Points North Ltd.

Marine Gyro Compass / Navigational & Communication Systems   Marine Electrical & Electronic Systems

INTRODUCTION

Modern navigation aids send their data in NMEA 0183 format, and heading is related to ship’s bow. On a ferry with a stern facing bridge, the direction has to be reversed for the instruments to make sense. This interface is programmed to reverse the direction of GYRO, RELATIVE WIND and DUAL AXIS LOG

A KW909 (C) data combiner would be required to combine the data from the three instruments mentioned above to feed into the direction reversing KW909 (F).

SPECIFICATION

INPUT: NMEA 0183 port. Opto isolated. Programmed for all NMEA heading sentences, required by specification $HEHDT, $WIMWV and $VDVBW.

OUTPUT: Reversed data NMEA 0183.

• $HEHDT output rate default is 1 per second and whenever heading changes.
• $WIMWV, wind data in time with input.
• $VDVBW, dual axis log in time with input.
• 5v CMOS limited 5mA drive.
• NMEA 0183, RS422, RS232 compatible..

POWER: 9 to 32v DC at 200mA.

HOUSING: Duck Egg Green diecast box 222 x 146 x 55mm fitted with compression glands.

FEATURES: LEDs on data in and out and bicolour status led.

• Power fail and program run watchdog circuit.