The best way to hook this up is to use four Cat6 gigabit Ethernet cables and a gigabit Ethernet switch (for example, a NETGEAR GS305):
1. Computer to switch
2. Paca(rana) #1 Port B to switch
3. Paca(rana) #2 Port B to switch
4. Paca(rana) #1 Port A to Paca(rana) #2 Port A
When starting Kyma, it will ask you which Paca(rana) you would like to use; the audio interface of the Paca(rana) you select will be the one that Kyma uses.
Firmware updates need to be done to each Paca(rana) individually. With the above configuration it is easy; start Kyma once, choose Paca(rana) #1, update it; after Kyma quits, start it again, select Paca(rana) #2, update it.