your conductor will operate with 16384 channels....
and will control the 4 pixelnet universes connected to it.
each slave will operate with 16384 channels...
and will control the 4 pixlenet universes connected to it.
you don't have to worry about which E.1.31 universes they respond to... they don't respond to any.
they only use the home network to synch between each other (Etd - > slave{s})
you can design a show will 20,000 channels, and assign the first 16,384 to the conductor (channels 1-16384)
you can set the slave to operate with the last 16384 channels (3617-20000)
you just set the channels with what part of the sequence you place on the card.
now...
if you're NOT using the Conductor/Slave (meaning, your show is being run from a computer)
and you have more than 16384 channels, you would need firmware to make the EtherDongle to respond to those other channels
you could use the test firmware if you need to operate now, but it's not supported.