Furuno ETR-30N Operator's Manual page 6

Multiple network sounders
*1 = By using a hub, one NavNet series radar and two NavNet display units may be connected.
*2 = Maximum two network sounders may be installed.
*3 = Connect to NET KP.
* = By using a hub, one NavNet series radar and two NavNet display units may be connected.
Network Sounder
ETR-30N
*3
Network Sounder
ETR-6/10N*2
System configuration, two ETR-30N
Network Sounder
ETR-30N
Network Sounder
ETR-6/10N
System configuration, ETR-30N + ETR-6/10N
HUB*1
HUB*
v
NavNet Series
NavNet
Radar
Display Unit
NavNet
Display Unit
NavNet
Display Unit
: Standard
: Optional Supply
: Local Supply
NavNet Series
NavNet
Radar
Display Unit
NavNet
Display Unit
NavNet
Display Unit
: Standard
: Optional Supply
: Local Supply