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8 Installation
2.3 Cabling
Once you have secured your NAIS-300 to a flat surface,
you will need to connect the power, SimNet/NMEA2000
and RS232 cables supplied with the unit. The RS485 cable
and switch are not supplied, but would be fitted in the
same manner.
With reference to the connector wiring, Figure 2.1 and the
assembly diagram, Figure. 2.2, wire your unit as follows:
Figure 2.1 - Connector wiring
+12vdc
0v.
NMEA0183-HS
(RS485)
Out +ve
Out -ve
In -ve
In +ve
NMEA0183-HS
(RS232)
Out -ve
Gnd.
In +ve
Switch +
Switch -
Power
External Switch
SimNet/NMEA2000
Connector
NAIS-300 Case
Power
Connector
NMEA0183-2 & Switch
Connector
Grommet
Nipples
SimNet/NMEA2000
Socket Splash
Cover
Clamp
Retaining Screws
Figure 2.2 - NAIS-300 assembly