Simrad SP270 Installationshandbuch PDF herunterladen (Seite 71)

Installation procedures

851-160572 / B

Connecting auxiliary equipment

General

It is not necessary to make the connection of the auxiliary

equipment before the start-up procedure is finished, and this

equipment may therefore be connected later. Anyhow, do not

connect the plugs for the auxiliary equipment to the Sonar

Control Unit before mentioned in a later chapter.

The SP270 sonars require connection of a speed log and a

course gyro. An inaccurate log or gyro input will cause

inaccurate indication of the vessel and target movements.

Speed log

• Pulse log: 100, 200 or 400 pulses/nm.

• Serial line, standard NMEA 0183; RS232, RS422 or Current

loop.

Course gyro

• 3-phase synchro signal, 20-220V L-L, 50/60/400Hz

Gear ratio 1:360, 1:180, 1:90, 1:36.

• 3-phase stepper signal, 20-220V L-L.

Gear ratio 1:360, 1:180, 1:90, 1:36.

• Serial line, standard NMEA 0183; RS232, RS422 or Current

loop.

Echo sounder

In order to get a depth indication on the catch control page on

the sonar, one of the following Simrad echo sounders can be

connected:

• EQ50, EQ100, ES380 Series, ES500 (RS-232 serial line).

Trawl system

In order to get the trawl information on the sonar display, one of

the following Simrad trawl systems can be connected:

• FS Trawl sonar (RS-232 serial line or 20mA current loop).

• ITI Integrated Trawl Instrumentation (RS-232 serial line).

Connecting the course gyro

The Sonar Control Unit can be connected to a course gyro with

one of the following outputs (tick off for the type which will be

connected):

• 3-phase synchro signal

• 3-phase stepper signal

• Serial line (NMEA 0183)

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Simrad SP270 Installationshandbuch Seite 71