Installation
20220596E 77
RX1
RX1+
JUNCTION UNIT
MAIN PCB
DATABOX (NMEA Input)
Vbat+
Spare
Gnd
Red Wh
Bn
Gn
Blk
TX1+
NMEA
Output2
TX1
GREEN
RED
BLACK
WHI
TE
TX1
TX1+
Gnd
Vbat+
IS11
COMPASS OR RUDDER
Figure 4-24 IS11 Instrument connection
4.26 External Alarm
The external alarm circuit has an open collector output for an
external alarm relay or buzzer. The operating voltage for the
circuit is the main supply voltage. Max. load on external alarm
output is 0.9 Amp.
Ext.
alarm
TB6
J300X/J300X-40 JUNCTION UNIT
POWER PCB
TB7
TB8
TB9
Figure 4-25 External alarm connection
4.27 NI300X NMEA Interface Unit
The NI300X is normally installed inside a console or locker close
to Nav receivers, radar and instruments to keep cables short.
The unit does not have controls that need to be operated during
installation or use, but you should be able to take the lid off for
inspections, to view LED indication of received signals. It
should be installed with the cable inlet and the Robnet
To Next Page
Loading...