[ct-user] CW functions

[Jim Reisert AD1C]

At 03:41 PM 6/25/2006, Ed K1EP wrote:

>The last you wrote, you said you were going to get a parallel keying 
>interface.  Buying a 9 to 25 pin adapter doesn't make a serial 
>keying interface into a parallel one.   Parallel interfaces will 
>only come with a 25 pin connector, serial interfaces come with 
>either a 9 or 25 pin connector.  If you are using CTWin, serial CW 
>keying is not supported, you must use the parallel port for CW 
>keying.  If you are using CT DOS, then you can use either the serial 
>(COM1, COM2, etc.) or parallel (LPT1, LPT2, etc.) ports.  The actual 
>keying circuit built in to a parallel or serial keying cable is 
>virtually identical, they are just connected to different pins and 
>possibly expect different voltage levels. or polarities.

What Ed said.

On a PC, the COM port is a 9-pin or 25-pin MALE receptacle.  The LPT 
port is a 25-pin FEMALE receptacle.

Buying an adapter does NOT solve the problem.  They are two different 
interfaces.

Your software SAYS that you have an LPT port *somewhere*.  You need 
to find out what kind of connector that goes out to.

73 - Jim AD1C


-- 
Jim Reisert AD1C, 7 Charlemont Court, North Chelmsford, MA 01863
USA +978-251-9933, <jjreisert at alum.mit.edu>, http://www.ad1c.us