How To Set Up The Simrad Iti Trawl System Interface - Simrad ES70 - REFERENCE MANUAL REV A Reference Manual

8 Click to save the current settings and close the dialog.
OK

How to set up the Simrad ITI Trawl system interface

Communication with the Simrad ITI (Integrated Trawl Instrumentation) is based on
NMEA and proprietary telegrams.
Supported telegram formats
• DBS Depth below surface on page 190
• DBS Depth of trawl below surface on page 198
• HFB Trawl headrope to footrope and bottom on page 199
Wiring procedure for serial communication
1 Locate a free RS-232 serial port that can be used to connect the ITI system.
On the ES70 computer, connect the receive signal
2
on pin 3, and
Tx
On the ITI transceiver, use connector
3
2, the transmit signal
Ensure that the length of the cable does not exceed approximately 50 meters. If a
4
longer cable is required, you may need to use buffer amplifiers on the serial line.
Setup procedure
This procedure explains how the ES70 can be set up to receive ITI information on a
serial port.
1 Click the icon under the
Setup
2 Click
Installation
On the sub-menu
→ I/O Setup on page 150
In the dialog, select which serial line to use to accept ITI information.
3
I/O Setup
4 Click on the chosen port to select it, then click the
dialog.
Inputs
5 In the
Select Inputs
to connect it.
338106/A
on pin 5.
ground
Serial A
on pin 3, and
Tx
menu to open the
Main
to open the
Installation
to open the
I/O Setup
dialog, locate the
ITI
on pin 2, the transmit signal
Rx
. Connect the receive signal
on pin 5.
ground
Setup
sub-menu.
dialog.
I/O Setup
button to open the
Input
on the left side, and click the [>] button
Operational procedures
on pin
Rx
sub-menu.
Select
89