Major problems with UP2000 - need help in Firmware

William H. Magill magill at mcgillsociety.org
Sat Jan 1 02:11:45 UTC 2005


On 31 Dec, 2004, at 16:33, A. Devine wrote:
>>> Definitely. If you are connecting two PC-style COMM ports together 
>>> you'll
>>> need a null modem cable.
>>
>> Also make certain that it is 9600 baud 8n.
>>
>
> OK thanks, thought as much. Hopefully the last question on this... 
> what type of Null Modem cable is needed:
>
> http://www.lammertbies.nl/comm/info/RS-232_null_modem.html
>
> Since Im gonna have to make this myself (any serial cables are hard to 
> find these days), hopefully the most basic type will suffice "Null 
> modem without handshaking".

Classic DEC 3 wire ... R/T/G   2 - 3
                                3 - 2
                                7 - 7

BTW: If I remember correctly, com1 is the only port which has full 
"handshaking" capability.


T.T.F.N.
William H. Magill
# Beige G3 [Rev A motherboard - 300 MHz 768 Meg] OS X 10.2.8
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magill at mcgillsociety.org
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