[TenTec] Omni V DB25 to DB9 wiring

Roger Borowski K9RB at bellsouth.net
Fri May 20 16:04:25 EDT 2005


Andy, By far, the easiest way is to use any standard serial (straight
through) cable, either 9 pin or 25 pin, and your local Radio Shack has an
adapter that with adapt one side to be what you need.
If you are determined to brew your own cable, here's the conversion between
9 and 25 pin serial connections;
DB-9 Pin 1  to> DB-25 Pin 8   >(DCD)
DB-9 Pin 2  to> DB-25 Pin 3   >(RXD)
DB-9 Pin 3  to> DB-25 Pin 2   >(TXD)
DB-9 Pin 4  to> DB-25 Pin 20 >(DTR)
DB-9 Pin 5  to> DB-25 Pin 7   >(GND)
DB-9 Pin 6  to> DB-25 Pin 6   >(DSR)
DB-9 Pin 7  to> DB-25 Pin 4   >(RTS)
DB-9 Pin 8  to> DB-25 Pin 5   >(CTS)
73, -=Rog-K9RB=-


----- Original Message ----- 
From: "A.W. B." <a7bull at hotmail.com>
To: <tentec at contesting.com>
Sent: Friday, May 20, 2005 3:20 PM
Subject: [TenTec] Omni V DB25 to DB9 wiring


Ok...I used to know this...The wiring diagrams in the Omni V manual are for
DB25 to DB25 for a PC but I want to have a DB9 at the computer end for a
standard serial port. Do I wire the DB9 like the diagram for the Mac DB9 in
the manual? I seem to remember that doesn't work. Any help would be
appreciated. Thanks!
             Andy W1AWB


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