Alarm System Connection; Input Signal From The Main Display Unit To Fe-720 - Furuno FE-700 Installation Manual

Alarm system connection

The power error and shallow water alarms, which produce audio and visual alarms in the event
of power failure and shallow water, can be output by connecting the distribution box to the ship's
alarm system.
Connect the DPYCYS-1.5 cable between TB1 in the Distribution Box and the alarm system of
the ship referring to the schematic diagram at the end of this manual.
Alarm System
DPYCYS-1.5
Digital Depth Indicator FE-720
There are two methods to connect the digital depth Indicator FE-720.
Case 1: Input signal from the main display unit to FE-720
The interconnection is as follows.
DISTRIBUTION BOX
FE-702
TTYCYS-4
TB3
TD1-A
1
TD1-B
2
24V
3
0V
4
GND
5
TD1-A
6
TD1-B
7
24V
8
0V
9
GND
10
TERMINAL BOX
DS-802(option)
MJ-A7SPF0009-020C
1
2
3
P
4
5
P
6
7
8
P : Twisted pairs
18
TB1
NORMAL CLOSE
1 1
2
NORMAL OPEN
3 RELAY COMMON
DIGITAL DEPTH INDICATOR
FE-720
IN/OUT
< 1 < TD-A
WHITE
< 2 < TD-B
BLUE
< 3 < RD-A
YELLOW
< 4 < RD-B
GREEN
< 5 < 24V
RED
< 6 < 0V
BLACK
< 7 < GND
Select either
one.