Raymarine Radar Scanner User Manual download pdf (Page 43)

Chapter 2: Installing the Scanner 35

CAUTION:

If you do not have a thermal circuit breaker or fuse in your power

circuit, e.g. fitted to the DC distribution panel, you MUST fit an

in-line breaker or fuse to the positive (red) lead of the power

cable.

The open array scanner has a power switch fitted to the pedestal. This

switch can normally be left ON. However, if the scanner is being

serviced or if any personnel are in the vicinity of the open array, the

switch should be set to OFF.

Scanner connection

The inter-unit cable is connected to the scanner as described in

Sections 2.1 and 2.2. If you are using an inter-unit extension cable,

connect this to the display unit, and connect the supplied cable to the

extension cable. The scanner connector pins are shown in the

following diagram, together with the connections and core colors.

CAUTION:

The display connector on the inter-unit cable is a moulded plug

that cannot be replaced. DO NOT remove this moulded plug.

Table 2-1: Isolator Switch/Thermal Breaker/Fuse Values

Vessels

Supply

Device Open Array Systems

4 kW 10 kW

Radome

Systems

12 V*

Isolator Switch min. rating 30 A n/a 20A

Thermal Breaker rating 15 A n/a 10A

Fuse value 20 A n/a 15 A

24/32 V**

Isolator Switch min. rating 15 A 15 A 15 A

Thermal Breaker rating 8 A 10 A 5 A

Fuse value 10 A 15 A 8 A

* 10 kW scanners cannot be directly connected to 12 V

*Radome systems cannot use 32V.

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Raymarine Radar Scanner User Manual Page 43