NM-251D-ZDA  filter/ converter with 5 buffered outputs  (User Guide)
 
Introduction, Operation, Input ports , Output ports, Connections, Power Supply, LED Indicators, 
Dip-switch & Jumper settings, Specifications, Printed Circuit board, Downloads, Typical application Certificates
Price ... 240.00 EURO
Connections
Figure 1: Connection to RS-422 Outputs
Figure 2: Connection to TTL outputs
Figure 3: Combined use of TTL and RS-422 outputs
Power supply
The NM-251D-ZDA can be powered within the range of 10-35 VDC. The nominal voltage of 24 Vdc is advised for powering the device in normal operation. Power input port has a protection for incorrect polarity connection of the supplying voltage.
Led Indicators
Inb LED

Inb LED

ON: The NM-251D-ZDA is in operation mode processing the $GPRMC strings

OFF or ON/OFF: Uploaded firmware not correct or NM-251D-ZDA malfunction

Ina LED

Out 3/4 LED

Flashing indicates data transmission to output port 3 and 4

Out 1/2 LED

Flashing indicates data transmission to output port 1 and 2

Out5 LED

Flashing indicates reception from RS-232 port and transmission to Out5 port

 

Printed Circuit Board composite layout
Picture
Specification


Supply Voltage

9 to 35 Vdc

Power Supply Protection

PTC Resetable Fuse

Vmax: 60V, Imax: 40A, Ihold: 0,25A (23°C),

Itrip:0,5A (23°C), Max time to trip (23°C): 2,2sec for 1,25A

Current Consumption

50mA in idle state/ 150mA in full output mode

Inputs

1 x NMEA-0183, optically isolated

Common Mode Rejection: 10kV/usec, Isolation: 480 Vrms

Input Resistance

1,5 KOhm

Outputs

4 x buffered RS-422/TTL (general purpose)

1 x RS-232

1 x RS-422 signal conversion from RS-232 RXD channel or as fifth output

Output protection

Buffered for all RS-422 outputs

Speed for NMEA inputs

    4.800/8/N/1 when input priority encoding mode is selected

Speed for NMEA outputs

    4.800/8/N/1 when input priority encoding mode is selected

Indicators

Functionality mode (Ina)/ (Inb)

Data transmission from output ports 1 and 2 (Out 1/2 LED)

Data transmission from output ports 3 and 4 (Out 3/4 LED)

Data reception from RS-232 interface or output 5 port (Out 5 LED)

Dimensions

Width = 110mm/134,80 mm

Depth = 82 mm

Height = 43 mm

Housing

Styrene


Back
Next