;; card 1       
context=card1
;; inbound group on card1
group = 1
channel => 1-23
channel => 25-47

;; outbound group on card1
group = 2
channel => 49-71
channel => 73-95           

;; card 2      
context=card2
;; inbound group on card2
;group = 3    
;channel => 97-119
;channel => 121-143

;; outbound group on card2
;group = 4                
;channel => 145-167
;channel => 169-191