Does Cartography network to multiple displays?

[Yachtspecco]

Thanks for the quick response. I don't understand the link you provided refers to a Seatalk hs network not a Seatalk ng network which both the currently installed and the proposed new equipment utilize. There is already a ng network in place with backbone and terminators fitted. Are you saying an additional hs network will need to be in place including a network switch for the 3 displays to share cartography, Chirp radar, and depth? Once the new equipment is installed the only Seatalk 1 equipment aboard would be the Smart Controller RF box as the existing Pathfinder display and analog radar are being replaced by the new equipment.
John