Date: Sun, 15 Mar 1998 16:00:48 -0800 (PST) From: Simon Shapiro <shimon@simon-shapiro.org> To: Adrian Filipi-Martin <adrian@virginia.edu> Cc: FreeBSD Questions List <freebsd-questions@FreeBSD.ORG> Subject: Re: Best IDSN? Message-ID: <XFMail.980315160048.shimon@simon-shapiro.org> In-Reply-To: <Pine.SOL.3.96.980315182605.28676B-100000@mamba.cs.Virginia.EDU>
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On 15-Mar-98 Adrian T. Filipi-Martin wrote: > On Sun, 15 Mar 1998, Simon Shapiro wrote: > >> >> On 15-Mar-98 Adrian T. Filipi-Martin wrote: >> > On Sat, 14 Mar 1998, Virgil Champlin wrote: >> > >> >> >> Can anyone suggest a good ISDN TA? I am leaning towards an >> >> >> internal Courier I or a Sporster ISDN? Should I be looking at >> >> >> anything else? >> >> >> >> I've had very good luck with the Motorola Bitsurfr Pro. Both with >> >> Win95 >> >> clients dialing in and FreeBSD boxes peering. -virgil >> > >> > Are you using an internal model? Is there an advantage to the >> > Bitsurfer Pro? I could find few references to models in use when >> > searching the mailing list archives. The Sportster seemed to be one >> > of >> > the fist mentioned. >> >> I belive there is an internal version, althogh I do not know what the >> advantage of tat will be. As long as it appears to the system as an sio >> class device. >> >> I am using an external one with 230,400 baud rate rather well for >> several >> years. Never had one fail, or mulfunction in any way. > > What kind of UART's does your serial hardware use? My boca 6 port > uses 16550A's, which I believe are only good upto 115Kbaud. I want to > avoid getting an aditional serial board with 16650's. The same junk. Only with a jumper to double the clock rate. Unix still thinks this is 115,200, but in reality it is exactly double. There was a long discussion on this part several times. Lst time I triggered it under the heading of silo overflow, or some such. My undestanding at the end was that the FreeBSD way of handling this device (or the device ``genetics'') are such that at high baud rates, there will be an occsional character drop. If you locate an ISDN TA that does NOT use a serial UART, but it's own interface, and for the US market, please let me know. In the meantime I am looking at SDLC/HDLC and frame relays. ---------- Sincerely Yours, Simon Shapiro Shimon@Simon-Shapiro.ORG Voice: 503.799.2313 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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