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Installation procedures

851-160572 / B

• RS-232 serial line

• RS-422 serial line

• 20 mA current loop

The format of the serial line data is standard NMEA 0183, and

the telegram can contain both the course and speed data (refer to

the telegram format previously described).

When connecting the 9-pin D-connector, note that each of the

three types of serial lines has different connection pins:

RS232: Serial line signal PORT B pin-2

Signal reference PORT B pin-5

RS422: RS422+ PORT B pin-1

RS422- PORT B pin-4

20mA current loop: CLI+ PORT B pin-6

CLI- PORT B pin-9

1 Use a 9-pin D-connector, male type, for connecting the

serial line to port B on the Sonar Control Unit (this

connector is not included in the delivery). To make the

connections, refer to the pin connection list above, and

figure 24 which shows the pin location of the connector

seen from the wire soldering side. The cable screen should

be connected to the connector housing.

9 8 7 6

MALE

(CD1872)

CLI-

CLI+

RS232-

RS422-

RS232+

RS422+

5 4 3 2 1

Figure 25 Connections for a

gyro with serial line output

2 Locate the DIL switch S1 on the Control Unit Board (refer

to figure 20), and set the switches according to the table

below.

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 ... 253 254

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Simrad SP270 Installationshandbuch Seite 83