Robert Kent G4POY Monday, 17 March 2014 11:37
Hi Joe. Sorry I must have missed your email.
The connections depend on the keyer or radio you are using and you should refer to the equipment manual for the appropriate size, type of connector and how to connect it. It will not be a mono jack plug!!
As a guide if a stereo jack plug is used the tip will be the dot, centre will be the dash and top will be common. See http://www.kent-engineers.com/EK4info.htm
I hope this helps but if you need more information please contact me.