[rescue] SGI Crimson serial port help needed

Francois Dion fdion at atriumwindows.com
Tue Jun 1 09:13:25 CDT 2004

Ethan O'Toole wrote:

>>Can anybody confirm that is the case also for the Crimson? Maybe
>>somebody has a Challenge or Onyx and a crimson that are known working
>>and can verify this... I'm not getting anything on the serial on my
>>Crimson, and I suspect a problem with the IP17 or IO3B board... (no
>>spare on that IO3B so I cant verify)
>I'm pretty sure I just used a straight thru M-M or M-F DB9 cable to
>connect my Crimson and 4d/480VGX's to a PC running Qmodem for console. The
>pinout just happens to work as a null cable!!
>Qmodem > Telix.
I'll have to try that. Was that a 9 wire cable or your more typical 3 
wire type? Kind of odd it worked if the ground is not on the same pin, 
unless the shield is also connected to the ground on each side.


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