Furuno 1734C - Manual (Page 29)

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2.2 External Buzzer (OP03-136, option) Connection
The optional external buzzer provides a louder alert when the guard alarm is violated.
External buzzer
Type: OP03-136
Code no.: 000-086-443
Further, you need the optional cable assy MJ-A7SPF0007-050C (w/7P connector, 5 m,
code no. 000-154-028-10).
1. Attach the MJ-A7SPF0007-050C cable assy (option) to the DATA 3 port at the rear of
the display unit.
2. Cut the XH connector at the end of external buzzer cable with appropriate length.
3. Solder the cables made at step 2 with MJ-A7SPF0007-050C cable as shown below.
Red
Black
External buzzer MJ-A7SPF0007-050C
Soldering
Cut other cable, and wrap here with tape.
Connection of external buzzer and display unit
using cable assy type MJ-A7SPF0007-050C cable
4. Fasten the buzzer with the double-sided tape or two tapping screws (3x15 or 3x20, local
supply).