NDC-2 NMEA MULTIPLAYER

The NDC-2 is no longer in production. Please see the current NDC-5 model.

The Actisense NMEA Multiplexer / Combiner allows connection of up to four NMEA (National Marine Electronics Association) inputs to be multiplexed/combined in to one NMEA output.

The Actisense NMEA Multiplexer / Combiner allows connection of up to four NMEA (National Marine Electronics Association) inputs to be multiplexed/combined in to one NMEA output.

This approach offers these major advantages:

Electrical spike protection is provided as standard on all four input channels using opto-isolators. This protects any connected equipment from most system faults; a particularly valuable benefit as equipment requiring the most data, such as a PC or chart plotter, is often the most expensive to repair or replace.

The NDC-2 Data Multiplexer contains highly intelligent software that manages the multiplexing and filtering operation, allowing every input to have a chance of its data reaching the combined NMEA output. Tested up to and beyond a combined 300% loading of the four inputs.

  • It enables the vessel owner complete access to all NMEA data sources, instead of the standard one device
  • Each NMEA input device is Opto-isolated from all other NMEA device in the system
  • Any NMEA data not required can be easily filtered out to reduce the total amount of NMEA data in the system
  • Each input and output baud rate can be changed to match the requirements of connected devices
Supply voltage 8 35 V
Supply current Supply voltage 12v (no load) 110 120 mA
 

 

Supply voltage 24v (no load)

 

70

 

75

 

mA

 

NMEA in/out
Input voltage tolerance Continuous operation

Short Term Operation (<1 sec)

-15

-35

+15

+35

V

V

Differential input voltage Required level for data to be detected 1.8 V
Output current RS485/RS422 compatible 32 mA
Input to output protection Full Galvanic Opto-isolation protection 2000 V
Baud rate Configurable Baud rate 4800 38400 bps
Data propagation delay

 

 

 

1

 

100

 

msec

 

RS232 in/out
Input voltage tolerance -15 +15 V
Input voltage threshold Logical LOW

Logical HIGH

0.8

1.7

1.2

2.8

V

V

Output resistance Output voltage swing +/-2V 300 ohms
Baud rate Configurable Baud rate 4800 115200 bps
Data propagation delay

 

 

 

1

 

100

 

msec

 

General
Ambient temperature -20 +70 °C

The Actisense NMEA Multiplexer / Combiner allows connection of up to four NMEA (National Marine Electronics Association) inputs to be multiplexed/combined in to one NMEA output.

This approach offers these major advantages:

Electrical spike protection is provided as standard on all four input channels using opto-isolators. This protects any connected equipment from most system faults; a particularly valuable benefit as equipment requiring the most data, such as a PC or chart plotter, is often the most expensive to repair or replace.

The NDC-2 Data Multiplexer contains highly intelligent software that manages the multiplexing and filtering operation, allowing every input to have a chance of its data reaching the combined NMEA output. Tested up to and beyond a combined 300% loading of the four inputs.

  • It enables the vessel owner complete access to all NMEA data sources, instead of the standard one device
  • Each NMEA input device is Opto-isolated from all other NMEA device in the system
  • Any NMEA data not required can be easily filtered out to reduce the total amount of NMEA data in the system
  • Each input and output baud rate can be changed to match the requirements of connected devices
Supply voltage 8 35 V
Supply current Supply voltage 12v (no load) 110 120 mA
 

 

Supply voltage 24v (no load)

 

70

 

75

 

mA

 

NMEA in/out
Input voltage tolerance Continuous operation

Short Term Operation (<1 sec)

-15

-35

+15

+35

V

V

Differential input voltage Required level for data to be detected 1.8 V
Output current RS485/RS422 compatible 32 mA
Input to output protection Full Galvanic Opto-isolation protection 2000 V
Baud rate Configurable Baud rate 4800 38400 bps
Data propagation delay

 

 

 

1

 

100

 

msec

 

RS232 in/out
Input voltage tolerance -15 +15 V
Input voltage threshold Logical LOW

Logical HIGH

0.8

1.7

1.2

2.8

V

V

Output resistance Output voltage swing +/-2V 300 ohms
Baud rate Configurable Baud rate 4800 115200 bps
Data propagation delay

 

 

 

1

 

100

 

msec

 

General
Ambient temperature -20 +70 °C