[c-nsp] CAB-HD8-ASYNC extension cables?

[Lamar Owen]

On Monday 18 August 2008 21:40:35 Andrew Girling wrote:
> The connector on the cards are (Micro)D68F (also used by SCSI-3
> devices).  

A SCSI LVD/SE 68 pin extension might work; I'd just wonder about the pairing 
(SCSI cables have strict pairing guidelines; certain signals have to traverse 
certain pairs in the cable; the highest speed and most critical signals are 
carried in the center of the cable, and the slowest are carried closer to the 
shield).  Each data line has its paired return, which might or might not 
match pairing in the HD8-ASYNC.  At low speeds it wouldn't matter, but higher 
speed async signals might suffer from increased crosstalk.

You can see the way SCSI LVD/SE cables are laid out by looking at 
http://www.paralan.com/lvdmsepinout.html
-- 
Lamar Owen
Chief Information Officer
Pisgah Astronomical Research Institute
1 PARI Drive
Rosman, NC  28772
http://www.pari.edu