--------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: F3R00002Date: 03/21/98 From: RYAN BALL Time: 11:30pm \/To: LARRY ROBERTS (Read 4 times) Subj: Re: V90 question LR> Right now I have my eye set on a 56K Flex SVD modem that meets all LR> myrequirements that is being sold for $65 brand new. Unless these LR> brand namemodems can function without aid from Windows, PnP, and a LR> Pentium CPU, I'm gona LR> go with this modem. Well, it is jumperless but comes with software for DOS systems to run without Win95. It works on any CPU and it is kind of annoying to have to use the included Intel PNP software but it works and works great!! Ryan * SPITFIRE v3.5 --- Alexi/Mail 2.02b (#128) * Origin: The QuarterFlash BBS, Portland, OR (503-245-2135) (1:105/49) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: F3R00003Date: 03/22/98 From: RJ PAULOSKI Time: 03:41am \/To: ALL (Read 4 times) Subj: USR Courier Question I have a USR Courier 33600 External (V34+). I was wondering if it is possible to have different connect speeds at each nd of the connection. Eg. My end -> 28800 Other End -> 31200 It doesn't seem to make sense to me, however it may be possible. I am using BNU as my fossil driver. Thanks in advance, RJ Pauloski III --- The Marketplace BBS * Origin: The Marketplace BBS - Buy & Sell - 905.847.0159 (1:250/323) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: F3S00000Date: 03/21/98 From: DAVID BOWERMAN Time: 05:09pm \/To: JOHN ALDRICH (Read 4 times) Subj: V90 question John Aldrich wrote in a message to David Bowerman: DB> Nope. Rockwell chipset K56Flex modems did not have the flash ROM space DB> to contain both K56Flex and V.90. You'll have to choose which DB> one to use before calling. Hayes is supposedly going to have a DB> utility to allow reflashing their modems based on the system you DB> will be calling. The new V.90/K56Flex modems will be able to have DB> both protocols resident in their larger flash ROM space. JA> AGain, all I can do is go by what Diamond is saying... Seems rather at odds with what Rockwell is saying. Could be that Diamond implemented a larger flash ROM (2 megabit) in their modems than the normal 1 megabit unit. Or they are planning on a kludge such as Hayes was discussing. Regards, David --- timEd/2 1.10+ * Origin: Frog Hollow -- a scenic backroad off the Infobahn (1:153/290) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: F3S00001Date: 03/21/98 From: DAVID BOWERMAN Time: 05:11pm \/To: FRANK SEXTON (Read 4 times) Subj: V90 question Frank Sexton wrote in a message to Bob Juge: DH> Have a look at an interesting article on the x2 / DH> K56Flex / v.90 state of affairs at Boardwatch DH> magazine's Web page: DH> http://www.boardwatch.com/mag/98/mar/bwm24.html FS> I've seen it. It says that x2 is much better than FS> K56Flex. Doesn't mean much now that v.90 is here. BJ> Read it again. FS> What are you getting at? Perhaps that there are implementation details? Given the noted similarity between x2 and K56Flex, you would expect similar performance. Differences could easily be due to one manufacturer doing a better job of implementing their hardware and software. The ITU-T recommendation does not go into the details of hardware and software, it is more concerned with the desired end result. Much like the "black box" theory of software design where the internal details of a module are hidden with only the expected input and outputs being specified. In the case of V.90, the client modem is responsible for quite a few decisions about how the data will be sent, decisions that can have a rather large effect on the effective transmission speed. Heck, Rockwell never did get around to implementing 64S/4D trellis coding despite it's advantages. Given that USR/3Com seems to have done better at implementing x2 than Rockwell did in implementing K56Flex, it would appear somewhat logical to expect USR/3Com to have the edge when it comes to implementing V.90. A difference that is likely to disappear as Rockwell tunes their code -- a much easier task with flash ROM. You might remember (or want to forget) the early v.32bis Rockwell chipset modems? I still have my screwdriver collection -- Supra used to ship a combination Phillips/slot screwdriver with the ROMs. A simple phone call to obtain the code and a few minutes to re-flash the modem is a much more attractive option. Regards, David --- timEd/2 1.10+ * Origin: Frog Hollow -- a scenic backroad off the Infobahn (1:153/290) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: F3S00002Date: 03/22/98 From: JOHN ALDRICH Time: 08:28am \/To: WALTER CO (Read 4 times) Subj: V90 question Hello Walter! Saturday March 14 1998 03:43, Walter Co wrote to John Aldrich: WC> Whew..its a good thing that the ITU has