User's Manual

Table Of Contents
Blue sign input
4-10 Chapter 4: Interface description 98-137573-A
4.6 Blue sign input
Blue sign is used on vessels that are subject to the Inland Waterway specifications where
the Blue sign is used as a special manoeuvre indicator. The SAILOR 6282 AIS Transponder
supports a direct connection to the Blue sign switch and is able to detect three logical
states:
Set
Not Set
Not Connected
The state Not Connected can be used to detect a broken wire.
4.6.1 Electrical interface
The Blue sign interface is shown below. The voltage on the Blue sign interface must be
between 12 and 24 VDC. The interface can be powered from the ship’s Blue sign switch,
alternatively it can be powered from the AIS Transponder.
Figure 4-6: Blue sign interface to SAILOR 6282 AIS Transponder, powered by Blue sign switch
Figure 4-7: Blue sign interface to SAILOR 6282 AIS Transponder, powered by SAILOR 6282 AIS
Transponder
O
O
O
O
O
N
C
P
+ Fused
-
-DC
+ 12-24 VDC
0.3A
+
2
1
Pos. 1: Blue sign not set
Pos. 2: Blue sign set
O
O
O
O
O
N
C
P
+ Fused
-
-DC
+ 12-24 VDC
0.3A
Pos. 1: Blue sign not set
Pos. 2: Blue sign set
1
2