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NDC-4 NMEA Multiplexer

Combine multiple sources of NMEA 0183 data into a single stream.

Flexible and powerful enough to be the heart of a simple system, or one of many Actisense products in a more complex system.

PLEASE NOTE: The NDC-4 has been replaced by the PRO-NDC-1E.

Where To Buy

The Actisense NDC-4 allows up to five NMEA 0183 sources to be multiplexed into a single stream*.

Two flexible ISO-Drive outputs allow two different downstream talker baud rates to be created, ensuring maximum system flexibility.

It provides complete access to all NMEA 0183 data sources, configurable filters to remove unwanted data using NDC Control Centre, as well as enabling an on-board PC to read and add the combined data stream.

Factory preconfigured versions enable the NDC-4 to be used out of the box for AIS operation (NDC-4-AIS). An ‘autoswitch’ option is also available (NDC-4-ASW) to provide redundancy options to your NMEA 0183 network.

*Four inputs on the USB version, as the USB interface acts as the fifth channel, overriding the fifth OPTO input.

Ordering Information

(Part number/s)

NDC-4

Looking for an even more powerful NMEA 0183 multiplexer? Discover the PRO-MUX-1

 

  • Multiplex up to five NMEA 0183 devices
  • Filter unwanted data leaving you with only what you need
  • Preconfigured versions for AIS (NDC-4-AIS) and Autoswitch (NDC-4-ASW) operation
  • USB option available for simple connection to a PC (NDC-4-USB)
  • USB kit (NDC-4-USBKIT) converts standard NDC-4 to an NDC-4-USB

Power Supply
Supply Voltage 8-35 V
Supply Current 40 mA max @ 12V DC under no load
Power Supply (USB)
Supply voltage 4.75-5.25 V
Supply current 75 mA max
NMEA0183 Port – Listeners & Talkers
Number of Listener / Input Ports 5 Isolated NMEA 0183 Listeners (4 when using USB)
Number of Talker / Output Ports 2 Isolated NMEA 0183 Talkers
Compatibility Fully NMEA 0183, RS422 & RS232 compatible. RS485 Listener compatible
Listener Input Voltage Tolerance -15V to +15V continuous, -35V to +35V short term (<1 second)
Listener Input Protection Current limited, overdrive protection to 40V DC
Talker Output Voltage drive >= 2.2V (differential) into 100Ω
Talker Output current at max load of 100 ohm 21 mA
Talker Output short circuit current 50-55 mA
Talker Output Protection Short circuit and ESD
Connectors 2-way Screw Terminals, 5.08mm pitch
Speed / Baud Rate
Listener Ports 0 & USB 4800 – 115200 bps
Listener – Ports 1, 2 & 3 4800 – 57600 bps
Listener – Port 4 4800 bps
Talker 0 & 1 4800 – 115200 bps
Mechanical
Housing Material Polycarbonate, Light Grey
Lid Material Polycarbonate, Clear
Gasket Material EPDM Synthetic Rubber
Gland Clamping Range 4.5-10mm
Dimensions (Including Cable Glands) 132mm (W)  x 108mm (H) x 55mm (D)
Weight 190g
Mounting Bulkhead Mount
General
Operating Temperature -20 to +70 °C
Storage Temperature -40 to +85°C
EMC EN60945:2002 (Section 9 & 10)
IP Rating IP66
Guarantee 3 Years (5 Years if registered)

Here are some Frequently Asked Questions about the NDC-4.

Need more help? Visit our Support Centre.

Actisense is dedicated to providing up-to-date software and resources for our products. Here are some useful tools and documentation to help you make the most of your product:

The Actisense NDC-4 allows up to five NMEA 0183 sources to be multiplexed into a single stream*.

Two flexible ISO-Drive outputs allow two different downstream talker baud rates to be created, ensuring maximum system flexibility.

It provides complete access to all NMEA 0183 data sources, configurable filters to remove unwanted data using NDC Control Centre, as well as enabling an on-board PC to read and add the combined data stream.

Factory preconfigured versions enable the NDC-4 to be used out of the box for AIS operation (NDC-4-AIS). An ‘autoswitch’ option is also available (NDC-4-ASW) to provide redundancy options to your NMEA 0183 network.

*Four inputs on the USB version, as the USB interface acts as the fifth channel, overriding the fifth OPTO input.

Ordering Information

(Part number/s)

NDC-4

Looking for an even more powerful NMEA 0183 multiplexer? Discover the PRO-MUX-1

 

  • Multiplex up to five NMEA 0183 devices
  • Filter unwanted data leaving you with only what you need
  • Preconfigured versions for AIS (NDC-4-AIS) and Autoswitch (NDC-4-ASW) operation
  • USB option available for simple connection to a PC (NDC-4-USB)
  • USB kit (NDC-4-USBKIT) converts standard NDC-4 to an NDC-4-USB

Power Supply
Supply Voltage 8-35 V
Supply Current 40 mA max @ 12V DC under no load
Power Supply (USB)
Supply voltage 4.75-5.25 V
Supply current 75 mA max
NMEA0183 Port – Listeners & Talkers
Number of Listener / Input Ports 5 Isolated NMEA 0183 Listeners (4 when using USB)
Number of Talker / Output Ports 2 Isolated NMEA 0183 Talkers
Compatibility Fully NMEA 0183, RS422 & RS232 compatible. RS485 Listener compatible
Listener Input Voltage Tolerance -15V to +15V continuous, -35V to +35V short term (<1 second)
Listener Input Protection Current limited, overdrive protection to 40V DC
Talker Output Voltage drive >= 2.2V (differential) into 100Ω
Talker Output current at max load of 100 ohm 21 mA
Talker Output short circuit current 50-55 mA
Talker Output Protection Short circuit and ESD
Connectors 2-way Screw Terminals, 5.08mm pitch
Speed / Baud Rate
Listener Ports 0 & USB 4800 – 115200 bps
Listener – Ports 1, 2 & 3 4800 – 57600 bps
Listener – Port 4 4800 bps
Talker 0 & 1 4800 – 115200 bps
Mechanical
Housing Material Polycarbonate, Light Grey
Lid Material Polycarbonate, Clear
Gasket Material EPDM Synthetic Rubber
Gland Clamping Range 4.5-10mm
Dimensions (Including Cable Glands) 132mm (W)  x 108mm (H) x 55mm (D)
Weight 190g
Mounting Bulkhead Mount
General
Operating Temperature -20 to +70 °C
Storage Temperature -40 to +85°C
EMC EN60945:2002 (Section 9 & 10)
IP Rating IP66
Guarantee 3 Years (5 Years if registered)

Here are some Frequently Asked Questions about the NDC-4.

Need more help? Visit our Support Centre.

Actisense is dedicated to providing up-to-date software and resources for our products. Here are some useful tools and documentation to help you make the most of your product:

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