The cat c would split the nodes down . In this area we have 1 laser feeding 2 500 home nodes . So these 2 nodes would share the downstream freqs and the upstream freqs .So the catc would be done first depending on area and build so each node is ready to be fed by one laser per node . So when the upgrade is done each node has its own feed it doesn't share it with a another node . Hope this explains it a bit
