Raymarine Pathfinder Radar RL70C PLUS User Manual

Page of 248
8-12
hsb
2
 PLUS Series Color LCD Display
System
 Con
nec
tion
s
8.6 System Connections
Grounding the System
It is important that an effective RF ground is connected to the system. You 
must ground the display by connecting the drain wire (shield) of the Power/
NMEA Input cable to the nearest ground point of the ship’s RF ground system.
If you need to extend the wire, the extension wire should be an 8 mm braid or 
AWG 10 (6.0 mm
2
) multi-stranded cable.
If your vessel does not have an RF system, connect the drain wire to the 
negative battery terminal.
DC Power Connection
The 
hsb
2
 series display is intended for use on ships’ DC power systems rated at 
12 V, 24 V or 32 V. However, the operating voltage of the radar and radar/
chartplotter displays is limited by the scanner to which it is connected as 
follows:
12 V and 24 V systems
Radome Scanner System
12 V, 24 V or 32 V 
4 kW Open Array Scanner System;
RC530/RC631
24 V or 32 V
10 kW Open Array Scanner System
The power connection to the display should be made at either the output 
of the battery isolator switch, or at a DC power distribution panel. 
Raymarine recommends that power is fed directly to the display via its 
own dedicated cable system and MUST be protected by a thermal circuit 
breaker or fuse, installed close to the power connection.
The DC system should be either:
Negative grounded, with the negative battery terminal connected to the 
ships ground.
Floating, with neither battery terminal connected to the ships ground.
CAUTION:
This system is not intended for use on “positive” ground vessels.
The power cable Ground (earth) connections must be connected to the 
ship’s ground as described above.
Power for External Equipment
External equipment cannot be powered from the display’s SeaTalk 
interface.
 
It must be powered from the ship’s supply or via a SeaTalk bus.
Refer to Section 8.8 for further details.