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 TM 11-5895-1847-12&P
OPERATOR MAINTENANCE
GLOBAL MARITIME DISTRESS AND SAFETY SYSTEM
GMDSS WIRING DIAGRAMS
GMDSS WIRING DIAGRAMS
This work package contains all required wiring diagrams for the Global Maritime Distress and Safety System
(GMDSS). Wiring diagrams are provided for all electrical and electronic systems and circuits.
All components requiring direct current power have redundant power capability. In the event of an alternating current
power failure, all components requiring direct current power are powered by the GMDSS emergency batteries.
All components requiring alternating current power are connected through the emergency power circuit. In the event
normal alternating current is not available, the GMDSS components will be supplied with emergency alternating
current by the ship's emergency generator.
9701
GMDSS
CONSOLE
WATCH RECEIVER
J9
TO
WKR ANTENNA
J1
50 OHMS CENTER
SHIELD
J1
P2
GROUND
1
A
+12V DC
B
2
PTT
C
3
4
D
DATA
DATA
5
E
AF
6
G
AF
7
J
8
F
GROUND
9
H
K
P3
GND
1
+12V
2
PTT
3
DATA
4
DATA
5
6
AF
7
AF
8
9
GROUND
MF/HF DSC
CONTROLLER
RADIO
1
2
5
3
4
7
8
6
9
J2
PRINTER
3
TXD
A
A
SERIAL
3
2
RTS
B
B
4
PRINTER
CTS
5
C
20
C
20
7
E
7
7
SG
E
20
DTR
D
D
+
+12V
115VAC
-
-12V
GROUND
EP103-8
GND
REMOTE
ALARMS
GROUND
5
2W
7
J3
NMEA
D
1
E
2
INTERFACE AND SWITCHBOX
F
3
SHEET 4
4
5
GROUND
6
A
TO INMARSAT-C
SHEET 2
B
Figure 1. LCU 2000 GMDSS Wiring (Sheet 1 of 6).
0154 00 1
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