Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!lll-winken!gauss.llnl.gov!casey From: casey@gauss.llnl.gov (Casey Leedom) Newsgroups: comp.windows.x Subject: Re: Review of the Graphon Optimax 200 X terminal Message-ID: <28320@lll-winken.LLNL.GOV> Date: 9 Jul 89 22:14:41 GMT References: <28319@lll-winken.LLNL.GOV> Sender: usenet@lll-winken.LLNL.GOV Reply-To: casey@lll-crg.llnl.gov (Casey Leedom) Organization: Lawrence Livermore National Laboratory Lines: 32 | From: anthony zador | | How fast is the modem you're using? I have a telebit 1000, which is 9600 | baud. Might this give reasonable performance? I'm using a Telebit T2500 in V.32 mode which gives full duplex 9600 BPS performance. When Telebit implement the MNP compression, I should see even better. The problem with the Telebit T1000 is that it does 9600 BPS via Telebit's PEP protocol which is [essentially] half duplex. The echo delays are pretty annoying with PEP, but I have used it successfully. You'll just have to get used to extremely jerky window and echo response. If the Graphon becomes popular enough, who knows, maybe Telebit might be inclined to offer yet another spoofing mode ... | Also, I would like to call through a bank of modems connected to my | computer via ethernet. Does the *first* machine the Optimax talks to have | to know about its communications protocols? I have no control over the | bank of modems. No problem as long as you can configure the modem pool terminal server to offer a completely transparent 8-bit communications. If you can only get a 7-bit channel, then you'll have to run the Graphon server in 7-bit mode which is a pretty significant performance hit. If you can't get a completely transparent channel (i.e. the terminal server uses escape characters to get you into its command mode, etc.), you're going to have problems from time to time ... Note that this isn't Graphon's problem. It's the fault of inflexible terminal servers. The correct fix is to fix the terminal server. Casey