6-10
The main fuses are positioned next to the main power terminals.
NOTE: There is no main switch. To switch the Sig. Distributor AC power off, remove the
fuses.
Connections to Log 1 Sig.Processor
Term# Function Note
1A NMEA in 1 Connect to T-Series speed Lo
NMEA "A" output
1B NMEA in 1 Connect to T-Series speed Lo
NMEA "B" output
42A NMEA out 7 Connect to Lo
control NMEA "A" input
42B NMEA out 7 Connect to Lo
control NMEA "B" input
The NMEA in 1 connects to the NMEA out terminal 108 and 109 on the JLN-900 speed log
Sig.Processor.
4.3.1 NOTE! NMEA in 1
NMEA in 1 is supervised by the Sig. Distributor: if there is no NMEA the relay K1 will drop.
NMEA out 7 (terminal 42) connects to the NMEA in terminal on the Speed log
Sig.ProcessorJLN-900.
Redundancy connections to Log 1 Sig.Processor
Term# Function Note
5A NMEA in 5 Connect to Lo
NMEA "A" output (redundanc
)
5B NMEA in 5 Connect to Lo
NMEA "B" output (redundanc
)
JLN-900: NMEA in 5 connects to the redundancy NMEA output (Redundant STW) in Log 1
terminal 120 and 121. This will improve the redundancy of the system. Even if the Sig.
Distributor and/or the speed over ground log are malfunctioning, at least speed trough water
will still be presented on the redundancy outputs.
Connections to Log 2 Sig.Processor (option)
Term# Function Note
2A NMEA in 2 Connect to Lo
NMEA "A" output
2B NMEA in 2 Connect to Lo
NMEA "B" output
43A NMEA out 8 Connect to Lo
control NMEA "A" input
43B NMEA out 8 Connect to Lo
control NMEA "B" input
A second Speed Log can be connected to the Sig. Distributor. The NMEA in 2 and NMEA out
8 shall be connected to the NMEA connections of the Log 2 Sig.Processor via a twisted pair
cable.
NMEA out 1 will be directly connected, via redundancy relays, to NMEA in 1 (the main input
from speed log1) in case of loss of power or a failure in the Sig. Distributor.
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