[SunRescue] Egads! Serial battles...

[jeff borisch]

on 4/19/2000 1:38 PM, Gregory Leblanc at GLeblanc at cu-portland.edu wrote:

> From reading the SHR, a lot of the serial ports on SPARCs support both
> RS-232 and RS-423.  http://sun-ref.sunhelp.org/
> Greg


here is a relevant note from http://www.sunhelp.org/faq/sunref3.html :

501-1780        4/50 (SPARCstation IPX) motherboard 16M
        40MHz Fujitsu MB86903 or Weitek W8701, Sun-4c MMU with 8
        hardware contexts. 20MHz SBus.



<snip>



        There are a variety of jumpers. All locations are given with
        component side up and connector side toward you.

        J0502 (3-pin jumper in near left, pin 1 farthest)
         1-2    Jump for RS423 serial ports
         2-3    Jump for RS232 serial ports

        J0503 (3-pin jumper in near left, pin 1 farthest)
         1-2    Jump for RS423 serial ports
         2-3    Jump for RS232 serial ports



Cool! I can mac compatible my serial ports. I'm diving back in to see if
this works. there is a similar setup for ss2.

--jeffrey



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