Updates:
Still not working correctly. What should the Keyer Menu settings and I/O menu settings on the RRC be set to for an external keyer? With Keyer "enabled" in the Keyer Menu, I am keying the radio, but it's producing a steady stream of dahs. With Keyer enabled in the Keyer Menu, no keying, no sidetone, etc. I've tried I/O menu settings for IN0 set to both "Keyer" and "I/O" with same results; no radio keying unless "keyer" is enabled in the Keyer Menu.
Also, I have verified with an ohm meter that I am getting proper key closures coming from the KEY1 jack of the WinKeyer, dits and dahs with proper spacing, now being fed to PIN4 of the RJ45 I/O and Ground PIN8.
Tnx for any suggestions,
Dennis, WU6X