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  4. NK-2.4Y
  5. Specification

Wireless module product information, such as a wireless modem - CIRCUIT DESIGN,INC.



Radio Part    
Parameter Specification Remark
Applicable standard FCC Part 15 / IC RSS-247
ARIB STD-T66 / EN300 440
Communication method Simplex Two-way between paired modules
Communication range 100 m Line of sight
Communication mode 1:1 (Input mode: Output mode)
Number of RF channels -  
Frequency 2403 to 2479 MHz Frequency Hopping
Operating Temp Range -30 to +65 degree C  
Antenna Internal pattern antenna or specified external antennas  
Supply Voltage 2.2 to 5.5 V  
Input / Output response 30 to 60ms  
Communication bitrate 250 kbps  
Weight 3.2 g  
Dimension 35.3 x 17.8 x 3.5 mm  
Soldering Conditions Hand Soldering
Soldering iron temp: 350C within 3 sec
Input mode    
RF output 1.4mW (+20%, -80%)
Supply Current Typ. 3 mA ave.  
Inputs 8 Switch inputs  
Input voltage range -0.3 V to REG+0.3 V REG = Internal voltage 2.058 to 2.142 V
Input voltage threshold

Low Level: 0.4 V (max)

High Level: 1.7 V (min)
Hamming Distance 6  
Output mode    
Supply Current When linked: Typ. 7 mA ave.
During linking: Typ. 14 mA ave.
Outputs 8 switch outputs  
Output voltage range 0.3 V to REG+0.3 V REG = Internal voltage 2.058 to 2.142 V
Output voltage threshold Low Level: 0.9 V (max)
High Level: 1.1 V (min)
Output holding time when communication shutoff

400 ms typ.


*Specifications are subject to change without prior notice