Furuno M12-05BM+05BF-010 Design Manual page 20

Fig.49 RJ45 jacks for Ethernet connection on MFDBB
Power Synchronization
Power on/off synchronization amongst all of the NavNet 3D display units can be
achieved when the dedicated Ethernet hub HUB-101 is used. Set the corresponding
DIP switch in the HUB-101 to ON position to activate this feature.
Table 9 Pin assignment of built-in Hub of MFDBB
NETWORK 1 & 2
#1 E_TD_P
#2 E_TD_N
#3 E_RD_P
#4 SW_P
#5 SW_N
#6 E_RD_N
#7 PWR_SW_N
#8 PWR_SW_P
1 2 3 4
Fig.50 HUB-101 with cover removed
Furuno CAN bus Network Design Guide
NETWORK 3 & 4
E_TD_P
E_TD_N
E_RD_P
SW_P
SW_N
E_RD_N
N.C.
N.C.
5 6 7 8
20
DIP switches #1 to #8
for ports 1 to 8, from left