Date: Sun, 10 Aug 1997 14:31:50 -0400 From: "Brian J. McGovern" <mcgovern@spoon.beta.com> To: tom@sdf.com Cc: hackers@freebsd.org Subject: 230+K (was RE: ISDN driver/cards) Message-ID: <199708101831.OAA00540@spoon.beta.com>
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Just as an FYI, there is a new Cyclades driver (beta quality) that drives their Cyclom-Zs (latest currently supports all the Zo family, as well as the Zes - up to 64 ports). The cards are capable of 920K/s (stepping down to 460, 230, etc). The way I kludged in support for these faster speed cards were to use the low-end, mostly unused baud rates, so that 50bps was 230K, 75 was 460K, and now I'll be using 150 baud for 920K. Since there are very few devices that use such low baud rates at this point, I figured it was reasonable, and it'd give the OS and application developers a chance to support the higher rates. Things like kermit, for example, only go to 115200. I've seen earlier versions still floating around that didn't do beyond 38400. Cost on a Cyclades 8Zo, BTW, was around $500-700 the last time I checked. I admit, its expensive ($60-70 per port)... But, like i said, it does 920K, and I'm sure as the rest of the hardware world catches up, the cost will come down. Anyhow, just thought you'd like to know there are some UART (or "serial port") based solultions out there. -Brian
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