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DNR-DIO-403
DNR-DIO-403
48-channel TTL digital I/O board for the PowerDNR RACKtangle®
 
The DNR-DIO-403 digital I/O board offers high density I/O and flexibility with 48 5-V-compatible TTL digital channels, configurable as either inputs or outputs in groups of 8-bit ports. All DIO lines are isolated from the rest of the system (they share the same internal ground), and each pin is individually protected against ESD (electrostatic discharge) and overvoltage, making this layer suitable for use in the harsh industrial environment. Guaranteed 3 V @ 16 mA output allows direct interfacing of this layer with solid-state relays and other TTL-compatible devices. The DNR-DIO-403 is an excellent digital I/O solution for a wide array of data acquisition and control applications.
 
Characteristics:
  • 48 digital I/O lines (configured in groups of 8)
  • 5V TTL
  • Per-port configurable direction
  • 16mA per channel output drive capacity
  • Easy connection to digital relays
 
Technical Specifications
Parameters
Digital I/O Lines 48
Logic Level 5V
Port Width 8 bit
Direction per-port configurable
Input FIFO 512 samples
Output FIFO 512 samples
Default Power-up State Input
I/O Throughput Rate 10 kHz; 20 kHz aggregate
Drive Capacity >16 mA per channel, continuous
Input High Voltage: 2.0 V min
Input Low Voltage: 0.8V max
Output High Voltage:
(typical / min)		 3.5 V / 2.5 V @ 3mA; , 3.5 V / 2.4 V@ 15mA,
3.0 V / 2 V @ 24 mA
Output Low Voltage: 0.55V max @ 64 mA
Protection ±30V overvoltage, 7 kV ESD,
22Ω current limiting resistors
Output protection 140mA PTC fuse
Power Consumption 1.2W;
Plus approx. 0.007W/mA of load current
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