finally set a standard. WC> But sad to say, here in Manila, the phonelines/equipments are WC> not as good as what you have in the u.s. so I'm afraid even if WC> our local isp's adopts the new technology, I doubt if anybody WC> would benefit from it :( You might have a good point. It's my understanding that you need good, clean phone lines to take advantage of any high-speed protocol, and that the higher the speed, the better the phone lines need to be... John ... Some smokers quit 'cause there's no air in the coffin. --- 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: F3S00003Date: 03/22/98 From: WES NEWELL Time: 08:14am \/To: RJ PAULOSKI (Read 4 times) Subj: USR Courier Question RP> I have a USR Courier 33600 External (V34+). RP> I was wondering if it is possible to have different RP> connect speeds at each end RP> of the connection. RP> Eg. RP> My end -> 28800 RP> Other End -> 31200 RP> It doesn't seem to make sense to me, however it may be possible. Not only possible, but hoghly likely. Most connections have different send/receive rates. Notice the speed on my last call. Data Compression V42BIS 2048/32 Equalization Long Fallback Enabled Protocol LAPM SREJ 244/15 Speed 31200/28800 Last Call 00:00:03 --- Maximus/2 3.01 * Origin: Wylie Connection 128K ISDN / V34+ 972-429-7005 (1:124/7028) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: F3S00004Date: 03/22/98 From: JOHN ALDRICH Time: 03:03pm \/To: RJ PAULOSKI (Read 4 times) Subj: USR Courier Question Hello Rj! Sunday March 22 1998 03:41, Rj Pauloski wrote to All: RP> I was wondering if it is possible to have different connect speeds at RP> each end of the connection. YES! RP> My end -> 28800 RP> Other End -> 31200 This is the upload/download speed. That's why when you're RECEIVING files, you may get a 115% throughput or some such. :) John ... Beverly can turn Data off but only Tasha can turn him on. --- 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: F3S00005Date: 03/22/98 From: BUD JAMISON Time: 12:43pm \/To: RJ PAULOSKI (Read 4 times) Subj: USR Courier Question -> I have a USR Courier 33600 External (V34+). -> I was wondering if it is possible to have different connect speeds -> at each end of the connection. Absolutely. In fact, it's common with v.34 and above. It would be slightly unusual to have a line with the same response both directions. --- Platinum Xpress/386/Wildcat! v1.3e * Origin: FidoNet International Coordinator Emeritus, for life (1:202/746) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: F3S00006Date: 03/22/98 From: BUD JAMISON Time: 12:45pm \/To: DAVID BOWERMAN (Read 4 times) Subj: V90 question -> Perhaps that there are implementation details? Given the noted -> similarity -> between x2 and K56Flex, you would expect similar performance. My ISP offers both K56Flex and X2 lines. I read LOTS of messages about both, especially in the local support newsgroup, before settling on a Flex modem, since the majority of users of that on my ISP had fewer problems, and generally better connections and transfer rates. That MAY not hold true other places. --- Platinum Xpress/386/Wildcat! v1.3e * Origin: FidoNet International Coordinator Emeritus, for life (1:202/746) --------------- FIDO MESSAGE AREA==> TOPIC: 105 HIGH SPEED MODEM Ref: F3S00007Date: 03/22/98 From: CRAIG FORD Time: 10:08pm \/To: BOB BREED (Read 4 times) Subj: V90 question Bob Breed wrote the following to Craig Ford, and I quote (in part): -=> Note: Copied from HS_MODEMS by WIMM/2 1.31 BB> I have a general area question about all this 56k stuff. I retired BB> from the telco in 1984, so know about T carrier systems etc. But BB> from what I read about these 56k modems, it sounds like they haul BB> the 4 wire end of a T channel out to the ISP? In the case of supporting 56K links, it is an absolute necessity (at the very leat, a trunk side ISDN BRI is required). It is _very_ rare for an ISP of any repute to rely on banks of discrete modems these days. The typical ISP setup now has one or more T carriers terminated in Ascend, Livingsston, 3COM Totoal Control boxes. BB> Splitting a T system was unheard of in my days. (I retired in BB> 1984.) I know we do it now, as many business buy enough channels BB> to warrant the cost of the T span. I further understand that these BB> systems use other terminal devices than those made by WECO. Western Electric has long since been supplanted as the primary vendor of of CO line cards. BB> I see no way of preventing the A/D conversion on the ISP/User BB> direction if they don't have access to the 4w side of the channel? They do. Regards.... Craig aka: cford@ix.netcom.com : craig.ford@2001.conchbbs.com --- timEd/2 1.10+ * Origin: Dayze of Futures Past * V.Everything * 281-458-0237 * (1:106/2001)