Additional information
| Weight | 0.33 kg | 
|---|---|
| Dimensions | 13.3 × 13.8 × 3 cm | 
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.
| 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.
| 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 | 
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