Mailinglist Archive: packet-writing (124 mails)

[Morten Bo Johansen <mojo@xxxxxxxx>]

Jens Axboe <axboe@xxxxxxx> wrote:


> No, it looks like you have anything setup alright. I'd suspect the cable
> if I were you, are you sure it's a null modem cable?


That's what I bought it to be originally - but I never got to
use it before now so I am not altogether sure that it is wired
correctly. Even if it is maybe going a little to far persevering
with this subject here I am laying out the wiring below in case
you or anyone else might tell me if it is okay or not:

Two 25 pin female connectors (C1 & C2)


Pin #  	      color/wire

          C1:           C2:

1   	  brown	    	brown
2	  red     	orange
3	  orange	red
4	  yellow	green
5	  green		yellow
6	  -		-
7	  blue		blue
8	  lilac		black
9	  -		-
10	  -		-
11	  -		-
12	  -		-
13	  -		-
14	  grey 		-
15------  		----- 
       |  wire thickish	    |    
16     |  + red		    |
       |    		    |
17------  white		----- grey
18	  -		-
19	  -		-
20	  black		lilac
21	  -		-
22	  -		-
23	  -		-
24	  -		white
25	  -



With regards to pin 15+17 it means that C1 & C2  are jumpered 
with a thickish red wire and that pin 17 has an additional white
respectively grey wire going to it.

This layout is somehwat different from the diagram over a null
modem cable found at http://sunsite.dk/hwb/ - but pins 2-5 are
indeed crossed over and isn't that what's essential here?




Regards,

Morten

-- 
"Education is a method whereby one acquires a higher grade of prejudices." 
                                                      (Laurence J. Peter)