🚀 go-pugleaf

In article <1992Aug11.143552.8163@msuinfo.cl.msu.edu> lees@cps.msu.edu (John Lees) writes:
>I have an Apple LaserWriter IIg attached both to a Sun 4/330 (SunOS 4.1.2)
>via a serial line and to a Macintosh IIfx (System 7) via Ethernet. I am
>running the serial line at 19200 baud, but would like to run it higher.
>We have a LaserWriter IInt running at 38400 baud, but the Macintosh
>LaserWriter utility for the IIg skips 38400 baud (goes from 19200 to
>57600). SunOS 4.1.2 does not support 57600 baud as a valid speed for a
>serial line. Arghh.
>
>Does anyone know if (1) there is some way to set the IIg to 38400
>baud (I am not a MacHacker) or (2) is there a hack to get the Sun to
>use 57600 baud (if hardware is a problem, I can hang the printer on a
>SPARCstation 2, or next month on a SPARCstation 10).

It is one of the most bizarre things about the IIg, but it really does not
seem to support 38400 baud.  Why Apple elected to drop support for this most
basic of speeds while being sure to include the ever so useful 3600 and
7200 is beyond me.  It is one of the more baffling and frustrating things
about this printer.  The only thing more frustrating is that the serial
port performance is aobut HALF that of the II NTX at the same baud rate.
Now how Apple could manage to screw up the implementation of something as
simple as a serial port is beyond me.  I guess they figured that only type
of computers out there are Macs that use LocalTalk.  Oh yea, and they
quietly removed Zaph-Digbats from the set of ROM fonts.

As for the SPARCstation 2, I don't believe that you can get it to go faster
than 38400 without hacking on the kernel/device driver.  I haven't seen
a SS10 yet, so I don't know whether Sun has added intrisic support for
higher baud rates.  I kind of doubt it, but what with the ISDN stuff, I
guess there is always a chance.

--Marc Ullman
  Stanford University