Furuno TZT2BB Instructions Manual page 26

Conversion from MCU-001 to MCU-005 before Retrofitting to TZT2BB
The conversion kit OP19-19 comes with a front cover, rubber key, slot hole cover, and an SD card for program update. Make sure that the MCU-001 is converted to MCU-005 before retrofitting to the TZT2BB.
(1) Insert the program SD card to the MCU-001 (upper slot).
(2) Turn the MFDBB on. The MCU-001 will also turn on and update will automatically start. It will take approx. one (1) minute to finish the update process. (The LED is lit while updating.)
(3) See that the power LED will flash after the update process finishes. The conversion is complete.
(4) Replace the front cover and rubber keys, as well as covering the SD slot hole.
Integrated Network with "MFDBB and TZT9/14" – Changed to "TZT2BB and TZT9/14"
In the integrated network of NavNet 3D (MFD8/12/BB) and NavNet TZtouch (TZT9/14/BB), the TZT9/14/BB is connected to the MFD8/12/BB network via Ethernet only. The following example shows the MFDBB networked with TZT14. The TZT14
is networked to the MFDBB via Ethernet only. When retrofitting the MFDBB to TZT2BB, add the NMEA2000 drop cable for the TZT14.
New – TZT2BB with TZT14 Previous – MFDBB with TZT14
26