4
1.3 POWER SUPPLY
Either 24 VDC or 100-115/200-230 VAC ship's mains is connected to the Distribution Box.
The connection on TB7 must be changed depending on ship's mains, as follows.
1) When ship's main is 100 to 115 VAC;
2) When ship's main is 200 to 230 VAC;
The AC supply voltage is converted to 24 VDC on the CONE board in the Distribution Box and
supplied to the Display Unit and the Digital Depth Indicator.
The DP-ON signal (+5V) from the ANLG board activates the relay K2 on the CONE board in
the Distribution Box, and then the 24 VDC is supplied to the Digital Depth Indicator through
relay K2. See Figure 1.3.
Fig. 1.3 Power circuit on the CONE board
1
2
3
TB7
Black
Orange
White
1
2
3
Orange
Black
White
TB7
Figure 1.2 Connections on TB7
1.3 POWER SUPPLY
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