[Orion] mixing Orion with MixW ??

[dbp at tds.net]

Hi-
  How can I get the Orion to talk with my registered MixW.
 Orion set up:
 -PSK works fine, but that just uses the sound card. 
 -I use RTS set to PTT to switch to TX thru a small relay when using PSK. 
 -DTR is set "always off". 
 -The serial port is set to 9600-8-n-1. 
 -I have tried "CAT" in the software set both checked and unchecked.
 -The serial cable for the Orion is straight thru with all nine pins wired.
 -MixW is set to TT Orion.

Am I missing a software switch somewhere?
Thanks for the bandwidth.
73 de Dave