Navitron
Systems Ltd
Type NT921HDI & NT922HDI
Technical Specifications

 

NT921 HDI /1 & NT921 HDI /2 tech Specs
NT922 HDI Tech Specs
NT921 HDI /1 Inputs
NT921 HDI /2 Inputs
NT922 HDI Inputs
Supply Voltage
Nom. 12V reg from Autopilot
Supply Voltage
11-40Vdc
Supply Voltage
11-40Vdc
Power Consumption (Excluding Compass)
1.0W
Power Consumption
1.0W
Power Consumption
1.0W
Sin/Cos Sig/Ref Levels
Sin/Cos Sig/Ref Levels
NMEA 0183 Heading Data
Sin Sig Volts
0 - 5Vdc
Sin Sig Volts
±5V or ±12V
$XXHDT
All sentences acceptable at 4800, 9600, 19200, 38400 baud
Cos Sig Volts
0 - 5Vdc
Cos Sig Volts
±5V or ±12V
$XXHDM
Sin/Cos Ref
2.5Vdc
Sin/Cos Ref
2.5Vdc
$XXHCC
$XXHDG
NT921 HDI /1 Outputs
NT921 HDI /2 Outputs
NT922 HDI Outputs
Proprietary Compass Supply
Proprietary Compass Supply
NMEA 0183 Heading Data
Voltage
Nom. 12V reg
Voltage
12Vdc
Ch1 & Ch2
Sentence
Types
$XXHDT $XXHDG
Max Current
100mA
Max Current
20mA

Baud Rates

Independently
Selectable @ 4800, 9600,
19200 & 38400 baud
NMEA 0183 Heading Data
NMEA 0183 Heading Data
Sentence Type
Baud Rates
Update Rates
Sentence Type
Baud Rates
Update Rates
$XXHDG
4800
1Hz 10Hz
$XXHDG
4800
1Hz 10Hz
Update Rates
Independently Selectable @ 1, 8, 10, 20 & 40Hz
combinations
38400
1Hz 10Hz 20Hz
38400
1Hz 10Hz 20Hz
Operating Temp Range
0 - 60ºC
Operating Temp Range
0 - 60ºC
Step by Step
Step Voltage Level
+5Vdc
Compass Safe Distance
0.4m
Compass Safe Distance
0.4m
Step Output
Rate
(selectable)
3, 6, 12, & 24
steps/degree
Mechanical Details
Mechanical Details
Z out
330 Ω
Length
145mm
Length
145mm
Height
45mm
Height
45mm
Operating Temp Range
0 - 60ºC
Width
95mm
Width
95mm
Weight
0.5kg
Weight
0.5kg
Compass Safe Distance
0.4m
Mechanical Details
Length
145mm
Height
45mm
Width
95mm
Weight
0.5kg


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