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DNR-DIO-401
DNR-DIO-401
24-channel digital input board for the PowerDNR RACKtangle®
 
The DNR-DIO-401 is a digital input board designed for low-speed, high-reliability isolated industrial digital I/O and features 24 digital input channels, I/O throughput rate of 1 kHz, and offers 350 Vrms isolation between boards. The DNR-DIO-401 is compatible with 5-36 V digital logic levels and can accept a wide range of user-supplied power sources (7 to 36 VDC). Digital inputs on the DNR-DIO-401 use a unique programmable hysteresis feature which dramatically improves noise immunity of input signals. All digital inputs are protected with a 100 mA PTC fuse and ESD/overvoltage protection device.
 
Characteristics:
  • 24 digital inputs
  • 5-36V logic levels
  • I/O throughput rate of 1kS/sec
  • User-programmable hysteresis
  • Requires external 7-36V (24V nominal) power source or can use DNA-PC-912
 
Technical Specifications
Parameters
Number of channels 24 digital inputs
Logic Level 5V - VCC
Input FIFO 1024 samples
Default Hysteresis Values Lower DAC limit: 200
Upper DAC limit: 300
Input High Voltage:
(with default hysteresis)		 @7V @12V @24V @36V
4.5V 4.75V 10.5V 13V
Input Low Voltage:
(with default hysteresis)		 @7V @12V @24V @36V
4.25V 4V 6.75V 8.75V
Input Protection ±40V over/under voltage, 7kV ESD
Internal Sampling Rate 2 kHz
I/O Throughput Rate 1 kHz max
Power Requirements (VCC) 7-36V (24V nominal) - external source
or DNA-PC-902 internally
Power Consumption @7V @12V @24V @36V
0.5W 0.6W 0.8W 1.6W
Physical Dimensions 3.875” x 3.875” (98 x 98 mm)
Operating Temp. Range Tested -40 to +85 °C
Operating Humidity 0 - 95%, non-condensing
Isolation 350Vrms