INPUT 1: Synchro, for nominal 115v ref 90v signals or nominal 26v ref 12v signals.
Specify on order. Other synchro voltages easily accommodated.
Frequency 40 to 550 Hz. Reference input is isolated by transformer.
The synchro phases have a common at centre of the three phases, connected to the power 0v. For 90 volt synchro the input is via 270K in series with each phase.
Other voltages scaled at R = 3 x v Kohm.
Ratio selected by jumper, and EPROM configuration.
Conversion accuracy 12 bits. Conversion rate 20 per second. Switches to use the NMEA 0183 input if synchro fails.
INPUT 2: NMEA 0183 port. Programmed for all NMEA heading sentences input, plus Cetrek and Yokogawa data. Gyro data takes priority over magnetic input automatically.
OUTPUT 1: NMEA 0183, Cetrek, or Yokogawa 4800 baud data. NMEA sentence HEHDT,xxx.x,T cr lf as default.
Output rate default is 1 per second AND whenever heading changes, in order to keep to spirit of NMEA standard, and minimise data sent. Fixed data rates optional, and apply to Cetrek and Yokogawa data out.
5v CMOS limited 5 mA drive. NMEA 0183, RS422, RS232 compatible.
OUTPUT 2: Three 5v CMOS drivers 5mA. For: Yokogawa 2400 baud data, or Furuno AD10 output, or 6 step per degree stepper output as standard.