MD36-6 STEP (S-TYPE) TO NMEA INTERFACE

DESCRIPTION

The MD36/6 is a solid-state Step (S-Type) to Digital Interface. It converts a DC Step (S Type) transmission of a ship’s heading from legacy equipment to a modern NMEA 0183 compliant Digital Transmission format. There is an alignment facility on the unit to align the digital output of the MD36/6 to the incoming heading signal.When suitably adjusted the MD36/6 reads the step input heading to within 1/6° and re-transmits an RS422 output following the NMEA (0183) protocol with no errors.
Constructed in a robust die-cast aluminium enclosure and finished in RAL9005 Jet Black fine texture powder coat paint, the MD36/6 is designed to complement existing marine navigation equipment. Supplied for bulkhead mounting as standard, compact and rugged, the MD36/6 offers a compact Step (S-Type) to NMEA Interface solution for locations where available space is limited.

The MD36/6 Step (S-Type) to NMEA Interface from Marine Data, easy to install and simple to maintain.

FEATURES

• Converts Legacy STEP to Digital NMEA 0183
• Allows Legacy Equipment to connect to NMEA Systems
• 3 Line STEP Input
• 24-70 V dc STEP Supply, Smoothed or Unsmoothed
• Low Power Consumption
• Compact and Robust

APPLICATIONS

• Suitable for converting from any STEP (S-Type) transmission
format to a digital NMEA 0183 (IEC61162-1) transmission format
• Especially useful for retro-fitting legacy systems with modern
equipment requiring a digital transmission of ships heading

RELATED PRODUCTS

• The complete range of Marine Data Heading Repeaters

SPECIFICATIONS

PHYSICAL

Weight: 1.0 kg
Dimensions: H 222 mm; W 146 mm; D 55 mm
Mounting: Bulkhead mounted
Connections: 3x M20 Cable Glands; M4 Earth Stud
Construction: Aluminium alloy enclosure
Finish: Jet Black RAL9005, fine texture

ELECTRICAL

Power Supply: 24 V dc nominal; 4 W max; (0.12 amps @ 24 V); 18-32 V dc
Data input: STEP (S-Type) 3 line, common positive or negative 24-70 V dc STEP Supply, smoothed or unsmoothed
Data Output: NMEA 0183 (IEC 61162-1) $HEHDT,xxx.xx,T*CS 4800 Baud; 10 messages per second

OPERATIONAL

Performance: 1/6° accuracy (limit of STEP signal)
MTBF: >30,000 hours
Error Indication: Status LEDs on internal PCB Status in NMEA sentence set to ‘invalid’

ENVIRONMENTAL

IP rating: IP54
Operating temp: -15°C to +55°C
RoHS: Compliant
Compass: Safe Distance 50 cm

APPROVALS

Conforms with: IEC 60945; IEC 61162-1

ADDITIONAL

Option: Custom paint colour and stainless steel cable glands
– Subject to MOQ

DATASHEET