Thanks to Jim, my aux ports are working now! The PP must be uppercase, as in the examples below: rpt cmd 2211 cop 61,PP4=1 0 ; Parallel Port 4 high rpt cmd 2211 cop 61,PP4=0 0 ; Parallel Port 4 low rpt cmd 2211 cop 61,PP5=1 0 ; Parallel Port 5 high rpt cmd 2211 cop 61,PP5=0 0 ; Parallel Port 5 low 73, Kyle K0KN --- Original Message --- Ok, I have the answer: rpt cmd 2211 cop 61,pp4=1 0 JIM