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Wiring | NSS evo2 Installation Manual
Wiring
Guidelines
Care must be taken when running cables in a boat, to ensure that the cables are protected
from damage and do not interfere with mechanical systems such as throttle cables and hatch
covers.
At each end of a cable, it is advisable to leave a short loop hanging lower than the termination
point. This prevents any water that may get in contact with the cable from running down it to
termination points vulnerable to corrosion.
Extending cables should be done with suitable crimp connectors or solder and heat shrink.
Keeps joins as high as possible to minimize possibility of water immersion.
Routing cables adjacent to high current or high frequency signal cables could cause noise to
be induced from one device to another. Allow spacing between cables where possible.
Secure all cables at regular intervals, to prevent movement during boat operation. Cable
movement may cause fatigue at termination points or cause the cable to interfere with other
boat systems.
Allows enough cable slack for easy access to connectors when removing the device from a
bracket or flush mount installation.
Warning: Before starting the installation, be sure to turn electrical power o. If
power is left on or turned on during the installation, re, electrical shock, or other
serious injury may occur. Be sure that the voltage of the power supply is compatible
with the NSS evo2 display
Warning: The positive supply wire (red) should always be connected to (+) DC with
a suitable fuse or a circuit breaker (closest available to fuse rating).
Power connection
NSS evo2 displays are designed to be powered by a 12 or 24 V DC system. They are protected
against reverse polarity, under voltage and over voltage (for a limited duration). A fuse should
be fitted to the positive supply; 3A for the 7” & 9” models, and 5A for the 12” and 16” models.
1 NSS evo2 display
2 Four pin power cable
3 Positive supply, 12/24V (red wire)
4 Negative (black wire)
5 Power control (yellow wire)
6 Alarm output (blue wire)
Power Control connection
The yellow Power Control wire on the NSS evo2 power cable can either be an input that will
turn on the processor when power is applied, or an output that turns on other devices when
the processor is powered on. It can be configured at the installation stage to control the
power state of displays and compatible devices. When commissioning the system, the NSS
evo2 can be set to be a Power Control Slave or Power Control Master.
Power Control configuration options of the NSS evo2 are:
• NSS evo2 to turn on when power key pressed: Yellow wire not connected
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