Simrad SH90 - PRODUCT DESCRIPTION REV A Specifications download pdf (Page 77)

Installation

20220760L 75

Power connection

There is no power cable supplied for the Transceiver. Use a

cable with minimum wire gauge of 1.5mm

(AWG14). The outer

diameter should be 10 mm (0,4”) to ensure a tight fit through the

gasket.

Connect the Power cable to TB1 on the IS15 Transceiver PCB

and the other end to a circuit breaker.

The connection is polarity protected and monitored by a green

LED. If a red LED is lit on the PCB, swap the supply wires (see

Figure 6-16).

6.10 IS15 Instruments as NMEA repeaters

Figure 6-20, Figure 6-21 and Figure 6-22 are examples of how

IS15 instruments can be used as NMEA repeaters. Depth, speed

and temperature can be displayed when connected to a Simrad

CEXX Chart plotter/Echo sounder or CAXX Multifunction

radar. Any preferred combination of instruments can be used, the

IS15 Combi for example is an excellent display also for wind

data presentation.

Installing the Roblink Power Cable

The configuration in Figure 6-20 is limited to a total of 3

instruments and a Roblink Power Cable (P/N 22093587) is

required to enhance the Roblink signals. Connect the cable to a

circuit breaker. Extend the cable if necessary using a wire gauge

of 0,75 mm

(AWG18).

Notes !

1. If an IS15 Wind Transducer is connected to the IS15

instruments when using this configuration, it must

plugged into connector no. 2 (Roblink) on instrument head

no. 3. Refer to note 2 for NMEA connection.

2. If only a single instrument is installed (Figure 6-22) there is

no need for the Roblink Power Cable. Simply cut the 0,3 m

(1’) cable that comes with the instrument in two and extend

the halves to the 12V supply and the NMEA source

respectively using twisted pair cable. – Also refer to

instructions for Roblink turn-off (paragraphs 7.3 or 7.13.)

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Simrad SH90 - PRODUCT DESCRIPTION REV A Specifications Page 77