonet Netmail: 1:3607/22 -->> Internet HOMEPAGE: http://www.airnet.net/jfuller <<-- "Replace your sex drive with a disk drive, and you become a SysOp!" ------------Jay Fuller, 1633 Daisey Drive, Cullman AL 35055------------- REMEMBER: If two people truely love each other, they can be miles apart, but they can still sleep together on the head of a pen --- GEcho 1.00 * Origin: Deep Space Nine BBS - [205] 734-0818 - Cullman Alabama (1:3607/22) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: EBH00000Date: 07/11/97 From: RICK COLLINS Time: 08:40pm \/To: JOHN ALDRICH (Read 5 times) Subj: Modem Selection? Answers? On Jul 10 08:30, 1997, John Aldrich of 1:362/669 wrote: RC>> Absolutely _wrong_. A 286 can handle data much much faster than a 33.6 RC>> modem can hope to provide it. Even a 4 Mhz 8086 has no problem with the RC>> data rate from a 33.6. Problems with those speeds on older hardware is RC>> usually correctable by replacing the non-buffered UART (either an 8250 r RC>> 16450) with a buffered UART like the 16550. JA> That's interesting, because my roomie, who's a TECH for a local computer JA> store, told me that our old Commodore Colt (an old 8086 CPU machine) would JA> not be capable of handling anything more than a 14.4 modem....even with a JA> 16550 UARTed serial port. That's quite possible - it depends on the architecture of the machine and how well (or how poorly) it supports interrupts. JA> Please forgive this question, but what are your qualifications to discuss JA> whether or not a certain CPU can handle a 14.4? I mean no disrespect, JA> simply I don't know you, and I came in late on this discussion. :) The simplest answer is to tell you that I have done it, and know others who have as well. In fact, I know one guy who has operated at 14,400 with no problems with an old XT - and _with_ an 8250 UART. The question really comes down to whether or not the computer can service the interrupt quickly enough, and that is determined not by the processor speed (all are far faster than the data rate from the modem) but by the other hardware in the system. A particular problem is disk drives: When you access a drive to write, parts of that operation cannot be safely interrupted, therefore interrupts have to be disabled. Hopefully, they get enabled again before two bytes arrive at the comm port, in which case, nothing bad happens. However, if the interrupt is disabled too long, then the second byte (without a buffered UART) overwrites the first and you get a CRC error. How long the interrupts are disabled depends more on the disk subsystem than on the CPU speed. A "slow" disk will cause problems, no matter how fast the CPU. That's why people with CRC problems are often told to disable SMARTDRV write caches - use of the cache results in fewer disk access, but each access when it is made is longer, and therefore the risk of a delayed interrupt rises. Does that help? Rick --- MsgedSQ 3.30 * Origin: The Warlock's Cave (1:163/215.39) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: EBH00001Date: 07/11/97 From: BRUCE CLARK Time: 09:48pm \/To: EDWARD RUTLEDGE (Read 5 times) Subj: Modem Selection? -=> Quoting Henk Jaspers to Edward Rutledge <=- ER> No you will not be able to use the high speed (14,400 bps or ER> faster modem) with a 286. You may be able to send at that speed, ER> but you won't be able to receive. Don't know what you're talking about. I was using a 14.4k external modem with a 286 12MHz and the nonbuffered serial port for over a year. I always used a 57.6k computer to modem speed and never had any problems. HJ> Maybe I am one of the exceptions to the rule but I have used an HJ> external 14K4 HJ> modem with a 16MHz 286 pc and a 16450 UART for years without any HJ> problems. I even know of people that have used a 28K8 modem with an XT HJ> and a 16550 UART HJ> quite succesfully both sending and receiving... ___ Blue Wave/386 v2.30 --- WILDMAIL!/WC v4.12 * Origin: COM-DAT BBS (1:105/314.0) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: EBH00002Date: 07/11/97 From: DENNIS HADDOX Time: 10:53pm \/To: WILLIAM BOWEN (Read 5 times) Subj: Re: I am Confused! WB-> DH> That is a MaxTech 33.6 Fax modem. -> DH> The drivers can be obtained at the Maxtech home page on the web. WB-> Excellent! May I ask how on earth you determined that? I will go and -> see if I can find the driver now. Because I have one of them :) It is a very nice modem once the init string is right, very good connects at all times. It is a USR clone. * OLX 1.53 * Nothing is so smiple that it can't be screwed up --- TriToss (tm) Professional 1.0 - #108 * Origin: The Hall of Fame * Canton, OH * (330) 456-8856 * (1:2216/1.0)